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Nexperia USA Inc. PDTA143ZT,235
- Part No.:
- PDTA143ZT,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTA143ZT,235.pdf
- Description:
- TRANS PREBIAS PNP 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,740
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Product details
Overview
PDTA143ZT from Nexperia is a PNP resistor-equipped transistor (RET) in SOT23 package, designed for digital switching with built-in bias resistors R1 = 4.7 kΩ and R2 = 47 kΩ, VCEO = −50 V, IO = −100 mA, and R2/R1 ratio of 10 - used to control IC inputs and switch low-power loads in industrial control modules.
For engineers reviewing the PDTA143ZT datasheet, PDTA143ZT pinout, PDTA143ZT application, or PDTA143ZT equivalent, this page delivers verified electrical parameters, validated SOT23 terminal mapping, real-world digital switching use cases, and confirmed alternatives to BC847/857 series transistors.
Technical Context
This PNP RET integrates a monolithic PNP bipolar transistor with two precision on-die resistors: R1 connects base to input, R2 connects base to emitter, enabling single-resistor drive logic-level interfacing. It operates as a saturated switch without external bias components.
Its −50 V VCEO rating supports automotive-grade voltage margins, while its −100 mV VCEsat at IC = −5 mA / IB = −0.25 mA ensures low conduction loss. The device exhibits hFE ≥ 100 at VCE = −5 V and IC = −10 mA, confirming robust current gain in digital on-state operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - maximum collector-emitter blocking voltage under open-base condition; defines safe operating range for 24 V industrial bus switching. |
| IO | −100 mA - continuous output current capability; sufficient for driving LED indicators, small relays, or logic gate inputs. |
| R1 | 4.7 kΩ ±27% - input bias resistor; sets base current for logic-compatible turn-on with 3.3 V or 5 V microcontroller outputs. |
| R2/R1 | 10 - fixed internal resistor ratio; ensures stable saturation and prevents thermal runaway during sustained conduction. |
| VCEsat | −100 mV max at IC = −5 mA - low saturation voltage minimizes power dissipation and self-heating in high-duty-cycle switching. |
| hFE | ≥100 at VCE = −5 V, IC = −10 mA - guarantees reliable current amplification without external feedback design overhead. |
| Ptot | 250 mW at Tamb ≤ 25 °C - thermal limit on FR4 PCB; derates linearly above 25 °C per Fig. 1 (500 K/W Rth(j-a)). |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch), optimized for automated placement and reflow soldering on standard FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Logic-level signal entry point; internally connected to R1 and R2 network - accepts 0 V to 5 V drive without external pull-up/down. |
| 2 | GND (emitter) | Emitter reference node; serves as common return path for load current and internal resistor network - must be tied to system ground. |
| 3 | Output (collector) | Switched high-side output node; sinks current from load to emitter - used to control active-low loads (e.g., N-channel MOSFET gate, LED anode). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 + R2 bias network | Eliminates need for two external resistors - reduces BOM count by 2 parts and saves ~1.5 mm² PCB area per instance. |
| Single-supply logic compatibility | VI(on) = −0.9 V typical at IC = −5 mA - enables direct interface with 3.3 V or 5 V CMOS outputs without level-shifting circuitry. |
| Guaranteed saturation | VCEsat ≤ −100 mV ensures <10 mW conduction loss at 100 mA - critical for thermally constrained space-constrained modules. |
| Automotive-qualified variant available | PDTC143ZT is NPN complement; −Q automotive versions exist (per revision history v.10 note) - supports dual-polarity digital I/O design. |
| Standard SOT23 footprint | Compatible with JEDEC MS-012AC outline - enables drop-in replacement in existing layouts and leverages mature pick-and-place tooling. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Level-shifting and isolation between 3.3 V MCU GPIO and 12 V sensor supply rails in factory automation sensors. IC Role / Device Role / Timing Role: PNP RET acts as an active-low level translator and current sink for open-collector sensor outputs. Use Value: Eliminates discrete resistor pair and reduces layout complexity while maintaining <1 µs switching response per fT = 180 MHz. |
Use Scenario: Driving LED status indicators and small solenoid valves in door module PCBs with limited board space. IC Role / Device Role / Timing Role: Digital switch controlling 12 V loads referenced to chassis ground; operates in pulsed duty cycles up to 50%. Use Value: −100 mV VCEsat limits power loss to <10 mW per channel - avoids local hot spots in densely packed modules. |
| Consumer Appliance Control Board | IoT Edge Node Power Sequencing |
|
Use Scenario: Enabling/disabling auxiliary power rails (e.g., display backlight, buzzer driver) in smart home appliances. IC Role / Device Role / Timing Role: Low-side enable switch controlled by 3.3 V SoC GPIO; handles 50–80 mA peak loads. Use Value: Built-in R1/R2 ensures consistent turn-on behavior across temperature (−40 °C to +100 °C), eliminating calibration drift. |
Use Scenario: Sequencing startup of RF transceiver and sensor subsystems in battery-powered edge devices. IC Role / Device Role / Timing Role: Precision timing-controlled power gate using MCU timer output to manage inrush current. Use Value: hFE ≥ 100 at IC = −10 mA ensures deterministic turn-on even under low-battery 2.8 V conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP digital switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC857B | Discrete PNP BJT (no integrated resistors); requires external RB and RBE; hFE = 200–450; VCEO = −45 V. | Higher gain but needs 2 extra passives; less suitable for ultra-compact designs where RET integration adds value. | Select when fine-tuned biasing or higher hFE stability across IC range is required. |
| PDTA123YK,215 | Same SOT23 RET family; R1 = 2.2 kΩ, R2 = 10 kΩ (R2/R1 = 4.5); lower input resistance; VI(on) = −0.7 V typ. | Better suited for 1.8 V logic interfaces; higher input current draw may increase MCU port loading. | Select when interfacing with low-voltage MCUs (<2.5 V) or requiring faster turn-on due to lower R1. |
Compared with BC857B, PDTA143ZT trades off external bias flexibility for reduced component count and guaranteed saturation; compared with PDTA123YK, it offers higher noise immunity via larger R1 and tighter R2/R1 tolerance, making it preferable for 3.3 V/5 V industrial control.
Availability
PDTA143ZT is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, consumer appliance control boards, and IoT edge node power sequencing requiring stable component supply and long-term production continuity.
Supply support for PDTA143ZT 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.
PDTA143ZT belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered to replace discrete BJT + resistor combinations in digital switching applications - reducing design time and improving manufacturing yield.
FAQ
What is the maximum ambient temperature for continuous operation?
The PDTA143ZT supports continuous operation from −65 °C to +150 °C ambient, with full 250 mW power dissipation only up to +25 °C. Above that, derating follows a linear curve: 0.5 mW/°C reduction per degree, based on Rth(j-a) = 500 K/W on standard FR4 PCB.
Can PDTA143ZT drive a 12 V relay coil directly?
Yes - with IO = −100 mA rating and VCEO = −50 V, it can safely switch typical 12 V, 30–70 mA relay coils. Ensure the coil flyback diode is placed across the load, not the transistor, and verify VCEsat remains ≤ −100 mV under actual load current per test conditions in Table 7.
Is there an automotive-qualified version of PDTA143ZT?
No - the PDTA143ZT itself is non-automotive qualified (per Revision History v.10). However, Nexperia offers automotive-grade equivalents under the "-Q" suffix (e.g., PDTA143ZT-Q), which undergo AEC-Q101 stress testing and are documented separately on nexperia.com.
How does the R2/R1 ratio affect switching performance?
An R2/R1 ratio of 10 ensures optimal base current division to maintain deep saturation while preventing excessive base drive - minimizing VCEsat and avoiding unnecessary power loss in R1. Deviations outside 8–12 (per Table 7) risk incomplete turn-on or thermal instability under varying temperature.
PDTA143ZT,235 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):
- 50 V
- Resistor - Base (R1):
- 4.7 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTA143ZT,235 FAQ
1.How can I place an order for PDTA143ZT,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA143ZT,235 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 PDTA143ZT,235 reliable?
The price and inventory of PDTA143ZT,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA143ZT,235 is usually 5 days.
3.What payment methods are accepted for PDTA143ZT,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA143ZT,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA143ZT,235?
PDTA143ZT,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA143ZT,235 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 PDTA143ZT,235?
For technical support, including PDTA143ZT,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA143ZT,235 requirements.
6.How does Aetrix verify that PDTA143ZT,235 is sourced from the original manufacturer or authorized distributors?
All PDTA143ZT,235 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 PDTA143ZT,235 meets industry standards.
7.What is the process for return or replacement of PDTA143ZT,235?
All PDTA143ZT,235 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA143ZT,235, 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 PDTA143ZT,235 part is unused and in its original packaging.
Return procedure for PDTA143ZT,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA143ZT,235 Tags
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