Nexperia USA Inc. BCP53-16TX

Overview

BCP53-16TX from Nexperia is a PNP medium power bipolar junction transistor in SOT223 (SC-73) package, rated for −80 V V_CEO, −1 A continuous collector current, and 100–250 h_FE at V_CE = −2 V and I_C = −150 mA. It serves as a high-side switch or linear regulator pass element in automotive and industrial power management circuits.

For engineers reviewing the BCP53-16TX datasheet, BCP53-16TX pinout, BCP53-16TX application, or BCP53-16TX equivalent, key selection criteria include its AEC-Q101 qualification, thermal performance on FR4 PCBs (R_th(j-a) down to 70 K/W), peak current capability of −2 A, and guaranteed DC current gain range - critical for stable biasing in analog and switching designs.

Technical Context

This PNP transistor operates with open-base collector-emitter breakdown voltage of −80 V and emitter-base breakdown voltage of −5 V, enabling robust operation in high-side configurations where emitter is tied to rail. Its pulsed current rating (−2 A, t_p ≤ 1 ms) supports transient load handling in power management stages.

The device delivers h_FE = 100–250 under standardized test conditions (V_CE = −2 V, I_C = −150 mA, pulsed), ensuring predictable current amplification across temperature (−55 °C to 150 °C). Saturation voltage remains ≤ −500 mV at I_C = −500 mA / I_B = −50 mA, supporting efficient switching in driver applications.

Key Specifications

Pinout & Package

SOT223 (SC-73) surface-mount plastic package with integrated heatsink tab (pin 4 connected to collector); footprint dimensions 6.7 × 3.7 mm, 1.1 mm height, and 4-terminal layout optimized for thermal transfer via copper pour.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP medium power transistor applications.

Compared with BCP53-10TX and ZTX951, BCP53-16TX uniquely combines automotive qualification, highest guaranteed h_FE floor (100), and superior thermal resistance (70 K/W), making it optimal for production-grade high-reliability high-side switches and linear regulators where gain stability and thermal headroom are critical.

Availability

BCP53-16TX is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC power distribution, and telecom DC-DC bias supply circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.

Supply support for BCP53-16TX 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.

The BCP53T series belongs to Nexperia's medium-power bipolar transistor product line, engineered specifically for robust high-side switching and linear regulation in harsh-environment applications demanding AEC-Q101 reliability and thermally efficient SOT223 packaging.

FAQ

Is BCP53-16TX pin-compatible with other SOT223 PNP transistors like MMBT5336?

No - BCP53-16TX uses a 4-pin SOT223 layout with pins 2 and 4 both connected to the collector for thermal enhancement, whereas MMBT5336 is a 3-pin SOT23 device with no collector thermal pad. Physical and electrical pinouts are incompatible; PCB redesign is required for substitution.

What is the maximum allowable base current for continuous operation?

The absolute maximum DC base current is −0.2 A per datasheet limiting values. For reliable continuous operation, base current should be limited to ≤ −50 mA to maintain V_CE(sat) ≤ −500 mV and prevent thermal runaway, especially at ambient temperatures above 85 °C.

Does BCP53-16TX support pulsed operation beyond its DC ratings?

Yes - it supports −2 A peak collector current for single pulses ≤1 ms (duty cycle ≤2%), validated per IEC 60134. This enables short-duration overload handling in motor drivers and surge protection circuits, provided average power stays within 1.8 W derating curves.

How does the dual-collector pin (pins 2 and 4) affect PCB layout?

Pins 2 and 4 are internally shorted to the same collector node; both must be soldered to a common copper pour. The larger thermal pad (pin 4) should connect to ≥1 cm² of inner-layer copper on 4-layer boards to achieve the 70 K/W R_th(j-a) rating - omitting this connection degrades thermal performance by up to 120 K/W.