onsemi MPS2369A

Overview

MPS2369A from onsemi is an NPN silicon switching transistor rated for 40 V_CEO, 200 mA continuous collector current, and 625 mW power dissipation at 25°C, with DC current gain (h_FE) of 40–120 at I_C = 10 mA and V_CE = 1.0 V, used in low-power digital switching and signal amplification circuits.

For engineers reviewing the MPS2369A datasheet, pinout, applications, or equivalent options, key selection considerations include its TO-92 package, V_CEO = 15 V (min), V_CES = 40 V, V_CE(sat) ≤ 0.25 V at I_C = 10 mA/I_B = 1 mA, and switching times (t_on/t_off/t_s) under 18 ns - critical for high-speed logic interface and pulse generation designs.

Technical Context

The MPS2369A operates as a general-purpose NPN bipolar junction transistor optimized for fast-switching applications, featuring low saturation voltage and sub-20 ns turn-off time. Its thermal resistance (R_JA = 200 °C/W) and junction temperature range (–55 to +150 °C) support reliable operation in ambient-constrained industrial and consumer environments.

Electrical behavior is defined by strict breakdown limits: V_(BR)CEO ≥ 15 V (I_C = 10 mA), V_(BR)CES ≥ 40 V (I_C = 10 µA), and V_(BR)EBO ≥ 4.5 V (I_E = 10 A), ensuring robustness against transient overvoltage and reverse-bias stress in discrete driver stages.

Key Specifications

Pinout & Package

Package: TO-92 (Case 29–11, TO-226AA), through-hole, 3-lead plastic package with standard lead configuration and 2.54 mm lead pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN switching transistor applications.

Compared with BC547B and 2N3904, the MPS2369A delivers superior switching speed and lower saturation voltage in the same TO-92 footprint, making it preferred for high-frequency digital interfaces and low-loss switching where timing fidelity and efficiency are critical.

Availability

MPS2369A is available at Aetrix Electronics and suitable for LED driver circuits, digital logic level shifting, relay coil driving, and pulse generator stages requiring stable component supply and consistent parametric performance across production batches.

Supply support for MPS2369A 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, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The MPS2369A belongs to onsemi's legacy general-purpose bipolar transistor product line, designed specifically for cost-sensitive, high-reliability discrete switching applications in industrial controls, instrumentation, and embedded system interfaces.

FAQ

What is the maximum collector-emitter voltage rating for the MPS2369A?

The MPS2369A has a minimum V_(BR)CEO of 15 V at I_C = 10 mA and V_(BR)CES of 40 V at I_C = 10 µA. The 15 V rating applies to standard open-base switching configurations, while the 40 V CES rating allows safe operation with inductive loads that generate voltage spikes. Designers must respect the 15 V limit for continuous DC operation unless using external clamping.

Is the MPS2369A suitable for high-speed switching applications?

Yes - the MPS2369A delivers t_on ≤ 12 ns, t_off ≤ 18 ns, and t_s ≤ 13 ns under standard test conditions, making it appropriate for digital logic interfacing, pulse generation, and clock distribution up to ~25 MHz. Its low C_obo (≤ 4.0 pF) and fast minority-carrier response support clean edge fidelity without added snubbing.

What package type does the MPS2369A use, and are there lead-free options?

The MPS2369A uses the TO-92 (Case 29–11, TO-226AA) through-hole package with standard E-B-C pinout (Emitter=Pin 1, Base=Pin 2, Collector=Pin 3). onsemi offers both leaded and RoHS-compliant lead-free versions; the MPS2369A ordering suffix does not indicate plating - consult onsemi's packaging documentation or Aetrix's part-specific compliance report for Pb-free status.

How does the DC current gain (h_FE) of the MPS2369A vary with operating conditions?

The MPS2369A specifies h_FE ≥ 40 at I_C = 10 mA/V_CE = 1.0 V and ≥ 20 at I_C = 100 mA/V_CE = 2.0 V. Gain drops at higher currents and lower V_CE; at –55°C, h_FE ≥ 20 (I_C = 10 mA), while at +125°C it remains ≥ 20. Designers should verify gain under actual bias conditions using the full h_FE vs. I_C curve in the MPS2369A datasheet.

Can the MPS2369A replace the MPS2369 in existing designs?

Yes - the MPS2369A is the preferred, enhanced version of the MPS2369, sharing identical pinout, package, and absolute maximum ratings. It improves on h_FE consistency and switching speed, with tighter V_CE(sat) and V_BE(sat) specifications. No PCB or schematic changes are required when upgrading from MPS2369 to MPS2369A in validated designs.