Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    S1550 Search Results

    SF Impression Pixel

    S1550 Price and Stock

    Panduit Corp S15-50-M

    CBL TIE LOCKING NAT 50LBS 1.214'
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey S15-50-M Bulk 5,000 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.07411
    • 10000 $0.0689
    Buy Now
    Avnet Americas S15-50-M Bulk 8 Weeks 5,000
    • 1 $47.49
    • 10 $47.49
    • 100 $47.49
    • 1000 $47.49
    • 10000 $47.49
    Buy Now
    Mouser Electronics S15-50-M 99
    • 1 $0.12
    • 10 $0.112
    • 100 $0.104
    • 1000 $0.074
    • 10000 $0.068
    Buy Now
    Arrow Electronics S15-50-M 225 4 Weeks 1
    • 1 $0.0045
    • 10 $0.0045
    • 100 $0.0042
    • 1000 $0.0026
    • 10000 $0.0026
    Buy Now
    Newark S15-50-M Pack 43 1
    • 1 $96.12
    • 10 $96.12
    • 100 $86.72
    • 1000 $83.9
    • 10000 $83.9
    Buy Now
    RS S15-50-M Bulk 7 Weeks 5,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.063
    Get Quote
    Onlinecomponents.com S15-50-M
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.063
    • 10000 $0.054
    Buy Now
    Chip1Stop S15-50-M 225
    • 1 -
    • 10 -
    • 100 $0.0188
    • 1000 $0.0188
    • 10000 $0.0188
    Buy Now
    Sager S15-50-M 5,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.0564
    Buy Now
    TestEquity LLC S15-50-M
    • 1 $67.79
    • 10 $67.79
    • 100 $67.79
    • 1000 $67.79
    • 10000 $67.79
    Buy Now

    Panduit Corp S15-50-C0

    CBL TIE LOCKING BLK 50LBS 1.214'
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey S15-50-C0 Bulk 4,100 100
    • 1 -
    • 10 -
    • 100 $0.1143
    • 1000 $0.10632
    • 10000 $0.09882
    Buy Now
    Mouser Electronics S15-50-C0
    • 1 $0.17
    • 10 $0.154
    • 100 $0.11
    • 1000 $0.103
    • 10000 $0.097
    Get Quote
    Verical S15-50-C0 6,000 400
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.157
    • 10000 $0.1277
    Buy Now
    Newark S15-50-C0 Pack 836 1
    • 1 $12.97
    • 10 $12.97
    • 100 $10.67
    • 1000 $8.61
    • 10000 $8.61
    Buy Now
    RS S15-50-C0 Bulk 291 1
    • 1 $0.115
    • 10 $0.115
    • 100 $0.11
    • 1000 $0.103
    • 10000 $0.103
    Buy Now
    Onlinecomponents.com S15-50-C0 6,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.1218
    • 10000 $0.1009
    Buy Now
    TestEquity LLC S15-50-C0
    • 1 $9.79
    • 10 $9.79
    • 100 $9.79
    • 1000 $9.79
    • 10000 $9.79
    Buy Now

    Panduit Corp S15-50-M0

    CBL TIE LOCKING BLK 50LBS 1.214'
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey S15-50-M0 Bulk 3,000 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.09785
    • 10000 $0.09094
    Buy Now
    Mouser Electronics S15-50-M0 51
    • 1 $0.15
    • 10 $0.15
    • 100 $0.14
    • 1000 $0.096
    • 10000 $0.084
    Buy Now
    Verical S15-50-M0 17,000 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.1607
    • 10000 $0.1158
    Buy Now
    Newark S15-50-M0 Pack 44 1
    • 1 $128.72
    • 10 $128.72
    • 100 $116.13
    • 1000 $112.35
    • 10000 $112.35
    Buy Now
    Onlinecomponents.com S15-50-M0 17,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.1247
    • 10000 $0.0947
    Buy Now
    TestEquity LLC S15-50-M0
    • 1 $90.66
    • 10 $90.66
    • 100 $90.66
    • 1000 $90.66
    • 10000 $90.66
    Buy Now

    Panduit Corp S15-50-C

    CBL TIE LOCKING NAT 50LBS 1.214'
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey S15-50-C Bulk 2,200 100
    • 1 -
    • 10 -
    • 100 $0.0923
    • 1000 $0.08593
    • 10000 $0.07988
    Buy Now
    Mouser Electronics S15-50-C 894
    • 1 $0.12
    • 10 $0.102
    • 100 $0.086
    • 1000 $0.08
    • 10000 $0.072
    Buy Now
    Verical S15-50-C 5,000 800
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.0819
    • 10000 $0.0819
    Buy Now
    Newark S15-50-C Pack 885 1
    • 1 $15.29
    • 10 $15.29
    • 100 $12.58
    • 1000 $10.15
    • 10000 $10.15
    Buy Now
    RS S15-50-C Bulk 1,000 1
    • 1 $0.098
    • 10 $0.098
    • 100 $0.098
    • 1000 $0.089
    • 10000 $0.089
    Buy Now
    Onlinecomponents.com S15-50-C 5,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.063
    • 10000 $0.063
    Buy Now
    TestEquity LLC S15-50-C
    • 1 $7.92
    • 10 $7.92
    • 100 $7.92
    • 1000 $7.92
    • 10000 $7.92
    Buy Now

    Panduit Corp S15-50-C2

    CBL TIE LOCKING RED 50LB 1.214'
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey S15-50-C2 Bulk 700 1
    • 1 $0.17
    • 10 $0.164
    • 100 $0.1531
    • 1000 $0.14597
    • 10000 $0.14597
    Buy Now
    Avnet Americas S15-50-C2 8 Weeks 1,000
    • 1 $8.25
    • 10 $8.25
    • 100 $8.25
    • 1000 $8.25
    • 10000 $8.25
    Buy Now
    Mouser Electronics S15-50-C2
    • 1 $0.17
    • 10 $0.157
    • 100 $0.153
    • 1000 $0.146
    • 10000 $0.138
    Get Quote
    RS S15-50-C2 Bulk 7 Weeks 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.118
    • 10000 $0.11
    Get Quote
    Onlinecomponents.com S15-50-C2
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.094
    • 10000 $0.094
    Buy Now
    Sager S15-50-C2 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.1137
    • 10000 $0.0904
    Buy Now
    TestEquity LLC S15-50-C2
    • 1 $11.77
    • 10 $11.77
    • 100 $11.77
    • 1000 $11.77
    • 10000 $11.77
    Buy Now

    S1550 Datasheets (7)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    S1550 Pericom Semiconductor PECL Original PDF
    S15-50 Unknown Semiconductor Master Cross Reference Guide Scan PDF
    S15-50 Unknown Shortform Power Data Book Short Form PDF
    S15-50-C Panduit Uncategorized - Miscellaneous - STRONGHOLD CABLE TIE, 14.57."L ( Original PDF
    S15-50-C0 Panduit Uncategorized - Miscellaneous - STRONGHOLD CABLE TIE, 14.57"L (3 Original PDF
    S15-50-M Panduit Cables, Wires - Management - Cable Ties and Cable Lacing - STRONGHOLD CABLE TIE, 14.57L (37 Original PDF
    S15-50-M0 Panduit Uncategorized - Miscellaneous - STRONGHOLD CABLE TIE, 14.57"L (3 Original PDF

    S1550 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    DS-157

    Abstract: S1550
    Text: SaRonix Voltage Controlled Crystal Oscillator PECL Technical Data S1550 Series ACTUAL SIZE Frequency Range: 38.88 MHz to 155.52 MHz Frequency Stability: ±20, ±25, ±50, or ±100 ppm over all conditions: operating temperature, supply voltage change, load change, calibration


    Original
    PDF S1550 100mA DS-157 DS-157

    Saronix

    Abstract: S1550 Saronix CRYSTAL oscillator ds 157
    Text: SaRonix Voltage Controlled Crystal Oscillator PECL Technical Data S1550 Series ACTUAL SIZE Frequency Range: 38.88 MHz to 155.52 MHz Frequency Stability: ±20, ±25, ±50, or ±100 ppm over all conditions: operating temperature, supply voltage change, load change, calibration


    Original
    PDF S1550 100mA DS-157 Saronix Saronix CRYSTAL oscillator ds 157

    MGA010

    Abstract: marking code 749 Philips DATE CODE S1550 MARKING CODE 515
    Text: SARONIX B.V. DATA SHEET 9922 515 650. series Voltage Controlled Crystal Oscillator Type S1550 in DIL-14 ECL Product specification File under SARONIX B.V., SBV2 1998 May 12 SaRonix B.V. Doetinchem, The Netherlands Product specification Voltage Controlled Crystal Oscillator


    Original
    PDF S1550 DIL-14 MGA010 MGA010 marking code 749 Philips DATE CODE MARKING CODE 515

    VCX02

    Abstract: VCX04 VCX06 S1500 b5 SMD S1527 S1550 9X13 S1310 45 MHz dil
    Text: NEW VCXO ceramic LCC Product family freq. range MHz housing DIL-14 operating temp (˚C) S1500 S1527 S1528 1.5 - 100 1.5 - 100 1.5 - 65 – 30/+80 ceramic LCC 9x9x3 mm 0/+70 DIL-14 0/+70 DIL-14 0/+70 plastic SMD 9x13x6 mm S1550 VCX02 VCX03 VCX04 VCX05 VCX06


    Original
    PDF DIL-14 S1500 S1527 S1528 9x13x6 S1550 VCX02 VCX03 VCX02 VCX04 VCX06 S1500 b5 SMD S1527 S1550 9X13 S1310 45 MHz dil

    S1550-5MG

    Abstract: No abstract text available
    Text: S1550-5MG v 1.0 31.10.2013 Description S1550-5MG is an IR laser diode emitting at typically 1540 nm with rated output power of 5 mW cw, in a standard 5.6 mm TO package with integrated monitor photodiode. It is available with flat window cap or ball lens Maximum Ratings


    Original
    PDF S1550-5MG S1550-5MG

    SRD00225G

    Abstract: SRD00224G SRD00224H SRD00224O SRD00224Q SRD00225H SRD00225N SRD00225O STM-16 PIN photodiode 1310
    Text: Fiber Optics Ternary PIN Photodiode SRD00224x SRD00225x Features • InGaAs/InP PIN photodiode • Designed for applications in fiber-optics communication systems • Sensitive receiver for 2nd and 3rd optical window 1300 nm and 1550 nm • Suitable for bit rates up to 2.5 Gbit/s


    Original
    PDF SRD00224x SRD00225x OC-48, STM-16 SRD00225G SRD00224G SRD00224H SRD00224O SRD00224Q SRD00225H SRD00225N SRD00225O STM-16 PIN photodiode 1310

    Untitled

    Abstract: No abstract text available
    Text: S1550L 15A SURFACE MOUNT TRENCH MOS SCHOTTKY RECTIFIER WON-TOP ELECTRONICS Pb Features        Trench MOS Schottky Technology Low Profile Flatpack 1.1mm Case Height Extremely Fast Switching Low Forward Voltage Drop Low Conduction Losses


    Original
    PDF TMS1550L O-277 O-277,

    SRD00217G

    Abstract: SRD00217H SRD00217N SRD00217O STM-16 PIN photodiode 1310 InGaas PIN photodiode, 1550 sensitivity application
    Text: Fiber Optics Ternary PIN Photodiode in Receptacle Package SRD00217x Features • InGaAs/InP PIN photodiode • Designed for applications in fiber-optics communication systems • Sensitive receiver for 2nd and 3rd optical window 1300 nm and 1550 nm • Suitable for bit rates up to 2.5 Gbit/s


    Original
    PDF SRD00217x OC-48, STM-16 SRD00217G SRD00217N SRD00217G SRD00217H SRD00217N SRD00217O STM-16 PIN photodiode 1310 InGaas PIN photodiode, 1550 sensitivity application

    V23875

    Abstract: V23875-S3130-C100 optical fiber communication and system
    Text: Fiber Optics V23875-S3130-x100 High Power BIDI Optical Component 1310 nm Tx, 1550 nm Rx Preliminary Data The V23875-S3130-x100 is a bi-directional optical component designed for full-duplex communication over a single fiber. The single fiber concept saves


    Original
    PDF V23875-S3130-x100 V23875-S3130-x100 nm/1550 V23875 V23875-S3130-C100 optical fiber communication and system

    philips tcxo 4322 191

    Abstract: TDA 17821 philips 341 mkc TDA 7283 PHILIPS TCXO 4322 191 2 capacitor philips 341 mkc tda 3050 Philips 2222 053 90032 capacitors 594 varistor philips UAA 1250
    Text: BC Components Product Guide 1999 Contents Page BC Components 5 World Wide Web 6 Ordering 7 New Products & Highlights 9 Series Index 10 Ceramic Capacitors, Leaded 13 Film Capacitors 34 Electrolytic Capacitors 59 Film Dielectric Trimmer Capacitors 103 Fixed Linear Resistors


    Original
    PDF BCB01 philips tcxo 4322 191 TDA 17821 philips 341 mkc TDA 7283 PHILIPS TCXO 4322 191 2 capacitor philips 341 mkc tda 3050 Philips 2222 053 90032 capacitors 594 varistor philips UAA 1250

    201100A

    Abstract: dc to 3 ghz lna amplifier application circuits S1498 a 4514 v 112883 940462 260016 rf amplifier 10 ghz s1498 schematics power supply satellite receiver S1550
    Text: APPLICATION NOTE SKY65047-360LF Matching Circuits for Various Frequency Bands Introduction S-Parameter and Noise Parameter Data Skyworks SKY65047-360LF is a high linearity Low Noise Amplifier LNA with an operational frequency of 0.4 to 3.0 GHz. The device is manufactured with an advanced SiGe process and


    Original
    PDF SKY65047-360LF SKY65047-360LF 01100A 201100A dc to 3 ghz lna amplifier application circuits S1498 a 4514 v 112883 940462 260016 rf amplifier 10 ghz s1498 schematics power supply satellite receiver S1550

    Fabry-Perot-Laser-Diode

    Abstract: Fabry-Perot-Laser-Diode 1550 nm GR-468-CORE S1550 SBH52413DC SBL52413DC SBM52413DC
    Text: Fiber Optics 2Port T-BIDI Optical Module 1300 nm Emitting, 1550 nm Receiving MU-Receptacle SBx52413DC Preliminary Data Features • Integrated Wavelength Division Multiplexer WDM • Bi-Directional Transmission in 2nd and 3rd optical window • Single fiber solution


    Original
    PDF SBx52413DC Fabry-Perot-Laser-Diode Fabry-Perot-Laser-Diode 1550 nm GR-468-CORE S1550 SBH52413DC SBL52413DC SBM52413DC

    SR2500ALLXR

    Abstract: AXXBASICRAIL SR2500 SR1550ALR SR1500ALSASR AXXSASIOMOD SR1550AL 750Watt 750-watt SR2500ALBRPR
    Text: Product Brief Intel Server Systems SR1500AL, SR1550AL, and SR2500AL Intel® Server Systems SR1500AL, SR1550AL, and SR2500AL A Family of Rack-Optimized, Highly-Integrated Server Systems Designed for Flexible, High-Density Server Solutions • The 2U systems handle more demanding departmental


    Original
    PDF SR1500AL, SR1550AL, SR2500AL 0807/EOH/MS/XX/PDF 311913-002US SR2500ALLXR AXXBASICRAIL SR2500 SR1550ALR SR1500ALSASR AXXSASIOMOD SR1550AL 750Watt 750-watt SR2500ALBRPR

    Untitled

    Abstract: No abstract text available
    Text: SaRonix Voltage Controlled Crystal Oscillator 5V PECL Technical Data S1552 Series ACTUAL SIZE 77.76 MHz to 155.52 MHz Frequency Stability: ±50, or ±100 ppm over all conditions: operating temperature, supply voltage change, load change, calibration tolerance, aging*,


    Original
    PDF S1552 100mA Cen00 DS-157

    V23875-S

    Abstract: V23875 The Diode with Package Outlines optical fiber communication and system
    Text: Fiber Optics V23875-S3130-x300 High Power BIDI Optical Component 1310 nm Tx, 1550 nm Rx Preliminary Data The V23875-S3130-x300 is a bi-directional optical component designed for full-duplex communication over a single fiber. The single fiber concept saves


    Original
    PDF V23875-S3130-x300 V23875-S3130-x300 nm/1550 V23875-S V23875 The Diode with Package Outlines optical fiber communication and system

    V23875-S2130-x300

    Abstract: FP-Laser-Diode infineon X300 GR-468-CORE S1550 dual beam laser Laser Diode 1550 nm dBm label infineon date code laser diode Spectral Width 1 nm, 1550 nm, power 2
    Text: Fiber Optics V23875-S2130-x300 Medium Power BIDI Optical Component 1310 nm Tx, 1550 nm Rx Preliminary Data The V23875-S2130-x300 is a bi-directional optical component designed for full-duplex communication over a single fiber. The single fiber concept saves


    Original
    PDF V23875-S2130-x300 V23875-S2130-x300 nm/1550 FP-Laser-Diode infineon X300 GR-468-CORE S1550 dual beam laser Laser Diode 1550 nm dBm label infineon date code laser diode Spectral Width 1 nm, 1550 nm, power 2

    SRD00214G

    Abstract: SRD00214H SRD00214N SRD00214O SRD00214Q SRD00215G SRD00215H SRD00215N SRD00215O STM-16
    Text: Fiber Optics Ternary PIN Photodiode SRD00214x SRD00215x Features • InGaAs/InP PIN photodiode • Designed for applications in fiber-optics communication systems • Sensitive receiver for 2nd and 3rd optical window 1300 nm and 1550 nm • Suitable for bit rates up to 2.5 Gbit/s


    Original
    PDF SRD00214x SRD00215x OC-48, STM-16 SRD00214G SRD00214H SRD00214N SRD00214O SRD00214Q SRD00215G SRD00215H SRD00215N SRD00215O STM-16

    SMA-50-3

    Abstract: assembly instruction 16 SMA-50-3-3 16 SMA-50-3-3 SMA-50-3-3 EZ141 sma assembly instruction instruction sma
    Text: Huber+Suhner - Cable Connectors Details Order number: SUHNER Type: Order Number: Series: Type: 16SMA-50-3-3 Search Picture 16 SMA-50-3-3 / 111 NH 22646569 SMA EZ 141 AL/M17 Cable Type: Cable entry: outer contact: center contact: Elecrical Data: Impedance:


    Original
    PDF 16SMA-50-3-3 SMA-50-3-3 AL/M17 MIL-STD-348 S155062 M03068 SMA-50-3 assembly instruction 16 SMA-50-3-3 16 SMA-50-3-3 EZ141 sma assembly instruction instruction sma

    FC Receptacle

    Abstract: TO46 package PIN photodiode 1310 InGaas PIN photodiode, 1550 sensitivity "Fiber Optic receiver" InGaas PIN photodiode, 1550 ir photodiode amplifier IR receiver ir receiver transistor pin Photodiode 1550 nm
    Text: SRD00217x Ternary PIN Photodiode in Receptacle Package Dimensions in mm SRD00217G SRD00217N • • • • • • Low junction and low package capacitance Fast switching times Low dark current Excellent noise immunity High reverse current stability from planar structure


    Original
    PDF SRD00217x SRD00217G SRD00217N OC-48, STM-16 D-13623, FC Receptacle TO46 package PIN photodiode 1310 InGaas PIN photodiode, 1550 sensitivity "Fiber Optic receiver" InGaas PIN photodiode, 1550 ir photodiode amplifier IR receiver ir receiver transistor pin Photodiode 1550 nm

    cooler master fan

    Abstract: 2410ML-04W-B60 DC1205SY dynaeon PGA socket 478 cooler clip DC1205 DC1205B 50102B AMD Thermal Design Guide HSC002P124
    Text: AMD-K6 ® Processor Thermal Solution Design Application Note Publication # 21085 Rev: G Issue Date: August 1998 Amendment/0 This document contains information on a product under development at Advanced Micro Devices. The information is intended to help you evaluate this product. AMD reserves the


    Original
    PDF 21085G/0--August cooler master fan 2410ML-04W-B60 DC1205SY dynaeon PGA socket 478 cooler clip DC1205 DC1205B 50102B AMD Thermal Design Guide HSC002P124

    smd diode UJ 64 A

    Abstract: SLD3237VFR 20/SPL1550-10-9-PD SLD3237VF smd diode UM 08 smd diode UM RLCD-M66H-750 RLT905-30G SLD3236VF RLT6650GLI
    Text: PRICE LIST 03/2015 Wiedner Hauptstrasse 76, Vienna, Austria EUR USD Tel: +43-1-586 52 430, Fax: +43-1-586 52 43 44 1,00 1,10182 office@roithner-laser.com, www.roithner-laser.com 2015-06-03 last update 2015-06-03 LASER DIODES - UV EUR USD 1-9 pcs. 1-9 pcs.


    Original
    PDF RLU4116E, RLT390-50CMG, RLT395-50CMG, RLT400-50CMG, TH06-1W, ATU61938489, AT1212 AT3112 smd diode UJ 64 A SLD3237VFR 20/SPL1550-10-9-PD SLD3237VF smd diode UM 08 smd diode UM RLCD-M66H-750 RLT905-30G SLD3236VF RLT6650GLI

    DS-157

    Abstract: No abstract text available
    Text: SaRonix Voltage Controlled Crystal Oscillator ECL Technical Data S1550 Series Frequency R ange: 32 MHz to 200 MHz Frequency Stability: ±25, ±50 or ±100 ppm over all conditions: operating temperature, supply voltage change, load change and aging. T em perature Range:


    OCR Scan
    PDF S1550 0DD02E1 DS-157

    DM74367

    Abstract: 54175 71ls97 DM74109 DM8160 om541 ci 8602 gn block diagram 5401 DM transistor 74L10 74S136
    Text: N ational Semiconductor Section 1 - 54/74 SSI DEVICES Connection Diagram s • Electrical Tables Section 2 - 54/74 M SI DEVICES Section 3 - National Semiconductor PROPRIETARY DEVICES Section 4 - National Semiconductor ADDITIONAL D EV KES t o NATIONAL Manufactured under one or more of the fo llowing U.S. patents: 3083262, 3189758, 3231797 , 3303356, 3317671, 3323071, 3381071, 3408542, 3421025, 3426423, 3440498, 3518750, 3519897, 3557431, 3560765,


    OCR Scan
    PDF

    MHW721A2

    Abstract: 13001 S 6D TRANSISTOR atv5030* motorola 2N5591 MOTOROLA 13001 6D TRANSISTOR BGY41 MHW710-1 construction linear amplifier 2sc1945 7119 amperex bf503
    Text: Volume I Selector Guide 1 Discrete Transistor Data Sheets 2 Case Dimensions 3 Volume II Selector Guide Amplifier Data Sheets 5 Tuning, Hot Carrier and PIN Diode Data Sheets 6 Technical Information Case Dimensions 8 Cross Reference and Sales Offices 9 MOTOROLA RF DEVICE DATA


    OCR Scan
    PDF 1PHX11136Q-14 MHW721A2 13001 S 6D TRANSISTOR atv5030* motorola 2N5591 MOTOROLA 13001 6D TRANSISTOR BGY41 MHW710-1 construction linear amplifier 2sc1945 7119 amperex bf503