A1941 Specs and Replacement
The A1941 is a high-power NPN bipolar junction transistor commonly used in audio power amplifiers and regulated power supplies. Built in a TO3PN package, it provides efficient heat dissipation and stable operation under high current loads. Its transition frequency supports reliable performance at audio and low-RF ranges, while the DC current gain ensures consistent amplification across varying loads. Due to its rugged structure, thermal stability, good linearity, the A1941 is widely used in complementary pairs with transistors like C5198, enabling low-distortion Class-AB amplifier designs and robust power-handling capability.
Type Designator: A1941
Material of Transistor: Si
Polarity: PNP
Absolute Maximum Ratings
Maximum Collector Power Dissipation (Pc): 100 W
Maximum Collector-Base Voltage |Vcb|: 160 V
Maximum Collector-Emitter Voltage |Vce|: 160 V
Maximum Emitter-Base Voltage |Veb|: 5 V
Maximum Collector Current |Ic max|: 10 A
Max. Operating Junction Temperature (Tj): 150 °C
Electrical Characteristics
Transition Frequency (ft): 30 MHz
Collector Capacitance (Cc): 480 pF
Forward Current Transfer Ratio (hFE), MIN: 55
Package: TO-3PN
A1941 Substitution
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A1941 datasheet
Continental Device India Limited An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company POWER TRANSISTORS A1941 (9TW) PNP C5198 (9TW) NPN TO- 3PN Non Isolated Plastic Package Power Amplifier Applications. ABSOLUTE MAXIMUM RATINGS (Ta=25 C unless specified otherwise ) VALUE DESCRIPTION SYMBOL UNIT Collector Base Voltage VCBO 160 V Collector Emitter Voltage VCEO 160 V Emitter Bas... See More ⇒
2SA1941 TOSHIBA Transistor Silicon PNP Triple Diffused Type 2SA1941 Power Amplifier Applications Unit mm High breakdown voltage VCEO = -140 V (min) Complementary to 2SC5198 Recommended for 70-W high-fidelity audio frequency amplifier output stage. Absolute Maximum Ratings (Ta = 25 C) Characteristics Symbol Rating Unit Collector-base voltage VCBO -140 V Colle... See More ⇒
2SA1941 TOSHIBA Transistor Silicon PNP Triple Diffused Type 2SA1941 Power Amplifier Applications Unit mm High breakdown voltage VCEO = -140 V (min) Complementary to 2SC5198 Recommended for 70-W high-fidelity audio frequency amplifier output stage. Absolute Maximum Ratings (Ta = 25 C) Characteristics Symbol Rating Unit Collector-base voltage VCBO -140 V Colle... See More ⇒
JMnic Product Specification Silicon PNP Power Transistors 2SA1941 DESCRIPTION With TO-3P(I) package Complement to type 2SC5198 APPLICATIONS Power amplifier applications Recommend for 70W high fidelity audio frequency amplifier output stage PINNING PIN DESCRIPTION 1 Base Collector;connected to 2 mounting base Fig.1 simplified outline (TO-3P(I)) and symbol ... See More ⇒
Detailed specifications: P2N2907A , PN100 , PN200 , 2CF2325 , SL100 , 2N23867 , 2N3055HV , 2N6371HV , 2222A , BD237S , BD675BPL , BF422BPL , BU908F , BUF508A , BUX84A , C5198 , CD13002 .
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