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Nexperia USA Inc. NHDTC144EUF
- Part No.:
- NHDTC144EUF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
NHDTC144EUF.pdf
- Description:
- TRANS PREBIAS NPN 80V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:3,166
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Product details
Overview
NHDTC144EUF 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 with built-in 47 kΩ input and feedback bias resistors. It delivers 100 mA output current, supports up to 80 V collector-emitter breakdown voltage, and features 100 hFE at 10 mA/5 V - enabling direct replacement of discrete BJT + resistor networks in space-constrained digital logic interfaces.
For engineers reviewing the NHDTC144EUF datasheet, NHDTC144EUF pinout, NHDTC144EUF application, or NHDTC144EUF equivalent, this part serves as a drop-in solution for load switching, microcontroller GPIO interfacing, and level translation where simplified biasing, reduced PCB area, and AEC-Q101 heritage (per prior revision) are critical selection criteria.
Technical Context
This NPN RET integrates two precision-matched on-die resistors (R1 = 47 kΩ, R2/R1 = 1.0) to form a fixed-current bias network that eliminates external base resistors. Its internal transistor exhibits 170 MHz transition frequency and 2.5 pF collector capacitance, supporting fast digital switching up to ~10 MHz with low propagation delay.
The device operates across −55 °C to +150 °C ambient, with thermal resistance of 397 K/W (4-layer PCB) and 532 K/W (single-sided FR4), enabling reliable performance in thermally constrained industrial and automotive-adjacent environments without forced cooling.
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 bus interfaces. |
| IO | 100 mA - Continuous DC output current capability; sufficient to drive LEDs, small relays, or logic inputs directly. |
| hFE | 100 (min) at VCE = 5 V, IC = 10 mA - Ensures robust saturation with low base drive current (e.g., 0.1 mA base yields 10 mA collector). |
| VCE(sat) | 100 mV (max) at IC = 10 mA, IB = 0.5 mA - Minimizes conduction loss and self-heating in high-duty-cycle switching. |
| R1 | 47 kΩ ±30% - Integrated input bias resistor; sets base current without external components, reducing BOM count by one. |
| R2/R1 | 1.0 (typical) - Matches emitter feedback ratio for stable DC bias point and improved temperature stability vs. single-resistor bias. |
| fT | 170 MHz - Transition frequency of internal transistor; supports clean edge integrity in <100 ns pulse applications. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 1.35 mm × 1.15 mm × 0.45 mm body, 3-terminal leadframe, optimized for reflow soldering per IPC-7351B footprint (sot323_fr).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts TTL/CMOS logic-level drive (VI(on) = 3.3–5.0 V) without external series resistor. |
| 2 | GND (emitter) | Emitter tied to system ground; provides return path for both input and output currents; common reference for bias network. |
| 3 | Output (collector) | Switched high-side output node; sinks up to 100 mA; requires external pull-up or load connection to positive rail. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual-resistor bias network | Eliminates need for two external resistors, reducing layout area by ≥1.5 mm² and eliminating resistor placement error risk. |
| 80 V VCEO rating | Supports operation in 24 V and 48 V systems with 2× safety margin, avoiding overvoltage failure in transient-prone industrial lines. |
| 100 mA continuous output | Drives standard logic inputs, optocouplers, or small solenoids without external buffer stages, simplifying gate-drive chains. |
| SC-70 footprint compatibility | Matches industry-standard SOT323 land pattern (2.65 mm × 2.35 mm), enabling drop-in replacement in existing high-density layouts. |
| −55 °C to +150 °C operating range | Validated for under-hood and industrial control cabinet use; junction temperature limit ensures reliability at full rated current up to 100 °C ambient. |
Applications
| Microcontroller GPIO Interface | Industrial Digital Input Conditioning |
|---|---|
|
Use Scenario: Driving LED indicators or enabling/disabling peripheral ICs from 3.3 V or 5 V MCU pins. IC Role / Device Role / Timing Role: Acts as a level-shifting, current-amplifying switch between low-drive GPIO and higher-current loads. Use Value: Eliminates need for discrete base resistor and reduces total component count by one per channel, improving assembly yield. |
Use Scenario: Converting 24 V field signals into clean 0/5 V logic levels for PLC or sensor interface ASICs. IC Role / Device Role / Timing Role: Functions as a ruggedized input stage with built-in voltage limiting and noise immunity via resistor network. Use Value: Withstands 80 V transients and provides predictable VI(off) > 1.15 V, preventing false triggering in noisy factory environments. |
| Low-Power Load Switching | Cost-Optimized BC846 Replacement |
|
Use Scenario: Controlling small solenoids, buzzers, or relay coils in battery-powered portable equipment. IC Role / Device Role / Timing Role: Provides low-saturation switching with minimal quiescent current (<100 nA ICEO) during off-state. Use Value: VCE(sat) ≤ 100 mV at 10 mA cuts conduction loss by >50% vs. BC846, extending battery life in always-on monitoring nodes. |
Use Scenario: Replacing BC846B in legacy digital logic boards where board space and assembly cost are critical. IC Role / Device Role / Timing Role: Direct functional substitute with identical SOT323 footprint and compatible pinout (1=base, 2=emitter, 3=collector). Use Value: Reduces total BOM cost by consolidating two passives into one active part while maintaining timing performance (ton/toff < 100 ns). |
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 | No integrated resistors; requires external 47 kΩ base resistor and optional emitter feedback; hFE = 200–450 (wider spread). | Higher gain variability and additional placement step increase test complexity and long-term drift risk in high-volume production. | Select when precise hFE control or ultra-low leakage (<10 nA ICEO) is required; not recommended for space-constrained or high-reliability designs. |
| NHDTC124EU | Lower R1/R2 = 22 kΩ; VI(on) = 2.3–3.0 V; hFE = 70 (min); same package and pinout. | Better suited for 3.3 V logic systems with marginal drive strength; lower input threshold improves noise margin in mixed-voltage boards. | Choose for 3.3 V MCU interfaces where NHDTC144EU's 3.3–5.0 V VI(on) may cause marginal turn-on; retains all RET benefits. |
Compared with BC846B, NHDTC144EUF reduces component count and layout area but trades off hFE variability control; versus NHDTC124EU, it offers higher input threshold and better noise immunity at 5 V, making it optimal for legacy 5 V digital systems requiring robust switching.
Availability
NHDTC144EUF is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and consumer appliance control modules requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for NHDTC144EUF 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, with leadership in logic, discrete, and MOSFET technologies for automotive, industrial, and mobile markets.
NHDTC144EUF belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered to simplify digital interface design by integrating biasing circuitry into miniature SOT323 packages for cost-sensitive, space-constrained applications.
FAQ
What is the maximum allowable input voltage (VI) for NHDTC144EUF?
The absolute maximum input voltage is +80 V, but the specified operational VI(on) range is 3.3–5.0 V at IC = 10 mA and VCE = 0.3 V. Exceeding +80 V risks permanent damage to the internal R1 resistor and transistor junction. For sustained 5 V logic drive, no external clamping is needed due to built-in resistor current limiting.
Can NHDTC144EUF replace BC846B in existing PCB layouts?
Yes - NHDTC144EUF uses the identical SOT323 (SC-70) package and pinout (1=base/input, 2=emitter/GND, 3=collector/output), enabling direct footprint replacement. However, because it integrates bias resistors, remove the external base resistor during redesign; verify VI(on) compatibility with your driver's output voltage swing.
Is NHDTC144EUF qualified for automotive applications?
No - per Revision 2 (October 2025) of the datasheet, NHDTC144EUF has been explicitly removed from AEC-Q101 qualification. The revision history states "NHDTC144EU changed to non-automotive qualification" and directs users to Nexperia's dedicated -Q automotive RET variants for qualified applications.
What is the thermal derating behavior above 25 °C ambient?
On a 4-layer FR4 PCB, total power dissipation derates linearly from 315 mW at 25 °C to 0 mW at 150 °C, yielding a derating factor of 2.36 mW/°C. At 85 °C ambient, max allowable Ptot is ~175 mW - sufficient for 100 mA switching at VCE(sat) = 100 mV (10 mW), leaving ample thermal margin.
NHDTC144EUF 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):
- 47 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 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
NHDTC144EUF FAQ
1.How can I place an order for NHDTC144EUF through Aetrix?
Please submit a Request for Quotation (RFQ) for NHDTC144EUF 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 NHDTC144EUF reliable?
The price and inventory of NHDTC144EUF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NHDTC144EUF is usually 5 days.
3.What payment methods are accepted for NHDTC144EUF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NHDTC144EUF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NHDTC144EUF?
NHDTC144EUF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NHDTC144EUF 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 NHDTC144EUF?
For technical support, including NHDTC144EUF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NHDTC144EUF requirements.
6.How does Aetrix verify that NHDTC144EUF is sourced from the original manufacturer or authorized distributors?
All NHDTC144EUF 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 NHDTC144EUF meets industry standards.
7.What is the process for return or replacement of NHDTC144EUF?
All NHDTC144EUF units undergo pre-shipment inspection (PSI). If there is an issue with NHDTC144EUF, 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 NHDTC144EUF part is unused and in its original packaging.
Return procedure for NHDTC144EUF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NHDTC144EUF Tags
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MUN5211T1G
onsemi
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DTC043ZEBTL
Rohm Semiconductor
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DTC114EKAT146
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DDTD113ZC-7-F
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DRDNB16W-7
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PDTC114ET,215
Nexperia USA Inc.
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PDTC143ZT,215
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PDTC143ET,215
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PDTC143XT,215
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MMUN2211LT1G
onsemi
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PDTC144ET,215
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