Nexperia USA Inc. PUMD6/ZLF

Overview

PUMD6/ZLF from Nexperia is a dual NPN/PNP resistor-equipped transistor (RET) in SOT363 (SC-88) package, integrating built-in 4.7 kΩ bias resistors on both transistors with R2 open. It delivers 50 V V_CEO, 100 mA I_O, and supports complementary switching in compact digital logic interfaces. Used for low-current peripheral driving and IC input control in industrial automation modules.

For engineers reviewing the PUMD6 datasheet, PUMD6 pinout, PUMD6 application, or PUMD6 equivalent, this page provides verified pin functions, thermal derating curves, DC current gain (h_FE ≥ 200 at I_C = 1 mA), saturation voltage (V_CE(sat) ≤ 100 mV), and validated alternatives to BC847/BC857 in space-constrained PCB layouts.

Technical Context

The PUMD6 integrates two monolithically matched silicon transistors - TR1 (NPN) and TR2 (PNP) - each with a dedicated 4.7 kΩ input bias resistor (R1) and no second resistor (R2 = open). It operates with independent emitter grounding (GND1/GND2), enabling true complementary push-pull or level-shifting configurations without external bias networks.

Its design targets direct replacement of discrete BJT + resistor pairs in digital switching, where VI(on) = 0.88–1.3 V (TR1) and VI(off) = 500–585 mV ensure clean TTL/CMOS-compatible thresholds, while f_T = 230 MHz (TR1) and 180 MHz (TR2) support high-speed signal routing up to ~50 MHz edge rates.

Key Specifications

Pinout & Package

SOT363 (TSSOP6) plastic surface-mount package: 2.1 mm × 1.25 mm × 0.95 mm body, 0.65 mm lead pitch, 6-pin configuration with gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar resistor-equipped transistor applications.

Compared with PUMH7 and PUMB3, the PUMD6 uniquely provides matched NPN/PNP functionality in one package - enabling true complementary switching, rail-to-rail level translation, and reduced interconnect inverter designs that neither alternative can replicate.

Availability

PUMD6/ZLF is available at Aetrix Electronics and suitable for industrial digital I/O modules, microcontroller peripheral drivers, and logic-level translation interfaces requiring stable component supply and long-term production continuity.

Supply support for PUMD6/ZLF 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 essential semiconductors for automotive, industrial, mobile, and computing markets.

The PUMD6 belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered to simplify digital interface design by integrating biasing networks directly into dual-transistor packages for space- and cost-sensitive applications.

FAQ

What is the maximum operating temperature for continuous 100 mA output per channel?

The PUMD6 supports continuous 100 mA per transistor up to 75 °C ambient temperature when mounted on a standard FR4 PCB with single-sided 35 μm copper. Above this, power must be derated per the 416 K/W junction-to-ambient thermal resistance curve - e.g., at 100 °C ambient, max I_O drops to ~65 mA to maintain T_j ≤ 150 °C.

Can PUMD6 replace BC847 and BC857 simultaneously in a single footprint?

Yes - the SOT363 footprint matches the combined PCB area of two SOT23 devices, and its pinout (GND1/I1/O2/GND2/I2/O1) allows direct substitution in dual-transistor layouts where BC847 (NPN) and BC857 (PNP) were previously placed adjacently. No re-routing is needed if GND1/GND2 are tied externally or used separately per design.

Is R2 truly unconnected, or is it internally shorted or pulled?

R2 is open - not shorted or pulled. The datasheet explicitly states "R2 = open" in the title and Table 8, and the internal schematic shows no connection between the second resistor terminal and any internal node. This allows full flexibility: users may add external R2 if needed for specific biasing, or leave it unconnected for standard RET operation.

Does PUMD6 meet automotive qualification standards?

No - the September 2025 revision history confirms PUMD6 is non-automotive qualified. It has been changed from automotive qualification status, and Nexperia explicitly states that only designated -Q suffix variants (e.g., PUMD6-Q) are qualified for automotive use. For AEC-Q101 compliance, engineers must select the automotive-grade version.