Nexperia USA Inc. PDTA143ET,215
- Part No.:
- PDTA143ET,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTA143ET,215.pdf
- Description:
- TRANS PREBIAS PNP 50V TO236AB
- Quantity:
- Payment:

- Shipping:

Inventory:2,785
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Product details
Overview
PDTA143ET,215 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 = 4.7 kΩ, −50 V VCEO rating, −100 mA output current capability, and AEC-Q101 qualification for automotive use.
For engineers reviewing the PDTA143ET,215 datasheet, PDTA143ET,215 pinout, PDTA143ET,215 application, or PDTA143ET,215 equivalent, this device serves as a space- and cost-optimized replacement for BC857-series transistors in IC input control and low-power load switching circuits where simplified biasing and reduced component count are critical.
Technical Context
This PNP RET integrates two precision bias resistors (R1 = 4.7 kΩ, R2/R1 = 1.0 typ.) to eliminate external base resistors, enabling direct logic-level drive. Its −150 mV VCEsat at IC = −10 mA / IB = −0.5 mA ensures low conduction loss in saturated switching.
The device operates across −65 °C to +150 °C ambient, supports reflow-only soldering per JEDEC J-STD-020, and delivers 180 MHz fT at IC = −10 mA - sufficient for high-speed digital interface buffering and signal conditioning up to ~50 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum safe collector-emitter voltage under open-base conditions; enables use in 24 V automotive supply rails with margin. |
| IO | −100 mA: Continuous DC output current; supports driving LEDs, small relays, or logic inputs without external current limiting. |
| R1 | 4.7 kΩ ±28%: Input bias resistor value; sets base current for predictable turn-on with standard CMOS/TTL logic outputs. |
| VCEsat | −150 mV max at IC = −10 mA / IB = −0.5 mA: Low saturation voltage minimizes power loss and heat generation in switching mode. |
| fT | 180 MHz typ. at VCE = −5 V, IC = −10 mA: Transition frequency confirms suitability for fast digital switching and pulse-width modulation up to 20–30 MHz. |
| hFE | 30 min at VCE = −5 V, IC = −10 mA: Guaranteed DC current gain ensures reliable saturation with standard logic drive levels. |
| Ptot | 250 mW at Tamb ≤ 25 °C: Total power dissipation limit defines thermal design envelope on FR4 PCB with standard footprint. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package: 3-lead, 1.9 mm × 1.1 mm × 1.3 mm body, 0.95 mm lead pitch, reflow-solder compatible footprint per Figure 18.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1 and R2; accepts logic-level voltage to control transistor conduction state. |
| 2 | GND (emitter) | Common reference node; ties to system ground; carries full load current in high-side switch configuration. |
| 3 | Output (collector) | Switched output node; connects to load (e.g., LED anode or IC input); sinks current when active. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in bias resistors | R1 = 4.7 kΩ, R2 = 4.7 kΩ (R2/R1 = 1.0 typ.): Eliminates two external resistors, reducing BOM count and layout area by ≥30%. |
| AEC-Q101 qualification | Qualified per Automotive Electronics Council stress test standard: Enables use in engine control, body electronics, and ADAS modules without additional qualification effort. |
| Low VCEsat | −150 mV max at rated current: Reduces power dissipation by >40% vs. discrete BC857 + two resistors at same load current. |
| Small SOT23 footprint | 1.9 × 1.1 mm body: Saves PCB space versus SOIC-8 or SC-70 alternatives while maintaining hand-solderability and pick-and-place compatibility. |
| High fT | 180 MHz typical: Supports clean edge transitions in 25 MHz clock distribution or PWM dimming circuits without added gate drivers. |
Applications
| Automotive Body Control Module | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Level-shifting and current-limiting of 12 V sensor signals into 3.3 V microcontroller GPIOs. IC Role / Device Role / Timing Role: PNP switch configured as high-side level translator with integrated bias network. Use Value: Eliminates need for external pull-up/pull-down resistors and reduces signal path propagation delay by 1.2 ns vs. discrete solution. |
Use Scenario: Isolating and debouncing 24 V dry-contact inputs in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Digital input buffer with hysteresis provided by internal resistor ratio. Use Value: Achieves <1 µs response time and withstands ±1 kV ESD per IEC 61000-4-2 due to integrated protection topology. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Equipment Signal Gating |
Use Scenario: Enabling 5 V auxiliary rails only after main 12 V supply stabilizes in smart HVAC controllers. IC Role / Device Role / Timing Role: Power-enable switch controlled by supervisor IC output. Use Value: Delivers 100 mA drive capability with <50 mV dropout, ensuring stable enable timing across −40 °C to +85 °C. |
Use Scenario: Gating analog sensor excitation pulses in portable ultrasound front-ends to minimize crosstalk. IC Role / Device Role / Timing Role: Fast-turnoff switch isolating excitation source during receive phase. Use Value: 180 MHz fT enables sub-10 ns rise/fall times, reducing pulse leakage by 18 dB compared to BC857-based designs. |
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 |
|---|---|---|---|
| PDTC143ET,215 | NPN complement with identical R1/R2 values and SOT23 package; VCEO = +50 V, IO = +100 mA. | Requires inverted logic drive and low-side switching topology instead of high-side. | Select when load must be connected to VCC rather than ground, or when interfacing with NPN-compatible driver stages. |
| BC857B,215 | Discrete PNP transistor without built-in resistors; requires two external 4.7 kΩ resistors; same SOT23 package. | Higher BOM count and larger layout area; no guaranteed R2/R1 matching or temperature tracking. | Choose only if precise resistor tolerance or thermal drift matching is unnecessary and board space is not constrained. |
Compared with PDTC143ET,215, PDTA143ET,215 provides native high-side switching and logic-compatible input polarity; versus BC857B,215, it reduces component count by two resistors and improves production yield via monolithic bias integration.
Availability
PDTA143ET,215 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, and medical diagnostic equipment requiring stable component supply, AEC-Q101 compliance, and SOT23 footprint consistency.
Supply support for PDTA143ET,215 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-grade components and advanced packaging technologies.
PDTA143ET,215 belongs to the AEC-Q101-qualified RET family designed specifically for cost-sensitive, space-constrained digital switching in automotive and industrial control systems where reliability and assembly efficiency are critical.
FAQ
What is the maximum operating temperature for PDTA143ET,215?
The junction temperature (Tj) is rated up to 150 °C, and the ambient temperature range is −65 °C to +150 °C. Derating begins above 25 °C ambient per the 500 K/W Rth(j-a) thermal resistance curve; at 85 °C ambient, maximum continuous power drops to ~150 mW.
Can PDTA143ET,215 replace BC857 in existing designs without layout changes?
Yes - it uses the same SOT23 (TO-236AB) package with identical pinout (pin 1 = base, pin 2 = emitter, pin 3 = collector), enabling drop-in replacement. However, verify that the input logic polarity matches: PDTA143ET,215 turns on with low input (PNP RET), whereas BC857 requires base current injection.
Is reflow soldering mandatory for PDTA143ET,215?
Yes - Nexperia specifies reflow soldering as the only recommended method. Wave soldering is not qualified and may damage the internal resistor network or cause delamination. Reflow profile must comply with JEDEC J-STD-020 Class 3 requirements, peak temperature ≤ 260 °C.
What does the marking "*01" indicate on PDTA143ET,215 devices?
The marking "*01" consists of a manufacturing site code (single character placeholder "*") followed by "01", which identifies the PDTA143ET variant within the RET series. This matches Table 5 in the datasheet and is used for traceability and lot control - not functional differentiation.
PDTA143ET,215 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):
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTA143ET,215 FAQ
1.How can I place an order for PDTA143ET,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA143ET,215 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 PDTA143ET,215 reliable?
The price and inventory of PDTA143ET,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA143ET,215 is usually 5 days.
3.What payment methods are accepted for PDTA143ET,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA143ET,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA143ET,215?
PDTA143ET,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA143ET,215 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 PDTA143ET,215?
For technical support, including PDTA143ET,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA143ET,215 requirements.
6.How does Aetrix verify that PDTA143ET,215 is sourced from the original manufacturer or authorized distributors?
All PDTA143ET,215 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 PDTA143ET,215 meets industry standards.
7.What is the process for return or replacement of PDTA143ET,215?
All PDTA143ET,215 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA143ET,215, 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 PDTA143ET,215 part is unused and in its original packaging.
Return procedure for PDTA143ET,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA143ET,215 Tags

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MUN5211T1G
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