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Nexperia USA Inc. NHDTC143ZUF
- Part No.:
- NHDTC143ZUF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
NHDTC143ZUF.pdf
- Description:
- TRANS PREBIAS NPN 80V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:19,076
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Product details
Overview
NHDTC143ZUF from Nexperia is an 80 V, 100 mA NPN resistor-equipped transistor (RET) in SOT323 (SC-70) package, integrating 4.7 kΩ input bias resistor (R1) and 47 kΩ feedback resistor (R2/R1 = 10), designed for digital switching and IC input control with AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the NHDTC143ZUF datasheet, NHDTC143ZUF pinout, NHDTC143ZUF application, or NHDTC143ZUF equivalent, this device serves as a drop-in replacement for BC846-series transistors in low-power digital logic interfaces, offering simplified biasing, reduced BOM count, and validated thermal performance on FR4 PCBs.
Technical Context
This RET integrates a monolithic NPN transistor with two precision thin-film resistors-R1 (4.7 kΩ) connected between base and input, and R2 (47 kΩ) from base to emitter-to enable single-resistor drive operation without external bias networks. It operates with VI(on) = 0.95 V (typ) at IC = 10 mA and VI(off) = 0.625 V (typ) at IC = 100 μA, ensuring robust noise immunity in 3.3 V and 5 V logic systems.
The device delivers hFE ≥ 100 at VCE = 5 V, IC = 10 mA, and maintains VCE(sat) ≤ 100 mV under IC/IB = 20, supporting efficient low-side switching up to 100 mA. Its 80 V VCEO rating and 150 °C max junction temperature support use in automotive body electronics and industrial control I/O stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Enables safe operation in 24 V automotive and industrial supply rails with margin against transients. |
| IO | 100 mA - Supports direct driving of LEDs, small relays, and logic inputs without external current amplification. |
| R1 | 4.7 kΩ - Sets base current for predictable turn-on with standard CMOS/TTL output levels (e.g., 3.3 V GPIO). |
| R2/R1 | 10 - Provides stable bias network ratio for consistent saturation and improved temperature stability vs. discrete bias. |
| VCE(sat) | ≤100 mV at IC = 10 mA, IB = 0.5 mA - Minimizes conduction loss and self-heating in high-duty-cycle switching. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control modules, lighting, and body controllers. |
| Ptot | 315 mW on 4-layer FR4 - Enables reliable operation in compact PCB layouts without forced cooling. |
| fT | 170 MHz - Supports fast digital switching up to ~10 MHz with minimal propagation delay. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 1.3 mm × 2.2 mm × 0.95 mm profile, 3-terminal lead frame with gull-wing leads, optimized for reflow soldering per IPC-7095.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Accepts logic-level drive signal; internal R1 connects here to base, enabling single-wire control. |
| 2 | GND (emitter) | Common reference node for input and output circuits; tied directly to system ground plane for low-noise operation. |
| 3 | Output (collector) | Switches load to VCC; supports sinking up to 100 mA with <100 mV saturation voltage. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 + R2 bias network | Eliminates need for two external resistors, reducing PCB area by >0.8 mm² and assembly cost per unit. |
| Single-pin input control | Enables direct connection to microcontroller GPIO without pull-up/pull-down or level-shifting components. |
| 80 V breakdown rating | Withstands load-dump transients up to ISO 7637-2 Pulse 1 (−100 V/100 ms) when used with clamping diode. |
| Low VI(off) threshold | 0.625 V (typ) ensures reliable turn-off with 1.8 V logic families and mitigates false triggering from EMI. |
| Thermal resistance Rth(j-sp) | 150 K/W - Enables rapid heat transfer to PCB copper, supporting continuous 100 mA operation on 2 oz Cu layers. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input Stage |
|---|---|
Use Scenario: Switching door lock actuators and interior lighting loads in 12 V/24 V vehicle architectures. IC Role / Device Role / Timing Role: Low-side switch controlled by MCU GPIO, handling 50–100 mA inductive loads with flyback protection. Use Value: AEC-Q101 qualification and 80 V VCEO ensure compliance with automotive transient standards (ISO 16750-2), eliminating need for external TVS in many cases. |
Use Scenario: Level-shifting and isolation of 24 V field sensor signals into 3.3 V FPGA or ARM-based controller inputs. IC Role / Device Role / Timing Role: Digital interface buffer providing current-limited, noise-immune signal conditioning with <10 ns propagation delay. Use Value: Built-in R1/R2 network enables direct connection to 24 V sensors without external voltage divider, reducing component count by 2 and improving long-term drift stability. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Equipment I/O Isolation |
Use Scenario: Enabling/disabling auxiliary power rails (e.g., display backlight, fan control) in smart home hubs and HVAC controllers. IC Role / Device Role / Timing Role: High-side or low-side enable switch driven by PMIC or microcontroller, operating at 10–100 kHz PWM frequencies. Use Value: 170 MHz fT and low Cc (2.5 pF) minimize switching distortion and EMI during PWM dimming, meeting CISPR-32 Class B limits. |
Use Scenario: Galvanically isolated signal routing between patient-connected analog front-end and digital processing subsystems. IC Role / Device Role / Timing Role: Logic-level translator and current limiter for optocoupler LED drive or isolated ADC trigger lines. Use Value: Guaranteed VI(off) ≤ 0.625 V prevents unintended activation during power-up sequencing, critical for fail-safe diagnostic state machines. |
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 with no integrated resistors; requires external R1/R2 network (≥2 extra passives). | Higher BOM count and layout area; less immune to layout-induced noise due to floating base node. | Select when fine-tuned biasing or adjustable gain is required; not recommended for space-constrained automotive modules. |
| DTC143ZU,215 | Same R1/R2 values (4.7 kΩ/47 kΩ) and SOT323 package but lacks AEC-Q101 qualification and has lower Ptot (235 mW). | Not approved for automotive use; limited to commercial/industrial environments with ambient <85 °C. | Choose for cost-sensitive consumer applications where automotive qualification is unnecessary and thermal headroom is sufficient. |
Compared with BC846B,115, NHDTC143ZUF reduces design complexity and improves production yield via integrated biasing; versus DTC143ZU,215, it adds automotive qualification and 34% higher power dissipation capability for sustained 100 mA operation.
Availability
NHDTC143ZUF is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for NHDTC143ZUF 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 energy-efficient solutions.
NHDTC143ZUF belongs to Nexperia's resistor-equipped transistor (RET) family, engineered specifically to replace discrete BJT + resistor combinations in cost- and space-sensitive digital interface applications across automotive and industrial markets.
FAQ
What is the maximum continuous collector current for NHDTC143ZUF?
The absolute maximum continuous collector current is 100 mA under conditions defined in Table 6 of the datasheet, with derating applied above Tamb = 25 °C. At 100 °C ambient, usable current drops to approximately 65 mA on a 4-layer FR4 PCB, based on the 315 mW total power dissipation limit and thermal resistance of 397 K/W.
Can NHDTC143ZUF be used as a high-side switch?
No - NHDTC143ZUF is an NPN RET configured for low-side switching only, with emitter tied internally to Pin 2 (GND). Its architecture does not support emitter-follower or high-side configurations; for high-side control, a PNP RET like NHDTA143ZU or a dedicated high-side driver IC is required.
How does the built-in R2 resistor improve noise immunity?
The 47 kΩ R2 resistor from base to emitter provides active pull-down of the base node during signal transitions and idle states, reducing susceptibility to EMI-induced false triggering. Measured VI(off) of 0.625 V (typ) at IC = 100 μA confirms effective suppression of leakage-induced turn-on, especially critical in noisy automotive harness environments.
Is NHDTC143ZUF compatible with lead-free reflow profiles?
Yes - the SOT323 package is qualified for standard lead-free reflow per J-STD-020, with peak temperature tolerance up to 260 °C for 30 seconds. The recommended footprint (Fig. 25) uses 0.55 mm solder paste pads and 0.6 mm solder lands, ensuring reliable joint formation without tombstoning or voiding on 6–8 mil FR4 boards.
NHDTC143ZUF 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):
- 4.7 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
NHDTC143ZUF FAQ
1.How can I place an order for NHDTC143ZUF through Aetrix?
Please submit a Request for Quotation (RFQ) for NHDTC143ZUF 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 NHDTC143ZUF reliable?
The price and inventory of NHDTC143ZUF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NHDTC143ZUF is usually 5 days.
3.What payment methods are accepted for NHDTC143ZUF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NHDTC143ZUF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NHDTC143ZUF?
NHDTC143ZUF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NHDTC143ZUF 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 NHDTC143ZUF?
For technical support, including NHDTC143ZUF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NHDTC143ZUF requirements.
6.How does Aetrix verify that NHDTC143ZUF is sourced from the original manufacturer or authorized distributors?
All NHDTC143ZUF 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 NHDTC143ZUF meets industry standards.
7.What is the process for return or replacement of NHDTC143ZUF?
All NHDTC143ZUF units undergo pre-shipment inspection (PSI). If there is an issue with NHDTC143ZUF, 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 NHDTC143ZUF part is unused and in its original packaging.
Return procedure for NHDTC143ZUF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NHDTC143ZUF Tags
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MUN5211T1G
onsemi
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DTC043ZEBTL
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DTC114EKAT146
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DDTD113ZC-7-F
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DRDNB16W-7
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PDTC114ET,215
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PDTC143ET,215
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PDTC143XT,215
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MMUN2211LT1G
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