onsemi PN2222ARLRP

Overview

PN2222ARLRP 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 and supports switching applications with t_d ≤ 10 ns, t_r ≤ 25 ns, and t_s ≤ 225 ns.

For engineers reviewing the PN2222ARLRP datasheet, pinout, applications, or equivalent options, key selection criteria include V_CEO/V_CBO ratings, saturation voltage at defined I_C/I_B ratios, thermal resistance (R_θJA = 200°C/W), and small-signal bandwidth (f_T = 300 MHz).

Technical Context

The PN2222ARLRP operates as a medium-speed, low-power NPN bipolar junction transistor optimized for linear amplification and digital switching. Its design incorporates emitter-base breakdown voltage (V_(BR)EBO) of 6.0 V and collector cutoff current (I_CEX) ≤ 10 nA, enabling stable biasing in temperature-varying environments.

It features f_T = 300 MHz at I_C = 20 mA/V_CE = 20 V, C_ibo = 25 pF, and h_ie = 0.25–1.25 kΩ across I_C = 1–10 mA, supporting audio-frequency amplification and pulse switching up to ~100 MHz.

Key Specifications

Pinout & Package

PN2222ARLRP uses the TO-92 (Case 29, Style 1) through-hole plastic package with 3-pin vertical lead configuration. Leads are spaced 0.1" (2.54 mm) apart, body height ≤ 0.250" (6.35 mm), and total device weight ≈ 0.3 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBT2222ALT1G and PN2222AUB, PN2222ARLRP offers proven through-hole reliability, direct compatibility with breadboards and wire-wrap prototypes, and consistent thermal behavior in natural-convection environments-making it optimal for development, education, and low-volume industrial builds.

Availability

PN2222ARLRP is available at Aetrix Electronics and suitable for audio amplification, microcontroller interfacing, DC-DC converter switching, and industrial sensor conditioning requiring stable component supply and long-term manufacturability.

Supply support for PN2222ARLRP 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 focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications.

PN2222ARLRP belongs to the PN2222A family of general-purpose NPN transistors designed for cost-sensitive, high-reliability linear and switching functions across consumer, industrial, and computing systems.

FAQ

What is the maximum collector-emitter voltage rating for PN2222ARLRP?

PN2222ARLRP has a maximum collector-emitter voltage (V_CEO) rating of 40 Vdc under open-base conditions at T_A = 25°C. This rating is confirmed in the Absolute Maximum Ratings table of the official onsemi datasheet (Rev. 0, November 2000). Exceeding this voltage risks avalanche breakdown and permanent device failure.

Does PN2222ARLRP support switching applications, and what are its key timing parameters?

Yes, PN2222ARLRP supports switching applications with documented delay time (t_d) ≤ 10 ns, rise time (t_r) ≤ 25 ns, storage time (t_s) ≤ 225 ns, and fall time (t_f) ≤ 60 ns at V_CC = 30 V and I_C = 150 mA. These values are specified in the Switching Characteristics section of the onsemi datasheet and validate its use in low-to-medium frequency digital logic and power control circuits.

What is the DC current gain (h_FE) range for PN2222ARLRP at typical operating conditions?

PN2222ARLRP exhibits h_FE = 100–300 at I_C = 10 mA and V_CE = 10 V, per the Electrical Characteristics table. At lower currents (I_C = 1.0 mA), h_FE starts at ≥50, and at higher currents (I_C = 150 mA), it remains ≥30. These values are measured at T_A = 25°C and define base drive sizing for both linear and saturated operation.

Is PN2222ARLRP suitable for high-temperature environments, and what is its junction temperature limit?

Yes, PN2222ARLRP is rated for operating junction temperatures from –55°C to +150°C, as stated in the Maximum Ratings table. Its thermal resistance R_θJA = 200°C/W allows safe operation in industrial enclosures and automotive under-hood locations when power dissipation remains within derated limits above 25°C ambient.

How does the saturation voltage (V_CE(sat)) of PN2222ARLRP compare to the original PN2222?

PN2222ARLRP achieves V_CE(sat) ≤ 0.3 V at I_C = 150 mA and I_B = 15 mA, while the baseline PN2222 is rated at ≤ 0.4 V under identical conditions. This 0.1 V improvement reduces conduction losses by ~25% in switching applications, directly enhancing efficiency in low-power DC-DC stages and LED drivers using PN2222ARLRP.