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

    1N5279B Search Results

    SF Impression Pixel

    1N5279B Price and Stock

    Microchip Technology Inc 1N5279BUR-1/TR

    VOLTAGE REGULATOR
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 1N5279BUR-1/TR Cut Tape 172 1
    • 1 $4.98
    • 10 $4.98
    • 100 $4.98
    • 1000 $4.98
    • 10000 $4.98
    Buy Now
    1N5279BUR-1/TR Digi-Reel 1
    • 1 $4.98
    • 10 $4.98
    • 100 $4.98
    • 1000 $4.98
    • 10000 $4.98
    Buy Now
    1N5279BUR-1/TR Reel 182
    • 1 -
    • 10 -
    • 100 -
    • 1000 $4.63005
    • 10000 $4.63005
    Buy Now
    Mouser Electronics 1N5279BUR-1/TR
    • 1 -
    • 10 -
    • 100 -
    • 1000 $4.63
    • 10000 $4.63
    Get Quote
    Microchip Technology Inc 1N5279BUR-1/TR
    • 1 $4.98
    • 10 $4.98
    • 100 $4.63
    • 1000 $4.2
    • 10000 $4.2
    Buy Now
    NAC 1N5279BUR-1/TR 70
    • 1 $5.24
    • 10 $5.24
    • 100 $4.75
    • 1000 $4.34
    • 10000 $4.34
    Buy Now
    Master Electronics 1N5279BUR-1/TR
    • 1 -
    • 10 -
    • 100 -
    • 1000 $4.37
    • 10000 $4.24
    Buy Now

    Microchip Technology Inc 1N5279B

    DIODE ZENER 180V 500MW DO35
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 1N5279B Bulk 304
    • 1 -
    • 10 -
    • 100 -
    • 1000 $2.71
    • 10000 $2.71
    Buy Now
    Avnet Americas 1N5279B Bulk 14 Weeks 304
    • 1 $2.9
    • 10 $2.9
    • 100 $2.71
    • 1000 $2.6
    • 10000 $2.6
    Buy Now
    Mouser Electronics 1N5279B 4,312
    • 1 $2.9
    • 10 $2.9
    • 100 $2.71
    • 1000 $2.7
    • 10000 $2.7
    Buy Now
    Microchip Technology Inc 1N5279B 204 1
    • 1 $2.9
    • 10 $2.9
    • 100 $2.9
    • 1000 $2.9
    • 10000 $2.9
    Buy Now
    Onlinecomponents.com 1N5279B
    • 1 -
    • 10 $3.16
    • 100 $2.84
    • 1000 $2.55
    • 10000 $2.48
    Buy Now
    NAC 1N5279B 120
    • 1 $3.06
    • 10 $3.06
    • 100 $2.77
    • 1000 $2.54
    • 10000 $2.54
    Buy Now
    Master Electronics 1N5279B
    • 1 -
    • 10 $3.16
    • 100 $2.84
    • 1000 $2.55
    • 10000 $2.48
    Buy Now

    Microchip Technology Inc 1N5279BE3

    VOLTAGE REGULATOR
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 1N5279BE3 Bulk 304
    • 1 -
    • 10 -
    • 100 -
    • 1000 $2.76
    • 10000 $2.76
    Buy Now
    Avnet Americas 1N5279BE3 Bulk 14 Weeks 304
    • 1 $2.96
    • 10 $2.96
    • 100 $2.76
    • 1000 $2.64
    • 10000 $2.64
    Buy Now
    Mouser Electronics 1N5279BE3 288
    • 1 $2.96
    • 10 $2.96
    • 100 $2.76
    • 1000 $2.76
    • 10000 $2.76
    Buy Now
    Microchip Technology Inc 1N5279BE3 1,562 1
    • 1 $2.96
    • 10 $2.96
    • 100 $2.96
    • 1000 $2.96
    • 10000 $2.96
    Buy Now
    NAC 1N5279BE3 117
    • 1 $3.12
    • 10 $3.12
    • 100 $2.83
    • 1000 $2.59
    • 10000 $2.59
    Buy Now
    Master Electronics 1N5279BE3
    • 1 -
    • 10 -
    • 100 $4.24
    • 1000 $2.91
    • 10000 $2.91
    Buy Now

    Microchip Technology Inc 1N5279B-1

    VOLTAGE REGULATOR
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 1N5279B-1 Bulk 304
    • 1 -
    • 10 -
    • 100 -
    • 1000 $2.71
    • 10000 $2.71
    Buy Now
    Avnet Americas 1N5279B-1 Bulk 14 Weeks 304
    • 1 $2.9
    • 10 $2.9
    • 100 $2.71
    • 1000 $2.6
    • 10000 $2.6
    Buy Now
    Mouser Electronics 1N5279B-1
    • 1 -
    • 10 -
    • 100 -
    • 1000 $2.71
    • 10000 $2.71
    Get Quote
    Microchip Technology Inc 1N5279B-1 1
    • 1 $2.9
    • 10 $2.9
    • 100 $2.9
    • 1000 $2.9
    • 10000 $2.9
    Buy Now
    Onlinecomponents.com 1N5279B-1
    • 1 -
    • 10 -
    • 100 $4.16
    • 1000 $2.85
    • 10000 $2.85
    Buy Now
    NAC 1N5279B-1 120
    • 1 $3.06
    • 10 $3.06
    • 100 $2.77
    • 1000 $2.54
    • 10000 $2.54
    Buy Now
    Master Electronics 1N5279B-1
    • 1 -
    • 10 -
    • 100 $4.16
    • 1000 $2.85
    • 10000 $2.85
    Buy Now

    Central Semiconductor Corp 1N5279B BK

    DIODE ZENER 180V 500MW DO35A
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 1N5279B BK Box
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now

    1N5279B Datasheets (27)

    Part ECAD Model Manufacturer Description Curated Type PDF
    1N5279B Fairchild Semiconductor Absolute Maximum Ratings Original PDF
    1N5279B Microsemi Zener Voltage Regulator Diode Original PDF
    1N5279B Microsemi Diodes - Zener - Single, Discrete Semiconductor Products, DIODE ZENER 500MW 180V DO-35 Original PDF
    1N5279B Motorola 500 mW DO-35 Glass Zener Voltage Regulator Diodes Original PDF
    1N5279B BKC International DO-35 Glass 0.5 Watt Zener Diodes Scan PDF
    1N5279B Central Semiconductor ZENER DIODE 2.4 VOLTS THRU 200 VOLTS 500mW, 5% TOLERANCE Scan PDF
    1N5279B Microsemi Zener Voltage Regulator Diode Scan PDF
    1N5279B Microsemi Zener Voltage Regulator Diode Scan PDF
    1N5279B Microsemi Zener Voltage Regulator Diode Scan PDF
    1N5279B Motorola Motorola Semiconductor Datasheet Library Scan PDF
    1N5279B Motorola The European Selection Data Book 1976 Scan PDF
    1N5279B Motorola European Master Selection Guide 1986 Scan PDF
    1N5279B Unknown Semiconductor Devices, Diode, and SCR Datasheet Catalog Scan PDF
    1N5279B Unknown Historical semiconductor price guide (US$ - 1998). From our catalog scanning project. Historical PDF
    1N5279B Unknown Shortform Semicon, Diode, and SCR Datasheets Short Form PDF
    1N5279B Semitronics Voltage Reference Diodes / Silicon Zener Diodes (Low Quality Datasheet) Scan PDF
    1N5279B STMicroelectronics Shortform Data Book 1988 Short Form PDF
    1N5279B Thomson-CSF Shortform Semiconductor Catalogue 1982 Short Form PDF
    1N5279B BK Central Semiconductor Discrete Semiconductor Products - Diodes - Zener - Single - DIODE ZENER 180V 500MW DO35A Original PDF
    1N5279B (DO-35) Microsemi Discrete Semiconductor Products - Diodes - Zener - Single - DIODE ZENER 180V 500MW DO35 Original PDF

    1N5279B Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    Untitled

    Abstract: No abstract text available
    Text: Continental Device India Limited An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company SILICON PLANAR ZENER DIODES 1N5223B to 1N5279B 2.7V to 180V DO- 35 Glass Axial Package FEATURES The zeners with glass passivated junction in the hermetically sealed glass package with double studs,


    Original
    PDF 1N5223B 1N5279B 200mA C-120 5279B 080605E

    1N5221B

    Abstract: 1N5222B 1N5223B 1N5224B 1N5225B 1N5226B 1N5227B 1N5279B 1N5239B
    Text: BL GALAXY ELECTRICAL ZENER DIODES 1N5221B - - - 1N5279B POWER DISSIPATION: 500 mW DO-35 GLASS FEATURES Silicon planar power zener diodes Standard Zener voltage tolerance is ±5%. With a "B" suffix. Other tolerances are available upon request. MECHANICAL DATA


    Original
    PDF 1N5221B 1N5279B DO-35 DO-35, MIL-STD-202, 30K/W 1N5252 1N5250 1N5222B 1N5223B 1N5224B 1N5225B 1N5226B 1N5227B 1N5279B 1N5239B

    1N5281B

    Abstract: No abstract text available
    Text: 1N5279B 1N5280B 1N5281B w w w. c e n t r a l s e m i . c o m SILICON ZENER DIODES 500mW, 180 THRU 200 VOLT 5% TOLERANCE nt Ce DESCRIPTION: The CENTRAL SEMICONDUCTOR 1N5279B, 1N5280B, and 1N5281B silicon Zener diodes are high voltage regulators for use in industrial and commercial


    Original
    PDF 1N5279B 1N5280B 1N5281B 500mW, 1N5279B, 1N5280B, 1N5281B DO-35A 200mA 1N5279B

    1n5248

    Abstract: 1N5221B 1N5279B 1N5222B 1N5223B 1N5224B 1N5225B 1N5226B 1N5227B 1N5228B
    Text: 1N5221B - 1N5279B tm Zeners Tolerance = 5% Absolute Maximum Ratings* T =25°C unless otherwise noted a Symbol Parameter Value Units 500 4.0 mW mW°C -65 to +200 °C PD Power Dissipation Derate above 50°C TSTG Storage Temperature Range TJ Maximum Junction Operating Temperature


    Original
    PDF 1N5221B 1N5279B DO-35 1N5221B 1N5222B 1N5223B 1N5279B 1n5248 1N5222B 1N5223B 1N5224B 1N5225B 1N5226B 1N5227B 1N5228B

    1n5248

    Abstract: 1N5226B 1N5227B 1N5228B 1N5229B 1N5230B 1N5231B 1N5279B 1N5223B 1N5224B
    Text: Continental Device India Limited An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company SILICON PLANAR ZENER DIODES 1N5223B to 1N5279B 2.7V to 180V DO- 35 Glass Axial Package FEATURES The zeners with glass passivated junction in the hermetically sealed glass package with double studs,


    Original
    PDF 1N5223B 1N5279B 200mA C-120 5279B 080605E 1n5248 1N5226B 1N5227B 1N5228B 1N5229B 1N5230B 1N5231B 1N5279B 1N5224B

    1N5988B

    Abstract: 1N5273B 1N5274B 1N5275B 1N5276B 1N5277B 1N5278B 1N5279B 1N5280B 1N5281B
    Text: Zener Diodes 500 mW Operating Temperature: -55 o C to 150oC CrossReference Norminal Zn. Vltg. @IZT Test Current Max. Zener Impedance @lZT Max. Zener Impedance @ .25mA Part No. 1N5273B 1N5274B 1N5275B 1N5276B 1N5277B 1N5278B 1N5279B 1N5280B 1N5281B 500 mW αvz %/°C


    Original
    PDF 150oC 1N5273B 1N5274B 1N5275B 1N5276B 1N5277B 1N5278B 1N5279B 1N5280B 1N5281B 1N5988B 1N5273B 1N5274B 1N5275B 1N5276B 1N5277B 1N5278B 1N5279B 1N5280B 1N5281B

    SILICON PLANAR zener diode DO-35

    Abstract: 1N5223B 1N5224B 1N5225B 1N5226B 1N5227B 1N5228B 1N5229B 1N5230B 1N5231B
    Text: Continental Device India Limited An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company SILICON PLANAR ZENER DIODES 1N5223B to 1N5279B 2.7V to 180V DO- 35 Glass Axial Package FEATURES The zeners with glass passivated junction in the hermetically sealed glass package with double studs,


    Original
    PDF 1N5223B 1N5279B 200mA C-120 5279B 080605E SILICON PLANAR zener diode DO-35 1N5224B 1N5225B 1N5226B 1N5227B 1N5228B 1N5229B 1N5230B 1N5231B

    MC68B21CP

    Abstract: xcm916x1cth16 transistor marking code 12W SOT-23 sg379 MC68B54P XC68HC805P18CDW mc68b50cp MC2830 NE555N CHN NE555N
    Text: SG379/D REV 7 Semiconductor Products Sector NORTH AMERICA SALES AND DISTRIBUTION PRICE LIST THIS BOOK IS IN COMPUTER SORT PRODUCT CLASSIFICATION – Please see General Information Section 1.3 EFFECTIVE DATE: JANUARY 10, 1998 General Information 1 Cross References


    Original
    PDF SG379/D 1N965BRL ZEN15V 1N751AS 1N967BRL ZEN18V 1N751ASRL 1N968BRL ZEN20V MC68B21CP xcm916x1cth16 transistor marking code 12W SOT-23 sg379 MC68B54P XC68HC805P18CDW mc68b50cp MC2830 NE555N CHN NE555N

    1N5222B

    Abstract: No abstract text available
    Text: TAK CHEONG 500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators Maximum Ratings Note 1 Rating Symbol Value Unit Maximum Steady State Power Dissipation @ TL ≤75°C, Lead Length = 3/8” PD 500 mW 4.0 mW/°C -65 to +200 °C Derate Above 75°C


    Original
    PDF DO-35 DO-204AH) 1N5221B 1N5281B 1N5222B

    Untitled

    Abstract: No abstract text available
    Text: TAK CHEONG Lic e n se d b y O N Se m ic o nd uc to r, A tra d e m a rk o f se m ic o nd uc to r C o m p o n e n ts In d u strie s, LLC f o r Ze ne r Te c hno lo g y a n d Pro d uc ts. 5 0 0 m W D O- 3 5 H e r m e t ica lly Se a le d Gla ss Ze n e r Volt a ge


    Original
    PDF 52xxB 1N52xxB

    transistor mosfet buv18a

    Abstract: M143206EVK MMBF4856 lm358 IC 68hc05sc24 telephone line interface circuit bc517 MC68B54 XC68HC705P9 MPX100ap BUV18A
    Text: Device Index and Subject Index In Brief . . . Page Device Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.1–1 General Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2–1 Subject Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2–9


    Original
    PDF

    k2645

    Abstract: k4005 U664B mosfet k4005 MB8719 transistor mosfet k4004 SN16880N stk5392 STR451 BC417
    Text: 1 BHIAB Electronics Du som söker besvärliga IC & transistorer, börja Ditt sökande hos oss – vi har fler typer på lager än man rimlingen kan begära av ett företag Denna utgåva visar lagerartiklar men tyvärr saknas priser och viss information Men uppdatering sker kontinuerligt


    Original
    PDF MK135 MK136 MK137 MK138 MK139 MK140 Mk142 MK145 MK155 157kr k2645 k4005 U664B mosfet k4005 MB8719 transistor mosfet k4004 SN16880N stk5392 STR451 BC417

    1N5221AUR-1

    Abstract: 1N5248BUR-1
    Text: 1N5221BUR-1 thru 1N5281BUR-1 Available on commercial versions METALLURGICALLY BONDED GLASS SURFACE MOUNT 500 mW ZENERS Screening in reference to MIL-PRF-19500 available DESCRIPTION The 1N5221BUR-1 thru 1N5281BUR-1 series of 0.5 watt Zener voltage regulators provides a


    Original
    PDF 1N5221BUR-1 1N5281BUR-1 MIL-PRF-19500 1N5281BUR-1 1N5221 1N5281 DO-213AA T4-LDS-0232-1, 1N5221AUR-1 1N5248BUR-1

    thermistor KSD201

    Abstract: IRF power mosfets catalog Complementary MOSFETs buz11 BZX85C6V8 SPICE MODEL Diode 1N4001 50V 1.0A DO-41 Rectifier Diode K*D1691 make SMPS inverter welding machine transistor KSP44 1N5402 spice model tip122 tip127 mosfet audio amp
    Text: Fairchild Semiconductor Product Catalog 2004 Microcontrollers Optoelectronics Across the board. Around the world. Analog Discrete Interface & Logic Interface & Logic Discrete Power Optoelectronics Analog & Mixed Signal Fairchild Semiconductor, The Power Franchise™


    Original
    PDF

    Untitled

    Abstract: No abstract text available
    Text: 1N5221B~1N5281B Zener diode Features 1. High reliability 2. Very sharp reverse characteristic 3. Low reverse current level 4. VZ-tolerance±5% Applications Voltage stabilization Absolute Maximum Ratings Tj=25℃ Parameter Test Conditions Type Symbol Value


    Original
    PDF 1N5221B 1N5281B 1-Jan-2006

    1N5259B-1

    Abstract: 1n5224b-1 1N5270B-1
    Text: 1N5221B-1 thru 1N5281B-1 Available on commercial versions Screening in reference to MIL-PRF-19500 available 500 mW GLASS AXIAL-LEAD ZENER DIODES DESCRIPTION The popular 1N5221B-1 thru 1N5281B-1 series of 0.5 watt Zener voltage regulators provides a selection from 2.4 to 200 volts in standard 5% or 10% tolerances as well as tighter tolerances


    Original
    PDF 1N5221B-1 1N5281B-1 MIL-PRF-19500 1N5281B-1 DO-35 T4-LDS-0232, 1N5259B-1 1n5224b-1 1N5270B-1

    1n5224b-1

    Abstract: No abstract text available
    Text: 1N5221B-1 thru 1N5281B-1 Available on commercial versions Screening in reference to MIL-PRF-19500 available 500 mW GLASS AXIAL-LEAD ZENER DIODES DESCRIPTION The popular 1N5221B-1 thru 1N5281B-1 series of 0.5 watt Zener voltage regulators provides a selection from 2.4 to 200 volts in standard 5% or 10% tolerances as well as tighter tolerances


    Original
    PDF 1N5221B-1 1N5281B-1 MIL-PRF-19500 1N5281B-1 DO-35 T4-LDS-0232, 1n5224b-1

    IC HXJ 2038

    Abstract: 1N52398 DB5T tfk 102 cny 70 hxj 2038 rca 40361 transistor rca 40362 TFK 680 CNY 70 Diode Equivalent 1N34A 2n5952 equivalent
    Text: The Engineering Staff of TEXAS INSTRUMENTS INCORPORATED Components Group The T ransistor and Diode Data Book for Design Engineers T e x a s In s t r u m e n t s IN CO RPO RATED TYPE NUMBER INDEX GLOSSARY TRANSISTOR SELECTION GUIDES TRANSISTOR INTERCHANGEABILITY


    OCR Scan
    PDF

    ZENER 18-2 5T

    Abstract: 1N522B 1N522BB 1NS237B 1N5282B ZENER 18- 2 5t BKC Semiconductors
    Text: DO-35 glass 0.5 Watt Use Advantages a Zener Diodes 1N5225B thru 1N5282B For use in clipping and stabilizing circuits, where real protection is needed. Competitive glass replacement for plastic DO-35 zener diodes. Compatible with alt major automatic assembly equipment.


    OCR Scan
    PDF DO-35 1N5225B 1N5282B DO-213AA ZENER 18-2 5T 1N522B 1N522BB 1NS237B 1N5282B ZENER 18- 2 5t BKC Semiconductors

    CENTRAL 1N5274B

    Abstract: 1N5221B 1N5222B 1N5223B 1N5224B 1N5225B 1N5226B 1N5227B 1N5228B 1N5281B
    Text: Data Sheet 1N5221B THRU 1N5281B Central' ZENER DIODE 2.4 VOLTS THRU 200 VOLTS 500mW, 5% TOLERANCE Sem iconductor Corp. 145 Adam s Avenue, Hauppauge, NY 11788 USA Tel: 631 435-1110 • Fax: (631) 435-1824 JEDEC DO-35 CASE M anufacturers of W orld Class Discrete Sem iconductors


    OCR Scan
    PDF 1N5221B 1N5281B 500mW, DO-35 1N5271B 1N5272B 1N5273B 1N5274B 1N5275B CENTRAL 1N5274B 1N5222B 1N5223B 1N5224B 1N5225B 1N5226B 1N5227B 1N5228B

    SP6355

    Abstract: DO213
    Text: Zener Regulator Diodes 1N6028C 1N602SD 1N5276A 1N5276A D 07 1N5276B 1N5276B (D07) MLL5276B 1N6353 SP6353 1N6029A 1N6029B 1N6029C 1N6029D 1N5277A 1N5277A {D07} 1N5277B 1N5277B (D07) MLL5277B 1N5278A 1N5278A (D07) 1N5278B 1N5278B (D07) MLL5278B 1N6354 SP6354


    OCR Scan
    PDF DO-35 DO-213AA SP6355 DO213

    TRIAC 97A6

    Abstract: S0805BH 13003 TRANSISTOR TO220 equivalent triacs bt 804 600v Triac bt 808 600C Diode SOT-23 marking 15d zener diode 1N PH 48 6Bs smd transistor Z0409MF equivalent BT 808 600C
    Text: Central Semiconductor Corp. Represented iSIGNTBOHICS B y: TORONTO I Regan Road, Unit 13, Bram pton, O ntario L7A 1B8 Tel: 905-846-1100 Fax:905-846-7116 E -m a il: d e s ig n tr< a id ire c t.c o m OTTAW A 21 Pine Bluff Trail, Stittsville, O ntario K2S 1E1


    OCR Scan
    PDF OD-80 OD-323 OT-23 OT-89 OT-143 OT-223 OT-323 TRIAC 97A6 S0805BH 13003 TRANSISTOR TO220 equivalent triacs bt 804 600v Triac bt 808 600C Diode SOT-23 marking 15d zener diode 1N PH 48 6Bs smd transistor Z0409MF equivalent BT 808 600C

    1n53838

    Abstract: BZV48C ZENER 1N4 BZY97-C2V7 ZENER 1N5 BZX61 Z500-1 BZV40C ZX85C Z500-21
    Text: ZENER DIODES CROSS REFERENCE INDUSTRY PART NUMBER 1/4 M 2 .4 A Z 10 1/4 M 2 .7 A Z 10 1/4 M 3 .0 A Z 10 1/4 M 3 .3 A Z 10 1/4 M 3 .6 A Z 10 1/4 M 3 .6 A Z 10 1/4 M 3 .9 A Z 10 1/4 M4 .3 A Z 10 1/4 M4 .7 A Z 10 1/4 M 5.1 A Z 10 1/4 M5 .6 A Z 10 1/4 M6 .2 A Z 10


    OCR Scan
    PDF 5270B 4187B 4193B 5226B BZV55C 5257B ZX85C ZP4100 ZP4120 1n53838 BZV48C ZENER 1N4 BZY97-C2V7 ZENER 1N5 BZX61 Z500-1 BZV40C Z500-21

    1N6020B

    Abstract: No abstract text available
    Text: zener Diodes Continued POWER 500 mW CASE DO-35 ZENER VOLTAGE INDUSTRY STANDARD 25 27 1N971B 28 30 33 36 39 43 47 51 56 1N972B 1N973B 1N974B 1N975B 1N976B 1N977B 1N978B 1N979B 60 62 68 75 82 1N980B* 1N981B* 1N982B* 1N983B* 87 91 100 110 120 130 1N984B&#39; 1N985B*


    OCR Scan
    PDF DO-35 1N971B 1N972B 1N973B 1N974B 1N975B 1N976B 1N977B 1N978B 1N979B 1N6020B