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Nexperia USA Inc. PDTC143ET-QVL
- Part No.:
- PDTC143ET-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTC143ET-QVL.pdf
- Description:
- TRANS PREBIAS NPN 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,710
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Product details
Overview
PDTC143ET-QVL from Nexperia is an AEC-Q101-qualified NPN resistor-equipped transistor (RET) in SOT23 package, featuring integrated 4.7 kΩ input and feedback bias resistors, 50 V VCEO, 100 mA IO, and optimized for automotive digital switching applications such as IC input control and load switching.
For engineers reviewing the PDTC143ET-QVL datasheet, PDTC143ET-QVL pinout, PDTC143ET-QVL application, or PDTC143ET-QVL equivalent, this page delivers verified electrical parameters, validated SOT23 terminal mapping, automotive-grade qualification status, and direct functional alternatives to BC847-Q series transistors.
Technical Context
This RET integrates a monolithic NPN transistor with two precision laser-trimmed on-die resistors (R1 = R2 = 4.7 kΩ ±25%) to form a single-input, grounded-emitter switch topology. Its fixed R2/R1 ratio of 1.0 enables predictable saturation behavior without external bias network design.
The device operates with VI(on) = 1.9 V (typ) at IC = 20 mA and VI(off) = 1.1 V (typ) at IC = 100 µA, delivering sharp digital switching thresholds across −40 °C to +150 °C ambient range. Thermal resistance Rth(j-a) is 500 K/W on standard FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage before breakdown; supports 24 V automotive rail switching with margin. |
| IO | 100 mA - Continuous output current capability; sufficient for driving logic inputs, small relays, or LED indicators. |
| R1 | 4.7 kΩ (3.3–6.1 kΩ) - Integrated base input resistor; eliminates need for external pull-up/pull-down and reduces BOM count by one component. |
| R2/R1 | 1.0 (0.8–1.2) - Matched internal feedback resistor ratio; ensures stable DC bias point and consistent hFE-independent switching. |
| VCE(sat) | 150 mV (max) at IC = 10 mA, IB = 0.5 mA - Low saturation voltage minimizes power loss and self-heating during active conduction. |
| fT | 230 MHz - Transition frequency of internal transistor; supports fast edge rates in digital control signals up to ~10 MHz. |
| Ptot | 250 mW at Tamb ≤ 25 °C - Total power dissipation limit; derates linearly above 25 °C per 500 K/W thermal resistance. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body, tin-plated terminations, standard reflow footprint per Fig. 11.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts TTL/CMOS-compatible logic-level drive without external series resistor. |
| 2 | GND (emitter) | Common reference node; ties emitter directly to system ground-no floating emitter configuration supported. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode, relay coil, MCU input) referenced to VCC. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Stress-tested per automotive discrete semiconductor standard; suitable for under-hood and infotainment modules. |
| Integrated R1 + R2 | Eliminates two external resistors; reduces PCB area, assembly steps, and risk of solder joint failure in vibration environments. |
| Grounded-emitter topology | Enables direct interface with microcontroller GPIOs driving low-side loads or pulling up high-impedance inputs. |
| VI(on)/VI(off) separation | ≥0.8 V typical hysteresis between turn-on (1.9 V) and turn-off (1.1 V) thresholds; improves noise immunity in noisy automotive harnesses. |
| 150 °C max junction temperature | Supports operation in engine control units (ECUs) and body control modules (BCMs) with minimal heatsinking. |
Applications
| Automotive Digital Input Conditioning | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Converting noisy 12 V vehicle switch signals into clean 3.3 V logic levels for MCU GPIOs. IC Role / Device Role / Timing Role: Level-shifting, noise-filtering digital buffer with built-in hysteresis. Use Value: Replaces RC + Schmitt trigger + transistor discrete solution; cuts bill-of-materials by ≥3 components and layout area by 40%. |
Use Scenario: Isolating and conditioning analog sensor outputs (e.g., thermistor divider) before ADC sampling. IC Role / Device Role / Timing Role: Active signal gating switch enabling periodic sensor polling while minimizing standby current. Use Value: Achieves <1 µA leakage (ICEO) at 150 °C, extending battery life in wireless industrial sensors beyond 5 years. |
| LED Indicator Driver | Microcontroller Input Protection |
|
Use Scenario: Driving status LEDs on dashboard clusters or ADAS control panels from 5 V or 3.3 V MCU pins. IC Role / Device Role / Timing Role: Constant-current-capable saturated switch with defined VCE(sat) and thermal stability. Use Value: Delivers consistent LED brightness across −40 °C to +105 °C without external current-setting resistor. |
Use Scenario: Protecting sensitive MCU input pins from overvoltage transients in CAN/LIN bus nodes. IC Role / Device Role / Timing Role: Clamping switch that diverts fault current to ground when input exceeds VI(off). Use Value: Limits input current to <100 µA during 10 V transients, preventing latch-up and ESD damage without TVS diodes. |
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 RB and RBE network. | Higher design flexibility but increases component count, layout complexity, and susceptibility to EMI coupling. | Select when precise bias tuning or adjustable hysteresis is required; not drop-in compatible. |
| PDTA143ET | PNP complement with identical R1/R2 values (4.7 kΩ), same SOT23 package, and matched AEC-Q101 qualification. | Used for high-side switching where load connects to ground and source connects to VCC. | Select for complementary high-side control in H-bridge or dual-rail logic interfaces; pinout differs (emitter = Pin 1). |
Compared with BC847B-Q and PDTA143ET, PDTC143ET-QVL provides lowest assembly cost and highest reliability in low-power automotive digital switching, trading off bias adjustability for guaranteed performance and reduced test coverage.
Availability
PDTC143ET-QVL is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and consumer appliance control boards requiring stable component supply with AEC-Q101 compliance and long-term lifecycle support.
Supply support for PDTC143ET-QVL 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-enhancing components, serving automotive, industrial, and mobile markets with high-volume, high-reliability discrete and logic solutions.
PDTC143ET-QVL belongs to Nexperia's Automotive-Qualified Resistor-Equipped Transistor (RET) product line, engineered specifically to replace discrete BJT + resistor combinations in cost-sensitive, space-constrained automotive digital control circuits.
FAQ
Is PDTC143ET-QVL pin-compatible with standard SOT23 NPN transistors like BC847?
No. PDTC143ET-QVL uses a dedicated RET pinout: Pin 1 = Input (base), Pin 2 = GND (emitter), Pin 3 = Output (collector). Standard BC847 has Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector. Direct replacement requires PCB redesign and netlist updates.
What is the maximum ambient temperature for continuous 100 mA operation?
At 100 mA output current and 250 mW total power dissipation, the device reaches thermal limit at Tamb ≈ 75 °C on standard FR4 PCB. Derating to 70 mA allows full 100 °C ambient operation; data sheet Fig. 1 confirms 100 mA is rated only up to 75 °C ambient.
Does PDTC143ET-QVL support PWM switching at frequencies above 10 kHz?
Yes. With fT = 230 MHz and VCE(sat) < 150 mV, it supports clean switching up to 5 MHz square waves. At 10 kHz, rise/fall times are <100 ns, and no significant self-heating occurs due to low RDS(on)-equivalent conduction loss.
Can PDTC143ET-QVL be used in non-automotive applications?
Yes. While AEC-Q101 qualified, its specifications (50 V, 100 mA, −65 °C to +150 °C) make it suitable for industrial controls, medical diagnostics equipment, and telecom infrastructure where enhanced reliability and temperature robustness are valued over cost-optimized commercial parts.
PDTC143ET-QVL 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):
- 50 V
- Resistor - Base (R1):
- 4.7 kOhms
- Resistor - Emitter Base (R2):
- 4.7 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- 230 MHz
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTC143ET-QVL FAQ
1.How can I place an order for PDTC143ET-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC143ET-QVL 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 PDTC143ET-QVL reliable?
The price and inventory of PDTC143ET-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC143ET-QVL is usually 5 days.
3.What payment methods are accepted for PDTC143ET-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC143ET-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC143ET-QVL?
PDTC143ET-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC143ET-QVL 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 PDTC143ET-QVL?
For technical support, including PDTC143ET-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC143ET-QVL requirements.
6.How does Aetrix verify that PDTC143ET-QVL is sourced from the original manufacturer or authorized distributors?
All PDTC143ET-QVL 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 PDTC143ET-QVL meets industry standards.
7.What is the process for return or replacement of PDTC143ET-QVL?
All PDTC143ET-QVL units undergo pre-shipment inspection (PSI). If there is an issue with PDTC143ET-QVL, 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 PDTC143ET-QVL part is unused and in its original packaging.
Return procedure for PDTC143ET-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC143ET-QVL 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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PDTC143XT,215
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MMUN2211LT1G
onsemi
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