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Nexperia USA Inc. PDTC143EM,315
- Part No.:
- PDTC143EM,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-101, SOT-883
- Datasheet:
-
PDTC143EM,315.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT883
- Quantity:
- Payment:
- Shipping:
Inventory:4,836
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Product details
Overview
PDTC143EM from Nexperia is an AEC-Q101-qualified NPN resistor-equipped transistor (RET) in a DFN1006-3 (SOT883) package, featuring integrated 4.7 kΩ input bias resistor (R1) and 4.7 kΩ emitter feedback resistor (R2), 50 V VCEO, 100 mA IO, and optimized for digital switching in automotive control modules.
For engineers reviewing the PDTC143EM datasheet, PDTC143EM pinout, PDTC143EM application, or PDTC143EM equivalent, this device serves as a drop-in replacement for BC847-based digital interface circuits where board space, BOM count, and AEC-Q101 compliance are critical constraints.
Technical Context
This RET integrates a monolithic NPN transistor with two precision laser-trimmed on-die resistors-R1 connected between base and input, R2 between base and emitter-enabling single-resistor drive logic-level interfacing without external bias networks. Its 1:1 R2/R1 ratio ensures stable saturation under varying temperature and supply conditions.
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, supporting direct connection to 3.3 V and 5 V microcontroller GPIOs. Its fT = 230 MHz (typ.) reflects the intrinsic gain-bandwidth of the embedded transistor, not system-level switching speed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports 24 V automotive rail switching with margin. |
| IO | 100 mA - Continuous output current capability; sufficient for driving LED indicators, small relays, or logic inputs. |
| R1 | 4.7 kΩ (3.3–6.1 kΩ) - Input bias resistor enabling direct MCU GPIO drive without external pull-up/down components. |
| R2/R1 | 1.0 (0.8–1.2) - Matched internal resistor ratio ensuring predictable turn-on/off thresholds across temperature and process variation. |
| VCE(sat) | 150 mV (max) at IC = 10 mA, IB = 0.5 mA - Low saturation voltage minimizes power loss and heat generation in switching mode. |
| hFE | 30 (min) at VCE = 5 V, IC = 10 mA - Guaranteed DC current gain ensures reliable saturation with standard logic-level base drive. |
| fT | 230 MHz (typ.) - Intrinsic transition frequency of the bare transistor; indicates high-speed switching potential within RET architecture limits. |
Pinout & Package
DFN1006-3 (SOT883) is a leadless, ultra-small surface-mount package measuring 1.02 mm × 0.6 mm × 0.48 mm with 0.35 mm pitch and exposed die pad for thermal conduction. It requires reflow soldering only and is compatible with automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base node) | Connected internally to R1; accepts logic-level drive directly from MCU or gate output. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; also serves as thermal and electrical reference for internal resistors. |
| 3 | Output (collector) | Switched high-side load node; connects to load (e.g., LED anode, relay coil) with return path through VCC. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Qualified per Stress Test Qualification for Discrete Semiconductors-enables use in automotive body control, lighting, and sensor interface modules. |
| Integrated R1 + R2 network | Eliminates need for two external bias resistors, reducing PCB area by ≥1.5 mm² and eliminating two pick-and-place operations. |
| 100 mA continuous output | Sustains full-rated current at Tamb ≤ 25 °C with standard FR4 footprint; derates linearly to zero at 125 °C ambient. |
| Low VI(on) / VI(off) separation | 1.9 V (on) vs. 1.1 V (off) enables robust noise margin (>0.5 V) against 3.3 V logic thresholds in noisy automotive environments. |
| Thermal resistance Rth(j-a) | 500 K/W in free air-supports operation up to 125 °C junction temperature when mounted on standard FR4 with 70 µm copper traces. |
Applications
| Automotive Interior Lighting Control | Industrial PLC Digital Input Conditioning |
|---|---|
|
Use Scenario: Switching 12 V LED strips in door modules and footwell lighting using 3.3 V CAN/LIN microcontroller outputs. IC Role / Device Role / Timing Role: Digital switch translating low-voltage logic signals into 12 V load control with built-in current limiting and ESD tolerance. Use Value: Replaces BC847 + two 4.7 kΩ resistors, cutting BOM cost by $0.012/unit and saving 0.8 mm² PCB area per channel. |
Use Scenario: Level-shifting and current-limiting 24 V industrial sensor signals into 3.3 V FPGA or ARM GPIO inputs. IC Role / Device Role / Timing Role: Input buffer providing galvanic isolation via resistor network, suppressing transients and reducing false triggering. Use Value: Enables direct connection of 24 V dry-contact sensors without external voltage dividers or Schmitt triggers-reducing component count by 3 per channel. |
| Automotive HVAC Panel Indicator Drivers | Consumer Appliance Microcontroller Interface |
|
Use Scenario: Driving bi-color LED status indicators on HVAC control panels with PWM dimming from 5 V MCU timers. IC Role / Device Role / Timing Role: Constant-current switch operating in saturated mode with <150 mV VCE(sat) to minimize self-heating during 100% duty cycle. Use Value: Maintains consistent LED brightness across -40 °C to +105 °C ambient due to matched R1/R2 ratio and low hFE variation. |
Use Scenario: Enabling/disabling power to auxiliary circuits (e.g., display backlight, buzzer) in smart home appliances using 3.3 V SoC GPIOs. IC Role / Device Role / Timing Role: Load switch with integrated logic-level compatibility and fast turn-on (<100 ns propagation delay implied by fT). Use Value: Eliminates risk of accidental turn-on during power-up due to defined VI(off) threshold (1.1 V typ.), improving system reliability. |
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 |
|---|---|---|---|
| PDTC114EM | R1 = 10 kΩ, R2 = 10 kΩ; higher input impedance reduces drive current demand but increases VI(on) to 2.2 V (typ.) | Better suited for 5 V logic systems with weak drive strength; less optimal for 3.3 V MCU GPIOs near VI(off) margin | Select when interfacing with open-drain or high-impedance drivers where lower base current is required. |
| PDTC124EM | R1 = 22 kΩ, R2 = 22 kΩ; further increases input resistance but raises VI(on) to 2.5 V (typ.) and reduces noise immunity | Used primarily in battery-powered IoT nodes where quiescent current minimization outweighs switching speed | Prefer only in ultra-low-power applications where IB < 100 µA is mandatory and VCC ≥ 4.5 V. |
Compared with PDTC114EM and PDTC124EM, the PDTC143EM's 4.7 kΩ resistor values strike the optimal balance between drive compatibility with 3.3 V logic, noise margin, and saturation speed-making it the default choice for general-purpose automotive and industrial digital switching.
Availability
PDTC143EM is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC input conditioning, HVAC panel indicator driving, and consumer appliance microcontroller interface requiring stable component supply and AEC-Q101 assurance.
Supply support for PDTC143EM 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 specializing in high-performance, high-reliability discrete, logic, and MOSFET devices, with roots in Philips and headquartered in Nijmegen, Netherlands.
The PDTC143EM belongs to Nexperia's AEC-Q101-qualified Resistor-Equipped Transistor (RET) family, engineered specifically to replace discrete BJT + bias resistor combinations in space-constrained, high-volume automotive and industrial control applications.
FAQ
Is PDTC143EM suitable for 5 V logic interfacing?
Yes. With VI(on) = 1.9 V (typ.) and VI(off) = 1.1 V (typ.), the device reliably switches with 5 V CMOS outputs while maintaining >2 V noise margin. Its 4.7 kΩ R1 draws ~1 mA from a 5 V driver-within standard GPIO sink/source capability.
What is the maximum ambient temperature for continuous 100 mA operation?
At 100 mA, the device dissipates up to 15 mW (100 mA × 150 mV). Using the 250 mW Ptot rating and 500 K/W Rth(j-a), junction temperature remains below 150 °C up to approximately 125 °C ambient when mounted on standard FR4 with recommended footprint.
Can PDTC143EM replace BC847 in existing designs without layout changes?
No. The PDTC143EM uses DFN1006-3 (SOT883), a 1.02 mm × 0.6 mm leadless package, whereas BC847 uses SOT23 (3.0 mm × 1.4 mm). A new footprint and stencil design are required-but the elimination of two 0402/0603 resistors offsets PCB redesign effort.
Does PDTC143EM support PWM dimming of LEDs?
Yes. Its fT = 230 MHz and fast saturation characteristics support PWM frequencies up to 100 kHz with minimal rise/fall time degradation. VCE(sat) remains stable across duty cycles, ensuring consistent LED current and thermal behavior.
PDTC143EM,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-101, SOT-883
- 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:
- -
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-883
PDTC143EM,315 FAQ
1.How can I place an order for PDTC143EM,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC143EM,315 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 PDTC143EM,315 reliable?
The price and inventory of PDTC143EM,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC143EM,315 is usually 5 days.
3.What payment methods are accepted for PDTC143EM,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC143EM,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC143EM,315?
PDTC143EM,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC143EM,315 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 PDTC143EM,315?
For technical support, including PDTC143EM,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC143EM,315 requirements.
6.How does Aetrix verify that PDTC143EM,315 is sourced from the original manufacturer or authorized distributors?
All PDTC143EM,315 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 PDTC143EM,315 meets industry standards.
7.What is the process for return or replacement of PDTC143EM,315?
All PDTC143EM,315 units undergo pre-shipment inspection (PSI). If there is an issue with PDTC143EM,315, 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 PDTC143EM,315 part is unused and in its original packaging.
Return procedure for PDTC143EM,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC143EM,315 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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PDTC143ZT,215
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PDTC143XT,215
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MMUN2211LT1G
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PDTC124ET,215
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