Nexperia USA Inc. NHDTC124ETR
- Part No.:
- NHDTC124ETR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
NHDTC124ETR.pdf
- Description:
- TRANS PREBIAS NPN 80V TO236AB
- Quantity:
- Payment:

- Shipping:

Inventory:15,044
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Product details
Overview
NHDTC124ETR from Nexperia is an AEC-Q101-qualified NPN resistor-equipped transistor (RET) in SOT23 package, integrating 22 kΩ input and 22 kΩ base-emitter bias resistors. It delivers 100 mA output current with 80 V collector-emitter breakdown voltage and 100 mV saturation voltage at IC = 10 mA/IB = 0.5 mA, used for digital switching and IC input control in automotive body electronics.
For engineers reviewing the NHDTC124ETR datasheet, NHDTC124ETR pinout, NHDTC124ETR application, or NHDTC124ETR equivalent, this page provides verified pin functions, thermal derating curves, on/off-state input voltage thresholds, DC current gain (hFE = 70 typ. at IC = 10 mA), and validated automotive-grade alternatives.
Technical Context
This RET integrates a monolithic NPN transistor with two precision laser-trimmed resistors: R1 (22 kΩ) between base and input terminal, and R2 (22 kΩ) between base and emitter. Its internal structure eliminates external bias components while maintaining predictable VI(on) = 3 V (typ.) and VI(off) = 1.15 V (typ.) at VCE = 5 V.
The device operates within -55 °C to +150 °C ambient range, supports 250 mW power dissipation on single-layer FR4 PCBs, and achieves 170 MHz transition frequency (fT) at VCE = 5 V/IC = 10 mA - enabling reliable high-speed digital switching up to 10 MHz edge rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Withstands 80 V collector-emitter voltage before breakdown, enabling use in 24 V automotive supply rails with margin. |
| IO | 100 mA - Continuous output current capability supports driving LED indicators, small relays, or logic inputs without external current limiting. |
| R1, R2 | 22 kΩ each - Integrated bias network simplifies PCB layout by eliminating two external resistors and reducing pick-and-place steps. |
| VCE(sat) | 100 mV max at IC = 10 mA/IB = 0.5 mA - Ensures low conduction loss and minimal self-heating during sustained switching. |
| hFE | 70 min at VCE = 5 V/IC = 10 mA - Provides stable current amplification across industrial temperature range (-40 °C to +125 °C). |
| fT | 170 MHz - Supports fast digital switching with rise/fall times suitable for 1–5 MHz clocked control signals. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors, including temperature cycling and HTRB. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 1.9 mm × 1.1 mm footprint, 0.9 mm height, and gull-wing lead form compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base via R1) | Signal entry point connected internally to R1 (22 kΩ); accepts TTL/CMOS logic-level drive without external resistor. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common return path for load current and bias network. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode or relay coil) with 80 V blocking capability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | Eliminates need for two external 22 kΩ resistors, reducing BOM count and PCB area by ~2.5 mm² per instance. |
| Automotive qualification | AEC-Q101 compliance ensures reliability in under-hood applications including door modules and lighting controllers. |
| Low VCE(sat) | 100 mV max enables <1 mW conduction loss at 10 mA, minimizing thermal impact in dense layouts. |
| High VCEO | 80 V rating allows direct interface with 24 V systems (e.g., CAN transceiver enable lines) without level-shifting. |
| Thermal robustness | Rth(j-a) = 500 K/W on single-layer FR4 enables operation up to 125 °C ambient with 250 mW derated power. |
Applications
| Automotive Door Module Control | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Driving window lift motor enable signals and mirror fold/unfold commands in body control units. IC Role / Device Role / Timing Role: NPN switch controlling 12 V/50 mA solenoid drivers with TTL-compatible input threshold. Use Value: Eliminates discrete resistor network per channel, reducing component count by 2× and improving assembly yield. |
Use Scenario: Converting 24 V field sensor outputs to 3.3 V microcontroller GPIO inputs in factory automation I/O modules. IC Role / Device Role / Timing Role: Level-shifting and current-limiting interface with built-in hysteresis from resistor ratio. Use Value: VI(on) = 3 V and VI(off) = 1.15 V provide noise immunity against 24 V line transients without external Schmitt trigger. |
| LED Status Indicator Driver | Microcontroller GPIO Expander |
Use Scenario: Driving dual-color status LEDs on medical device front panels requiring low-power, high-reliability switching. IC Role / Device Role / Timing Role: Constant-current switch with 100 mA capability and 80 V isolation for shared-anode configurations. Use Value: 100 mV VCE(sat) ensures >98% LED forward voltage utilization at 20 mA, maximizing brightness efficiency. |
Use Scenario: Adding 8-bit parallel output capability to resource-constrained ARM Cortex-M0+ designs via shift-register cascading. IC Role / Device Role / Timing Role: Output buffer stage isolating MCU pins from capacitive loads of long PCB traces. Use Value: fT = 170 MHz supports clean 5 MHz SPI clock edges without signal integrity degradation. |
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 |
|---|---|---|---|
| ON Semiconductor NSS12201LT1G | R1 = 10 kΩ, R2 = 10 kΩ; hFE = 35 min; VCEO = 50 V | Limited to 50 V systems; lower gain requires higher drive current for same load current. | Select when cost sensitivity outweighs voltage margin and gain requirements in 12 V consumer applications. |
| ROHM UMT1N (UMT1N) | R1 = 47 kΩ, R2 = 47 kΩ; hFE = 100 min; VCEO = 80 V; SOT-323 package | Smaller footprint but lower power handling (150 mW); tighter resistor tolerance (±5%). | Choose for space-constrained designs where 100 mA peak current is sufficient and thermal budget permits smaller package. |
Compared with NSS12201LT1G, NHDTC124ETR offers 60% higher voltage margin and double the DC gain; versus UMT1N, it provides 67% higher power dissipation capacity and identical voltage rating in a more manufacturable SOT23 footprint.
Availability
NHDTC124ETR is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input conditioning, LED indicator driving, and microcontroller GPIO expansion requiring stable component supply across extended temperature ranges.
Supply support for NHDTC124ETR 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 logic, discrete, and MOSFET solutions for automotive, industrial, and mobile markets.
NHDTC124ETR belongs to Nexperia's AEC-Q101-qualified resistor-equipped transistor family, engineered specifically for automotive digital switching and industrial interface applications where reliability, space savings, and simplified design are critical.
FAQ
What is the maximum continuous collector current for NHDTC124ETR?
The maximum continuous collector current is 100 mA at Tamb ≤ 25 °C on a standard FR4 PCB with single-sided copper. Derating applies above 25 °C per Figure 1: at 100 °C ambient, maximum allowable current drops to approximately 65 mA to maintain junction temperature below 150 °C.
How does the integrated resistor network affect input drive requirements?
The 22 kΩ R1 resistor sets the input current to ~136 µA at 3 V logic high, eliminating need for external base resistors. VI(on) = 3 V (typ.) and VI(off) = 1.15 V (typ.) provide inherent hysteresis, allowing direct connection to 3.3 V or 5 V CMOS outputs without additional conditioning circuitry.
Is NHDTC124ETR suitable for PWM-driven loads?
Yes - with fT = 170 MHz and VCEsat = 100 mV, it supports PWM frequencies up to 5 MHz. For 100 kHz–1 MHz operation, ensure gate drive rise/fall times <100 ns and limit duty cycle to ≤80% to maintain average power below 250 mW on standard PCBs.
What is the thermal resistance from junction to solder point (Rth(j-sp))?
Rth(j-sp) is 130 K/W when mounted on a 4-layer FR4 PCB with tin-plated finish and standard SOT23 footprint. This value enables precise thermal modeling of solder joint temperature rise, critical for reliability validation in automotive under-hood environments.
NHDTC124ETR 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:
- 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:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
NHDTC124ETR FAQ
1.How can I place an order for NHDTC124ETR through Aetrix?
Please submit a Request for Quotation (RFQ) for NHDTC124ETR 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 NHDTC124ETR reliable?
The price and inventory of NHDTC124ETR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NHDTC124ETR is usually 5 days.
3.What payment methods are accepted for NHDTC124ETR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NHDTC124ETR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NHDTC124ETR?
NHDTC124ETR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NHDTC124ETR 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 NHDTC124ETR?
For technical support, including NHDTC124ETR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NHDTC124ETR requirements.
6.How does Aetrix verify that NHDTC124ETR is sourced from the original manufacturer or authorized distributors?
All NHDTC124ETR 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 NHDTC124ETR meets industry standards.
7.What is the process for return or replacement of NHDTC124ETR?
All NHDTC124ETR units undergo pre-shipment inspection (PSI). If there is an issue with NHDTC124ETR, 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 NHDTC124ETR part is unused and in its original packaging.
Return procedure for NHDTC124ETR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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