onsemi PN2222ARLRPG

Overview

PN2222ARLRPG from onsemi is an NPN silicon general-purpose transistor in TO-92 package, rated for 40 V_CEO, 600 mA continuous collector current, and 625 mW power dissipation at T_A = 25°C. It delivers DC current gain (h_FE) of 100–300 at I_C = 10 mA, V_CE = 10 V, and supports switching applications with t_d ≤ 10 ns, t_r ≤ 25 ns, and V_CE(sat) = 0.3 V at I_C/I_B = 10 - widely used in low-voltage relay drivers and signal amplification stages.

For engineers reviewing the PN2222ARLRPG datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CEO = 40 V, h_FE min = 100 at 10 mA, TO-92 mechanical compatibility, thermal resistance R_θJA = 200°C/W, and switching timing performance under 30 V supply conditions.

Technical Context

The PN2222ARLRPG operates as a medium-speed, low-power NPN bipolar junction transistor optimized for linear amplification and saturated switching. Its f_T = 300 MHz enables stable small-signal gain up to ~100 MHz, while C_obo = 8.0 pF and C_ibo = 25 pF support predictable high-frequency impedance behavior.

It features guaranteed V_(BR)EBO = 6.0 V, I_CBO ≤ 0.01 µA at 50 V, and noise figure NF ≤ 4.0 dB at I_C = 100 µA - confirming suitability for low-noise preamplifier stages and precision bias networks where leakage and base-emitter integrity are critical.

Key Specifications

Pinout & Package

PN2222ARLRPG uses the industry-standard TO-92 (Case 29, Style 1) plastic package with 3-pin vertical lead configuration and JEDEC-compliant mechanical dimensions (A = 4.45–5.20 mm, B = 4.32–5.33 mm, L = 6.35 mm).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN general-purpose transistor applications.

Compared with MMBT2222ALT1G and BC547C, PN2222ARLRPG provides the highest continuous current (600 mA) and power dissipation (625 mW) among these three, making it uniquely suitable for medium-power switching where thermal margin and load headroom are critical.

Availability

PN2222ARLRPG is available at Aetrix Electronics and suitable for relay driver circuits, low-voltage LED drivers, audio preamplifiers, and logic level shifters requiring stable component supply and long-term manufacturability.

Supply support for PN2222ARLRPG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

PN2222ARLRPG belongs to onsemi's legacy general-purpose bipolar transistor product line, engineered for robustness, wide temperature operation, and consistent parametric performance in cost-sensitive discrete signal conditioning and power switching applications.

FAQ

What is the maximum collector-emitter voltage rating for PN2222ARLRPG?

The PN2222ARLRPG has a guaranteed V_CEO rating of 40 Vdc, meaning it can safely block up to 40 V between collector and emitter with base open. This rating exceeds the 30 V specification of the older PN2222 variant and aligns with its designation as a Preferred Device for new designs requiring higher voltage margin.

Does PN2222ARLRPG support high-frequency amplification?

Yes, PN2222ARLRPG has a current-gain bandwidth product (f_T) of 300 MHz, measured at I_C = 20 mA, V_CE = 20 V, and f = 100 MHz. This enables stable small-signal amplification up to approximately 100 MHz, making it suitable for RF front-end stages and broadband signal conditioning where gain flatness matters.

What is the typical DC current gain (h_FE) of PN2222ARLRPG at 10 mA collector current?

At I_C = 10 mA and V_CE = 10 V, the PN2222ARLRPG exhibits h_FE ranging from 100 to 300. This wide but well-characterized spread allows designers to size base resistors conservatively for worst-case gain while maintaining margin for production variation and temperature drift.

Can PN2222ARLRPG be used in switching applications with fast rise/fall times?

Yes - the PN2222ARLRPG is characterized for switching use with t_r ≤ 25 ns and t_f ≤ 60 ns under V_CC = 30 V, I_C = 150 mA, and I_B = 15 mA conditions. These values confirm its suitability for pulse-width modulation (PWM), digital logic interfacing, and other sub-100 ns timing-critical functions.

What package type does PN2222ARLRPG use, and how are its pins arranged?

PN2222ARLRPG uses the TO-92 (Case 29, Style 1) through-hole plastic package. Pin 1 is Emitter, Pin 2 is Base, and Pin 3 is Collector - matching the standardized marking diagram "PN222x" with orientation notch facing left when leads point downward and flat side faces viewer.