My Inquiry
My Account
Nexperia USA Inc. NHDTC124EUX
- Part No.:
- NHDTC124EUX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
NHDTC124EUX.pdf
- Description:
- TRANS PREBIAS NPN 80V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:17,480
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NHDTC124EUX from Nexperia is an 80 V, 100 mA NPN resistor-equipped transistor (RET) in SOT323 (SC-70) package, designed for digital switching and IC input control. It integrates 22 kΩ base-input (R1) and 22 kΩ base-emitter (R2) bias resistors, delivers ≤100 mV VCE(sat) at IC = 10 mA / IB = 0.5 mA, and supports up to 60 V input voltage (VI(on)), enabling direct microcontroller GPIO interfacing without external biasing.
For engineers reviewing the NHDTC124EUX datasheet, NHDTC124EUX pinout, NHDTC124EUX application, or NHDTC124EUX equivalent, this part serves as a drop-in replacement for BC846-series transistors in low-power digital logic interfaces, load switching, and level translation where built-in resistors reduce BOM count and PCB area.
Technical Context
This RET integrates a monolithic NPN transistor with two precision laser-trimmed on-die resistors-R1 (22 kΩ) between base and input, R2 (22 kΩ) between base and emitter-enabling single-resistor drive from CMOS/TTL sources. Its 80 V VCEO and 100 mA IO rating support robust operation in 24 V industrial control and automotive body electronics.
The device exhibits hFE ≥ 70 at VCE = 5 V / IC = 10 mA, VI(on) = 2.3–3.0 V (typ.), and VI(off) = 1.15 V (typ.), ensuring reliable turn-on/turn-off margins across -40 °C to +150 °C ambient range. Thermal resistance Rth(j-a) is 397 K/W on 4-layer FR4, supporting sustained 100 mA switching in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Enables safe operation in 24 V and 48 V supply rails with margin against transients. |
| IO | 100 mA - Supports driving LEDs, small relays, MOSFET gates, or logic inputs without external current amplification. |
| R1 / R2 | 22 kΩ / 22 kΩ - Provides fixed base bias ratio of 1:1, eliminating discrete resistor selection and layout for standard digital drive. |
| VCE(sat) | ≤100 mV at IC = 10 mA / IB = 0.5 mA - Minimizes conduction loss and self-heating during active switching. |
| VI(on) | 2.3–3.0 V (typ.) - Ensures compatibility with 3.3 V and 5 V logic families while maintaining noise immunity. |
| hFE | ≥70 at VCE = 5 V, IC = 10 mA - Guarantees sufficient current gain for predictable saturation under typical digital drive conditions. |
| Tj(max) | 150 °C - Allows operation in under-hood or enclosed industrial environments without derating below full current. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 1.3 mm × 1.8 mm × 0.95 mm profile, 3-terminal leadframe with gull-wing leads, optimized for high-density reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Accepts logic-level drive; connects internally to R1 (22 kΩ) and R2 (22 kΩ) network for automatic biasing. |
| 2 | GND (emitter) | Common reference node; ties emitter directly to ground plane, simplifying return path design and minimizing noise coupling. |
| 3 | Output (collector) | Switches load to VCC; rated for 80 V and 100 mA continuous, with ≤100 mV saturation voltage at nominal drive. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | Eliminates two external components per switch, reducing PCB area by ≥2.5 mm² and pick-and-place cycle time. |
| 80 V breakdown rating | Supports 24 V industrial bus systems and 48 V telecom applications with 2× safety margin over nominal rail. |
| 100 mA output capability | Drives standard indicator LEDs (20 mA), small solenoids (≤50 mA), or logic-level MOSFET gates (Qg ≤ 10 nC) directly. |
| VI(on) / VI(off) separation | ≥1.15 V hysteresis ensures noise-immune switching in electrically noisy environments like motor control boards. |
| SOT323 footprint | Compatible with standard SC-70 reflow profiles and automated optical inspection (AOI), enabling high-yield volume manufacturing. |
Applications
| Industrial Sensor Interface | Automotive Body Control |
|---|---|
|
Use Scenario: Level-shifting and buffering signals from Hall-effect or reed switches to MCU GPIOs in PLC I/O modules. IC Role / Device Role / Timing Role: Digital switch isolating 24 V field-side inputs from 3.3 V logic-side processors. Use Value: Built-in 22 kΩ resistors enable direct connection to 24 V sources without external voltage dividers, cutting BOM cost by $0.015/unit. |
Use Scenario: Controlling interior lighting, mirror heaters, or door lock actuators in 12 V vehicle architectures. IC Role / Device Role / Timing Role: Low-side load switch activated by BCM microcontroller outputs. Use Value: 80 V VCEO withstands load-dump transients up to 60 V, eliminating need for TVS clamping in non-safety-critical zones. |
| Consumer Appliance Logic | IoT Edge Node Power Control |
|
Use Scenario: Enabling/disabling power to auxiliary circuits (e.g., display backlight, buzzer, USB port) in smart home hubs. IC Role / Device Role / Timing Role: Single-transistor power gate controlled by ARM Cortex-M0+ GPIO. Use Value: ≤100 mV VCE(sat) limits power loss to <1 mW at 10 mA, extending battery life in always-on standby modes. |
Use Scenario: Managing wake-up signal routing between ultra-low-power sensors and host MCUs in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Signal conditioner converting open-drain sensor alerts into clean CMOS-compatible pulses. Use Value: VI(off) = 1.15 V prevents false triggering from RF coupling or ESD-induced glitches on long PCB traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC846B,115 | Discrete NPN BJT; requires external 10 kΩ base resistor for 3.3 V drive; no integrated R2; VCEO = 65 V. | Lacks built-in bias network; increases component count and layout complexity for same functionality. | Select when legacy designs require pin-for-pin replacement with existing BC846 footprints and external resistor tolerance is acceptable. |
| NHDTC114EUX | Same SOT323 package; R1/R2 = 10 kΩ/10 kΩ; lower VI(on) (1.8–2.5 V); reduced hFE (≥50). | Better suited for 1.8 V/3.3 V logic with tighter input thresholds but less drive margin at higher loads. | Choose for lower-voltage microcontrollers where 2.5 V VI(on) ensures guaranteed turn-on with marginal GPIO drive strength. |
Compared with BC846B,115, NHDTC124EUX reduces bill-of-materials and layout effort via integrated resistors, while offering higher breakdown voltage and tighter input threshold control than NHDTC114EUX-making it optimal for 3.3 V–5 V digital switching where reliability and space savings outweigh minor hFE trade-offs.
Availability
NHDTC124EUX is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, consumer appliance logic, and IoT edge node power control requiring stable component supply across multi-year production cycles.
Supply support for NHDTC124EUX 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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
NHDTC124EUX belongs to the NHDTCxx4EU series of resistor-equipped transistors engineered for digital switching applications where space, BOM count, and design simplicity are critical-targeting industrial automation, automotive subsystems, and smart consumer electronics.
FAQ
What is the maximum continuous collector current for NHDTC124EUX?
The absolute maximum continuous collector current is 100 mA at Tamb ≤ 25 °C on a 4-layer FR4 PCB. Derating applies above 25 °C: power dissipation drops linearly to zero at 150 °C junction temperature, with Ptot = 315 mW at 25 °C and 235 mW on single-layer board.
Does NHDTC124EUX retain AEC-Q101 qualification?
No. Per Revision 2 (October 2025) of the datasheet, NHDTC124EUX is no longer AEC-Q101 qualified. The automotive-qualified variant is designated NHDTC124EU-Q, which carries explicit automotive qualification status and is listed separately in Nexperia's automotive product portfolio.
Can NHDTC124EUX replace BC846B in existing designs?
Yes-with circuit validation. Pinout matches SOT323, and built-in 22 kΩ resistors eliminate the external base resistor required by BC846B. However, verify VI(on) (2.3–3.0 V) and VCE(sat) (≤100 mV) meet system timing and power loss requirements, as BC846B lacks integrated biasing and has different gain characteristics.
What is the thermal resistance from junction to solder point (Rth(j-sp))?
Rth(j-sp) is 150 K/W, measured from die junction to solder joint on a standard FR4 PCB with tin-plated pads. This value enables accurate thermal modeling of localized heating during pulsed operation and supports reliability analysis for high-duty-cycle switching applications.
NHDTC124EUX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN - 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:
- 170 MHz
- Power - Max:
- 235 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
NHDTC124EUX FAQ
1.How can I place an order for NHDTC124EUX through Aetrix?
Please submit a Request for Quotation (RFQ) for NHDTC124EUX 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 NHDTC124EUX reliable?
The price and inventory of NHDTC124EUX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NHDTC124EUX is usually 5 days.
3.What payment methods are accepted for NHDTC124EUX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NHDTC124EUX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NHDTC124EUX?
NHDTC124EUX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NHDTC124EUX 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 NHDTC124EUX?
For technical support, including NHDTC124EUX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NHDTC124EUX requirements.
6.How does Aetrix verify that NHDTC124EUX is sourced from the original manufacturer or authorized distributors?
All NHDTC124EUX 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 NHDTC124EUX meets industry standards.
7.What is the process for return or replacement of NHDTC124EUX?
All NHDTC124EUX units undergo pre-shipment inspection (PSI). If there is an issue with NHDTC124EUX, 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 NHDTC124EUX part is unused and in its original packaging.
Return procedure for NHDTC124EUX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NHDTC124EUX Tags
-
MUN5211T1G
onsemi
-
DTC043ZEBTL
Rohm Semiconductor
-
DTC114EKAT146
Rohm Semiconductor
-
DDTD113ZC-7-F
Diodes Incorporated
-
DRDNB16W-7
Diodes Incorporated
-
PDTC114ET,215
Nexperia USA Inc.
-
PDTC143ZT,215
Nexperia USA Inc.
-
PDTC143ET,215
Nexperia USA Inc.
-
PDTC143XT,215
Nexperia USA Inc.
-
MMUN2211LT1G
onsemi
-
PDTC144ET,215
Nexperia USA Inc.
-
PDTC124ET,215
Nexperia USA Inc.
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
