2N2222AUB - Surface Mount NPN General Purpose Transistor - Electrical Specifications

Nov 1, 2026

2N2222AUB is a miniature, hermetically sealed ceramic NPN surface-mount general purpose transistor in a 3-pin UBN package. It supports military-reliability switching and amplification by upgrading circuits from plastic SOT-23 devices. The document provides applications, pinout, MIL-PRF-19500/255 screening reference, and detailed electrical data including absolute maximum ratings, breakdown voltages, gain (hFE), saturation voltages, small-signal parameters, capacitances, and switching times.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages3

Reading Time8 min

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Electrical Specifications

Absolute Maximum Ratings

Electrical Characteristics

Notes and Test Conditions

Surface Mount NPN General Purpose Transistor 2N2222AUB Features: • Ceramic 3 pin surface mount package (UBN) • Miniature package to minimize circuit board area • Hermetically sealed • Processed per MIL-PRF-19500/255 • Same footprint and pin-out as many SOT-23 package transistors Description: The 2N2222AUB is a miniature hermetically sealed ceramic surface mount general purpose switching transistor. The miniature three pin ceramic package is ideal for upgrading commercial grade circuits to military reliability levels where plastic SOT-23 devices have been used. The “UB” suffix denotes the 3 terminal chip carrier package. Typical screening per MIL-PRF-19500/255 . Refer to MIL-PRF-19500/255 for complete requirements. Applications: • General switching • Amplification • Signal processing • Radio transmission • Logic gates | Pin | Function | | --- | --- | | 1 | Base | | 2 | Emitter | | 3 | Collector | General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. © TT electronics plc TT Electronics | OPTEK Technology 2900 E. Plano Pkwy, Plano, TX 75074 | Ph: +1 972 323 2200 [www.ttelectronics.com | sensors@ttelectronics.com](www.ttelectronics.com | sensors@ttelectronics.com)[ ](www.ttelectronics.com | sensors@ttelectronics.com)Rev D 08/2025 Page 1 Surface Mount NPN General Purpose Transistor 2N2222AUB Electrical Specifications Absolute Maximum Ratings (TA = 25° C unless otherwise noted) | Collector-Base Voltage | 75 V | | --- | --- | | Collector-Emitter Voltage | 50 V | | Emitter-Base Voltage | 6.0 V | | Collector Current-Continuous | 800 mA | | Operating Junction Temperature (TJ) | -65° C to +200° C | | Storage Junction Temperature (Tstg) | -65° C to +200° C | | Power Dissipation @ TA = 25° C | 0.3 W | | Power Dissipation @ TC = 25° C (1) | 1.00 W | | Soldering Temperature (vapor phase reflow for 30 seconds) | 215° C | | Soldering Temperature (heated collet for 5 seconds) | 260° C | Electrical Characteristics (TA = 25° C unless otherwise noted) | SYMBOL | PARAMETER | MIN | MAX | UNITS | TEST CONDITIONS | | --- | --- | --- | --- | --- | --- | | OFF CHARACTERISTICS | | | | | | | V(BR)CBO | Collector-Base Breakdown Voltage | 75 | - | V | IC = 10 µA, IE = 0 | | V(BR)CEO | Collector-Emitter Breakdown Voltage | 50 | - | V | IC = 10 mA, IB = 0 | | V(BR)EBO | Emitter-Base Breakdown Voltage | 6.0 | - | V | IE = 10 µA, IC = 0 | | ICBO | Collector-Base Cutoff Current | - | 10 | nA | VCB = 60 V, IE = 0 | | | | - | 10 | µA | VCB = 60 V, IE = 0, TA = 150° C | | IEBO | Emitter-Base Cutoff Current | - | 10 | nA | VEB = 4 V, IC = 0 | | ICES | Collector Emitter Cutoff Current | - | 50 | nA | VCE = 50 V | | ON CHARACTERISTICS | | | | | | | hFE | Forward-Current Transfer Ratio | 50 | - | - | VCE = 10 V, IC = 0.1 mA | | | | 75 | 325 | - | VCE = 10 V, IC = 1.0 mA | | | | 100 | - | - | VCE = 10 V, IC = 10 mA | | | | 100 | 300 | - | VCE = 10 V, IC = 150 mA(2) | | | | 30 | - | - | VCE = 10 V, IC = 500 mA(2) | | | | 35 | - | - | VCE = 10 V, IC = 10 mA, TA = -55° C | Note: 1. Derate linearly 6.6 mW/° C above 25° C 2. Pulse Width ≤300 µs, Duty Cycle ≤ 2.0 % General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. © TT electronics plc TT Electronics | OPTEK Technology 2900 E. Plano Pkwy, Plano, TX 75074 | Ph: +1 972 323 2200 [www.ttelectronics.com | sensors@ttelectronics.com](www.ttelectronics.com | sensors@ttelectronics.com)[ ](www.ttelectronics.com | sensors@ttelectronics.com)Rev D 08/2025 Page 2 Surface Mount NPN General Purpose Transistor 2N2222AUB Electrical Specifications Electrical Characteristics (TA = 25° C unless otherwise

FAQs

What package and features define the 2N2222AUB transistor?

It uses a ceramic 3-pin surface mount package (UBN), is hermetically sealed, and is processed per MIL-PRF-19500/255.

What is the pinout for the 2N2222AUB?

Pin 1 is Base, pin 2 is Emitter, and pin 3 is Collector.

What are key electrical limits and operating temperature ranges?

Collector-emitter voltage is listed as 50 V max, with junction temperature from -65° C to +200° C, and specified power dissipation limits at TA and TC.

Nov 1, 2026

Uploaded by Maya Linwood