Nexperia USA Inc. PBHV8115Z-QX

Overview

PBHV8115Z-QX from Nexperia is a 150 V, 1 A NPN high-voltage low-V_CEsat transistor in SOT223 (SC-73) package, designed for automotive-grade switching in high-voltage DC loads. It delivers V_CEsat = 225–350 mV at I_C = 1 A / I_B = 200 mA, h_FE = 10–30 at full load, and supports 2 A peak collector current. Used in LED chain drivers and automotive motor management.

For engineers reviewing the PBHV8115Z-QX datasheet, PBHV8115Z-QX pinout, PBHV8115Z-QX application, or PBHV8115Z-QX equivalent, key selection criteria include verified V_CEsat performance at 1 A, AEC-Q101 qualification, thermal resistance R_th(j-sp) = 20 K/W, and dual-collector pin configuration for enhanced heatsinking in LED backlighting and HID front lighting circuits.

Technical Context

This NPN bipolar junction transistor operates with open-base V_CEO = 150 V and V_CBO = 400 V, enabling robust blocking in 100–120 V automotive rail applications. Its low saturation voltage is achieved via optimized epitaxial base design and emitter geometry, delivering <350 mV V_CEsat under pulsed 1 A conditions (t_p ≤ 300 µs, duty ≤ 0.02).

Thermal performance is defined by two mounting configurations: R_th(j-a) = 175 K/W on standard FR4 and 89 K/W with 6 cm² collector pad - critical for sustained 1 A operation in SMPS and hook-switch telecom designs. Switching times (t_on = 572 ns, t_off = 2230 ns) are characterized at V_CC = 6 V, I_C = 0.5 A, and ±0.1 A base drive.

Key Specifications

Pinout & Package

Package: SC-73 (SOT223), 4-lead surface-mount plastic package with extended heatsink tab (collector-connected pins 2 and 4), 6.5 mm × 3.5 mm × 1.65 mm body, 2.3 mm lead pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSS12201LT1G and DXT121150000000000, PBHV8115Z-QX uniquely combines 150 V rating, sub-350 mV V_CEsat, dual-collector SOT223 thermal optimization, and AEC-Q101 qualification - making it the only option qualified for continuous 1 A operation in automotive lighting and motor control.

Availability

PBHV8115Z-QX is available at Aetrix Electronics and suitable for LED chain module driver, LCD backlighting, and automotive motor management applications requiring stable component supply, AEC-Q101 traceability, and long-term production continuity.

Supply support for PBHV8115Z-QX 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 essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.

PBHV8115Z-QX belongs to Nexperia's high-voltage bipolar transistor product line, engineered specifically for automotive-grade switching in 12–48 V systems with stringent thermal and reliability requirements.

FAQ

What is the maximum continuous collector current for PBHV8115Z-QX at 100 °C ambient?

At T_amb = 100 °C with a 6 cm² collector pad on FR4, the device sustains 1 A continuous due to its 89 K/W R_th(j-a) and 150 °C T_jmax. Derating curves confirm 1 A remains within thermal limits up to 125 °C ambient when mounted per Fig. 1 condition (2).

Is PBHV8115Z-QX pin-compatible with standard SOT223 NPN transistors?

No - PBHV8115Z-QX uses a 4-pin SC-73 variant with pins 2 and 4 both connected to the collector and thermal tab. Standard 3-pin SOT223 devices lack this dual-collector configuration and require PCB footprint redesign to accommodate the fourth pin and enlarged thermal pad.

Does PBHV8115Z-QX require a base resistor, and what value is recommended?

Yes - a base resistor is required to limit I_B to 200 mA for guaranteed saturation at 1 A. With V_BEsat ≈ 1.15 V and typical 3.3 V or 5 V GPIO drive, a 10 Ω (for 5 V) or 18 Ω (for 3.3 V) resistor ensures proper bias while accounting for driver output impedance.

How does the dual-collector configuration improve thermal performance?

Pins 2 and 4 both connect internally to the collector and thermal tab, doubling the solder joint area and reducing thermal resistance from junction to PCB. This achieves R_th(j-sp) = 20 K/W - 3× lower than typical single-collector SOT223 - enabling 1.4 W dissipation without forced air cooling.