Nexperia USA Inc. MMBTA92,215

Overview

MMBTA92 from Nexperia is a PNP high-voltage general-purpose transistor in SOT23 package, rated for −300 V V_CEO, −100 mA I_C, and AEC-Q101 qualified for automotive use. It serves as a high-voltage switch or linear amplifier in off-hook detection circuits, ringing generators, and line interface modules where robust breakdown voltage and low leakage are critical.

For engineers reviewing the MMBTA92 datasheet, MMBTA92 pinout, MMBTA92 application, or MMBTA92 equivalent, key selection criteria include verified −300 V collector-emitter blocking capability, confirmed SOT23 pin mapping (1=B, 2=E, 3=C), AEC-Q101 qualification status, and measured h_FE ≥25 at −30 mA, making it suitable for telephony line card and professional comms power control designs.

Technical Context

This discrete PNP bipolar junction transistor operates with open-base V_CEO = −300 V and supports pulsed collector currents up to −200 mA. Its DC current gain h_FE is specified at −10 mA (min 40) and −30 mA (min 25), with saturation voltages V_CE(sat) ≤ −500 mV and V_BE(sat) ≤ −900 mV under defined drive conditions.

Thermal resistance R_th(j-a) is 500 K/W on FR4 PCB with single-sided copper, and leakage currents are tightly controlled: ICBO ≤ −250 nA at V_CB = −200 V, IEBO ≤ −100 nA at V_EB = −3 V - enabling stable operation in high-impedance bias networks.

Key Specifications

Pinout & Package

SOT23 plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 × 1.3 × 1.0 mm body; optimized for automated placement and reflow soldering per IPC-7351 standards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBTA92, MMBT2907A trades voltage robustness for higher gain in low-voltage logic, while ZTX951 delivers higher current in through-hole form - neither matches the unique combination of −300 V, SOT23 size, and AEC-Q101 compliance offered by MMBTA92.

Availability

MMBTA92 is available at Aetrix Electronics and suitable for telephony line cards, automotive telematics modules, and industrial modem interfaces requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant discrete transistors.

Supply support for MMBTA92 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.

MMBTA92 belongs to Nexperia's high-voltage bipolar transistor product line, engineered specifically for telecom infrastructure, professional communications, and automotive power control applications demanding rugged voltage tolerance and AEC-Q101 validation.

FAQ

Is MMBTA92 suitable for automotive applications?

Yes, MMBTA92 is fully qualified to AEC-Q101 standards, including temperature cycling, mechanical shock, and ESD testing. Its guaranteed operation from −65 °C to +150 °C junction temperature and −300 V V_CEO rating make it appropriate for under-hood telematics power switches and infotainment system HV bias networks.

What is the maximum continuous collector current for MMBTA92?

The absolute maximum continuous collector current (I_C) is −100 mA at T_amb ≤ 25 °C on FR4 PCB. At elevated ambient temperatures, derating applies: power dissipation must stay within 250 mW limit, and junction temperature must not exceed +150 °C.

Can MMBTA92 replace MMBTA42 in a circuit?

No - MMBTA42 is its NPN complement, not a functional substitute. Swapping them would invert logic polarity and likely cause circuit failure. For PNP-to-PNP replacement, verify matching V_CEO, h_FE, and package; MMBTA92 has no direct pin-compatible PNP alternative with identical −300 V rating in SOT23.

What is the base-emitter saturation voltage at rated current?

V_BE(sat) is ≤ −900 mV when I_C = −20 mA and I_B = −2 mA at T_amb = 25 °C. This value ensures predictable base drive requirements for reliable saturation in switching applications without excessive base current overhead.