onsemi MPS2222ARL

Overview

MPS2222ARL 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 t_s ≤ 225 ns - commonly used in low-voltage logic interface, relay drivers, and LED load switching.

For engineers reviewing the MPS2222ARL datasheet, pinout, applications, or equivalent options, key selection considerations include its 40 V_CEO rating, 600 mA I_C capability, TO-92 leaded package compatibility with through-hole assembly, and verified performance across −55°C to +150°C junction temperature range.

Technical Context

The MPS2222ARL is a discrete NPN bipolar junction transistor optimized for linear amplification and medium-speed switching. Its design emphasizes robust breakdown margins (V_CBO = 75 V, V_EBO = 6.0 V), low saturation voltage (V_CE(sat) = 0.3 V at I_C = 150 mA, I_B = 15 mA), and stable h_FE over temperature (min 50 at −55°C, min 100 at 25°C).

It features f_T = 300 MHz at I_C = 20 mA, V_CE = 20 V, enabling RF preamp and broadband small-signal use. Input capacitance (C_ibo = 25 pF) and output capacitance (C_obo = 8.0 pF) support predictable high-frequency behavior, while noise figure NF ≤ 4.0 dB at I_C = 100 μA makes it suitable for low-noise analog front ends.

Key Specifications

Pinout & Package

Package: TO-92 (Case 29−11, Style 1), through-hole, Pb-free, 3-lead plastic package with standard lead spacing and mechanical dimensions per ON Semiconductor specification.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PN2222A and MMBT2222ALT1G, the MPS2222ARL provides superior low-current h_FE consistency, higher f_T, and direct TO-92 compatibility - making it the preferred choice for new through-hole designs requiring verified 300 MHz bandwidth and stable gain down to 10 mA.

Availability

MPS2222ARL is available at Aetrix Electronics and suitable for industrial control, automotive body electronics, and consumer appliance designs requiring stable component supply, long-term manufacturability, and Pb-free compliance.

Supply support for MPS2222ARL 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 electronics, with leadership in power management, analog, sensors, and discrete devices.

The MPS2222ARL belongs to onsemi's broad portfolio of general-purpose transistors designed for reliability-critical, cost-sensitive applications across industrial, automotive, and consumer markets.

FAQ

What is the maximum operating junction temperature for the MPS2222ARL?

The MPS2222ARL has a specified operating junction temperature range of −55°C to +150°C. This wide range allows deployment in harsh environments such as automotive engine compartments or industrial motor drives without external thermal management, provided power dissipation remains within derated limits per the R_JA = 200°C/W thermal resistance.

Is the MPS2222ARL RoHS-compliant and Pb-free?

Yes, the MPS2222ARL is explicitly marked as Pb-free in the ordering information table and carries the "G" suffix designation (e.g., MPS2222ARLRPG). It meets RoHS Directive 2011/65/EU requirements and is compatible with standard lead-free soldering profiles per onsemi's Soldering and Mounting Techniques Reference Manual.

Does the MPS2222ARL have a documented h_FE minimum at low collector currents?

Yes - the MPS2222ARL guarantees h_FE ≥ 100 at I_C = 10 mA, V_CE = 10 V, and T_A = 25°C. This is confirmed in the Electrical Characteristics table and distinguishes it from earlier MPS2222 versions, supporting stable biasing in low-power amplifier and sensor interface circuits.

Can the MPS2222ARL replace the original 2N2222 in existing designs?

The MPS2222ARL is a direct functional upgrade to the 2N2222, offering higher V_CEO (40 V vs. 30 V), improved h_FE consistency, and tighter parameter distributions. Its identical TO-92 pinout (Emitter-Base-Collector on pins 1-2-3) and mechanical footprint ensure drop-in replacement without layout changes in most cases.

What is the typical storage time (t_s) of the MPS2222ARL under standard switching conditions?

The MPS2222ARL has a maximum storage time t_s of 225 ns when operated at V_CC = 30 V, I_C = 150 mA, and I_B1 = I_B2 = 15 mA (per Figure 2 and Switching Characteristics table). This value is critical for calculating minimum off-time in PWM-driven loads and confirms suitability for >1 kHz switching applications.