ST44 Specs and Replacement
Type Designator: ST44
Material of Transistor: Si
Polarity: NPN
Absolute Maximum Ratings
Maximum Collector Power Dissipation (Pc): 0.2 W
Maximum Collector-Base Voltage |Vcb|: 45 V
Maximum Collector-Emitter Voltage |Vce|: 45 V
Maximum Emitter-Base Voltage |Veb|: 2 V
Maximum Collector Current |Ic max|: 0.025 A
Max. Operating Junction Temperature (Tj): 200 °C
Electrical Characteristics
Transition Frequency (ft): 18 MHz
Collector Capacitance (Cc): 5 pF
Forward Current Transfer Ratio (hFE), MIN: 130
Noise Figure, dB: -
Package: TO5
- BJT ⓘ Cross-Reference Search
ST44 datasheet
0.1. Size:52K philips
pmst4401 3.pdf 
DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D187 PMST4401 NPN switching transistor 1999 Apr 22 Product specification Supersedes data of 1997 May 07 Philips Semiconductors Product specification NPN switching transistor PMST4401 FEATURES PINNING High current (max. 600 mA) PIN DESCRIPTION Low voltage (max. 40 V). 1 base 2 emitter APPLICATIONS 3 collector Gen... See More ⇒
0.2. Size:124K philips
pmst4401.pdf
DISCRETE SEMICONDUCTORS DATA SHEET dbook, halfpage M3D187 PMST4401 NPN switching transistor Product data sheet 1999 Apr 22 Supersedes data of 1997 May 07 NXP Semiconductors Product data sheet NPN switching transistor PMST4401 FEATURES PINNING High current (max. 600 mA) PIN DESCRIPTION Low voltage (max. 40 V). 1 base 2 emitter APPLICATIONS 3 collector General p... See More ⇒
0.3. Size:52K philips
pmst4403 3.pdf
DISCRETE SEMICONDUCTORS DATA SHEET ook, halfpage M3D187 PMST4403 PNP switching transistor 1999 Apr 22 Product specification Supersedes data of 1997 May 29 Philips Semiconductors Product specification PNP switching transistor PMST4403 FEATURES PINNING High current (max. 600 mA) PIN DESCRIPTION Low voltage (max. 40 V). 1 base 2 emitter APPLICATIONS 3 collector Swit... See More ⇒
0.4. Size:215K st
st4460fx.pdf
ST4460FX High voltage fast-switching NPN Power transistor General features High voltage and high current capability Low spread of dynamic parameters Low base-drive requirements Very high switching speed 3 High ruggedness 2 1 Fully insulated power package U.L. compliant ISOWATT218FX Applications Switch mode power supplies for CRT TV Description Intern... See More ⇒
0.5. Size:57K fairchild semi
kst4403.pdf
KST4403 3 Switching Transistor 2 SOT-23 1 1. Base 2. Emitter 3. Collector PNP Epitaxial Silicon Transistor Absolute Maximum Ratings Ta=25 C unless otherwise noted Symbol Parameter Value Units VCBO Collector-Base Voltage -40 V VCEO Collector-Emitter Voltage -40 V VEBO Emitter-Base Voltage -5 V IC Collector Current -600 mA PC Collector Power Dissipation 350 mW TSTG Storage Temper... See More ⇒
0.6. Size:55K fairchild semi
kst4401.pdf
KST4401 3 Switching Transistor 2 SOT-23 1 1. Base 2. Emitter 3. Collector NPN Epitaxial Silicon Transistor Absolute Maximum Ratings Ta=25 C unless otherwise noted Symbol Parameter Value Units VCBO Collector-Base Voltage 60 V VCEO Collector-Emitter Voltage 40 V VEBO Emitter-Base Voltage 6 V IC Collector Current 600 mA PC Collector Dissipation 350 mW TSTG Storage Temperature 150 ... See More ⇒
0.7. Size:810K nxp
pmst4403.pdf
PMST4403 40 V, 600 mA PNP switching transistor 1 August 2016 Product data sheet 1. General description PNP switching transistor in a very small SOT323 (SC-70) Surface-Mounted Device (SMD) plastic package. NPN complement PMST4401 2. Features and benefits General purpose switching transistor AEC-Q101 qualified 3. Applications Switching and linear amplification. 4. Quick r... See More ⇒
0.8. Size:331K nxp
pmst4401.pdf
Important notice Dear Customer, On 7 February 2017 the former NXP Standard Product business became a new company with the tradename Nexperia. Nexperia is an industry leading supplier of Discrete, Logic and PowerMOS semiconductors with its focus on the automotive, industrial, computing, consumer and wearable application markets In data sheets and application notes which still contain... See More ⇒
0.9. Size:91K rohm
umt4401 sst4401 mmst4401 2n4401.pdf
UMT4401 / SST4401 / MMST4401 / 2N4401 Transistors NPN Medium Power Transistor (Switching) UMT4401 / SST4401 / MMST4401 / 2N4401 External dimensions (Units mm) Features 2.0 0.2 UMT4401 1.3 0.1 0.9 0.1 1) BVCEO>40V (IC=1mA) 0.65 0.65 0.2 0.7 0.1 (1) (2) 2) Complements the UMT4403 / SST4403 / MMST4403 0 0.1 / PN4403. (3) (1) Emitter (2) Base 0.3+0.1 0.15 0.05 ROHM UM... See More ⇒
0.10. Size:1824K rohm
sst4401 umt4401u3.pdf
SST4401 / UMT4401U3 Datasheet NPN Medium Power Transistor (Switching) lOutline l Parameter Value SOT-23 SOT-323 VCEO 40V IC 600mA SST4401 UMT4401U3 (SST3) (UMT3) lFeatures l 1)BVCEO=40V(Min.) ; at IC=1mA lInner circuit l 2)Complements the SST4403/UMT4403U3. lApplication l AUDIO FREQUENCY SMALL SIGNAL AMPLIFIER lPackaging specifications l Basic Packag... See More ⇒
0.11. Size:51K rohm
umt4403 sst4403 mmst4403 2n4403.pdf
Transistors UMT4403 / SST4403 / MMST4403 / 2N4403 (SPEC-A31) 602 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon act... See More ⇒
0.12. Size:98K rohm
sst4401 mmst4401.pdf
SST4401 / MMST4401 Transistors NPN Medium Power Transistor (Switching) SST4401 / MMST4401 Features Dimensions (Unit mm) 1) BVCEO>40V (IC=1mA) SST4401 2) Complements the SST4403 / MMST4403. Package, marking, and packaging specifications (1) Emitter (2) Base Part No. SST4401 MMST4401 ROHM SST3 (3) Collector Packaging type SST3 SMT3 Marking R2X R2X MMST4401 Code T1... See More ⇒
0.13. Size:957K rohm
sst4403 mmst4403.pdf
SST4403 / MMST4403 Transistors PNP Medium Power Transistor (Switching) SST4403 / MMST4403 Features Dimensions (Unit mm) 1) BVCEO = -40V (Min.) ; at IC= -1mA SST4403 2) Complements the SST4401 / MMST4401 SOT-23 (1) Emitter Package, marking, and packaging specifications (2) Base (3) Collector ROHM SST3 Part No. SST4403 MMST4403 Packaging type SST3 SMT3 MMST4403 Mar... See More ⇒
0.14. Size:81K vishay
2n4416 2n4416a sst4416.pdf
2N4416/2N4416A/SST4416 Vishay Siliconix N-Channel JFETs PRODUCT SUMMARY Part Number VGS(off) (V) V(BR)GSS Min (V) gfs Min (mS) IDSS Min (mA) 2N4416 -v6 -30 4.5 5 2N4416A -2.5 to -6 -35 4.5 5 SST4416 -v6 -30 4.5 5 FEATURES BENEFITS APPLICATIONS D Excellent High-Frequency Gain D Wideband High Gain D High-Frequency Amplifier/Mixer 2N4416/A, Gps 13 dB (typ) @ D Very High System Sensitiv... See More ⇒
0.15. Size:51K vishay
sst441.pdf
SST441 Vishay Siliconix Monolithic N-Channel JFET Dual PRODUCT SUMMARY VGS(off) (V) V(BR)GSS Min (V) gfs Min (mS) IG Typ (pA) VGS1 VGS2 Max (mV) 1 to 6 25 4.5 1 20 FEATURES BENEFITS APPLICATIONS D Monolithic Design D Tight Differential Match vs. Current D Wideband Differential Amps D High Slew Rate D Improved Op Amp Speed, Settling Time D High-Speed, Accuracy Temp-Comp... See More ⇒
0.16. Size:135K diodes
mmst4403.pdf
MMST4403 PNP SMALL SIGNAL SURFACE MOUNT TRANSISTOR Features Epitaxial Planar Die Construction SOT-323 A Complementary NPN Type Available (MMST4401) Dim Min Max C Ultra-Small Surface Mount Package A 0.25 0.40 Lead Free/RoHS Compliant (Note 2) B C B 1.15 1.35 "Green" Device (Note 3 and 4) C 2.00 2.20 B E Mechanical Data G D 0.65 Nominal C... See More ⇒
0.17. Size:134K diodes
mmst4401.pdf
MMST4401 NPN SMALL SIGNAL SURFACE MOUNT TRANSISTOR Features Epitaxial Planar Die Construction SOT-323 A Complementary PNP Type Available (MMST4403) Dim Min Max C Ultra-Small Surface Mount Package A 0.25 0.40 Lead Free/RoHS Compliant (Note 2) B C B 1.15 1.35 "Green" Device (Note 3 and 4) C 2.00 2.20 B E Mechanical Data G D 0.65 Nominal C... See More ⇒
0.18. Size:232K mcc
mmst4403.pdf
MCC Micro Commercial Components TM 20736 Marilla Street Chatsworth MMST4403 Micro Commercial Components CA 91311 Phone (818) 701-4933 Fax (818) 701-4939 Features Halogen free available upon request by adding suffix "-HF" Power dissipation 200mW (Tamb=25 ) PNP Small Signal Collector current -0.6A Marking K3T Transistors Operating and Storage junctio... See More ⇒
0.19. Size:186K mcc
mmst4401.pdf
MCC TM Micro Commercial Components 20736 Marilla Street Chatsworth MMST4401 Micro Commercial Components CA 91311 Phone (818) 701-4933 Fax (818) 701-4939 Features Power dissipation 200mW (Tamb=25 ) NPN Small Signal Collector current 0.6A Marking K3X Transistors Operating and Storage junction temperature range -55 to + 150 Lead Free Finish/RoHS Co... See More ⇒
0.20. Size:26K calogic
sst440 sst441.pdf
N-Channel JFET Monolithic Dual LLC SST440 / SST441 FEATURES DESCRIPTION s High Gain . . . . . . . . . . . . . . . . . . . . . . . gf > 6 mS typical Calogic s SST440 Series is a high speed N-Channel G Low Leakage . . . . . . . . . . . . . . . . . . . . . . I ... See More ⇒
0.21. Size:23K calogic
sst4416.pdf
N-Channel JFETS LLC SST4416 FEATURES DESCRIPTION High Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >4.5 mS Calogic s SST4416 is an N-Channel JFET housed in a High Frequency Operation . . . . . . . . . . . . . . . . >400 MHz surface mount SOT-23 plastic package. The device is well Low Noise suited for designs that require low noise at high freq... See More ⇒
0.22. Size:762K jiangsu
mmst4401.pdf
JIANGSU CHANGJING ELECTRONICS TECHNOLOGY CO., LTD SOT-323 Plastic-Encapsulate Transistors MMST4401 TRANSISTOR (NPN) SOT 323 FEATURES Complementary to MMST4403 Small Surface Mount Package MARKING K3X MAXIMUM RATINGS (Ta=25 unless otherwise noted) 1. BASE Symbol Parameter Value Unit 2. EMITTER V Collector-Base Voltage 60 V CBO 3. COLLECTOR V Collector-Emitter Vo... See More ⇒
0.23. Size:361K htsemi
mmst4403.pdf
MMST4403 TRANSISTOR(PNP) SOT 323 FEATURES Complementary To MMST4401 Small Surface Mount Package MARKING K3T MAXIMUM RATINGS (Ta=25 unless otherwise noted) 1. BASE Symbol Parameter Value Unit 2. EMITTER V Collector-Base Voltage -40 V CBO 3. COLLECTOR V Collector-Emitter Voltage -40 V CEO V Emitter-Base Voltage -5 V EBO I Collector Current -600 mA C ... See More ⇒
0.24. Size:360K htsemi
mmst4401.pdf
MMST4401 TRANSISTOR(NPN) SOT 323 FEATURES Complementary to MMST4403 Small Surface Mount Package MARKING K3X MAXIMUM RATINGS (Ta=25 unless otherwise noted) 1. BASE Symbol Parameter Value Unit 2. EMITTER V Collector-Base Voltage 60 V CBO 3. COLLECTOR V Collector-Emitter Voltage 40 V CEO V Emitter-Base Voltage 6 V EBO I Collector Current 600 mA C PC... See More ⇒
0.25. Size:352K kexin
mmst4403.pdf
SMD Type Transistors PNP Transistors MMST4403 (KMST4403) Features Collector Current Capability IC=-0.6A Collector Emitter Voltage VCEO=-40V Complementary to MMST4401 1.Base 2.Emitter 3.Collector Absolute Maximum Ratings Ta = 25 Parameter Symbol Rating Unit Collector - Base Voltage VCBO -40 Collector - Emitter Voltage VCEO -40 V Emitter - Base Voltage V... See More ⇒
0.26. Size:396K kexin
mmst4401.pdf
SMD Type Transistors NPN Transistors MMST4401 (KMST4401) Features Small Surface Mount Package Complementary to MMST4403 1.Base 2.Emitter 3.Collector Absolute Maximum Ratings Ta = 25 Parameter Symbol Rating Unit Collector - Base Voltage VCBO 60 Collector - Emitter Voltage VCEO 40 V Emitter - Base Voltage VEBO 6 Collector Current - Continuous IC 600 mA Col... See More ⇒
0.27. Size:286K kexin
kmst4403.pdf
SMD Type Transistors PNP Transistors MMST4403 (KMST4403) Features Collector Current Capability IC=-0.6A Collector Emitter Voltage VCEO=-40V Complementary to MMST4401 1.Base 2.Emitter 3.Collector Absolute Maximum Ratings Ta = 25 Parameter Symbol Rating Unit Collector - Base Voltage VCBO -40 Collector - Emitter Voltage VCEO -40 V Emitter - Base Voltage V... See More ⇒
0.28. Size:279K kexin
kmst4401.pdf
SMD Type Transistors NPN Transistors MMST4401 (KMST4401) Features Small Surface Mount Package Complementary to MMST4403 1.Base 2.Emitter 3.Collector Absolute Maximum Ratings Ta = 25 Parameter Symbol Rating Unit Collector - Base Voltage VCBO 60 Collector - Emitter Voltage VCEO 40 V Emitter - Base Voltage VEBO 6 Collector Current - Continuous IC 600 mA Col... See More ⇒
0.29. Size:860K jestek
jst4406.pdf
JST4406 30V N-Channel Mosfet SOP-8 FEATURES RDS(ON) 12m @VGS=10V RDS(ON) 15m @VGS=4.5V APPLICATIONS UPS DC-DC Power Converter MARKING N-CHANNEL MOSFET Maximum ratings (TC=25 unless otherwise noted) Symbol Param Max. Units bol V Drain-Source Voltage 30 V DSS V Gate-Source Voltage 20 V GSS T = 25 13 C I Continuous Drain Current A D T = 100 8 C ... See More ⇒
0.30. Size:5646K jestek
jst4435.pdf
JST4435 -30V P-Channel Mosfet SOP-8 FEATURES RDS(ON) 23m @VGS=-10V RDS(ON) 34m @VGS=-4.5V APPLICATIONS Load Switch Power Management MARKING P-CHANNEL MOSFET YYMM Date Code(year&month) Absolute Maximum Ratings (T =25 unless otherwise specified) C Symbol Param Max. Units bol V Drain-Source Voltage -30 V DSS V Gate-Source Voltage 20 V GSS T = 25 -10 A C I... See More ⇒
0.31. Size:291K cn yangzhou yangjie elec
mmst4403.pdf
RoHS RoHS COMPLIANT COMPLIANT MMST4403 PNP General Purpose Amplifier Features Epoxy meets UL-94 V-0 flammability rating Moisture Sensitivity Level 1 Marking K3T Maximum Ratings (Ta=25 unless otherwise noted) Item Symbol Unit Conditions Value Collector-Base Voltage VCBO V -40 Collector-Emitter Voltage VCEO V -40 Emitter-Base Voltage VEBO V -5 Collec... See More ⇒
0.32. Size:300K cn yangzhou yangjie elec
mmst4401.pdf
RoHS RoHS COMPLIANT COMPLIANT MMST4401 NPN General Purpose Amplifier Features Epoxy meets UL-94 V-0 flammability rating Moisture Sensitivity Level 1 Marking K3X Maximum Ratings (Ta=25 unless otherwise noted) Item Symbol Unit Conditions Value Collector-Base Voltage VCBO V 60 Collector-Emitter Voltage VCEO V 40 Emitter-Base Voltage VEBO V 6 Collec... See More ⇒
Detailed specifications: ST411, ST414, ST4150, ST42, ST4201, ST4202, ST4203, ST4204, BD135, ST502, ST54, ST57, ST5771-1, ST5771-2, ST6008, ST6010, ST61
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