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NXP Semiconductors PDTA143XS,126
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- Part No.:
- PDTA143XS,126
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
PDTA143XS,126.pdf
- Description:
- TRANS PREBIAS PNP 50V TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,989
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Product details
Overview
PDTA143XS,126 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 PDTA143XS,126 datasheet, PDTA143XS,126 pinout, PDTA143XS,126 application, or PDTA143XS,126 equivalent, this device serves as a space- and cost-optimized replacement for discrete base-resistor transistor configurations in IC input control and load switching circuits where simplified layout and reduced component count are critical.
Technical Context
The PDTA143XS,126 integrates a PNP bipolar transistor with two monolithically embedded silicon resistors: R1 (input bias resistor, 4.7 kΩ nominal) connected between base and input terminal, and R2 (base-emitter feedback resistor, 10 kΩ nominal) connected between base and emitter. This configuration enables single-pin drive operation without external bias components.
It operates as a saturated switch with guaranteed VI(on) ≤ −1.5 V at IC = −20 mA and VI(off) ≥ −0.9 V at IC = −100 μA, supporting reliable logic-level interfacing to microcontrollers and gate drivers. Its thermal resistance Rth(j-a) is 500 K/W on FR4 PCB, matching SOT23 package constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum allowable collector-emitter voltage under open-base condition; defines safe operating range for automotive 12 V and industrial 24 V rail switching. |
| IO | −100 mA - Continuous DC output current capability; supports driving moderate loads such as LEDs, relays, and small solenoids. |
| R1 | 4.7 kΩ (3.3–6.1 kΩ) - Input bias resistor value; sets base current for predictable turn-on without external components. |
| R2/R1 | 2.1 (1.7–2.6) - Fixed internal resistor ratio; ensures stable saturation and prevents latch-up during transient conditions. |
| VCE(sat) | ≤ −100 mV at IC = −10 mA, IB = −0.5 mA - Low saturation voltage minimizes power loss and self-heating in high-duty-cycle switching. |
| hFE | ≥50 at VCE = −5 V, IC = −10 mA - Minimum DC current gain ensures robust switching margin across temperature and process variation. |
| fT | 180 MHz - Transition frequency of the internal transistor; confirms suitability for fast digital edge rates up to ~10–20 MHz. |
Pinout & Package
SOT23 plastic surface-mounted package (JEDEC TO-236AB), 3-lead, body size 2.9 × 1.3 × 1.0 mm; optimized for reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level drive signal directly from MCU GPIO or buffer output. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; provides return path for load current and reference for R2 feedback. |
| 3 | Output (collector) | Switched high-side output node; connects to load anode (for PNP high-side switch configuration) or pull-down point. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 + R2 bias network | Eliminates need for two external resistors, reducing BOM count and PCB area by >2 mm² per instance. |
| AEC-Q101 qualification | Validated for automotive under-hood and infotainment applications per stress test requirements including HTOL, TC, and ESD. |
| −100 mA continuous output | Supports direct drive of common automotive indicators (LED clusters, status lamps) without external amplification. |
| Low VCE(sat) (≤ −100 mV) | Reduces conduction loss to <1 mW at 10 mA, enabling thermally constrained designs in sealed enclosures. |
| Logic-compatible input thresholds | VI(on) ≤ −1.5 V and VI(off) ≥ −0.9 V ensure clean switching with standard 3.3 V or 5 V CMOS outputs. |
Applications
| Automotive LED Control | Industrial Sensor Interface |
|---|---|
Use Scenario: Driving segmented dashboard backlighting and status indicators in instrument clusters. IC Role / Device Role / Timing Role: High-side PNP switch controlling cathode-side current paths for red/green/blue LED strings. Use Value: Built-in R1/R2 eliminates external biasing, enabling compact 0603-footprint solutions compatible with AEC-Q101 reliability requirements. |
Use Scenario: Level-shifting and enabling analog sensor power rails in PLC I/O modules. IC Role / Device Role / Timing Role: Enable switch for 5 V/3.3 V sensor supply, controlled by isolated digital output. Use Value: −50 V VCEO and −100 mA IO support robust 24 V industrial bus interfacing with minimal external protection. |
| Consumer Appliance Logic Interface | Medical Diagnostic Equipment |
Use Scenario: Controlling buzzer activation and display backlight in smart home thermostats. IC Role / Device Role / Timing Role: Digital output buffer isolating MCU pins from inductive and capacitive loads. Use Value: Guaranteed VI(on)/VI(off) thresholds prevent false triggering during EMI exposure in mixed-signal environments. |
Use Scenario: Enabling low-power analog front-end stages in portable diagnostic devices. IC Role / Device Role / Timing Role: Precision enable switch for op-amp bias networks and ADC reference buffers. Use Value: Low VCE(sat) and tight hFE min ensure stable quiescent current control within ±1% accuracy bands. |
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,115 | NPN complement with identical R1/R2 values and SOT23 package; requires inverted logic drive and low-side switching topology. | Used where load must be switched to ground rather than VCC; not interchangeable without circuit revision. | Select when existing design uses NPN logic and shares footprint/tooling with PDTA143XS,126. |
| BC857B,215 | Standard PNP BJT without integrated resistors; requires two external bias resistors and occupies ~30% more board area. | Offers higher hFE (120–250) but increases component count, pick-and-place steps, and layout complexity. | Choose only if precise gain tuning or higher current gain is required and space/cost trade-offs are acceptable. |
Compared with PDTC143XT,115, PDTA143XS,126 enables high-side switching with native logic compatibility; compared with BC857B,215, it reduces bill-of-materials and assembly cost while maintaining AEC-Q101 compliance and thermal performance in SOT23.
Availability
PDTA143XS,126 is available at Aetrix Electronics and suitable for automotive lighting control, industrial sensor interface, consumer appliance logic buffering, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for PDTA143XS,126 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 for automotive, industrial, and consumer markets.
The PDTA143X series belongs to Nexperia's resistor-equipped transistor product line, engineered specifically to replace discrete BJT + resistor combinations in cost-sensitive, space-constrained digital switching applications.
FAQ
What is the package type and footprint compatibility of PDTA143XS,126?
PDTA143XS,126 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 reflow profile compatibility with other SOT23 discrete transistors and RETs, enabling drop-in replacement in existing layouts designed for JEDEC TO-236AB outlines.
Does PDTA143XS,126 require external bias resistors?
No. PDTA143XS,126 integrates R1 = 4.7 kΩ and R2 = 10 kΩ internally, eliminating the need for external base bias components. This simplifies schematic design, reduces PCB real estate, and improves manufacturing yield by removing two passive placement steps-confirmed in Nexperia's Product data sheet Rev. 5, Table 1 and Section 1.2.
Is PDTA143XS,126 qualified for automotive applications?
Yes. PDTA143XS,126 is AEC-Q101 qualified per Nexperia's official documentation (Section 8.1, Product data sheet Rev. 5), covering stress tests including high-temperature operating life, temperature cycling, and electrostatic discharge. It is approved for use in automotive infotainment, body electronics, and powertrain subsystems.
What is the maximum ambient temperature for continuous operation of PDTA143XS,126?
PDTA143XS,126 supports continuous operation from −65 °C to +150 °C ambient temperature (Tamb), as specified in Table 6 (Limiting values). At elevated temperatures, derating applies: total power dissipation drops linearly above 25 °C, reaching zero at 150 °C per Figure 1's power derating curve for SOT23.
How does the R2/R1 ratio affect switching behavior in PDTA143XS,126?
The R2/R1 ratio of 2.1 (1.7–2.6) in PDTA143XS,126 ensures stable saturation and prevents unintended conduction during noise transients. A higher ratio increases base-emitter feedback, improving immunity to leakage-induced turn-on-critical for reliable operation in noisy automotive and industrial environments per characteristics in Table 8.
PDTA143XS,126 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Packaging:
- Tape & Box (TB)
- 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:
- 500 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-3
PDTA143XS,126 FAQ
1.How can I place an order for PDTA143XS,126 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA143XS,126 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 PDTA143XS,126 reliable?
The price and inventory of PDTA143XS,126 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA143XS,126 is usually 5 days.
3.What payment methods are accepted for PDTA143XS,126?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA143XS,126 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA143XS,126?
PDTA143XS,126 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA143XS,126 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 PDTA143XS,126?
For technical support, including PDTA143XS,126 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA143XS,126 requirements.
6.How does Aetrix verify that PDTA143XS,126 is sourced from the original manufacturer or authorized distributors?
All PDTA143XS,126 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 PDTA143XS,126 meets industry standards.
7.What is the process for return or replacement of PDTA143XS,126?
All PDTA143XS,126 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA143XS,126, 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 PDTA143XS,126 part is unused and in its original packaging.
Return procedure for PDTA143XS,126:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA143XS,126 Tags
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onsemi
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DTC043ZEBTL
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