KST4125 Specs and Replacement

Type Designator: KST4125

SMD Transistor Code: ZD

Material of Transistor: Si

Polarity: PNP

Absolute Maximum Ratings

Maximum Collector Power Dissipation (Pc): 0.35 W

Maximum Collector-Base Voltage |Vcb|: 30 V

Maximum Collector-Emitter Voltage |Vce|: 30 V

Maximum Emitter-Base Voltage |Veb|: 4 V

Maximum Collector Current |Ic max|: 0.2 A

Max. Operating Junction Temperature (Tj): 150 °C

Electrical Characteristics

Transition Frequency (ft): 200 MHz

Collector Capacitance (Cc): 4.5 pF

Forward Current Transfer Ratio (hFE), MIN: 50

Noise Figure, dB: -

Package: SOT-23

 KST4125 Substitution

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KST4125 datasheet

 ..1. Size:45K  fairchild semi

 kst4125.pdf pdf_icon

KST4125

KST4125 General Purpose Transistor 3 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 -30 V VCEO Collector-Emitter Voltage -30 V VEBO Emitter-Base Voltage -4 V IC Collector Current -200 mA PC Collector Power Dissipation 350 mW TSTG Storage ... See More ⇒

 8.1. Size:44K  fairchild semi

 kst4123.pdf pdf_icon

KST4125

KST4123 General Purpose Transistor 3 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 40 V VCEO Collector-Emitter Voltage 30 V VEBO Emitter-Base Voltage 5 V IC Collector Current 200 mA PC Collector Power Dissipation 350 mW TSTG Storage Temp... See More ⇒

 8.2. Size:44K  fairchild semi

 kst4124.pdf pdf_icon

KST4125

KST4124 General Purpose Transistor 3 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 30 V VCEO Collector-Emitter Voltage 25 V VEBO Emitter-Base Voltage 5 V IC Collector Current 200 mA PC Collector Power Dissipation 350 mW TSTG Storage Temp... See More ⇒

 8.3. Size:44K  fairchild semi

 kst4126.pdf pdf_icon

KST4125

KST4126 General Purpose Transistor 3 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 -25 V VCEO Collector-Emitter Voltage -25 V VEBO Emitter-Base Voltage -4 V IC Collector Current -200 mA PC Collector Power Dissipation 350 mW TSTG Storage ... See More ⇒

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Detailed specifications: KSC2784, KSC2881, KSC2883, KSC5019, KSC5042F, KSP5179, KSP94, KST3906, 2SA1943, KST5401, KST5551, MAT02, MMBT2222AK, PN2369A, MMBT2369A, MMBT2907AK, MMBT3702

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