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Nexperia USA Inc. NHDTA124ETR
- Part No.:
- NHDTA124ETR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
NHDTA124ETR.pdf
- Description:
- TRANS PREBIAS PNP 80V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:31,660
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Product details
Overview
NHDTA124ETR 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 use.
For engineers reviewing the NHDTA124ETR datasheet, NHDTA124ETR pinout, NHDTA124ETR application, or NHDTA124ETR equivalent, this device serves as a drop-in replacement for BC857-type PNP transistors in load-switching and logic-level translation circuits where simplified biasing and reduced BOM count are critical.
Technical Context
This RET integrates a PNP bipolar transistor with two precision on-die resistors: R1 = 22 kΩ between base and input terminal, and R2 = 22 kΩ between base and emitter. Its internal configuration eliminates external base bias components while maintaining predictable turn-on/off thresholds across temperature.
The device operates with VI(on) = –3.0 V (typ.) at IC = –10 mA and VCE = –0.3 V, and VI(off) = –1.15 V (min.) at IC = –100 µA, enabling reliable digital interface compatibility with 3.3 V and 5 V logic families. DC current gain hFE is 70 (min.) at VCE = –5 V and IC = –10 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | –80 V - Withstands high-voltage loads without breakdown in open-base configuration. |
| IO | –100 mA - Supports medium-current switching of LEDs, relays, or logic inputs. |
| R1 / R2 | 22 kΩ / 22 kΩ - Enables self-biasing with no external resistors; defines input impedance and switching threshold. |
| VCE(sat) | –100 mV (max.) at IC = –10 mA, IB = –0.5 mA - Ensures low conduction loss and minimal voltage drop in saturated switch mode. |
| hFE | 70 (min.) at VCE = –5 V, IC = –10 mA - Guarantees sufficient current amplification for robust drive margin in digital applications. |
| VI(on) | –3.0 V (typ.) at VCE = –0.3 V, IC = –10 mA - Matches standard TTL/CMOS logic high levels for reliable activation. |
| AEC-Q101 | Qualified - Validated for automotive underhood and cabin applications per stress test requirements. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; compact 2.9 mm × 1.3 mm footprint, 1.1 mm height, and gull-wing lead form for reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input (base node) | Accepts logic-level control signal; internally connected to R1 top terminal. |
| 2 (GND) | GND (emitter) | Emitter reference and return path; tied to R2 bottom and transistor emitter. |
| 3 (O) | Output (collector) | Switched high-side load connection; collector node of integrated PNP transistor. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Matched 22 kΩ R1 and R2 resistors eliminate external components and reduce layout area by >30%. |
| Digital switching optimization | VI(on)/VI(off) thresholds ensure clean transition between logic states with <100 µA leakage at –1.15 V input. |
| Automotive-grade reliability | AEC-Q101 qualification confirms operation over –40 °C to +150 °C junction temperature range. |
| Low saturation voltage | VCE(sat) ≤ –100 mV enables efficient power delivery to loads without significant voltage loss. |
Applications
| LED Driver Interface | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving indicator LEDs from 3.3 V microcontroller outputs with current limiting via external resistor. IC Role / Device Role / Timing Role: PNP switch controlling LED anode connection to supply rail; acts as level-shifting high-side driver. Use Value: Eliminates need for discrete base resistor and reduces PCB space by 2 components per channel. |
Use Scenario: Extending limited GPIO count to control multiple peripheral enable lines in automotive body control modules. IC Role / Device Role / Timing Role: Digital buffer and current amplifier for low-drive MCU pins interfacing with higher-current peripherals. Use Value: Provides 100 mA sink capability per channel while maintaining logic-compatible input thresholds. |
| Logic-Level Translation | Load Switch for Automotive Sensors |
Use Scenario: Converting 5 V CMOS logic signals to 12 V automotive subsystems requiring compatible input thresholds. IC Role / Device Role / Timing Role: Voltage-level translator using emitter-follower configuration with built-in biasing. Use Value: Achieves sub-µs propagation delay with guaranteed VI(on) ≤ –3.0 V and VI(off) ≥ –1.15 V. |
Use Scenario: Powering Hall-effect or analog sensor modules in engine control units with controlled startup sequencing. IC Role / Device Role / Timing Role: High-side load switch enabling/disabling sensor VCC rails under MCU command. Use Value: Withstands 80 V transients and supports 100 mA continuous load current with thermal derating up to 150 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NHDTC124ET | NPN complement with identical R1/R2 values (22 kΩ), same SOT23 package and AEC-Q101 rating. | Requires inverted logic control and low-side switching topology instead of high-side. | Select when circuit uses NPN-based load grounding or requires complementary pairing with NHDTA124ET. |
| BC857BW | Discrete PNP transistor without integrated resistors; requires external 22 kΩ base resistor for equivalent biasing. | Higher component count and layout sensitivity; lacks AEC-Q101 qualification. | Choose only for non-automotive designs where cost-per-component outweighs assembly and qualification benefits. |
Compared with NHDTC124ET, NHDTA124ET provides native high-side switching and positive logic compatibility; versus BC857BW, it delivers verified automotive qualification and eliminates base resistor placement error risk at the cost of fixed bias ratio.
Availability
NHDTA124ETR is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer appliance control systems requiring stable component supply and long-term lifecycle support.
Supply support for NHDTA124ETR 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.
The NHDTA124ETR belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered specifically to replace legacy discrete BJT + resistor combinations in cost-sensitive, space-constrained digital interface applications.
FAQ
What is the maximum allowable continuous collector current for NHDTA124ETR?
The absolute maximum continuous collector current is –100 mA at Tamb ≤ 25 °C on a 4-layer FR4 PCB. Derating applies above 25 °C ambient: power dissipation drops linearly to zero at 150 °C junction temperature, per Figure 1 in the datasheet.
Can NHDTA124ETR be used in place of BC857B in existing designs?
Yes - NHDTA124ETR matches BC857B's pinout (SOT23), polarity (PNP), and key electrical specs (VCEO = –80 V, hFE = 70 min.), while adding integrated 22 kΩ bias resistors. Layout changes are unnecessary, but external base resistors must be removed to avoid double-biasing.
Does NHDTA124ETR support PWM switching at frequencies above 10 kHz?
Yes - with fT = 150 MHz (typ.) and low Cc = 3 pF, the device supports clean switching up to at least 100 kHz. VCE(sat) remains stable under pulsed conditions, and thermal resistance (Rth(j-sp) = 130 K/W) ensures safe operation with moderate duty cycles.
Is the marking code "QD%" laser-etched or molded into the package?
The marking "QD%" is laser-marked on the top surface of the SOT23 package, where "%" is a placeholder for the manufacturing site code. Marking conforms to JEDEC standards and remains legible after standard reflow and cleaning processes.
NHDTA124ETR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 80 V
- Resistor - Base (R1):
- 22 kOhms
- Resistor - Emitter Base (R2):
- 22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 70 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- 150 MHz
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
NHDTA124ETR FAQ
1.How can I place an order for NHDTA124ETR through Aetrix?
Please submit a Request for Quotation (RFQ) for NHDTA124ETR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NHDTA124ETR reliable?
The price and inventory of NHDTA124ETR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NHDTA124ETR is usually 5 days.
3.What payment methods are accepted for NHDTA124ETR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NHDTA124ETR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NHDTA124ETR?
NHDTA124ETR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NHDTA124ETR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NHDTA124ETR?
For technical support, including NHDTA124ETR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NHDTA124ETR requirements.
6.How does Aetrix verify that NHDTA124ETR is sourced from the original manufacturer or authorized distributors?
All NHDTA124ETR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NHDTA124ETR meets industry standards.
7.What is the process for return or replacement of NHDTA124ETR?
All NHDTA124ETR units undergo pre-shipment inspection (PSI). If there is an issue with NHDTA124ETR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NHDTA124ETR part is unused and in its original packaging.
Return procedure for NHDTA124ETR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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