NXP Semiconductors MPSA92,116

Overview

MPSA92,116 from NXP Semiconductors is a PNP high-voltage bipolar junction transistor in TO-92 (SOT54) package, rated for −300 V V_CEO and −300 V V_CBO, with −100 mA DC collector current and 625 mW power dissipation at T_amb ≤ 25 °C; used in high-voltage switching circuits such as CRT flyback drivers and relay interface stages.

For engineers reviewing the MPSA92,116 datasheet, MPSA92,116 pinout, MPSA92,116 application, or MPSA92,116 equivalent, key selection criteria include verified −300 V breakdown rating, confirmed TO-92 mechanical outline per SOT54 standard, h_FE range of 25–40 at −10 mA I_C, and saturation voltage ≤ −500 mV at −20 mA I_C/−2 mA I_B.

Technical Context

This PNP transistor operates with reverse-polarity biasing: emitter positive relative to base and collector. Its high V_CEO and V_CBO ratings enable use in off-line switch-mode topologies where collector swings above ground potential.

Thermal resistance R_{th j-a} is 200 K/W when mounted on FR4 PCB, limiting continuous I_C under ambient conditions; f_T of 50 MHz supports moderate-speed switching up to ~100 kHz with proper drive.

Key Specifications

Pinout & Package

Package: TO-92 plastic through-hole package (JEDEC TO-92, NXP SOT54, JEITA SC-43A), 3-lead single-ended leaded outline with 2.54 mm lead pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP high-voltage transistor applications.

Compared with MPSA92,116, MPSA93,116 offers higher h_FE but reduced voltage capability, while BC639 provides complementary NPN functionality at lower voltage-neither is pin-compatible, requiring schematic and layout revision for substitution.

Availability

MPSA92,116 is available at Aetrix Electronics and suitable for high-voltage switching, relay driving, analog amplification, and sensor interfacing requiring stable component supply across industrial control, power conversion, and test equipment programs.

Supply support for MPSA92,116 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The MPSA92,116 belongs to NXP's general-purpose discrete transistor product line, designed specifically for cost-sensitive, high-reliability linear and switching applications demanding robust high-voltage operation in compact through-hole packages.

FAQ

What is the maximum collector-emitter voltage rating for MPSA92,116?

The MPSA92,116 has a maximum collector-emitter voltage (V_CEO) rating of −300 V under open-base conditions, verified per IEC 60134 Absolute Maximum Ratings. This rating applies to steady-state DC operation and defines the upper limit before avalanche breakdown occurs. Exceeding this voltage risks permanent device failure, even briefly. The MPSA92,116 must be operated within this limit in all circuit configurations.

Is MPSA92,116 pin-compatible with its NPN counterpart MPSA42,116?

Yes, MPSA92,116 and MPSA42,116 share identical TO-92 (SOT54) package dimensions and pinout: Pin 1 = collector, Pin 2 = base, Pin 3 = emitter. However, polarity reversal means circuit-level substitution requires inversion of supply connections and bias networks. The MPSA92,116 cannot be directly swapped into an MPSA42,116 design without modifying the surrounding schematic.

What is the typical DC current gain (h_FE) of MPSA92,116 at −10 mA collector current?

At T_j = 25 °C, V_CE = −10 V, and I_C = −10 mA, the MPSA92,116 exhibits a minimum h_FE of 40 and no maximum specified-typical values fall between 40 and 100 depending on unit variation. This gain level determines required base drive current for saturation; for example, −2 mA I_B ensures full turn-on at −20 mA I_C. The MPSA92,116 datasheet confirms this value in the Characteristics table.

Can MPSA92,116 be used in surface-mount designs?

No, MPSA92,116 is exclusively offered in the through-hole TO-92 (SOT54) package and lacks an official surface-mount variant. Its leaded construction requires plated-through holes on PCBs. While adapters exist, they introduce parasitic inductance and thermal resistance incompatible with high-frequency or high-reliability applications. For SMT implementation, alternative high-voltage transistors like PBSS4041P or ZTX653 must be evaluated-not the MPSA92,116.

What is the thermal resistance from junction to ambient for MPSA92,116?

The MPSA92,116 has a thermal resistance R_{th j-a} of 200 K/W when mounted on a standard FR4 printed-circuit board, as measured per manufacturer test conditions. This value assumes no copper pour or heatsinking; adding 1 cm² of 2-oz copper on the collector pad reduces R_{th j-a} by ~30%. Derating is required above 25 °C ambient-e.g., at 70 °C, maximum allowable P_tot drops to ~350 mW. This specification is explicitly stated in the Thermal Characteristics section of the MPSA92,116 datasheet.