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    BC557B SOT23 Search Results

    BC557B SOT23 Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    TBAW56 Toshiba Electronic Devices & Storage Corporation Switching Diode, 80 V, 0.215 A, SOT23 Visit Toshiba Electronic Devices & Storage Corporation
    ISL28114SOT23EVAL1Z Renesas Electronics Corporation Single General Purpose Micropower, RRIO Op Amp Evaluation Board Visit Renesas Electronics Corporation
    ISL28113SOT23EVAL1Z Renesas Electronics Corporation Single General Purpose Micropower, RRIO Op Amp Evaluation Board Visit Renesas Electronics Corporation
    ISL54103IHZ-T7A Renesas Electronics Corporation DDC Accelerator (DDCA), SOT23, /Reel Visit Renesas Electronics Corporation
    EL6204CWZ-T7A Renesas Electronics Corporation Laser Driver Oscillator, SOT23, /Reel Visit Renesas Electronics Corporation

    BC557B SOT23 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    transistor 2N3906 smd 2A SOT23

    Abstract: 2n3904 TRANSISTOR REPLACEMENT GUIDE BC327-40 SMD bc107 TRANSISTOR SMD CODE PACKAGE SOT23 TRANSISTOR BC337-25 PNP BC548 TRANSISTOR REPLACEMENT BC327-25 SMD TRANSISTOR BC337 SMD 2n3906 REPLACEMENT MMBT3094
    Text: Small Signal Transistors Industry Standard BF722 BF723 BFN38 CZTA42 CZTA92 KSA539 KSA643 KSA733 KSC1623 KSC815 MMBT3094 MMBT3906 MMBT4401 MMBT4403 MMBTA42 ST Nearest ST Replacement Industry Standard BF720 BF721 BF720 STZTA42 STZTA92 MMBTA92 MPSA42 MPSA92 MSB709


    Original     		PDF BF722 BF723 BFN38 CZTA42 CZTA92 KSA539 KSA643 KSA733 KSC1623 KSC815 transistor 2N3906 smd 2A SOT23 2n3904 TRANSISTOR REPLACEMENT GUIDE BC327-40 SMD bc107 TRANSISTOR SMD CODE PACKAGE SOT23 TRANSISTOR BC337-25 PNP BC548 TRANSISTOR REPLACEMENT BC327-25 SMD TRANSISTOR BC337 SMD 2n3906 REPLACEMENT MMBT3094

    BC337 noise

    Abstract: BC327 Q1 BC337 sot23 BC327 sot23 Transistor BC327 Q1 bc557c BC549B BC327 SOT 23 bc558b equivalent 2N4401 surface mount
    Text: SMALL SIGNAL BIPOLAR TRANSISTORS VCEO Volt Low Noise 30 Switching 25 30 40 Leaded TO-92 NPN BC549B BC549C 2N4124 BC338-16 BC338-25 BC338-40 BC548A BC548B BC548C 2N3904 2N4401* MPS2222A* BC547A BC547B BC547C Package Surface Mount Device SOT-23 PNP NPN PNP


    Original     		PDF BC549B BC549C 2N4124 OT-23 BC328-16 BC328-25 BC328-40 BC558A BC558B BC558C BC337 noise BC327 Q1 BC337 sot23 BC327 sot23 Transistor BC327 Q1 bc557c BC549B BC327 SOT 23 bc558b equivalent 2N4401 surface mount

    BC337-25 PNP transistor download datasheet

    Abstract: TRANSISTOR BC337-25 PNP 2N3906 Darlington transistor TRANSISTOR BC327-40 BC546B SOT23 transistor transistor bc548b BC338-40 BC556A NPN Transistor BC548B TRANSISTOR BC337-25
    Text: Small-Signal Bipolar Transistors Package Thru-hole TO-92 VCEO 4 (Volt) 20 NPN TO-92 PNP Surface Mount SOT-23 SOT-23 NPN GS9012 500 64 202 2N4126 200 120 360 1V / 2mA 500 100 250 1V / 100mA BC818-25 BC808-25 500 160 400 1V / 100mA BC818-40 BC808-40 500 250


    Original     		PDF OT-23 GS9013 GS9012 2N4124 2N4126 100mA BC818-16 BC808-16 BC818-25 BC337-25 PNP transistor download datasheet TRANSISTOR BC337-25 PNP 2N3906 Darlington transistor TRANSISTOR BC327-40 BC546B SOT23 transistor transistor bc548b BC338-40 BC556A NPN Transistor BC548B TRANSISTOR BC337-25

    2N3904 SOT-23 MARKING CODE

    Abstract: TO226AA Philips TO-92 MARKING CODE BC327 NATIONAL SEMICONDUCTOR AGt marking code nte 2n3904 DALLAS SEMICONDUCTOR 2501 to-226aa BC547C SOT23 NATIONAL SEMICONDUCTOR MARKING CODE sot
    Text: Transistors Manufacturer’s Code Log AGT ANA ADV AVX BNS CRY DLS Agilent Technologies Analog Devices Inc. Advanced Micro Devices AVX Bourns Crydom Company Dallas Semiconductor EPC FSC FJS GIS HVP IRF INT EPCOS Fairchild Semiconductor Fuji Semiconductor General Semiconductor


    Original     		PDF 751B-SO-16) 2N5485 2N5486 O-226AA) 2N3904 SOT-23 MARKING CODE TO226AA Philips TO-92 MARKING CODE BC327 NATIONAL SEMICONDUCTOR AGt marking code nte 2n3904 DALLAS SEMICONDUCTOR 2501 to-226aa BC547C SOT23 NATIONAL SEMICONDUCTOR MARKING CODE sot

    1N914 SOT-23

    Abstract: BC337 SOT-23 BAT48 zener 1N4148 SOD323 BC337 sot23 gfp50n
    Text: G e n e r a l Semiconductor Diodes and Transistors Visit General SemiconductorÕs Website at www.gensemi.com GENFETª Power MOSFETs Small Signal Switching Diodes Mfr.Õs Type N-Channel MOSFETs Leaded Mfr.Õs Type TO-220 TO-252 TO-263 Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ


    Original     		PDF DO-35* OD-80C OD-323• OD-123† OT-23~ OT-23§ O-220 O-252 O-263 1N914 SOT-23 BC337 SOT-23 BAT48 zener 1N4148 SOD323 BC337 sot23 gfp50n

    180M 290

    Abstract: BC157B BCY79CP 6p6p BCY79BP LOW-POWER SILICON PNP BCB07-40 bcb07 BC327BP MMBA811CB
    Text: LOW-POWER SILICON PNP Item Number Part Number 10 BC307B5 JE9015C JE9015C TMPT813S4 BCY79 BCY79P BCY79VII BCW70 BCF70 BCF70 ~g~jgR 15 20 BCF70R BCB57B BC177P BC177PK BC307P BC307PK BC307PL BC560B ~~~7AR 25 30 1T130A KSA539 KSA707 2SA564A BCB60AR BCB60AR BCB60AR


    Original     		PDF BC307B5 JE9015C TMPT813S4 BCY79 BCY79P BCY79VII BCW70 BCF70 BCF70 180M 290 BC157B BCY79CP 6p6p BCY79BP LOW-POWER SILICON PNP BCB07-40 bcb07 BC327BP MMBA811CB

    TRANSISTOR BC337 SMD

    Abstract: transistor BC170 C5198 CDIL 2N2222A Transistor bd139 smd bc337 SMD PACKAGE bd140 SMD equivalent BC109 BC184 BC549 a1941 CDIL BD139
    Text: • Transistors • • • • • Small Signal Medium Power Power Darlington MOSFET CDIL Semiconductors ~ Worldwide Reach Product Profile Transistors Product Range • • Chips/Dice – Diffused Silicon Wafers Surface Mount and Leaded Semiconductor Devices


    Original     		PDF MPSA45 P2N2369 PN2222 MPSA05 MPSA55 P2N2369A PN2222A MPS2907A MPSA06 MPSA56 TRANSISTOR BC337 SMD transistor BC170 C5198 CDIL 2N2222A Transistor bd139 smd bc337 SMD PACKAGE bd140 SMD equivalent BC109 BC184 BC549 a1941 CDIL BD139

    MMBD2104

    Abstract: Transistor NEC 05F hp2835 diode ZENER DIODE t2d what is the equivalent of ZTX 458 transistor MMBD2103 T2D DIODE 3w T2D 8N 2n2222 as equivalent for bfr96 mmbf4932
    Text: The Surface Mount Device Code Book R P Blackwell G4PMK A marsport publication! Introduction SMD devices are, by their very nature, too small to carry conventional semiconductor type numbers. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a


    Original     		PDF BAS32, BAS45, BAV105 LL4148, LL4448 BB241 BB249 LL914 LL4150, MMBD2104 Transistor NEC 05F hp2835 diode ZENER DIODE t2d what is the equivalent of ZTX 458 transistor MMBD2103 T2D DIODE 3w T2D 8N 2n2222 as equivalent for bfr96 mmbf4932

    MMBD2103

    Abstract: ZENER DIODE t2d MMBD2101 MMBD2102 MMBD2104 SMD codes bc107 TRANSISTOR SMD CODE PACKAGE SOT23 Transistor NEC 05F BAT15-115S NDS358N
    Text: THE SMD CODEBOOK SMD Codes. SMD devices are, by their very nature, too small to carry conventional semiconductor type numbers. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two- or three-character ID code.


    Original     		PDF BZV49 BZV55 500mW BAS32, BAS45, BAV105 LL4148, LL4448 BB241 BB249 MMBD2103 ZENER DIODE t2d MMBD2101 MMBD2102 MMBD2104 SMD codes bc107 TRANSISTOR SMD CODE PACKAGE SOT23 Transistor NEC 05F BAT15-115S NDS358N

    SMD Codes

    Abstract: TRANSISTOR SMD T1P MMBD2104 BAW92 smd transistor A6a schottky diode s6 81A a4s smd transistor Transistor SMD a7s transistor SMD P2F MMBD2101
    Text: THE SMD CODEBOOK SMD Codes. SMD devices are, by their very nature, too small to carry conventional semiconductor type numbers. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two- or three-character ID code.


    Original     		PDF BZV49 BZV55 500mW BAS32, BAS45, BAV105 LL4148, LL4448 BB241 BB249 SMD Codes TRANSISTOR SMD T1P MMBD2104 BAW92 smd transistor A6a schottky diode s6 81A a4s smd transistor Transistor SMD a7s transistor SMD P2F MMBD2101

    c547b

    Abstract: c547c c547b transistor c547b W c547c transistor transistor c547c transistor C547b transistor C547 npn BC547 sot54 c547c equivalent
    Text: BC847/BC547 series 45 V, 100 mA NPN general-purpose transistors Rev. 07 — 10 December 2008 Product data sheet 1. Product profile 1.1 General description NPN general-purpose transistors in small plastic packages. Table 1. Product overview Type number[1] BC847


    Original     		PDF BC847/BC547 BC847 O-236AB BC857 BC847A BC857A BC847B BC857B BC847B/DG BC847C c547b c547c c547b transistor c547b W c547c transistor transistor c547c transistor C547b transistor C547 npn BC547 sot54 c547c equivalent

    transistor 2N3906 smd 2A SOT23

    Abstract: BC640 PHILIPS SEMICONDUCTOR smd bc547 smd transistor NPN transistor BC547 temperature sensor bc557 SMD philips datasheet 2N4401 NPN Switching Transistor bc850c smd transistor smd 2N4403 BC547C SOT23 SMD BC557
    Text: Philips Semiconductors – a worldwide company Argentina: see South America Australia: 3 Figtree Drive, HOMEBUSH, NSW 2140, Tel. +61 2 9704 8141, Fax. +61 2 9704 8139 Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. +43 1 60 101 1248, Fax. +43 1 60 101 1210


    Original     		PDF Centr00 MPSA14 MPSA64 PZTA14 PXTA14 BCV29 BCV28 PMBTA13 PMBTA14 PMBTA64 transistor 2N3906 smd 2A SOT23 BC640 PHILIPS SEMICONDUCTOR smd bc547 smd transistor NPN transistor BC547 temperature sensor bc557 SMD philips datasheet 2N4401 NPN Switching Transistor bc850c smd transistor smd 2N4403 BC547C SOT23 SMD BC557

    BC548 BH

    Abstract: BC547 NPN Transistor BC547B npn bc338 signal transistor transistor MPSA77 BC546B SOT23 transistor low noise pnp
    Text: Small Signal Transistors U.S Specifications Preferred Series SOT-23 Case, 350mW (Continued on next page) TYPE NO. BVCBO BVCEO BVEBO *BVCES ICBO @ *I CEV @ VCB (V) (V) (V) (V) (nA) MIN MIN MIN MAX hFE @ VCE @ IC (V) (mA) VCE (SAT) @ IC toff Cob fT (pF) (MHz)


    Original     		PDF OT-23 350mW CMPT8099 CMPT2222A CMPT2222AE CMPT3904 CMPT3904E CMPT4401 BC548 BH BC547 NPN Transistor BC547B npn bc338 signal transistor transistor MPSA77 BC546B SOT23 transistor low noise pnp

    smd code book

    Abstract: transistor SMD P1f marking code W16 SMD Transistor TRANSISTOR SMD MARKING CODE jg smd transistor WW1 Transistor SMD a7s DIODE SMD L4W smd diode zener code pj 78 smd transistor wv4 Motorola transistor smd marking codes
    Text: The SMD Code Book 1st character of code 0123456789 ABCDEFGHI JKLMNOPQ R STUVWXYZ Bases The SMD Codebook R P Blackwell, GM4PMK To look up a coded device, click on the first character of the device code in the table on the left. A-F G-K L-P Q-V W-Z AQ-FQ GQ-LQ


    Original     		PDF OD-80 OD123/323 OT-23, OT346 OT-323, OT-416 OT-223, OT-89 OT-143, OT-363 smd code book transistor SMD P1f marking code W16 SMD Transistor TRANSISTOR SMD MARKING CODE jg smd transistor WW1 Transistor SMD a7s DIODE SMD L4W smd diode zener code pj 78 smd transistor wv4 Motorola transistor smd marking codes

    bc5478

    Abstract: 2n2222a SOT23 BC557 smd sot23 2n2222 sot23 BC547 smd BC547 2N2222 2n3906 sot23 2N2222 SMD SOT23 2n2907 smd 2n4401 smd
    Text: SMD w COMPONENT i w i h www.microelectronoc.co.yu i i S M D S E M IC O N D U C T O R S ON M A R K IN G ^ ^ ^ e l e c t r B n ic [email protected] M A R K IN G T Y PE N U M B E R PACKAGE C O N V E R C IN A L TY PE M A R K IN G T Y PE N U M B E R PACKAGE C O N V E R C IN A L


    OCR Scan     		PDF BZV49-C10 BZV85-C10 BZV49-C11 BZV85-C11 BZV49-C12 S0T89 BZV85-C12 BZV49-C13 BZV85-C13 bc5478 2n2222a SOT23 BC557 smd sot23 2n2222 sot23 BC547 smd BC547 2N2222 2n3906 sot23 2N2222 SMD SOT23 2n2907 smd 2n4401 smd

    BC558A

    Abstract: 2N44Q3 bc327-16 bc558c BC556A 2N4401 surface mount BC337 sot23 BC556B SOT23 BC338-16 MP8A06
    Text: S M A L L SIGNAL BIPOLAR TRANSISTORS PACKAGE Leaded Surface Mount Device TO-92 (SOT-23) # % hFE Veto (Voli) NPN PNP NPN PNP lc (mA) Low Noise BC549B BC559B BC849B BC859B 100 330 30 BC549C BC559C BC849C BC859C 100 600 2N4124 2N4126 Switchino 25 30 40 max.


    OCR Scan     		PDF OT-23) BC549B BC549C 2N4124 BC559B BC559C 2N4126 BC849B BC849C BC859B BC558A 2N44Q3 bc327-16 bc558c BC556A 2N4401 surface mount BC337 sot23 BC556B SOT23 BC338-16 MP8A06

    AC188

    Abstract: 2SA1309 2N2907A-PL 2SA1273 2SA1797Q 2SA1538S 2SA1443-NEC DTA143ES mj15004-mot BCX52GEGSMD
    Text: MHTEPTEKC ww w.i-t.su ¡nfo@ i-t.su Ten: 495 739-09-95, 644-41-29 Tp aH 3M C T O pb l PNP copTMpoBKa no HanpflweHMro Kofl: BFT92 2SB733 AC188 BC369 2SA1273 2SA1309 2SA608 2SA966 2SB774 BC328-25 BC558B BC559C BC858B BC858C BF324 2SA1357 2SA1431 2N2905A 2N2907A


    OCR Scan     		PDF BFT92 2SB733 AC188 BC369 2SA1273 2SA1309 2SA608 2SA966 2SB774 BC328-25 2N2907A-PL 2SA1797Q 2SA1538S 2SA1443-NEC DTA143ES mj15004-mot BCX52GEGSMD

    bc327 smd

    Abstract: smd 2SA970 BC640 smd 2SB772 SMD AC188 bd140 SMD smd 2n2907a smd bc556b 2SA1309 BC327-40 SMD
    Text: MHTEPTEKC ww w.i-t.su ¡nfo@ i-t.su Ten: 495 739-09-95, 644-41-29 TpaH3MCTpbl PNP copTMpoBKa no TOKy KonneKTopa Kofl: Tok [A] BF324 BFT92 BF472 BF970 2SA1123 2SA1124 2SA1145 2SA1360 2SA949 2SA992 BF821 2SA1208 2SA1309 2SA1370 2SA1371E 2SA608 2SA733 2SA933


    OCR Scan     		PDF BF324 BFT92 BF472 T0126 BF970 2SA1123 2SA1124 2SA1145 2SA1360 bc327 smd smd 2SA970 BC640 smd 2SB772 SMD AC188 bd140 SMD smd 2n2907a smd bc556b 2SA1309 BC327-40 SMD

    BC5468

    Abstract: SMD MARKING CODE C1L 8C550 SMD MARKING 5c npn BC5486 bc327 smd BC547 smd C3z SMD MARKING CODE C1G BC840
    Text: SMD TransiStOfS SOT-23 Case U.S. Specification Preferred Series 350mW NEW! NEW! BVa o BVgo (VOITS) (VOLTS) (VOLTS) IcM * V c , (VOLTS) <nA) MM MM MM MAX MM MAX 30 1!i 3.0 10 15 20 75 40 6.0 10 60 100 15 4.5 400 20 40 60 6.0 10 45 250 50 100 60 30 TYPE MO.


    OCR Scan     		PDF OT-23 350mW CMPT2222A CMPT2369 CMPT2484 CMPT2907A CMPT3640 CMPT3646 GMPT3904 CMPT3906 BC5468 SMD MARKING CODE C1L 8C550 SMD MARKING 5c npn BC5486 bc327 smd BC547 smd C3z SMD MARKING CODE C1G BC840

    SMD MARKING CODE C2U

    Abstract: smd code marking C2G
    Text: SMD Transistors SOT-23 Case U.S. Specification Preferred Series 350mW TYPE NO. NEW ! NEW ! DESCRIPTION BVC*0 (VOLTS) BVcto (VOUS) w ao (VOLTS) 1 * 0 « S Ve. (VOUS) MM MM MM MAX 10 15 n FE m MM MAX 20 _ « «»V« (VOUS) le m Va< S *n < H (mA) (VOUS) MAX


    OCR Scan     		PDF OT-23 350mW CMPT918 CMPT2222A CMPT2369 CMPT2484 CMPT2907A BC857C BC858 BC858A SMD MARKING CODE C2U smd code marking C2G

    BC5578

    Abstract: npn smd bc550 smd transistor smd 1FT BC5488 smd marking code BC817 BC546 SMD bc816 SMD MARKING CODE C2U SMD MARKING CODE c1l c1g smd
    Text: SMD Transistors SOT-23 Case U.S. Specification Preferred Series 350mW NEW! NEW! NEW! NEW! NEW! NEW! NEW! NEW! NEW! NEW! NEW! TYPE NO. DESCRIPTION BVC*0 (VOUS) MM BVcto (VOLTS) MM *¥»0 (VOUS) MM 1*0 <8 Ve, (•*) (VOUS) MAX CMPT 918 CMPT2222A CMPT2369 CMPT2484


    OCR Scan     		PDF OT-23 350mW CMPT918 2N918 CMPT2222A 2N2222A CMPT2369 2N2369 CMPT2484 2N2484 BC5578 npn smd bc550 smd transistor smd 1FT BC5488 smd marking code BC817 BC546 SMD bc816 SMD MARKING CODE C2U SMD MARKING CODE c1l c1g smd

    2d SMD PNP TRANSISTOR

    Abstract: NB ad smd transistor 1ff TRANSISTOR SMD MARKING CODE SMD MARKING CODE FE sot89 H1 SOT-89 transistor rf smd transistor 5c sot-23 BC548 TRANSISTOR SMD TRANSISTOR Marking XB SOT-89 TRANSISTOR BC337 SMD smd dual diode marking code AH sot-23
    Text: CENTRAL SEMICONDUCTOR 50E D nñnb3 CEN D D D Q S l l 3Gb SMD Transistors SOT-23 Case U.S. Specification Preferred Series 350mW TYPE NO. CMPT918 CMPT2222A CMPT2369 CMPT2484 CMPT2907A CMPT3640 CMPT3904 CMPT3906 CMPT4401 CMPT4403 CMPT5086 CMPT5087 CMPT5088


    OCR Scan     		PDF DGDQS11 OT-23 350mW cmpt918 2n918 cmpt2222a 2n2222a cmpt2369 2n2369 cmpt2484 2d SMD PNP TRANSISTOR NB ad smd transistor 1ff TRANSISTOR SMD MARKING CODE SMD MARKING CODE FE sot89 H1 SOT-89 transistor rf smd transistor 5c sot-23 BC548 TRANSISTOR SMD TRANSISTOR Marking XB SOT-89 TRANSISTOR BC337 SMD smd dual diode marking code AH sot-23

    1ff TRANSISTOR SMD MARKING CODE

    Abstract: smd transistor 5c sot-23 NB ad smd transistor SMD TRANSISTOR MARKING 6C SMD TRANSISTOR MARKING 5c npn smd dual diode marking code AH sot-23 BC548 TRANSISTOR SMD smd diode ZENER marking code BC marking code diode C1J SMD SMD TRANSISTOR MARKING c1p
    Text: CENTRAL SENICONDUCTOR 50E D • DDDQS11 3Gb ■ CEN SMD Transistors SOT-23 Case U.S. Specification Preferred Series 350mW T Y P E NO. DESCRIPTION BVCBq (VOLTS) MW BV qeo (VOLTS) MIN BVebq (VOLTS) MIN Icbo 1^ V M (nA) (VOLTS) MAX MIN CMPT918 CMPT2222A CMPT2369


    OCR Scan     		PDF DDDQS11 OT-23 350mW CMPT918 CMPT2222A CMPT2369 CMPT2484 CMPT2907A CMPT3640 CMPT3904 1ff TRANSISTOR SMD MARKING CODE smd transistor 5c sot-23 NB ad smd transistor SMD TRANSISTOR MARKING 6C SMD TRANSISTOR MARKING 5c npn smd dual diode marking code AH sot-23 BC548 TRANSISTOR SMD smd diode ZENER marking code BC marking code diode C1J SMD SMD TRANSISTOR MARKING c1p

    SMD Code 12W SOT-23

    Abstract: CXT5401 BK SMD MARKING CODE 4E C2TA44 SMD MARKING CODE FE sot89 marking code C3E SOT-89 npn smd bc550 smd SMD Code 12W SOT23 marking BH SOT-223 marking da sot89
    Text: SMD Transistors SOT-23 Case U.S. Specification Preferred Series 350mW IM MW MM 30 15 30 e k « >Vcf (VOLTS) m *lFI (VOLTS) MAX 10 15 20 _ 1.0 3.0 NF Vet (SAD< »•c (VOLTS) (mA) MAX C« (pF) MAX (MHz) MM m MAX 0.4 1.7 600 6.0 10 MARKING SttVLAR CODE LEADED


    OCR Scan     		PDF OT-23 350mW CMPT2222A CMPT2369 CMPT24 CMPT2907A CMPT3640 CMPT3646 CMFT3904 CMPT3906 SMD Code 12W SOT-23 CXT5401 BK SMD MARKING CODE 4E C2TA44 SMD MARKING CODE FE sot89 marking code C3E SOT-89 npn smd bc550 smd SMD Code 12W SOT23 marking BH SOT-223 marking da sot89