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NXP Semiconductors PDTA143XK,115
- Part No.:
- PDTA143XK,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTA143XK,115.pdf
- Description:
- TRANS PREBIAS PNP 50V 0.1A SMT3
- Quantity:
- Payment:
- Shipping:
Inventory:5,848
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Product details
Overview
PDTA143XK,115 from Nexperia is a PNP resistor-equipped transistor (RET) in SOT23 surface-mount package, designed for digital switching applications with built-in bias resistors R1 = 4.7 kΩ and R2 = 10 kΩ, −50 V collector-emitter voltage rating, −100 mA output current capability, and AEC-Q101 qualification for automotive use.
For engineers reviewing the PDTA143XK,115 datasheet, PDTA143XK,115 pinout, PDTA143XK,115 application, or PDTA143XK,115 equivalent, this page delivers verified electrical parameters, thermal derating curves, pin-level circuit roles, automotive-grade reliability data, and direct alternatives for load switching and IC input control in space-constrained designs.
Technical Context
This PNP RET integrates two precision bias resistors (R1 = 4.7 kΩ, R2/R1 = 2.1 typ.) to eliminate external base components, enabling single-pin drive logic-level signals. Its −50 V VCEO and −7 V VEBO ratings support robust operation in 12 V/24 V automotive power domains.
The device exhibits −100 mV VCEsat at IC = −10 mA / IB = −0.5 mA, hFE ≥ 50 at VCE = −5 V / IC = −10 mA, and fT = 180 MHz - confirming suitability for high-speed digital switching up to several MHz while maintaining low saturation loss and stable gain across −40 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum safe collector-emitter voltage under open-base condition; enables use in 24 V automotive systems with margin. |
| IO | −100 mA: Continuous DC output current capability; supports driving moderate loads like LEDs, relays, or logic inputs. |
| R1 | 4.7 kΩ ±27%: Integrated input bias resistor; eliminates need for external pull-up/pull-down, reducing BOM count and layout area. |
| VCEsat | ≤ −100 mV at IC = −10 mA / IB = −0.5 mA: Low saturation voltage minimizes power loss and heat generation during on-state operation. |
| hFE | ≥ 50 at VCE = −5 V / IC = −10 mA: Sufficient DC current gain ensures reliable turn-on with standard logic-level drive signals. |
| fT | 180 MHz: Transition frequency confirms fast switching performance suitable for digital signal routing and pulse-width modulation. |
| VI(on) | −2.5 V to −1.5 V at VCE = −0.3 V / IC = −20 mA: Validated on-threshold input voltage range compatible with 3.3 V and 5 V CMOS/TTL logic families. |
Pinout & Package
SOT23 plastic surface-mounted package (JEDEC TO-236AB), 3-lead, body size 2.9 mm × 1.3 mm × 1.0 mm; optimized for reflow soldering only.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | input (base) | Terminates internal R1–R2 bias network; accepts logic-level drive without external resistor; polarity matches PNP switching topology. |
| 2 | GND (emitter) | Emitter tied to system ground reference; serves as common return path for load current and bias network. |
| 3 | output (collector) | Switched high-side output node; connects to load (e.g., LED anode or relay coil); sinks current when active. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1/R2 bias network | Eliminates 2 external resistors per switch, reducing PCB area by ~1.5 mm² and eliminating placement errors in automated assembly. |
| AEC-Q101 qualification | Validated for automotive under-hood and infotainment applications per stress test requirements including HTOL, TC, and ESD-HBM ≥ 2 kV. |
| −100 mV VCEsat | Reduces conduction loss to <0.5 mW at 5 mA load, enabling thermally efficient operation in sealed enclosures without heatsinking. |
| 180 MHz fT | Supports clean edge transitions in PWM-driven loads up to 100 kHz with minimal rise/fall time degradation. |
| −50 V VCEO rating | Provides 2× safety margin over 24 V nominal vehicle battery systems, accommodating load-dump transients per ISO 7637-2. |
Applications
| Automotive Body Control Module | Industrial PLC Input Stage |
|---|---|
Use Scenario: Switching 12 V indicator LEDs and small solenoids in door modules and lighting controllers. IC Role / Device Role / Timing Role: PNP high-side switch controlled directly by microcontroller GPIO pins. Use Value: Built-in bias resistors enable direct MCU interface without level-shifting or discrete resistor networks, reducing component count by 2 per channel. |
Use Scenario: Conditioning 24 V industrial sensor signals before feeding into 3.3 V FPGA I/O banks. IC Role / Device Role / Timing Role: Digital input buffer and voltage translator for dry-contact or open-collector sensor interfaces. Use Value: −50 V VCEO and AEC-Q101 qualification ensure long-term reliability in electrically noisy factory environments with frequent ESD events. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Equipment Logic Interface |
Use Scenario: Enabling power rails for display backlight drivers and motor drivers in smart home appliances. IC Role / Device Role / Timing Role: Load switch for sequencing 5 V/3.3 V subsystems during startup and shutdown cycles. Use Value: −100 mV VCEsat limits self-heating to <1°C rise at 50 mA, supporting compact thermal design in sealed plastic housings. |
Use Scenario: Isolating microcontroller I/O from higher-voltage analog front-end circuits in portable diagnostic tools. IC Role / Device Role / Timing Role: Level-translating digital control signal between isolated domains with galvanic separation. Use Value: VI(on)/VI(off) thresholds guarantee noise-immune switching even with ±100 mV supply ripple on 3.3 V logic rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP digital switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC143XT,115 | NPN complement with identical R1/R2 values, SOT23 package, same footprint but opposite polarity. | Requires inverted logic drive and low-side load configuration instead of high-side switching. | Select when load must be grounded and controller output can sink current. |
| BC857B,215 | Standard PNP BJT without integrated resistors; requires two external bias resistors; same SOT23 package. | Higher BOM count and layout complexity; less immune to trace parasitics due to external R network. | Choose only if adjustable bias ratio or higher hFE (>200) is required beyond PDTA143XK,115's fixed architecture. |
Compared with PDTC143XT,115 and BC857B,215, PDTA143XK,115 provides polarity-matched high-side switching with zero external components, delivering faster time-to-schematic completion, reduced PCB real estate, and guaranteed bias stability across temperature - critical for automotive and industrial production programs where validation overhead must be minimized.
Availability
PDTA143XK,115 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input conditioning, consumer appliance power sequencing, and medical diagnostic equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PDTA143XK,115 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 - delivering discrete, logic, and MOSFET solutions optimized for automotive, industrial, and mobile applications.
The PDTA143XK,115 belongs to Nexperia's resistor-equipped transistor (RET) family, engineered specifically to replace legacy BJT + resistor combinations in cost-sensitive, space-constrained digital switching applications across automotive and industrial markets.
FAQ
What is the package type and footprint compatibility of PDTA143XK,115?
PDTA143XK,115 uses the SOT23 (TO-236AB) package with standardized 2.9 mm × 1.3 mm body dimensions and 0.95 mm lead pitch. It shares footprint and soldering profile with industry-standard SOT23 discrete transistors and logic devices, enabling drop-in replacement in existing layouts without redesign. Reflow soldering is the only recommended assembly method per Nexperia's specification.
Does PDTA143XK,115 require external bias resistors for basic switching operation?
No, PDTA143XK,115 does not require external bias resistors. It integrates R1 = 4.7 kΩ and R2 = 10 kΩ internally, forming a complete PNP digital switch with single-pin logic-level drive capability. This eliminates two passive components per channel, reduces PCB area, and removes sensitivity to trace resistance and parasitic capacitance in high-density layouts.
Is PDTA143XK,115 qualified for automotive applications?
Yes, PDTA143XK,115 is AEC-Q101 qualified for discrete semiconductors. It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and human-body model ESD (HBM ≥ 2 kV), making it suitable for under-hood and cabin electronics in passenger vehicles and commercial vehicles per ISO/TS 16949 requirements.
What is the maximum continuous output current rating for PDTA143XK,115?
The maximum continuous output current (IO) for PDTA143XK,115 is −100 mA at Tamb ≤ 25 °C. Derating applies above 25 °C ambient: total power dissipation drops linearly to zero at 150 °C junction temperature, with Rth(j-a) = 500 K/W for the SOT23 package. At 85 °C ambient, usable IO is approximately −65 mA under free-air conditions.
How does the VI(on) and VI(off) behavior of PDTA143XK,115 support noise immunity in industrial environments?
PDTA143XK,115 specifies VI(on) = −2.5 V to −1.5 V and VI(off) = −0.9 V to −0.3 V, establishing a ≥1.2 V guaranteed hysteresis window. This ensures reliable switching even with ±100 mV of supply rail noise or EMI-induced fluctuations on the input line - a key advantage over standard BJTs in electrically noisy PLC cabinets or motor drive zones.
PDTA143XK,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP - 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):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 50 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMT3; MPAK
PDTA143XK,115 FAQ
1.How can I place an order for PDTA143XK,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA143XK,115 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 PDTA143XK,115 reliable?
The price and inventory of PDTA143XK,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA143XK,115 is usually 5 days.
3.What payment methods are accepted for PDTA143XK,115?
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Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA143XK,115?
PDTA143XK,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA143XK,115 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 PDTA143XK,115?
For technical support, including PDTA143XK,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA143XK,115 requirements.
6.How does Aetrix verify that PDTA143XK,115 is sourced from the original manufacturer or authorized distributors?
All PDTA143XK,115 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 PDTA143XK,115 meets industry standards.
7.What is the process for return or replacement of PDTA143XK,115?
All PDTA143XK,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA143XK,115, 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 PDTA143XK,115 part is unused and in its original packaging.
Return procedure for PDTA143XK,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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