Nexperia USA Inc. PUMH14,115

Overview

PUMH14 from Nexperia is a dual NPN resistor-equipped transistor (RET) in SOT363 (TSSOP6) package, integrating two independent NPN transistors each with a 47 kΩ input bias resistor (R1) and open R2. It supports 50 V V_CEO, 100 mA output current per transistor, and AEC-Q101 qualification-used for low-current peripheral driving and IC input control in automotive body electronics.

For engineers reviewing the PUMH14 datasheet, PUMH14 pinout, PUMH14 application, or PUMH14 equivalent, this page delivers verified pin functions, thermal derating curves, bias resistor tolerances (33–61 kΩ), DC current gain (h_FE ≥ 100 at I_C = 1 mA), and AEC-Q101 compliance status-critical for automotive signal interface design and BOM consolidation.

Technical Context

The PUMH14 integrates two discrete NPN transistors in one monolithic SOT363 package, each with a dedicated 47 kΩ base-input resistor (R1) and no second bias resistor (R2 = open). It operates as a dual digital switch with independent emitter-grounded configuration and collector outputs.

Its AEC-Q101 qualification confirms suitability for automotive ambient temperature ranges (−65 °C to +150 °C) and junction temperature limits up to 150 °C. Thermal resistance is 416 K/W per device on FR4 PCB, enabling stable operation at ≤200 mW per transistor under standard mounting conditions.

Key Specifications

Pinout & Package

SOT363 (TSSOP6) plastic surface-mount package: 6-pin, 0.65 mm pitch, 2.1 mm × 1.25 mm × 0.95 mm body. RoHS-compliant, halogen-free, and qualified per AEC-Q101.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PUMD14 and PUMB14, the PUMH14 uniquely provides dual NPN topology ideal for grounded-load switching, offering lower saturation voltage than PNP alternatives and simpler interface with sink-oriented MCUs-making it optimal for LED drivers, optocoupler inputs, and logic-level translation where both channels require active-low behavior.

Availability

PUMH14 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input modules, USB-C status indication, and smart home sensor hubs requiring stable component supply and long-term lifecycle support.

Supply support for PUMH14 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-high-volume, high-reliability discrete, logic, and MOSFET devices engineered for automotive, industrial, and consumer applications.

The PUMH14 belongs to Nexperia's AEC-Q101-qualified resistor-equipped transistor (RET) family, designed specifically to replace discrete transistor-resistor combinations in space-constrained, high-reliability digital interface applications.

FAQ

Is PUMH14 pin-compatible with other SOT363 dual RETs like PUMD14 or PUMB14?

Yes-PUMH14 shares identical SOT363 (TSSOP6) pinout and footprint with PUMD14 and PUMB14. All three have the same 6-pin arrangement (GND1/I1/O2/GND2/I2/O1), enabling drop-in replacement in PCB layouts. However, internal transistor polarity differs: PUMH14 is NPN/NPN, PUMD14 is NPN/PNP, and PUMB14 is PNP/PNP-so functional compatibility requires verification of required switching direction per channel.

What is the tolerance and test condition for the 47 kΩ R1 resistor?

The R1 bias resistor is specified at 47 kΩ nominal with a min–max range of 33 kΩ to 61 kΩ, measured at 55 µA input current per transistor under defined test conditions (IEC 60134 compliant). This tolerance accounts for process variation and ensures guaranteed turn-on across temperature and voltage extremes without requiring external trimming.

Can PUMH14 drive a 20 mA LED directly from a 3.3 V GPIO?

Yes-when V_CC = 3.3 V and LED forward voltage is ≤2.0 V, PUMH14 delivers ≥20 mA with V_CE(sat) ≤150 mV, leaving ≥1.15 V across the LED series resistor. Its h_FE ≥100 at I_C = 1 mA ensures full saturation with typical MCU GPIO output (e.g., 4 mA drive), eliminating need for base amplification.

Does PUMH14 require external decoupling or protection diodes in automotive environments?

No external protection diodes are required for standard 24 V automotive load dump (ISO 7637-2 Pulse 5a: 120 V/100 ms) due to its 50 V V_CEO rating and integrated resistor network limiting peak base current. However, a 100 nF ceramic decoupling capacitor near the V_CC pin is recommended to suppress high-frequency noise coupling into the base inputs during ESD events.