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S8550 PDF Specs and Replacement

The S8550 is a low-power PNP bipolar junction transistor commonly used in audio amplifiers, switching stages, general-purpose analog circuits. It operates with the emitter at a higher potential than the base and collector, allowing it to conduct when the base is driven low. The transistor supports a collector current up to 500mA and a collector-emitter voltage of 25V, making it suitable for medium-load switching. Its DC current gain typically ranges from 120 to 300, depending on the operating region. The S8550 offers low saturation voltage and good linearity, enabling efficient signal amplification in compact, battery-powered devices. Its TO92/SOT23 package ensures easy PCB integration and reliable thermal performance.


   Type Designator: S8550
   SMD Transistor Code: 2TY
   Material of Transistor: Si
   Polarity: PNP

Absolute Maximum Ratings


   Maximum Collector Power Dissipation (Pc): 0.3 W
   Maximum Collector-Base Voltage |Vcb|: 40 V
   Maximum Collector-Emitter Voltage |Vce|: 25 V
   Maximum Emitter-Base Voltage |Veb|: 5 V
   Maximum Collector Current |Ic max|: 0.5 A
   Max. Operating Junction Temperature (Tj): 150 °C

Electrical Characteristics


   Transition Frequency (ft): 150 MHz
   Forward Current Transfer Ratio (hFE), MIN: 120
   Noise Figure, dB: -
   Package: TO92 SOT23
 

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S8550 PDF detailed specifications

 ..1. Size:138K  utc
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S8550

UNISONIC TECHNOLOGIES CO., LTD S8550 PNP SILICON TRANSISTOR LOW VOLTAGE HIGH CURRENT SMALL SIGNAL PNP TRANSISTOR DESCRIPTION The UTC S8550 is a low voltage high current small signal PNP 1 transistor, designed for Class B push-pull audio amplifier and TO-92 general purpose applications. FEATURES * Collector current up to 700mA * Collector-Emitter voltage up to 20 V ... See More ⇒

 ..2. Size:196K  secos
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S8550

S8550 PNP Silicon Elektronische Bauelemente Plastic-Encapsulate Transistors RoHS Compliant Product A suffix of "-C" specifies halogen & lead-free FEATURES SOT-23 Dim Min Max Collector 3 A 2.800 3.040 Complimentary to S8050 B 1.200 1.400 1 Base C 0.890 1.110 2 Emitter Collector Current IC=0.5A D 0.370 0.500 G 1.780 2.040 A H 0.013 0.100 L J 0.085 0.177 3 K 0.450 0.60... See More ⇒

 ..3. Size:496K  jiangsu
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S8550

JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD TO-92 Plastic-Encapsulate Transistors TO-92 S8550 FEATURE Equivalent Circuit ... See More ⇒

 ..4. Size:978K  htsemi
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S8550

S8 550 S901 2 SOT-23 TRANSISTOR(PNP) FEATURES Complimentary to S8050 1. BASE Collector current IC=0.5A 2. EMITTER 3. COLLECTOR MARKING 2TY MAXIMUM RATINGS (TA=25 unless otherwise noted) Symbol Parameter Value Units VCBO Collector-Base Voltage -40 V VCEO Collector-Emitter Voltage -25 V VEBO Emitter-Base Voltage -5 V IC Collector Current -Continuous -0.5 A ... See More ⇒

Detailed specifications: MMBT589 , MMBTA44 , MMBTA94 , PXT3904 , PXT3906 , PXT8050 , PXT8550 , S8050 , BC337 , S9012 , S9013 , S9013W , S9014 , S9014W , S9015 , S9015W , S9018 .

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