Nexperia USA Inc. NHDTA124ETVL

Overview

NHDTA124ETVL from Nexperia is a PNP resistor-equipped transistor (RET) in SOT23 (TO-236AB) package, designed for digital switching and IC input control. It features 80 V collector-emitter breakdown voltage, 100 mA output current capability, built-in 22 kΩ input and 22 kΩ base-emitter bias resistors, and AEC-Q101 qualification for automotive-grade reliability.

For engineers reviewing the NHDTA124ETVL datasheet, NHDTA124ETVL pinout, NHDTA124ETVL application, or NHDTA124ETVL equivalent, this device serves as a drop-in replacement for BC856-series transistors in cost-sensitive digital logic interfaces, load switching, and microcontroller I/O conditioning circuits where simplified biasing and reduced BOM count are critical.

Technical Context

This PNP RET integrates two precision-matched on-die resistors (R1 = R2 = 22 kΩ) to eliminate external base bias components, enabling direct connection to CMOS/TTL logic outputs. Its −80 V V_CEO rating supports robust operation in 24 V industrial and 12 V automotive supply rails with margin.

The device delivers h_FE = 70 at V_CE = −5 V and I_C = −10 mA, with V_CE(sat) ≤ −100 mV under I_C = −10 mA / I_B = −0.5 mA conditions-ensuring low conduction loss in active-low switching configurations.

Key Specifications

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package: 3-pin, 1.3 mm × 2.9 mm footprint, 1.1 mm height, JEDEC-compliant lead pitch of 0.95 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NHDTC124ET, NHDTA124ET enables high-side switching with non-inverted logic control; compared with BC856B,215, it reduces bill-of-materials by two resistors and adds automotive-grade reliability assurance without footprint change.

Availability

NHDTA124ETVL is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and consumer appliance user-interface modules requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for NHDTA124ETVL 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-including logic, discretes, MOSFETs, and ESD protection devices-with manufacturing rooted in process efficiency and automotive-grade quality systems.

The NHDTA124ETVL belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered specifically to replace discrete BJT + resistor combinations in digital interface and switching applications-reducing design time, PCB area, and assembly cost while maintaining AEC-Q101 compliance.

FAQ

What is the maximum allowable ambient temperature for continuous operation?

The NHDTA124ETVL supports ambient temperatures from −55 °C to +150 °C, but its usable ambient range depends on power dissipation. At full 100 mA output and 100 mV saturation voltage, power dissipation is 10 mW-well below the 350 mW limit on 4-layer PCBs. Derating begins above +75 °C per Figure 1, with full rating maintained up to +85 °C in typical industrial layouts.

Can NHDTA124ETVL be used in linear amplifier configurations?

No-NHDTA124ETVL is optimized for digital switching, not analog amplification. Its integrated resistors fix the base bias point, limiting operating point flexibility. The h_FE variation across temperature and current (Fig. 10) and lack of guaranteed small-signal parameters make it unsuitable for linear gain stages. Use discrete BJTs like BC856B for amplifier designs.

How does the built-in resistor ratio affect switching speed?

The matched 22 kΩ R1/R2 ratio sets a fixed base current path that limits turn-on/turn-off transition times. Measured propagation delay is typically <100 ns at V_CC = 5 V and I_C = 10 mA, sufficient for <1 MHz digital signals. For higher-speed applications (>5 MHz), consider dedicated digital transistors like PMMBT2907A with lower C_c (3 pF) and optimized charge storage.

Is the marking code 'QD%' consistent across all production lots?

Yes-the marking code QD% is standardized for NHDTA124ETVL per Table 5, where '%' represents a variable manufacturing site identifier (e.g., 'QD1' for Nijmegen, 'QD2' for Bangkok). This code is laser-etched on the top surface of the SOT23 package and verified during final test; no functional or parametric differences exist between sites.