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

    C203A Search Results

    C203A Result Highlights (2)

    Part ECAD Model Manufacturer Description Download Buy
    10106264-C203A01LF Amphenol Communications Solutions PwrBlade+®,Power Connectors, Right Angle, Receptacle, 12ACP 2LP 12S Visit Amphenol Communications Solutions
    10106262-C203A01LF Amphenol Communications Solutions PwrBlade+®,Power Connectors, Right Angle, Header 12ACP 2LP 12S Visit Amphenol Communications Solutions
    SF Impression Pixel

    C203A Price and Stock

    Altech Corporation TC203AX-CU

    SINGLE DISPLAY, 1 OUTPUT TEMP.CO
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey TC203AX-CU Bulk 1 1
    • 1 $111.16
    • 10 $111.16
    • 100 $111.16
    • 1000 $111.16
    • 10000 $111.16
    Buy Now
    Mouser Electronics TC203AX-CU
    • 1 $117.17
    • 10 $115.75
    • 100 $100.18
    • 1000 $100.18
    • 10000 $100.18
    Get Quote
    Powell Electronics TC203AX-CU 3 1
    • 1 $121.75
    • 10 $121.75
    • 100 $121.75
    • 1000 $121.75
    • 10000 $121.75
    Buy Now
    Master Electronics TC203AX-CU
    • 1 $117.82
    • 10 $105.87
    • 100 $95.94
    • 1000 $93.65
    • 10000 $93.65
    Buy Now
    TestEquity LLC TC203AX-CU
    • 1 $140.49
    • 10 $140.49
    • 100 $140.49
    • 1000 $140.49
    • 10000 $140.49
    Buy Now

    Siemens 3SU14012BC203AA0

    CONFIG SWITCH LAMP SCKT RED 110V
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 3SU14012BC203AA0 Box 1
    • 1 $54.06
    • 10 $54.06
    • 100 $54.06
    • 1000 $54.06
    • 10000 $54.06
    Buy Now
    Mouser Electronics 3SU14012BC203AA0
    • 1 $48.49
    • 10 $44.74
    • 100 $40.49
    • 1000 $40.49
    • 10000 $40.49
    Get Quote
    RS 3SU14012BC203AA0 Bulk 1
    • 1 $45.98
    • 10 $41.39
    • 100 $41.39
    • 1000 $41.39
    • 10000 $41.39
    Get Quote

    Panasonic Electronic Components VC20-3A-AC120V-K

    RELAY GEN PURPOSE 3PST 20A 120V
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey VC20-3A-AC120V-K Bulk
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now

    Siemens 6AG41313HC203AA1

    SIMATIC IPC627E (BOX PC)
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 6AG41313HC203AA1 Box 1
    • 1 $6827.45
    • 10 $6827.45
    • 100 $6827.45
    • 1000 $6827.45
    • 10000 $6827.45
    Buy Now
    RS 6AG41313HC203AA1 Bulk 2 Weeks 1
    • 1 $6895.72
    • 10 $6550.94
    • 100 $6550.94
    • 1000 $6550.94
    • 10000 $6550.94
    Get Quote

    Festo CAMF-C6-F-C20-3A

    MAINS FILTER
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey CAMF-C6-F-C20-3A Bulk 1
    • 1 $403.18
    • 10 $403.18
    • 100 $403.18
    • 1000 $403.18
    • 10000 $403.18
    Buy Now

    C203A Datasheets (12)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    C203A Teccor Electronics Cross Reference Data to Teccor Part Numbers (See datasheet appendix) Original PDF
    C203A Digitron Silicon Controlled Rectifier 0.8A RMS, Up to 400 Volts Scan PDF
    C203A Digitron Silicon Controlled Rectifier Scan PDF
    C203A General Electric Semiconductor Data Handbook 1977 Scan PDF
    C203A Loras Industries SILICON CONTROLLED RECTIFIER,600V V(DRM),8A I(T),TO-202 Scan PDF
    C203A Unknown Short Form Datasheet and Cross Reference Data Short Form PDF
    C203A Unknown Short Form Datasheet and Cross Reference Data Short Form PDF
    C203A Unknown Short Form Datasheet and Cross Reference Data Short Form PDF
    C203A Unknown Cross Reference Datasheet Scan PDF
    C203A Unknown Shortform IC and Component Datasheets (Plus Cross Reference Data) Short Form PDF
    C203A Powerex Phase Control Thyristors, SCRs Scan PDF
    C203A Toshiba Diodes / Rectifiers / SCRs Scan PDF

    C203A Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    TRANSISTOR 2N 4401

    Abstract: 2N4401A3 2N4403A3 4401b
    Text: Spec. No. : C203A3 Issued Date : 2003.06.06 Revised Date : 2005.03.09 Page No. : 1/4 CYStech Electronics Corp. General Purpose NPN Epitaxial Planar Transistor 2N4401A3 Description • The 2N4401A3 is designed for using in driver stage of AF amplifier and general purpose switching


    Original
    PDF C203A3 2N4401A3 2N4401A3 500mA/50mA 2N4403A3. UL94V-0 TRANSISTOR 2N 4401 2N4403A3 4401b

    2N44

    Abstract: 2N4401A3 4401b C203A 2N440 TRANSISTOR 2N 4401 2N4403A3 2N4401B 4 npn transistor ic 2n 4401
    Text: Spec. No. : C203A3 Issued Date : 2003.06.06 Revised Date : 2005.10.25 Page No. : 1/4 CYStech Electronics Corp. General Purpose NPN Epitaxial Planar Transistor 2N4401A3 Description • The 2N4401A3 is designed for using in driver stage of AF amplifier and general purpose switching


    Original
    PDF C203A3 2N4401A3 2N4401A3 500mA/50mA 2N4403A3. UL94V-0 2N44 4401b C203A 2N440 TRANSISTOR 2N 4401 2N4403A3 2N4401B 4 npn transistor ic 2n 4401

    sn76131

    Abstract: tlo72cp TOSHIBA 2N3055 M53207P 2N3055 TOSHIBA KIA7313AP kia7640ap LA5530 M5L8155P TBB1458B
    Text: ACTIVE ELECTRONICS COMPONENTS CROSS REFERENCE GUIDE 2SC429GTM 2SC458 2SC458LG 2SC503 2SC504 2SC510 2SC512 2SC519 2SC520A 2SC594 2SC699A 2SC780 2SC809-1 2SC945 2SC3012 2SC3074 2SC3114 2SC3115 2SC3116 2SC3117 2SC3134 2SC3135 2SC3138 2SC3143 2SC3144 2SC3145 2SC3157


    Original
    PDF 2SC429GTM 2SC458 2SC458LG 2SC503 2SC504 2SC510 2SC512 2SC519 2SC520A 2SC594 sn76131 tlo72cp TOSHIBA 2N3055 M53207P 2N3055 TOSHIBA KIA7313AP kia7640ap LA5530 M5L8155P TBB1458B

    Untitled

    Abstract: No abstract text available
    Text: 200 MHz to 6 GHz 35 dB TruPwr Detector ADL5903 Data Sheet FUNCTIONAL BLOCK DIAGRAM Accurate rms-to-dc conversion from 200 MHz to 6 GHz Measurement dynamic range of 35 dB Ripple-free transfer function Single-ended input, 50 Ω source compatible No external matching required


    Original
    PDF ADL5903 630pF CP-8-10) ADL5903ACPZN-R7 ADL5903ACPZN-R2 ADL5903-EVALZ D11769-0-10/13 CP-8-10

    triac mw 137 600G

    Abstract: Transistor s106d1 transistor c103m TYN604 scr pin diagram Triac AC INRUSH CURRENT LIMITER opto diac TYN604 scr datasheet triac bta40-700b firing circuit alternistor "application note" UJT 2N2646
    Text: Thyristor Product Catalog Littelfuse, Inc. 1800 Hurd Drive Irving, Texas 75038 United States of America Phone: +1 972-580-7777 Fax: +1 972-550-1309 Website: http://www.littelfuse.com E-mail: techsalespower@littelfuse.com 2004 Littelfuse, Inc. Thyristor Product Catalog


    Original
    PDF patent6008V S8008D SK020L S6008VS2 S8008L SK025L S6008VS3 S8008R SK025N S6010D triac mw 137 600G Transistor s106d1 transistor c103m TYN604 scr pin diagram Triac AC INRUSH CURRENT LIMITER opto diac TYN604 scr datasheet triac bta40-700b firing circuit alternistor "application note" UJT 2N2646

    Q6012LH2

    Abstract: mw 137 600g shindengen cf 318 rca thyristor manual SCR TAG 665 600 triac mw 137 600G SCR Handbook, rca motorola triac mac635-8 triac tag 252 600 S106D1
    Text: PRODUCT CATALOG & DESIGN GUIDE Power Switching Semiconductor Products Littelfuse Circuit Prot Solutions Portf Consumer Electronics Telecom White Goods Medical Equipment TVSS and Power S DESIGN SUPPORT Live Application Design and Technical Support—Tap into our expertise. Littelfuse engineers are available around the world to help you address design challenges and develop


    Original
    PDF EC114 EC2114v1E0807 Q6012LH2 mw 137 600g shindengen cf 318 rca thyristor manual SCR TAG 665 600 triac mw 137 600G SCR Handbook, rca motorola triac mac635-8 triac tag 252 600 S106D1

    EC103A

    Abstract: To226AB MCR100-2 TAG 85 22 TECCOR EC103A SF1B12 226AB SN051 TO-226-AB BT149A
    Text: SILICON CONTROLLED RECTIFIERS Item Number Part Number 10 15 20 25 30 35 40 GB201 GB201A SN051 AA101 AA10S 2N3032 AA115 2N3029 MCR204 E0100AO 1;0102Aj\ E0102AB E0102AO P0102AA P0102AB 10102 MMBS50S2 X0102AA BT149A BT149A 2N66B1 2N1931 P0109AA P0109AB P0107AA


    Original
    PDF GB201 GB201A SN051 AA101 AA10S 2N3032 AA115 2N3029 MCR204 E0100AO EC103A To226AB MCR100-2 TAG 85 22 TECCOR EC103A SF1B12 226AB TO-226-AB BT149A

    GT 32 DIAC specification sheet

    Abstract: Q6016RH4 equivalent TO812NH specifications TYN604 scr TO805MH Transistor s106d1 TO805MH equivalent smd transistor E72 transistor c103m S6015L equivalent
    Text: Thyristor Product Catalog Teccor Electronics 1800 Hurd Drive Irving, Texas 75038 United States of America Phone: +1 972-580-7777 Fax: +1 972-550-1309 Website: http://www.teccor.com E-mail: power.techsales@teccor.com 2002 Teccor Electronics Thyristor Product Catalog


    Original
    PDF S8012D SK055N S6010L S8012R SK055R S6010LS2 S8012V SK065K S6010LS3 S8015L GT 32 DIAC specification sheet Q6016RH4 equivalent TO812NH specifications TYN604 scr TO805MH Transistor s106d1 TO805MH equivalent smd transistor E72 transistor c103m S6015L equivalent

    Untitled

    Abstract: No abstract text available
    Text: £ C20 CL20 Series Metallized polyester film capacitor Axial-type ƵOutline Drawing df0.05  ƵFeatures Ɣ metallized polyester film, non-inductive wound construction Ɣ Small size, light weight, excellent self-healing property Ɣ Wrapped with polyester adhesive tape and ends filled


    Original
    PDF 220/CR( 10/CR( 375mm 175mm 265mm 355mm 118mm

    C203Y

    Abstract: C203 C203A C203B C203C C203D C203YY
    Text: DIGITRON ELECTRONIC CORP 3bE D • EflMSbD? □□□□□17 T ■ DGE ~C~25 MAXIMUM ALLOWABLE RATINGS R E P E T IT IV E PEA K OFF-STATE V O LTA G E. V d r m “ 1 T c “ ■65 0 to +126 C TY P E C203Y C203YY C203A , C203B C203C C203D 30 60 100 200 300 400


    OCR Scan
    PDF 000QD17 C203Y C203YY C203A C203B C203C C203D 12Vdc, -650C 50/usee, C203

    scr C107

    Abstract: GENERAL ELECTRIC C6A coffee vending machine circuit C107 SCR C107 C107D2 07H3 7N870 SCR C103 2N2322-29
    Text: C 103 C203 - 2 N 50 6 0-64 30-200 3 0 400 ?5 400 05 0.8 0 .3 2 * 85 C 0.50 @ 25’ C tlllS lIlt 0 50 @ 2 5 3C- 1.0 < 85° C C3 GE TYPE 2 N 8 7 7 -8 1 "1 JEDEC C5 2N 2322-29 C6 07 - 2N 2 344-48 25-400 25-200 - C106 C107 C 108 - - - 50 4 00 15-600 1 *« K .


    OCR Scan
    PDF 2N877-81 2N5060-64 2N2322-29 2N1595-99 scr C107 GENERAL ELECTRIC C6A coffee vending machine circuit C107 SCR C107 C107D2 07H3 7N870 SCR C103

    SCR GE C5u

    Abstract: SCR C103 specification of IC 2N1597 scr c108 7N870 GE scr C5u scr C203 2N2346 SCR C106Y1 2N2322-29
    Text: C3 GE TYPE 2N 877-81"1 JEDEC C1 03 C203 - 2N5060-64 C5 30-200 30 400 2N2322-29 C6 07 - 2N 2344-48 25-400 25-200 - C106 C107 C108 - - - 50 400 15-600 1 *« K . 15-600 2N1595-99,A ELECTRICAL SPECIFICATIONS 30-200 VOLTAGE RANGE ? 5 400 FORWARD CONDUCTION •t r m s :i Max. RM S on-state current (A


    OCR Scan
    PDF 2N877-81 2N5060-64 2N2322-29 2N1595-99 SCR GE C5u SCR C103 specification of IC 2N1597 scr c108 7N870 GE scr C5u scr C203 2N2346 SCR C106Y1

    scr C106

    Abstract: C106Y1 equivalent equivalent SCR c106 c106b1 equivalent SCR C106Y1 SCR TRIGGER circuit dc charger ge c106b1 c106 scr SCR C203 SCR 406J
    Text: C 103 C203 - 2 N 50 6 0-64 30-200 3 0 400 ?5 400 05 0.8 0 .3 2 * 85 C 0.50 @ 25’ C tlllS lIlt 0 50 @ 2 5 3C- 1.0 < 85° C C3 GE TYPE 2 N 8 7 7 -8 1 "1 JEDEC C5 2N 2322-29 C6 07 - 2N 2 344-48 25-400 25-200 - C106 C107 C 108 - - - 50 4 00 15-600 1 *« K .


    OCR Scan
    PDF 2N877-81 2N5060-64 2N2322-29 2N1595-99 X45-REF scr C106 C106Y1 equivalent equivalent SCR c106 c106b1 equivalent SCR C106Y1 SCR TRIGGER circuit dc charger ge c106b1 c106 scr SCR C203 SCR 406J

    SCR C103

    Abstract: 7N870 c106 scr scr c108 GE scr C106 scr c103b specifications 2N1597 GE C106B1 2N2346 2N2322-29
    Text: C 103 C203 - 2 N 50 6 0-64 30-200 3 0 400 ?5 400 05 0.8 0 .3 2 * 85 C 0.50 @ 25’ C tlllS lIlt 0 50 @ 2 5 3C- 1.0 < 85° C C3 GE TYPE 2 N 8 7 7 -8 1 "1 JEDEC C5 2N 2322-29 C6 07 - 2N 2 344-48 25-400 25-200 - C106 C107 C 108 - - - 50 4 00 15-600 1 *« K .


    OCR Scan
    PDF 2N877-81 2N5060-64 2N2322-29 2N1595-99 SCR C103 7N870 c106 scr scr c108 GE scr C106 scr c103b specifications 2N1597 GE C106B1 2N2346

    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

    SCR 2N1599

    Abstract: specifications 2N1597 SCR 2N1595 2N1595-99 SCR GE C5u scr c108 scr C203 c106b1 scr GE C106B1 SCR C103
    Text: C 103 C203 - 2 N 50 6 0-64 30-200 3 0 400 ?5 400 05 0.8 0 .3 2 * 85 C 0.50 @ 25’ C tlllS lIlt 0 50 @ 2 5 3C- 1.0 < 85° C C3 GE TYPE 2 N 8 7 7 -8 1 "1 JEDEC C5 2N 2322-29 C6 07 - 2N 2 344-48 25-400 25-200 - C106 C107 C 108 - - - 50 4 00 15-600 1 *« K .


    OCR Scan
    PDF 2N877-81 2N5060-64 2N2322-29 2N1595-99 SCR 2N1599 specifications 2N1597 SCR 2N1595 SCR GE C5u scr c108 scr C203 c106b1 scr GE C106B1 SCR C103

    Transistor C107m

    Abstract: t25000 SCR TRANSISTOR 8TA41600B T106F1 SCR SC160D TIC106M SCR SC136B Triac Q2006R5 BTA417008
    Text: "'ART VJMEEF INDEX Part No. 1N4001 1N4002 1N4003 1N4004 1N4005 1N4006 1N40Q7 1N4622 1N4732 1N4733 1N4744 1N5225 1N5400 1N5401 1N5402 1N5404 1N5405 1N5625 1N750 2N0918 2N1770 2N1771 2N1772 2N1773 2N1774 2N1775 2N1776 2N1777 2N1778 2N1842 2N1843 2N1844 2N1845


    OCR Scan
    PDF 1N4001 1N4002 1N4003 1N4004 1N4005 1N4006 1N40Q7 1N4622 1N4732 1N4733 Transistor C107m t25000 SCR TRANSISTOR 8TA41600B T106F1 SCR SC160D TIC106M SCR SC136B Triac Q2006R5 BTA417008

    C703

    Abstract: 2N2346 GE C106B1 2N2322-29 C103 C106 C106Q1 C107 C108 C203
    Text: C 103 C203 - 2 N 50 6 0-64 30-200 3 0 400 ?5 400 05 0.8 0 .3 2 * 85 C 0.50 @ 25’ C t lllS lI lt 0 50 @ 2 5 3C- 1.0 < 85° C C3 GE TYPE 2 N 8 7 7 -8 1 "1 JEDEC C5 2N 2322-29 C6 07 - 2N 2 344-48 25-400 25-200 - C106 C107 C 108 - - - 50 4 00 15-600 1 *« K .


    OCR Scan
    PDF 2N877-81 2N5060-64 2N2322-29 2N1595-99 C703 2N2346 GE C106B1 C103 C106 C106Q1 C107 C108 C203

    Untitled

    Abstract: No abstract text available
    Text: REV A ECN NO. NEW DESIGN SPECIFICATION DATE ORDER INFORMATION * Current Rating: 3 A * Withstanding Voltage: AC0028 - 3 - XX - XX A1 "L 500 VAC 1 min. Series * Insulation Resistance: 8.5±0.20 APP. r Style 1000 Megohms MIN. Plating: * Contact Resistance:


    OCR Scan
    PDF AC0028 C203A

    C203B

    Abstract: C203YY C203 C203A C203C C203D C203Y
    Text: DIGITRON R e f e r e n c e No. ELECT R O N I C CORP SA-O^T.Y 23 ;r • >»• • _ ' BflMSba? DGDDD17 3bE D T I DGE " C -J ip -iL '* • * nSbm Controlled Rectifier ?6n» Ó.8A RMS C203 UP TO 400 VOLTS MAXIMUM A LLO W A BLE RATINGS TYPE . REPETITIVE PEAK OFF-STATE


    OCR Scan
    PDF DGDDD17 C203Y C203YY C203A C203B C203C C203D 50jusec. C203

    BTA08-600C equivalent

    Abstract: BTA16-600B equivalent BDW84C equivalent TYN 208 equivalent FR207 equivalent 2N3668 MDA2506 mda 2060 1n5399 equivalent 1N4465
    Text: index/cross Reference Industry Part Number Central Part Number Page Industry Part Number 1N 34A 118 1N 60 118 1N 67A Central Part Number Page Industry Part Number 1N 968B 122 1N2838B 129 1N 969B 122 1N2839B 129 118 1N 970B 122 1N2840B 129 1N 87A 118 1N 971B


    OCR Scan
    PDF Z0409ME Z0409MF Z0409NE Z0409NF Z0410BE Z0410BF Z0410DE Z0410DF Z0410ME Z0410MF BTA08-600C equivalent BTA16-600B equivalent BDW84C equivalent TYN 208 equivalent FR207 equivalent 2N3668 MDA2506 mda 2060 1n5399 equivalent 1N4465

    GE C6B

    Abstract: GE C6F SCR C103 GE C6U specifications 2N1597 scr C203 GE C106B1 GE C5U scr c5u GE C106A1
    Text: C 103 C203 - 2 N 50 6 0-64 30-200 3 0 400 ?5 400 05 0.8 0 .3 2 * 85 C 0.50 @ 25’ C tlllS lIlt 0 50 @ 2 5 3C- 1.0 < 85° C GE TYPE C3 2 N 8 7 7 -8 1 "1 JEDEC ELECTRICAL SPECIFICATIONS VOLTAGE RANGE FORWARD CONDUCTION 30-200 •t r m s :i Max. RMS on-state current (A


    OCR Scan
    PDF 2N877-81 2N5060-64 2N2322-29 2N1595-99 GE C6B GE C6F SCR C103 GE C6U specifications 2N1597 scr C203 GE C106B1 GE C5U scr c5u GE C106A1

    scr C203

    Abstract: 2N2344 application 2N2323 C108D1 2N2346 7N870 SCR 2N5061 SCR C103 specifications 2N1597 C103
    Text: C3 GE TYPE 2N877-81"1 JEDEC C103 C203 - 2N5060-64 C5 30-200 30 400 2N2322-29 C6 07 - 2N 2344-48 25-400 25-200 - C106 C107 C108 - - - 50 400 15-600 1 *«K . 15-600 2N1595-99,A ELECTRICAL SPECIFICATIONS 30-200 VOLTAGE RANGE ?5 400 FORWARD CONDUCTION •t r m


    OCR Scan
    PDF 2N877-81 2N5060-64 2N2322-29 2N1595-99 scr C203 2N2344 application 2N2323 C108D1 2N2346 7N870 SCR 2N5061 SCR C103 specifications 2N1597 C103

    SCR GE C5u

    Abstract: scr C203 scr c108 SCR C103 C5U SCR SCR GE C203 GE scr C5u C5U SCR GE 20 watt emergency light circuit emergency light circuit SCR
    Text: GE TYPE JEDEC ELECTRICAL SPECIFICATIONS VOLTAGE RANGE FORWARD CONDUCTION C3 2N 877-81"1 3 0 -2 0 0 •t r m s :i M a x . R M S on-state cu rre n t (A C103 C 203 - 2 N 5 0 6 0 -6 4 3 0 -2 0 0 30 400 05 0 .8 0 .3 2 * 85 C 0 .5 0 @ 25’ C •t í a v i M a x . average o n-state cu rre n t @ 1 8 0 °


    OCR Scan
    PDF 2N877-81 2N5060-64 2N2322-29 2N1595-99 1N5059 1N5060 IN5059 C108B1 C108D1 SCR GE C5u scr C203 scr c108 SCR C103 C5U SCR SCR GE C203 GE scr C5u C5U SCR GE 20 watt emergency light circuit emergency light circuit SCR