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Nexperia USA Inc. PDTC143ZU-QX
- Part No.:
- PDTC143ZU-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTC143ZU-QX.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:4,009
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Product details
Overview
PDTC143ZU-Q from Nexperia is an AEC-Q101-qualified NPN resistor-equipped transistor (RET) in SOT323 (SC-70) package, featuring integrated bias resistors R1 = 4.7 kΩ and R2 = 47 kΩ, 50 V VCEO, 100 mA IO, and optimized for digital switching in automotive control modules.
For engineers reviewing the PDTC143ZU-Q datasheet, PDTC143ZU-Q pinout, PDTC143ZU-Q application, or PDTC143ZU-Q equivalent, this part serves as a drop-in replacement for BC847-Q series transistors in load-switching and IC-input control circuits where space, BOM count, and automotive qualification are critical.
Technical Context
This RET integrates a monolithic NPN transistor with two precision on-die bias resistors-R1 connected between base and input, R2 between base and emitter-enabling single-resistor drive logic-level interfacing without external bias networks. It operates with VI(on) ≤ 0.9 V at IC = 5 mA and VI(off) ≥ 0.6 V at IC = 100 µA.
The device delivers hFE ≥ 100 at VCE = 5 V, IC = 10 mA, and maintains VCE(sat) ≤ 100 mV under same conditions. Its fT = 230 MHz (typ.) supports high-speed digital switching up to ~10 MHz edge rates in automotive body electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V automotive systems with margin. |
| IO | 100 mA - Continuous output current rating; sufficient for driving LEDs, small relays, and logic inputs. |
| R1 | 4.7 kΩ - Input bias resistor value; sets base current for direct TTL/CMOS logic-level drive without external components. |
| R2/R1 ratio | 10 - Ensures stable saturation and prevents thermal runaway by fixing base-emitter feedback ratio. |
| VCE(sat) | ≤100 mV at IC = 5 mA, IB = 0.25 mA - Low saturation voltage minimizes power loss and heat generation in switching mode. |
| fT | 230 MHz - Transition frequency of internal transistor; supports fast digital switching with <10 ns rise/fall times. |
| hFE | ≥100 at VCE = 5 V, IC = 10 mA - DC current gain ensures reliable saturation with low drive current. |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package: 3-pin, 1.3 mm pitch, 2.0 mm × 1.25 mm × 0.95 mm body, FR4 PCB mountable with standard reflow footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base via R1) | Logic-level signal entry point; internally connected to R1 (4.7 kΩ), enabling direct microcontroller GPIO drive. |
| 2 | Ground (emitter) | Emitter terminal tied to system ground; provides return path for load current and R2 feedback network. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode, relay coil) with common-emitter configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 + R2 bias network | Eliminates 2 external resistors per switch channel, reducing PCB area and assembly cost in multi-channel modules. |
| AEC-Q101 qualification | Validated for automotive underhood and cabin applications including temperature cycling, humidity, and mechanical shock. |
| Low VI(on) / VI(off) thresholds | 0.9 V on-state and 0.6 V off-state voltages ensure robust noise immunity and compatibility with 3.3 V and 5 V logic families. |
| 200 mW Ptot at Tamb = 25 °C | Enables continuous 100 mA switching at ambient temperatures up to 85 °C with standard FR4 layout and no heatsink. |
Applications
| Automotive Door Module Control | Industrial PLC Digital Output Stage |
|---|---|
|
Use Scenario: Switching window lift motors, mirror actuators, and interior lighting in vehicle door modules. IC Role / Device Role / Timing Role: NPN RET acts as a logic-controlled load switch, interfacing MCU GPIOs to 12 V inductive/resistive loads. Use Value: Reduces component count vs discrete BJT + bias resistors, improves board-level reliability, and meets AEC-Q101 requirements out-of-box. |
Use Scenario: Driving 24 V solenoids, indicator LEDs, and optocoupler inputs in industrial programmable logic controller outputs. IC Role / Device Role / Timing Role: Digital output buffer with built-in current limiting and saturation assurance for deterministic on/off timing. Use Value: Enables compact 16-channel output cards with consistent turn-on delay (<100 ns) and minimal layout sensitivity. |
| Cost-Sensitive Consumer Appliance UI | Automotive Body Control Unit (BCU) |
|
Use Scenario: Replacing BC847-Q transistors in washing machine control panels for LED backlight and buzzer drivers. IC Role / Device Role / Timing Role: Single-component digital switch replacing legacy BJT + dual-resistor solution in high-volume white goods. Use Value: Cuts BOM cost by $0.012/unit and reduces pick-and-place cycle time by eliminating two passive placements per channel. |
Use Scenario: Controlling trunk release solenoids, seat position sensors, and HVAC damper actuators in centralized BCU designs. IC Role / Device Role / Timing Role: Automotive-grade RET providing fault-tolerant switching with built-in base-emitter feedback for latch-up prevention. Use Value: Eliminates need for external base pull-down resistors, improving ESD robustness and simplifying ISO 16750-2 compliance testing. |
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 |
|---|---|---|---|
| BC847B-Q | Discrete NPN BJT without integrated resistors; requires external R1/R2 network (typically 4.7 kΩ + 47 kΩ). | Same switching function but higher BOM count and layout sensitivity; lacks AEC-Q101 certification out-of-box. | Select when existing design uses discrete biasing and qualification testing is already complete. |
| PDTA143ZU-Q | PNP counterpart with identical R1/R2 values, VCEO = 50 V, IO = −100 mA, and matching SOT323 footprint. | Used for high-side switching or complementary logic stages; not interchangeable without circuit topology change. | Select for complementary pair implementation or inverted logic interface in same PCB footprint. |
Compared with BC847B-Q, PDTC143ZU-Q reduces assembly steps and improves thermal stability via monolithic resistor matching; versus PDTA143ZU-Q, it provides NPN polarity for low-side switching without level-shifting overhead.
Availability
PDTC143ZU-Q is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC output stages, and consumer appliance UI controls requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PDTC143ZU-Q 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 for automotive, industrial, and consumer markets.
PDTC143ZU-Q belongs to Nexperia's AEC-Q101-qualified Resistor-Equipped Transistor (RET) family, engineered to replace discrete BJT + bias resistor combinations in space-constrained, cost-sensitive digital switching applications.
FAQ
What is the maximum operating temperature for PDTC143ZU-Q?
The junction temperature limit is 150 °C, and the ambient operating range is −65 °C to +150 °C. Derated power dissipation begins at Tamb > 25 °C, reaching 0 mW at 150 °C per the FR4 PCB derating curve (Fig. 1). Thermal resistance Rth(j-a) is 625 K/W under standard mounting conditions.
Can PDTC143ZU-Q be used with 3.3 V microcontrollers?
Yes. VI(on) is guaranteed ≤ 0.9 V at IC = 5 mA, ensuring reliable turn-on with 3.3 V GPIOs even under worst-case process and temperature variation. VI(off) ≥ 0.6 V provides adequate noise margin against logic-low leakage in mixed-voltage systems.
Is PDTC143ZU-Q pin-compatible with BC847B-Q?
No. While both use SOT323 packages, PDTC143ZU-Q has dedicated input (pin 1), ground (pin 2), and output (pin 3) terminals with internal resistor routing; BC847B-Q uses standard B-C-E pinout (1=E, 2=B, 3=C). Direct replacement requires PCB redesign.
Does PDTC143ZU-Q require external base resistors?
No. R1 = 4.7 kΩ and R2 = 47 kΩ are monolithically integrated. The device is designed for direct connection between logic source and pin 1, load between pin 3 and supply rail, and pin 2 to ground-no external bias components needed.
PDTC143ZU-QX 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):
- 50 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 @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- 230 MHz
- Power - Max:
- 200 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTC143ZU-QX FAQ
1.How can I place an order for PDTC143ZU-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC143ZU-QX 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 PDTC143ZU-QX reliable?
The price and inventory of PDTC143ZU-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC143ZU-QX is usually 5 days.
3.What payment methods are accepted for PDTC143ZU-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC143ZU-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC143ZU-QX?
PDTC143ZU-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC143ZU-QX 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 PDTC143ZU-QX?
For technical support, including PDTC143ZU-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC143ZU-QX requirements.
6.How does Aetrix verify that PDTC143ZU-QX is sourced from the original manufacturer or authorized distributors?
All PDTC143ZU-QX 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 PDTC143ZU-QX meets industry standards.
7.What is the process for return or replacement of PDTC143ZU-QX?
All PDTC143ZU-QX units undergo pre-shipment inspection (PSI). If there is an issue with PDTC143ZU-QX, 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 PDTC143ZU-QX part is unused and in its original packaging.
Return procedure for PDTC143ZU-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC143ZU-QX 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
Nexperia USA Inc.
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PDTC143ZT,215
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PDTC143ET,215
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MMUN2211LT1G
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