Nexperia USA Inc. PDTA143XTVL
- Part No.:
- PDTA143XTVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTA143XTVL.pdf
- Description:
- TRANS PREBIAS PNP TO236AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PDTA143XT from Nexperia is a PNP resistor-equipped transistor (RET) in SOT23 package, designed for digital switching applications with built-in bias resistors R1 = 4.7 kΩ and R2 = 10 kΩ, −50 V VCEO rating, −100 mA output current capability, and AEC-Q101 qualification for automotive use.
For engineers reviewing the PDTA143XT datasheet, PDTA143XT pinout, PDTA143XT application, or PDTA143XT equivalent, key selection considerations include its integrated base resistors, guaranteed DC current gain (hFE ≥ 50 at IC = −10 mA), low VCEsat (≤ −100 mV), on-state input voltage range (−2.5 V to −1.5 V), and thermal resistance of 500 K/W in free air.
Technical Context
This PNP RET integrates two precision bias resistors (R1 = 4.7 kΩ, R2/R1 ratio = 2.1 typ.) to eliminate external components and ensure stable saturation under varying drive conditions. Its internal transistor delivers hFE ≥ 50 at −10 mA collector current and −5 V VCE, with fT = 180 MHz enabling reliable high-speed digital switching.
The device operates across −65 °C to +150 °C ambient temperature, supports reflow-only soldering per JEDEC J-STD-020, and achieves −100 mV VCEsat at IC = −10 mA/IB = −0.5 mA - confirming robust saturation performance in logic-level interface circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - maximum safe collector-emitter voltage with open base, enabling use in 24 V automotive supply rails. |
| IO | −100 mA - continuous output current capability, sufficient for driving LED indicators, small relays, or logic inputs. |
| R1 | 4.7 kΩ ±28% - precision input bias resistor enabling direct TTL/CMOS logic interface without external pull-up/down. |
| hFE | ≥50 at VCE = −5 V, IC = −10 mA - ensures reliable saturation with low base drive current in digital control circuits. |
| VCEsat | ≤ −100 mV at IC = −10 mA, IB = −0.5 mA - minimizes power loss and heat generation during active switching. |
| fT | 180 MHz - supports clean edge transitions in high-frequency digital signal routing up to ~10–20 MHz. |
| VI(on) | −2.5 V to −1.5 V at VCE = −0.3 V, IC = −20 mA - defines valid logic-high input threshold for robust noise margin. |
Pinout & Package
SOT23 plastic surface-mounted package (TO-236AB); 3-lead, standard footprint; body dimensions 2.9 mm × 1.3 mm × 1.0 mm; reflow-solder compatible only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | input (base) | Connected internally to R1 and R2 network; accepts logic-level drive directly from MCU GPIO or gate outputs. |
| 2 | GND (emitter) | Emitter tied to system ground; serves as common reference for input and output paths in low-side switch configuration. |
| 3 | output (collector) | Switched output node; sinks current to ground when active, suitable for controlling loads referenced to VCC. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | Eliminates need for two external resistors, reducing BOM count and PCB area in digital interface designs. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
| Low VCEsat | ≤ −100 mV enables <10 mW conduction loss at 100 mA, critical for thermally constrained modules. |
| Small-form-factor SOT23 | Standardized 3-lead package compatible with automated pick-and-place and reflow assembly lines. |
| Wide operating temperature | −65 °C to +150 °C junction range supports under-hood and industrial control environments. |
Applications
| Automotive LED Control | Industrial Logic-Level Translation |
|---|---|
Use Scenario: Driving 12 V indicator LEDs in dashboard clusters or lighting modules. IC Role / Device Role / Timing Role: PNP RET configured as low-side switch to sink LED current while interfacing with 3.3 V/5 V microcontroller outputs. Use Value: Built-in R1/R2 eliminates discrete resistor placement, reduces layout complexity, and ensures consistent turn-on behavior across temperature. |
Use Scenario: Level-shifting between 3.3 V FPGA I/O and 5 V legacy peripherals in programmable logic controllers. IC Role / Device Role / Timing Role: Digital interface buffer providing inverted logic translation with sub-100 ns propagation delay. Use Value: Guaranteed hFE ≥ 50 and VI(on) ≤ −1.5 V enable reliable switching even with marginal drive strength or elevated ambient temperatures. |
| Consumer Appliance Power Sequencing | Medical Device Signal Isolation |
Use Scenario: Enabling/disabling auxiliary power rails in smart home hubs during boot-up or fault recovery. IC Role / Device Role / Timing Role: Discrete load switch controlling 5 V standby supplies based on processor reset signals. Use Value: −100 mA IO rating and −50 V VCEO support multi-rail sequencing with margin against voltage transients. |
Use Scenario: Isolating sensor interface signals from main controller in portable diagnostic equipment. IC Role / Device Role / Timing Role: Digital isolator front-end stage converting noisy analog sensor enable pulses into clean, rail-to-rail logic edges. Use Value: Low Cc (3 pF) and high fT (180 MHz) preserve signal integrity during fast enable/disable transitions without ringing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC143XT | NPN complement with identical R1/R2 values, same SOT23 package, but opposite polarity and logic inversion. | Requires inverted control signal; used where load must be connected to VCC instead of ground. | Select when circuit topology demands high-side switching or non-inverted logic drive. |
| BC857B | Standard PNP BJT without integrated resistors; requires two external bias resistors; hFE = 200–450 (wider spread). | Higher design flexibility but increases component count, layout area, and sensitivity to resistor tolerance drift. | Choose only when precise gain control or adjustable bias is required beyond fixed RET functionality. |
Compared with PDTC143XT, PDTA143XT provides complementary polarity for grounded-load configurations; compared with BC857B, it trades off gain adjustability for reduced BOM count, tighter bias consistency, and smaller board footprint.
Availability
PDTA143XT is available at Aetrix Electronics and suitable for automotive LED control, industrial logic-level translation, consumer appliance power sequencing, and medical device signal isolation requiring stable component supply and AEC-Q101 compliance.
Supply support for PDTA143XT 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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The PDTA143XT belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered specifically to replace traditional BJT + resistor combinations in cost-sensitive, space-constrained digital interface applications.
FAQ
What is the maximum allowable continuous collector current for PDTA143XT?
The absolute maximum continuous collector current (IO) is −100 mA at Tamb ≤ 25 °C. Derating applies above 25 °C per the 500 K/W thermal resistance curve; at 85 °C ambient, maximum usable current drops to approximately −65 mA to maintain Tj ≤ 150 °C.
Can PDTA143XT be used with 3.3 V microcontroller GPIOs?
Yes - its VI(on) range of −2.5 V to −1.5 V ensures reliable turn-on with 3.3 V logic outputs when emitter is grounded and base is driven low. The integrated R1/R2 network provides appropriate base current without external components, supporting direct connection to most MCU pins.
Is reflow soldering mandatory for PDTA143XT?
Yes - Nexperia specifies reflow soldering as the only recommended method. Wave soldering is not qualified for this device. The SOT23 package must be mounted on FR4 PCB with standard footprint and processed per JEDEC J-STD-020 profile to avoid thermal damage or solder joint reliability issues.
How does the R2/R1 ratio affect switching behavior?
The R2/R1 ratio of 2.1 typ. (1.7–2.6 min–max) sets the internal feedback path that stabilizes base current and improves saturation consistency across process and temperature variations. This ratio ensures predictable turn-off characteristics and reduces sensitivity to external noise coupling at the input pin.
PDTA143XTVL 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:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- -
- 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:
- 100mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- 180 MHz
- Power - Max:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTA143XTVL FAQ
1.How can I place an order for PDTA143XTVL through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA143XTVL 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 PDTA143XTVL reliable?
The price and inventory of PDTA143XTVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA143XTVL is usually 5 days.
3.What payment methods are accepted for PDTA143XTVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA143XTVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA143XTVL?
PDTA143XTVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA143XTVL 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 PDTA143XTVL?
For technical support, including PDTA143XTVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA143XTVL requirements.
6.How does Aetrix verify that PDTA143XTVL is sourced from the original manufacturer or authorized distributors?
All PDTA143XTVL 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 PDTA143XTVL meets industry standards.
7.What is the process for return or replacement of PDTA143XTVL?
All PDTA143XTVL units undergo pre-shipment inspection (PSI). If there is an issue with PDTA143XTVL, 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 PDTA143XTVL part is unused and in its original packaging.
Return procedure for PDTA143XTVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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