onsemi MPSL01_D27Z

Overview

MPSL01_D27Z from Fairchild Semiconductor is an NPN general-purpose amplifier transistor in TO-92 package, rated for 120 V_CEO, 200 mA continuous collector current, and 625 mW power dissipation at 25°C. It is designed for high-voltage amplification and gas discharge display driving applications, with DC current gain (h_FE) ranging from 50 to 300 at V_CE = 5.0 V and I_C = 10 mA.

For engineers reviewing the MPSL01_D27Z datasheet, pinout, applications, or equivalent options, key selection criteria include its 140 V_CBO rating, 8.0 pF output capacitance at 10 V, 60 MHz f_T, -55°C to +150°C operating junction temperature range, and TO-92 tape-and-reel packaging per EOL code D27Z.

Technical Context

The MPSL01_D27Z implements a silicon planar NPN bipolar junction transistor structure optimized for stable high-voltage linear amplification and switching. Its process (Fairchild Process 16) delivers consistent h_FE spread and low leakage, with verified V_(BR)EBO = 5.0 V and I_EBO ≤ 100 nA under specified test conditions.

Thermal design is supported by R_θJA = 200°C/W and R_θJC = 83.3°C/W, enabling operation up to +150°C junction temperature. The device exhibits V_CE(sat) ≤ 0.3 V at I_C = 50 mA / I_B = 5.0 mA and small-signal h_fe ≥ 30 at 1 kHz, confirming suitability for both analog gain stages and digital switching roles.

Key Specifications

Pinout & Package

Package: TO-92 - Standard 3-lead through-hole plastic package with flat side orientation; lead configuration follows JEDEC TO-92 outline (Emitter-Base-Collector, left-to-right when flat side faces viewer and leads point downward).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 2N5551 and MPSA42, the MPSL01_D27Z offers identical performance to 2N5551 in all key parameters while being optimized for tape-and-reel automation (EOL D27Z), whereas MPSA42 trades gain stability for higher voltage tolerance-making MPSL01_D27Z the preferred choice for cost-sensitive, volume-manufactured 120 V amplifier and display driver designs.

Availability

MPSL01_D27Z is available at Aetrix Electronics and suitable for gas discharge display driving, high-voltage linear amplification, and relay interface applications requiring stable component supply, full traceability, and long-term industrial availability.

Supply support for MPSL01_D27Z 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

Fairchild Semiconductor was a U.S.-based semiconductor company specializing in power management, analog, and discrete devices, later acquired by ON Semiconductor in 2016.

The MPSL01_D27Z belongs to Fairchild's legacy NPN general-purpose amplifier family, engineered for robustness in high-voltage industrial control and display subsystems where reliability across wide temperature and voltage ranges is critical.

FAQ

What is the pin configuration of the MPSL01_D27Z?

The MPSL01_D27Z uses a standard TO-92 package with emitter-base-collector pinout (left-to-right when flat side faces viewer and leads point downward). This matches JEDEC TO-92 mechanical specification and is confirmed in Fairchild's packaging diagrams for EOL code D27Z. The MPSL01_D27Z must be mounted with correct lead alignment to avoid functional failure in common-emitter or common-collector circuits.

Is the MPSL01_D27Z RoHS compliant?

The MPSL01_D27Z was manufactured prior to RoHS enforcement timelines and is not RoHS compliant. It contains lead in solder and die attach materials per pre-2006 Fairchild specifications. For RoHS-compliant alternatives, engineers should evaluate modern equivalents such as the MMBT5551 (SOT-23) or PN2222A variants with updated material declarations-though these differ in package and thermal performance from the MPSL01_D27Z.

What is the maximum power dissipation for MPSL01_D27Z at 70°C ambient?

At 70°C ambient, the MPSL01_D27Z derates linearly from its 625 mW rating at 25°C using 5.0 mW/°C. The reduction is (70 − 25) × 5.0 = 225 mW, yielding a maximum allowable dissipation of 400 mW. This value assumes still-air convection on a standard FR-4 PCB with minimal copper; actual thermal performance depends on board layout and airflow. The MPSL01_D27Z must be operated within this limit to maintain T_J ≤ 150°C.

Can MPSL01_D27Z replace MPSL01_D26Z in production?

Yes-the MPSL01_D27Z and MPSL01_D26Z share identical die, electrical specs, and TO-92 package; they differ only in tape-and-reel machine option ("E" vs. "A") and reel orientation (emitter-first vs. collector-first). Both are fully interchangeable in automated placement equipment once feeder setup is adjusted. The MPSL01_D27Z maintains full functional and reliability equivalence with the MPSL01_D26Z.

What is the typical V_BE(sat) for MPSL01_D27Z at I_C = 50 mA?

The typical V_BE(sat) for MPSL01_D27Z at I_C = 50 mA and I_B = 5.0 mA is 1.3 V, with a maximum of 1.4 V per the datasheet's ON CHARACTERISTICS table. This value reflects base-emitter forward voltage under hard saturation conditions and is critical for calculating required base drive resistance in switching applications. Designers must ensure sufficient base current is supplied to achieve this V_BE(sat) and guarantee low V_CE(sat) in the MPSL01_D27Z.