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Nexperia USA Inc. PDTC143EQAZ
- Part No.:
- PDTC143EQAZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTC143EQAZ.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.1A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
PDTC143EQAZ from Nexperia is a 50 V, 100 mA NPN resistor-equipped transistor (RET) in a DFN1010D-3 (SOT1215) package, integrating 4.7 kΩ input and 4.7 kΩ base-emitter bias resistors. It functions as a digital switch for IC input control and load switching in space-constrained automotive and industrial PCBs, with AEC-Q101 qualification and 0.37 mm profile.
For engineers reviewing the PDTC143EQAZ datasheet, PDTC143EQAZ pinout, PDTC143EQAZ application, or PDTC143EQAZ equivalent, this device serves as a compact, AOI-compatible alternative to BC847-series transistors-offering reduced component count, simplified layout, and verified thermal performance on 4-layer FR4 boards.
Technical Context
This RET integrates two precision silicon resistors (R1 = R2 = 4.7 kΩ ±25%) directly into the NPN die structure, eliminating external bias components while maintaining DC current gain (hFE ≥30 at IC = 10 mA, VCE = 5 V). Its internal topology enables direct logic-level drive without pull-up/down networks.
The device operates within −55 °C to +150 °C ambient range, supports 100 mA continuous output current, and delivers 150 mV max VCEsat at IC = 10 mA/IB = 0.5 mA-enabling efficient low-voltage switching in battery-powered and automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V automotive and industrial power rails. |
| IO | 100 mA - Continuous output current rating; sufficient for driving LEDs, relays, and logic inputs without heatsinking. |
| R1 / R2 | 4.7 kΩ / 4.7 kΩ - Integrated base bias resistors eliminate external components and reduce PCB footprint by ~3 mm² per switch. |
| VCE(sat) | 150 mV max at IC = 10 mA - Low saturation voltage minimizes conduction loss and self-heating in high-duty-cycle applications. |
| Package | DFN1010D-3 (SOT1215) - 1.1 × 1.0 × 0.37 mm ultra-thin leadless package with solderable side pads for AOI-compatible reflow assembly. |
| AEC-Q101 | Qualified - Meets stress test requirements for discrete semiconductors in automotive environments, including temperature cycling and HTRB. |
Pinout & Package
DFN1010D-3 (SOT1215) is a 3-terminal, leadless, thermally enhanced ultra-thin plastic package with visible and solderable side pads. Body dimensions: 1.1 mm × 1.0 mm × 0.37 mm; pin pitch: 0.35 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Accepts logic-level drive; internally connected to R1 and R2 network-no external base resistor required. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; provides return path for switched load current and bias network. |
| 3 & 4 | Output (collector) | Parallel collector terminals increase current handling and thermal dissipation; both must be soldered to PCB copper pour. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | Eliminates 2 external SMD resistors per switch, reducing BOM count and placement cost in high-density digital I/O designs. |
| Ultra-low profile | 0.37 mm height enables use under shields or in stacked modules where Z-axis clearance is limited to <0.4 mm. |
| AEC-Q101 qualification | Validated for automotive under-hood and infotainment applications requiring extended temperature operation and reliability testing. |
| AOI-compatible side pads | Visible solderable terminals allow automated optical inspection of solder joints-critical for zero-defect manufacturing in Tier-1 supply chains. |
Applications
| Automotive LED Lighting Control | Industrial PLC Digital Input Conditioning |
|---|---|
Use Scenario: Switching 12 V LED strings in headlamp or interior lighting modules with microcontroller GPIO. IC Role / Device Role / Timing Role: NPN switch translating 3.3 V logic to 12 V load control; operates in saturation mode with <1 µs turn-on delay. Use Value: Eliminates discrete base resistor and reduces board area by 2.5 mm² per channel versus BC847B + 2×0402 resistors. |
Use Scenario: Level-shifting and current-limiting 24 V field signals into 5 V/3.3 V PLC input ASICs. IC Role / Device Role / Timing Role: Input protection and signal conditioning stage; handles transient surges up to 50 V with built-in clamping via R2. Use Value: Replaces 3-component solution (transistor + two resistors) with single AEC-Q101-qualified device-reducing test points and assembly steps. |
| Consumer Appliance Motor Driver Interface | Medical Diagnostic Equipment Signal Isolation |
Use Scenario: Enabling small brushed DC motors in smart home appliances using MCU PWM outputs. IC Role / Device Role / Timing Role: Low-side switch controlling motor current up to 100 mA; supports 20 kHz PWM without significant switching loss. Use Value: 150 mV VCE(sat) limits power dissipation to <1.5 mW at 10 mA, enabling fan-out to 8+ channels on a single 0.5 W thermal budget. |
Use Scenario: Galvanically isolating sensor analog outputs in portable diagnostic devices before ADC sampling. IC Role / Device Role / Timing Role: Digital enable gate for optocoupler bias circuitry; ensures precise timing alignment between isolation stages. Use Value: 230 MHz fT and <2.5 pF collector capacitance preserve signal integrity in sub-10 ns edge-rate paths, minimizing jitter in time-critical measurements. |
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 |
|---|---|---|---|
| PDTC114EQAZ | R1 = R2 = 10 kΩ; higher input impedance; VI(on) = 1.8 V min at IC = 10 mA | Better suited for 5 V CMOS logic drive; lower base current draw than PDTC143EQAZ | Select when interfacing with 5 V microcontrollers or when minimizing base current is critical. |
| BC847BW | Discrete NPN BJT; no integrated resistors; requires external 10 kΩ base resistor; SOT-323 package (1.7 × 1.3 × 0.95 mm) | Higher package height and larger footprint; lacks AEC-Q101 qualification and AOI-friendly side pads | Choose only if legacy design reuse or higher VCEO margin (>50 V) is required; not recommended for new automotive designs. |
Compared with PDTC114EQAZ, PDTC143EQAZ delivers lower input threshold voltage and faster turn-on for 3.3 V logic systems; versus BC847BW, it reduces total solution size by 65% and eliminates resistor placement risk-making it optimal for high-volume, space-constrained automotive modules.
Availability
PDTC143EQAZ is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC input conditioning, consumer appliance motor interfaces, and medical diagnostic equipment requiring stable component supply across long production lifecycles.
Supply support for PDTC143EQAZ 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, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.
PDTC143EQAZ belongs to Nexperia's resistor-equipped transistor (RET) product line-designed specifically to replace multi-component BJT switch circuits in space- and cost-sensitive digital interface applications.
FAQ
What is the maximum allowable ambient temperature for continuous operation?
PDTC143EQAZ supports continuous operation from −55 °C to +150 °C ambient temperature. At 150 °C, its maximum continuous output current drops to 100 mA only when mounted on a 4-layer FR4 PCB with standard footprint; derating applies above 85 °C on single-layer boards per Figure 2 in the datasheet.
Can PDTC143EQAZ replace BC847B in existing designs without layout changes?
No-direct replacement requires PCB redesign. PDTC143EQAZ uses DFN1010D-3 (SOT1215) with 0.35 mm pin pitch and side-solderable pads, whereas BC847B uses SOT-23 (2.2 × 1.35 × 1.1 mm) with gull-wing leads. Footprint, stencil, and reflow profile must be updated to accommodate the smaller, leadless package.
How does the dual-collector configuration (pins 3 and 4) affect thermal performance?
Pins 3 and 4 are internally shorted collector terminals. Using both pads doubles copper connection area, reducing thermal resistance from junction to PCB by ~15% versus single-pad connection. This improves power dissipation capability-especially critical when operating near Ptot = 440 mW on 4-layer boards.
Is the 4.7 kΩ resistor tolerance specified in the datasheet?
Yes-Table 8 specifies R1 = 3.3 kΩ (min), 4.7 kΩ (typ), 6.1 kΩ (max), indicating ±25% tolerance. This matches industry-standard RET tolerances and is validated under the resistor test conditions in Table 9 using ±600 µA current sources.
PDTC143EQAZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- 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:
- 280 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1010D-3
PDTC143EQAZ FAQ
1.How can I place an order for PDTC143EQAZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC143EQAZ 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 PDTC143EQAZ reliable?
The price and inventory of PDTC143EQAZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC143EQAZ is usually 5 days.
3.What payment methods are accepted for PDTC143EQAZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC143EQAZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC143EQAZ?
PDTC143EQAZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC143EQAZ 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 PDTC143EQAZ?
For technical support, including PDTC143EQAZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC143EQAZ requirements.
6.How does Aetrix verify that PDTC143EQAZ is sourced from the original manufacturer or authorized distributors?
All PDTC143EQAZ 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 PDTC143EQAZ meets industry standards.
7.What is the process for return or replacement of PDTC143EQAZ?
All PDTC143EQAZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTC143EQAZ, 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 PDTC143EQAZ part is unused and in its original packaging.
Return procedure for PDTC143EQAZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC143EQAZ 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
Nexperia USA Inc.
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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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PDTC124ET,215
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