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

    BT2907A Search Results

    SF Impression Pixel

    BT2907A Price and Stock

    onsemi MMBT2907AM3T5G

    TRANS PNP 60V 0.6A SOT723
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MMBT2907AM3T5G Reel 24,000 8,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.02895
    Buy Now
    Mouser Electronics MMBT2907AM3T5G 41,957
    • 1 $0.13
    • 10 $0.089
    • 100 $0.039
    • 1000 $0.032
    • 10000 $0.023
    Buy Now
    Newark MMBT2907AM3T5G Cut Tape 7,655 5
    • 1 $0.118
    • 10 $0.085
    • 100 $0.057
    • 1000 $0.04
    • 10000 $0.04
    Buy Now
    Avnet Asia MMBT2907AM3T5G 11 Weeks 40,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    Avnet Silica MMBT2907AM3T5G 12 Weeks 8,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    Chip1Stop MMBT2907AM3T5G Cut Tape 3,230
    • 1 -
    • 10 -
    • 100 $0.0358
    • 1000 $0.0205
    • 10000 $0.0181
    Buy Now
    EBV Elektronik MMBT2907AM3T5G 13 Weeks 8,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now

    PanJit Group MMBT2907A_R1_00001

    SOT-23, TRANSISTOR
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MMBT2907A_R1_00001 Reel 15,000 3,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.02472
    Buy Now
    MMBT2907A_R1_00001 Cut Tape 10,862 1
    • 1 $0.1
    • 10 $0.065
    • 100 $0.1
    • 1000 $0.0295
    • 10000 $0.0295
    Buy Now
    Chip1Stop MMBT2907A_R1_00001 Cut Tape 3,000
    • 1 -
    • 10 -
    • 100 $0.0413
    • 1000 $0.0264
    • 10000 $0.0225
    Buy Now

    Nexperia PMBT2907A,235

    TRANS PNP 60V 0.6A TO236AB
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PMBT2907A,235 Cut Tape 10,374 1
    • 1 $0.1
    • 10 $0.055
    • 100 $0.1
    • 1000 $0.0247
    • 10000 $0.01905
    Buy Now
    Mouser Electronics PMBT2907A,235 23,607
    • 1 $0.1
    • 10 $0.055
    • 100 $0.028
    • 1000 $0.019
    • 10000 $0.013
    Buy Now
    Rochester Electronics PMBT2907A,235 2,765,000 1
    • 1 $0.0219
    • 10 $0.0219
    • 100 $0.0206
    • 1000 $0.0186
    • 10000 $0.0186
    Buy Now
    TTI PMBT2907A,235 Reel 390,000 10,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.0103
    Buy Now
    Avnet Silica PMBT2907A,235 8 Weeks 10,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    EBV Elektronik PMBT2907A,235 30,000 8 Weeks 10,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    New Advantage Corporation PMBT2907A,235 20,000 1
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now

    onsemi SMMBT2907ALT3G

    TRANS PNP 60V 0.6A SOT23-3
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SMMBT2907ALT3G Reel 10,000 10,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.03436
    Buy Now
    Avnet Americas SMMBT2907ALT3G Ammo Pack 31 Weeks, 3 Days 1
    • 1 $0.21
    • 10 $0.21
    • 100 $0.078
    • 1000 $0.059
    • 10000 $0.059
    Buy Now
    Mouser Electronics SMMBT2907ALT3G 113,255
    • 1 $0.15
    • 10 $0.084
    • 100 $0.054
    • 1000 $0.044
    • 10000 $0.034
    Buy Now
    Newark SMMBT2907ALT3G Cut Tape 6,667 1
    • 1 $0.024
    • 10 $0.024
    • 100 $0.024
    • 1000 $0.024
    • 10000 $0.024
    Buy Now
    Rochester Electronics SMMBT2907ALT3G 12,800 1
    • 1 $0.0281
    • 10 $0.0281
    • 100 $0.0264
    • 1000 $0.0239
    • 10000 $0.0239
    Buy Now
    Avnet Silica SMMBT2907ALT3G 13 Weeks 10,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    Chip1Stop SMMBT2907ALT3G Cut Tape 9,900
    • 1 -
    • 10 -
    • 100 $0.0228
    • 1000 $0.0226
    • 10000 $0.0225
    Buy Now
    EBV Elektronik SMMBT2907ALT3G 10,000 14 Weeks 10,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    Flip Electronics SMMBT2907ALT3G 1,578,020
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    Master Electronics SMMBT2907ALT3G 70,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.0277
    Buy Now
    New Advantage Corporation SMMBT2907ALT3G 40,000 1
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.0336
    Buy Now

    onsemi NSVMMBT2907AM3T5G

    TRANS PNP 60V 0.6A SOT723
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey NSVMMBT2907AM3T5G Cut Tape 7,250 1
    • 1 $0.25
    • 10 $0.166
    • 100 $0.25
    • 1000 $0.0769
    • 10000 $0.06946
    Buy Now
    NSVMMBT2907AM3T5G Digi-Reel 7,250 1
    • 1 $0.25
    • 10 $0.166
    • 100 $0.25
    • 1000 $0.0769
    • 10000 $0.06946
    Buy Now
    Mouser Electronics NSVMMBT2907AM3T5G 11,492
    • 1 $0.25
    • 10 $0.166
    • 100 $0.086
    • 1000 $0.068
    • 10000 $0.062
    Buy Now
    Newark NSVMMBT2907AM3T5G Cut Tape 4,900 5
    • 1 $0.415
    • 10 $0.256
    • 100 $0.112
    • 1000 $0.08
    • 10000 $0.08
    Buy Now
    Avnet Silica NSVMMBT2907AM3T5G 72,000 13 Weeks 8,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    EBV Elektronik NSVMMBT2907AM3T5G 14 Weeks 8,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    Flip Electronics NSVMMBT2907AM3T5G 7,990
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    New Advantage Corporation NSVMMBT2907AM3T5G 80,000 1
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.078
    Buy Now

    BT2907A Datasheets (3)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    BT2907A Unknown Shortform Transistor PDF Datasheet Short Form PDF
    BT2907A Raytheon Selection Guide 1977 Scan PDF
    BT2907AT Unknown Shortform Transistor PDF Datasheet Short Form PDF

    BT2907A Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    2SC9014

    Abstract: BEC npn 2SC9013 SOT-23 BTA43 BTA70 BA811 2SC1623L6 BT3904 BTA42 BT5551
    Text: SOT-23 SMD Products Photograph of Products: Performance and Characteristics: NPN Silicon General Purpose Power Transistors Type Ptot Ic VCEO mW (mA) (V) hFE Polar 123 Type Ptot Ic VCEO (mW) (mA) (V) hFE Polar 123 2SC1623L3 225 100 40 60~90 BEC BCW60A 225


    Original
    PDF OT-23 2SC1623L3 BCW60A 2SC1623L4 BCW60B 2SC1623L5 BCW60C 2SC1623L6 BCW60D 2SC1623L7 2SC9014 BEC npn 2SC9013 SOT-23 BTA43 BTA70 BA811 2SC1623L6 BT3904 BTA42 BT5551

    BT2907A

    Abstract: No abstract text available
    Text: MOTOROLA SEMICONDUCTOR TECHNICAL DATA Preliminary Inform ation General Purpose Transistor M M BT2907A W T1 PNP Silicon Motorola Preferred Device These transistors are designed for general purpose amplifier applications. They are housed in the SOT-323/SC-7Û package


    OCR Scan
    PDF OT-323/SC-7Û BT2907A

    BC337 BC547

    Abstract: BC182 BC547 BC547 surface mount T0-92 BT2907A TN2905A BC237 2n5962
    Text: bSD113Q DDa^Sl? 372 * N S C 5 m Devices Volts Min •c Min Max 2N4032 1000 100 2N6554 1500 80 SEniCOND PNP NF (dB) Max Package I’ d (A n ti» (mW) @25°C mA (MHz) Min mA 300 100 150 50 TO-39 800 300 50 75 50 T0-202(55) 1333 M M BT2907A 600 100 300 150


    OCR Scan
    PDF bSD113Q 2N4032 2N6554 BT2907A PN2907A PN3645 PN4249 PN4250A PN4355 TN2905A BC337 BC547 BC182 BC547 BC547 surface mount T0-92 TN2905A BC237 2n5962

    BT2907

    Abstract: No abstract text available
    Text: CMBT2907 BT2907A SILICON PLANAR EPITAXIAL TRANSISTORS P -N -P silicon transistors PACKAGE OUTLINE DETAILS ALL DIMENSIONS IN mm M ark in g CM BT2907 = 2B CM BT2907A = 2F 0.14 Pin configuration 1 = BASE 2 = EMITTER 3 = COLLECTOR A B SO L U T E M A X IM U M R A T IN G S


    OCR Scan
    PDF CMBT2907 CMBT2907A BT2907 BT2907A 150mA; BT2907

    MLL34

    Abstract: m6 sot-23 pinout sot-23 Marking KN bk sot 23 marking 16 SOT-143 MOTOROLA Cross Reference sot23 MMBT8599 motorola transistor dpak marking BC817-25L BC817-40L
    Text: HOTOROLA SC XSTRS/R F HbZ D • b3b?2S4 DDTbSGl 3 ■ M O T b T ^ X l-O S Bipolar Transistors General-Purpose Transistors Pinout: 1-Base, 2-Em itter, 3-Collector Devices are listed in order of descending breakdown voltage. Marking V(BR)CEO Min ■»FE Max


    OCR Scan
    PDF BC846AT BC846BT BC817-16L BC817-25L BC817-40L BC847AT BC847BT BC847CT BCX70KL BCW72L MLL34 m6 sot-23 pinout sot-23 Marking KN bk sot 23 marking 16 SOT-143 MOTOROLA Cross Reference sot23 MMBT8599 motorola transistor dpak marking

    MMBT2907 2F

    Abstract: No abstract text available
    Text: M OTO RO LA SEMICONDUCTOR TECHNICAL DATA General Purpose Transistors PNP Silicon M M B T2 9 0 7 LT1 M M B T 2 9 0 7 A L T 1* C0LLE CT0R 3 'M o to ro la Preferred D evice MAXIM UM RATINGS Rating Symbol 2907 2907A Unit C ollector-E m itter Voltage v CEO -4 0


    OCR Scan
    PDF OT-23 O-236AB) MMBT2907 2F

    MMBT2907L

    Abstract: BT2907AL
    Text: XSTRS/R F MOTOROLA SC | fc,3t>72S4 □QflS'JTM 2 1EE T-J17-^ M A X I M U M R A T IN G S S ym bol MPS2907L MPS2907AL U n it C o lle ctor-E m itter Voltage VCEO 40 60 Vdc C ollector-Base V o lta g e VCBO Em itter-Base Voltage Vebo 5.0 Vdc *C 600 m A dc Rating


    OCR Scan
    PDF MPS2907L MPS2907AL T-J17-^ MMBT2907L, OT-23 O-236AB) MMBT2907L BT2907AL

    transistors BC 557C

    Abstract: BF366 SMD code 307C F199 transistor 2N5793 BC413 motorola ZENER diode marking code z7 equivalent of transistor bc212 bc 214 bc107c motorola 2n555
    Text: S e le c to r G u id e s 1 M e ta l-C a n T ra n s is to rs 3 F ie ld -E ffe c t T ra n s is to rs 4 S m a ll-S ig n a l T u n in g , S w itc h in g and Z e n e r D io d e s 5 T a p e a n d R eel S p e c ific a tio n s P a ck ag e O u tlin e D im e n s io n s and


    OCR Scan
    PDF

    Untitled

    Abstract: No abstract text available
    Text: About Lab Kits General: Engineers and designers find Lab Kits convenient and economical. Each Lab Kit contains a broad range of the most popular components. Assembly: Lab Kits are available on tape and reel for automated assembly on pick-andplace m achines or in bulk bags and


    OCR Scan
    PDF SM5819 40Vtms BT2222A BT2907A BT3904 BT3906

    Untitled

    Abstract: No abstract text available
    Text: GENERAL PURPOSE SMD PNP TRANSISTORS DESCRIPTION • Philips Components general purpose transistors combine the highest quality standards with state-of-the-art production equipment to fulfill the need for generic, low-cost devices. These transistors provide a broad selection


    OCR Scan
    PDF OT-89 OT-223 T-223 OT-23 OT-23 OT-143 OT-89

    BT4403

    Abstract: MBT3906
    Text: Surface Mount Transistors NFN Transistors/SOT23 M a rk in g C ode* V CEO 1P 1N 2X 40 40 40 M M B TA 05 M M B TA 06 M M B T5551 1H 1G 3S M M B T A 42 1D Type N um ber M M BT2222A IM B T /M M B T 3 9 0 4 M M B T4401 h FE @ VCE/IC V CE SAT @ Ic /lß fT @ V ce/I c


    OCR Scan
    PDF Transistors/SOT23 BT2222A T4401 T5551 Amplifiers/SOT23 1SI95 BT4403 MBT3906

    L7E transistor

    Abstract: PMBT2907A PMBT2907 1N916
    Text: • 1^53^31 002SÖS7 bD5 H A P X N AUER PHILIPS/DISCRETE PMBT2907 BT2907A L.7E D SILICON PLANAR EPITAXIAL TRANSISTORS P-N-P silicon transistors, in a microminiature plastic envelope, intended for medium power switching and general purpose amplifier applications in thick and thin-film circuits.


    OCR Scan
    PDF PMBT2907 PMBT2907A PMBT2907 bbS3T31 PMBT2907A 1N916 L7E transistor 1N916

    Untitled

    Abstract: No abstract text available
    Text: MOTOROLA SEMICONDUCTOR TECHNICAL DATA General Purpose T ransistors MMBT2907LT1 BT2907ALT1* PNP Silicon ‘Motorola Preferred Device MAXIMUM RATINGS Symbol 2907 2907A Unit Collector- Emitter Voltage VCEO -40 -60 Vdc Collector-Base Voltage v CBO Emitter-Base Voltage


    OCR Scan
    PDF MMBT2907LT1 MMBT2907ALT1* T2907LT1 BT2907ALT1

    sbr830

    Abstract: 1l431
    Text: Index HER301 thru HER306 . 21 HER601 thru HER604 . 21 IM B D IMBD4448 . 5 IMBT3904. 15


    OCR Scan
    PDF HER301 HER306 HER601 HER604 IMBD4448 IMBT3904. IMBT3906. ITTA56I. KBJ4005G thruKBJ410G. sbr830 1l431

    BTA05

    Abstract: bt2907a SL493
    Text: INDEX PART NO. PAGE PART NO. PAGE PART NO. PAGE PART NO. PAGE 1 N 4 Q 0 1 . 17 1 N 5 2 2 6 B . 3 7 1 N 9 6 5 B .3 6 1 N 4 0 0 1 G P .3 4


    OCR Scan
    PDF

    ph 4148

    Abstract: f494 ph+4148+zener+diode PXTA14 BC546 SMD SMD BC547 BC327/BC517 BC327-40 SMD BST74 BFG 71
    Text: Philips Semiconductors Surface Mounted Semiconductors Conversion List CONVERSION LIST FROM LEADED TO SMD TYPE LEADED SMD LEADED SMD B A 2 43 BA T18 BA W 62 BAW 56 B A 3 14 B A S 17 BA W 62 BAW 56W B A 4 80 BA T17 B A X 12 BAS29 BA481 BA T17 B A X 12 BA S31


    OCR Scan
    PDF BAS29 BA481 BBY31 BAT81 BAS81 BBY40 BC847 BAT54 BC847A BT2907 ph 4148 f494 ph+4148+zener+diode PXTA14 BC546 SMD SMD BC547 BC327/BC517 BC327-40 SMD BST74 BFG 71

    EQUIVALENT TRANSISTOR bc109c

    Abstract: equivalent transistor 2N1711 Transistor BC107 motorola bc109 Transistor Equivalent list EQUIVALENT TRANSISTOR bc108 Transistor BC107b motorola TRANSISTOR pnp BC140 TRANSISTOR BC140 BC140 equivalent transistor bc107b equivalent
    Text: Discrete Devices Transistors Cont. Low Level Amplifiers Maximum Ratings Type Polarity Pd Ambient mW Electrical Characteristics @ 25° C VCB VCE V e b Volts Volts Volts HpE *C Min/Max mA V c E (S a t) @ Ic/lß Volts mA/mA ft MHz Min NF@f Cob pF Max dB


    OCR Scan
    PDF 2N327A 2N327B 2N328A 2N328B 2N329A 2N329B 2N760 2N760A BT2946 2N2946 EQUIVALENT TRANSISTOR bc109c equivalent transistor 2N1711 Transistor BC107 motorola bc109 Transistor Equivalent list EQUIVALENT TRANSISTOR bc108 Transistor BC107b motorola TRANSISTOR pnp BC140 TRANSISTOR BC140 BC140 equivalent transistor bc107b equivalent

    2n3219

    Abstract: 2N4260 RAYTHEON 2N3635 2N2004 2N2708 2N3910 2N3960 2N4261 2N915 2N2333
    Text: Discrete Devices Transistors Cont. Choppers M axim um Ratings Polarity PD Ambient h f e @ >c VCE V e B Volts Volts Min/Max m A II Type Electrical Characteristics @ 25° C V c E (S a t) @ Volts m A/m A mV — 2.0 rd@lB mA Ohms Cob mA Package pF M ax 2N 943


    OCR Scan
    PDF 2N943 T0-18 2N2004 2N2333 2N2944 2N2945 2N2945A 2N2946 2N2946A BT2946 2n3219 2N4260 RAYTHEON 2N3635 2N2708 2N3910 2N3960 2N4261 2N915

    C549B

    Abstract: C556A POWER MOSFET DATA BOOK GFB50N03 GUR460 List of rectifier MOSFET BC337 1N414* zener MOSFET BOOK k mbrf10
    Text: ALPHANUMERICAL LIST OF ALL GENERAL SEMICONDUCTOR TYPES Note: Listed below are General Semiconductor’s part numbers, along with the Data Book in which they appear. For MOSFET page references, see the MOSFET Device Index on pages 5 in this book. 1 5KA6.8 thru 1.5KA43A .Zener/TVS


    OCR Scan
    PDF 5KA43A 5KE440CA 1N746 1N759 1N957 UF4001 UF4007 UF5400 UF5408 UG06A C549B C556A POWER MOSFET DATA BOOK GFB50N03 GUR460 List of rectifier MOSFET BC337 1N414* zener MOSFET BOOK k mbrf10

    BT2907A

    Abstract: 5383 sc 3357 MMBT2907A MMPQ2907 NMT2907 PN2907A PZT2907A SOIC-16 mark 2F
    Text: S E M IC O N D U C T O R tm BT2907A PZT2907A SOT-23 B / MMPQ2907 / NMT2907 / PZT2907A 'Æ SOT-223 Mark: 2F MMPQ2907 NMT2907 PNP General Purpose Amplifier This device is designed for use as a general purpose amplifier an d switch requiring collector currents to 5 0 0 mA. S ou rced


    OCR Scan
    PDF PN2907A BT2907A PZT2907A OT-23 OT-223 MMPQ2907 NMT2907 SOIC-16 3T-23 5383 sc 3357 MMBT2907A NMT2907 PN2907A PZT2907A mark 2F

    2Sc945 equivalent

    Abstract: 2SA733 equivalent 2SA733B 2sc1623 equivalent 2SC2002 equivalent 2SC1216 2SA603 2SK104 2SC923 2sc2001 equivalent
    Text: 10. Specifications of MINI M O L D Device Typ« Number Regular /Reversal 2SA811 2SA812/2SA812R PNP Tran­ sistor NPN Tranlilto r Nearest Equivalent* ' M M BA811.M M BA812 | BCW29.SCW 30,BCW 69,8CW 70,MMBTA70 TO-92 Packaged Equivalent Page 2SA641 21 2SA733.BC556.BC5571BC558,BC559,BC560


    OCR Scan
    PDF 2SA811 2SA812/2SA812R 2SB624/2SB624R 2S8736/2S8736R 907A/NTM 2907AR TM3906/NTM3906R BA811 BA812 2SA641 2Sc945 equivalent 2SA733 equivalent 2SA733B 2sc1623 equivalent 2SC2002 equivalent 2SC1216 2SA603 2SK104 2SC923 2sc2001 equivalent

    marking code p07 sot89

    Abstract: marking code 3Fp P1M marking code sot 223 PDTC* MARKING CODE p04 sot223 FtZ MARKING CODE T07 marking P2F SOT23 marking t04 sot23 marking code P1F
    Text: MARKING CODES Page T y p e n u m b e r to m arking c o d e c ro s s re fe re n ce 68 M ark in g co d e to type n u m b er c ro s s re fe re n ce 74 Philips Semiconductors Small-signal Transistors Marking codes TYPE NUMBER TO MARKING CODE TYPE NUMBER I MARKING


    OCR Scan
    PDF 2PA1576Q 2PA1576R 2PA1576S 2PA17 2PA1774R 2PA1774S 2PB709AQ 2PB709AR 2PB709AS 2PB710AQ marking code p07 sot89 marking code 3Fp P1M marking code sot 223 PDTC* MARKING CODE p04 sot223 FtZ MARKING CODE T07 marking P2F SOT23 marking t04 sot23 marking code P1F

    BSR12

    Abstract: PXTA14 ul sot-23 PMBT6427
    Text: 97 Surface M ount Devices Switching Transistors cont. Ul LL Ratings Type Package v CEO v CBO V V min./max. at Iq /V c E *C mA m A /V v CE(sat) t (max) max. at lc /lB on/off at Iç /lg V mA/mA ns mA/mA Pinout See Section VII PNP PMBT3640 BSR12 BSR18 BSR18A


    OCR Scan
    PDF PMBT3640 BSR12 BSR18 BSR18A PMBT4403 PXT4403 BSR15 PMBT2907 BSR16 BT2907A PXTA14 ul sot-23 PMBT6427

    Untitled

    Abstract: No abstract text available
    Text: r r u n _ LTC1538-AUX/LTC1539 m TECHNOLOGY Dual High E fficiency, Low Noise, Synchronous Step- D ow n S w itching Regulators FEAHJRES DESCRIPllOn • Maintains Constant Frequency at Low Output Currents ■ Dual N-Channel MOSFET Synchronous Drive ■ Programmable Fixed Frequency PLL Lockable


    OCR Scan
    PDF LTC1538-AUX/LTC1539 LTC1439/LTC1438X LT1510