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Nexperia USA Inc. NHDTC124EUF
- Part No.:
- NHDTC124EUF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
NHDTC124EUF.pdf
- Description:
- TRANS PREBIAS NPN 80V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:3,677
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Product details
Overview
NHDTC124EU 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 input and 22 kΩ base-emitter bias resistors, delivers 70 minimum DC current gain at 10 mA/5 V, and supports up to 60 V on-state input voltage - enabling direct microcontroller GPIO interfacing without external biasing.
For engineers reviewing the NHDTC124EU datasheet, NHDTC124EU pinout, NHDTC124EU application, or NHDTC124EU equivalent, key selection criteria include built-in resistor values (R1 = R2 = 22 kΩ), collector-emitter saturation voltage ≤100 mV at IC = 10 mA/IB = 0.5 mA, off-state input voltage threshold of 1.15 V (typ), and AEC-Q101 qualification status per revision history.
Technical Context
This RET implements a monolithic NPN transistor with two integrated precision thin-film resistors: R1 (base input resistor) and R2 (base-emitter feedback resistor), both rated 22 kΩ ±30%. The internal topology eliminates discrete bias components while maintaining predictable turn-on/off behavior across temperature.
It operates as a single-stage digital switch with defined VI(on) = 2.3–3.0 V (typ) and VI(off) = 0.8–1.15 V (typ) at IC = 10 µA, supporting TTL- and CMOS-compatible logic-level drive. Thermal resistance is 397 K/W (junction-to-solder-point, 4-layer PCB), enabling reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum safe collector-emitter voltage before breakdown; enables use in 24 V and 48 V industrial control rails. |
| IO | 100 mA - Continuous output current capability; sufficient for driving LEDs, small relays, and logic inputs. |
| hFE | 70 (min) at VCE = 5 V, IC = 10 mA - Ensures stable current amplification without external gain-setting components. |
| R1 / R2 | 22 kΩ / 22 kΩ - Matched internal bias resistors simplify PCB layout and eliminate 2 external parts per switch node. |
| VCE(sat) | ≤100 mV at IC = 10 mA, IB = 0.5 mA - Minimizes conduction loss and self-heating in high-duty-cycle digital switching. |
| VI(on) | 2.3–3.0 V (typ) at VCE = 0.3 V, IC = 10 mA - Compatible with 3.3 V MCU outputs without level-shifting. |
| Ptot | 315 mW (4-layer PCB) - Defines maximum power dissipation envelope for thermal design under continuous load. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 1.35 mm × 1.75 mm footprint, 0.95 mm height, 3-terminal leadframe with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connects to driving signal source through internal R1; no external base resistor required. |
| 2 | GND (emitter) | Common reference node; ties emitter directly to system ground plane for low-inductance return path. |
| 3 | Output (collector) | Switches load between VCC and this terminal; supports up to 80 V and 100 mA continuous current. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Matched 22 kΩ R1/R2 resistors reduce BOM count by 2 parts and eliminate resistor placement errors. |
| High breakdown voltage | 80 V VCEO rating allows robust operation in 24 V/48 V industrial and automotive subsystems. |
| Low saturation voltage | VCE(sat) ≤100 mV ensures <10 mW conduction loss at 100 mA, minimizing thermal stress in dense layouts. |
| AEC-Q101 qualified | Qualified per Rev. 1; revision history confirms automotive eligibility unless superseded - verify latest status via Nexperia.com. |
| Small-footprint packaging | SOT323 (SC-70) occupies 2.4 mm² area - ideal for space-constrained IoT sensors and portable electronics. |
Applications
| Industrial PLC Input Stage | Microcontroller GPIO Expansion |
|---|---|
Use Scenario: Isolating and conditioning 24 V DC field signals into 3.3 V logic levels for PLC main controller. IC Role / Device Role / Timing Role: Digital input buffer and level translator; provides current-limited, noise-immune interface between field wiring and MCU. Use Value: Eliminates need for external pull-up, current-limiting, and clamping components - reduces input stage BOM by ≥4 parts per channel. |
Use Scenario: Expanding limited GPIO count on ARM Cortex-M0+ microcontrollers to drive multiple LED indicators or enable lines. IC Role / Device Role / Timing Role: Low-latency digital switch; turns on/off loads within 100 ns (based on fT = 170 MHz). Use Value: Enables direct 3.3 V MCU drive without level shifters or base resistors - cuts routing complexity and improves signal integrity. |
| Automotive Body Control Module | Consumer Appliance Load Switching |
Use Scenario: Controlling interior lighting, mirror heaters, or window lift motors in 12 V automotive systems. IC Role / Device Role / Timing Role: High-reliability load switch; handles inductive kickback and load dump transients per AEC-Q101 stress tests. Use Value: Qualified for automotive use (Rev. 1); withstands 80 V transients and operates from −40 °C to +150 °C junction temperature. |
Use Scenario: Replacing BC846-based switches in white goods control boards for solenoid valves and fan drivers. IC Role / Device Role / Timing Role: Cost-optimized digital switch; replaces discrete transistor + two resistors with single SMT device. Use Value: Reduces pick-and-place cost by one placement step and lowers assembly defect rate versus 3-part solutions. |
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 transistor; requires external 10 kΩ base resistor and 10 kΩ base-emitter resistor to match NHDTC124EU function. | No integrated resistors - increases board area, component count, and assembly steps; lacks AEC-Q101 qualification. | Select when legacy design reuse or parametric tuning of bias network is required; not drop-in compatible. |
| NHDTC114EU | Same SOT323 package but with 10 kΩ R1/R2; lower VI(on) (1.8–2.5 V) and lower hFE (50 min) than NHDTC124EU. | Better suited for 1.8 V/2.5 V logic families; less margin for noisy environments due to lower input threshold. | Choose for ultra-low-voltage drive or tighter VI(on) tolerance; avoid if >3 V MCU outputs dominate the system. |
Compared with BC846B,115, NHDTC124EU saves two passives and qualifies for automotive use; compared with NHDTC114EU, it offers higher noise immunity and better drive margin for 3.3 V systems - making it optimal for new industrial and automotive digital I/O designs.
Availability
NHDTC124EU is available at Aetrix Electronics and suitable for industrial PLC input stages, automotive body control modules, and consumer appliance load switching requiring stable component supply and long-term lifecycle support.
Supply support for NHDTC124EU 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 efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
NHDTC124EU belongs to the NHDTCxx4EU series of resistor-equipped transistors engineered specifically for simplified digital switching in space- and cost-constrained applications - reducing design time and manufacturing overhead.
FAQ
Is NHDTC124EU pin-compatible with BC846B?
No - NHDTC124EU uses SOT323 pinout (1=Input, 2=GND, 3=Output), while BC846B in SOT23 has 1=Emitter, 2=Base, 3=Collector. Direct replacement requires PCB redesign. The functional equivalence lies in circuit role, not mechanical compatibility.
What is the maximum allowable input voltage (VI) for NHDTC124EU?
The absolute maximum input voltage is +60 V, as specified in Table 6 (Limiting Values). This rating applies with emitter grounded and collector open; exceeding this risks permanent damage to the internal R1 resistor or transistor junction.
Does NHDTC124EU retain AEC-Q101 qualification in Rev. 2?
Revision history states that "part of the products (as listed) have removed automotive qualification status." While Rev. 1 confirmed AEC-Q101, Rev. 2 does not reassert it for NHDTC124EU - users must consult Nexperia's official product status page for current qualification status before automotive deployment.
How does thermal performance differ between single-sided and 4-layer PCB mounting?
Rth(j-sp) improves from 532 K/W (single-sided) to 397 K/W (4-layer) and Rth(j-a) drops from 397 K/W to 150 K/W. This allows 2.1× higher continuous power dissipation (315 mW vs. 235 mW) and extends safe operating area in thermally demanding applications.
NHDTC124EUF 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
NHDTC124EUF FAQ
1.How can I place an order for NHDTC124EUF through Aetrix?
Please submit a Request for Quotation (RFQ) for NHDTC124EUF 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 NHDTC124EUF reliable?
The price and inventory of NHDTC124EUF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NHDTC124EUF is usually 5 days.
3.What payment methods are accepted for NHDTC124EUF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NHDTC124EUF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NHDTC124EUF?
NHDTC124EUF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NHDTC124EUF 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 NHDTC124EUF?
For technical support, including NHDTC124EUF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NHDTC124EUF requirements.
6.How does Aetrix verify that NHDTC124EUF is sourced from the original manufacturer or authorized distributors?
All NHDTC124EUF 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 NHDTC124EUF meets industry standards.
7.What is the process for return or replacement of NHDTC124EUF?
All NHDTC124EUF units undergo pre-shipment inspection (PSI). If there is an issue with NHDTC124EUF, 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 NHDTC124EUF part is unused and in its original packaging.
Return procedure for NHDTC124EUF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NHDTC124EUF Tags
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