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NXP Semiconductors PDTA143EM,315
- Part No.:
- PDTA143EM,315
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- -
- Datasheet:
-
PDTA143EM,315.pdf
- Description:
- TRANS PNP W/RES 50V SOT-883
- Quantity:
- Payment:
- Shipping:
Inventory:140,000
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Product details
Overview
PDTA143EM from Nexperia is a PNP resistor-equipped transistor (RET) in a leadless ultra-small SOT883 (SC-101) 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 PDTA143EM datasheet, PDTA143EM pinout, PDTA143EM application, or PDTA143EM equivalent, key selection criteria include its integrated base-emitter and base-collector resistors, thermal resistance of 500 K/W, −150 mV VCEsat at IC = −10 mA/IB = −0.5 mA, and suitability as a cost-saving alternative to BC857-series transistors in space-constrained digital control circuits.
Technical Context
This PNP RET integrates two precision bias resistors (R1 = 4.7 kΩ, R2/R1 = 1.0 typ.) directly into the die assembly, eliminating external base resistors and reducing PCB footprint. Its internal transistor exhibits hFE ≥30 at IC = −10 mA and VCE = −5 V, with fT = 180 MHz at IC = −10 mA.
The device operates across −65 °C to +150 °C ambient temperature, supports reflow-only soldering per JEDEC J-STD-020, and delivers 250 mW total power dissipation on FR4 PCB with 70 μm copper strip line - enabled by its 1.0 × 0.6 × 0.5 mm body size and optimized thermal path in SOT883.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum safe collector-emitter voltage with open base; defines off-state blocking capability in high-side switch configurations. |
| IO | −100 mA - Continuous DC output current limit; supports driving logic inputs or small loads like LEDs and relays without external current limiting. |
| R1 | 4.7 kΩ (typ.) - Integrated input bias resistor; sets base current for predictable turn-on behavior without discrete resistor placement. |
| VCEsat | −150 mV (max.) at IC = −10 mA/IB = −0.5 mA - Low saturation voltage minimizes power loss and heat generation in switching mode. |
| Ptot | 250 mW - Total power dissipation rating on FR4 PCB with 70 μm copper; enables reliable operation in compact automotive and industrial modules. |
| Rth(j-a) | 500 K/W - Junction-to-ambient thermal resistance; determines temperature rise under load and informs derating requirements above 25 °C. |
| AEC-Q101 | Qualified - Meets automotive-grade stress test requirements for discrete semiconductors, supporting deployment in engine control, body electronics, and ADAS subsystems. |
Pinout & Package
SOT883 (SC-101) is a leadless ultra-small plastic package with 3 solder lands, body dimensions 1.0 × 0.6 × 0.5 mm, optimized for high-density PCB layouts and automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | input (base) | Connected internally to R1 and R2; accepts TTL/CMOS-compatible logic-level drive without external bias network. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common reference for both input and output paths in low-side switching configurations. |
| 3 | output (collector) | Switched output node; sinks current from load to emitter when biased; compatible with 3.3 V and 5 V digital interface levels. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | R1 = 4.7 kΩ, R2 = 4.7 kΩ - Eliminates two external components, reduces BOM count, and ensures consistent biasing across production lots. |
| Ultra-small footprint | SOT883 package (1.0 × 0.6 mm) - Enables placement in tight spaces such as automotive sensor modules and portable industrial controllers. |
| Automotive qualification | AEC-Q101 compliant - Validated for temperature cycling, humidity, and mechanical stress required in automotive under-hood and cabin applications. |
| Low VCEsat | −150 mV max. at rated current - Reduces conduction losses and self-heating, improving efficiency in battery-powered and thermally constrained systems. |
| Reflow-only assembly | JEDEC J-STD-020 compliant - Supports standard surface-mount reflow processes without risk of damage, simplifying manufacturing flow. |
Applications
| Automotive Body Control Module | Industrial PLC Input Stage |
|---|---|
Use Scenario: Level-shifting and isolation of 12 V sensor signals into 3.3 V microcontroller GPIOs in door module ECUs. IC Role / Device Role / Timing Role: PNP switch configured as high-side driver for optocoupler input or direct MCU interface with built-in current limiting. Use Value: Eliminates need for discrete base resistor pair, reduces PCB area by >30% vs. BC857 + two 4.7 kΩ resistors, and meets AEC-Q101 for 15-year vehicle lifecycle. |
Use Scenario: Digital input conditioning for 24 V industrial fieldbus nodes where noise immunity and fast response are critical. IC Role / Device Role / Timing Role: Signal inversion and current limiting stage before Schmitt-trigger input buffer; provides clean edge detection. Use Value: Built-in R1/R2 ratio of 1.0 ensures stable switching threshold at 24 V, while −100 mA IO supports multiple parallel inputs without loading. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Sensor Interface |
Use Scenario: Controlled enable/disable of auxiliary power rails (e.g., display backlight, fan controller) during boot-up and shutdown sequences. IC Role / Device Role / Timing Role: Low-power PNP switch driven by MCU GPIO to gate 5 V rail to downstream peripherals. Use Value: −150 mV VCEsat minimizes voltage drop and heat generation, enabling use in sealed enclosures without heatsinking. |
Use Scenario: Isolation and signal conditioning of analog sensor outputs (e.g., temperature, pressure) before ADC sampling in portable diagnostic tools. IC Role / Device Role / Timing Role: Digital enable gate for analog front-end power domain; prevents leakage and crosstalk during standby. Use Value: ICEO ≤ −1 μA at VCE = −30 V ensures <100 nA standby current, extending battery life in Class II medical devices with strict power budgets. |
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 |
|---|---|---|---|
| PDTC143EM | NPN complement with identical R1/R2 values, SOT883 package, same thermal and electrical ratings. | Requires inverted logic drive; used where active-high control or NPN topology is preferred in the same PCB layout. | Select when circuit requires sourcing current instead of sinking, or when matching existing NPN-based design conventions. |
| BC857B,215 | Discrete PNP BJT (no built-in resistors); SOT23 package; higher VCEO (−65 V), lower hFE (200–450), no AEC-Q101 qualification. | Needs two external 4.7 kΩ resistors; occupies larger PCB area; suitable for non-automotive industrial use only. | Choose only if higher voltage margin or wider hFE range is required, and AEC-Q101 compliance is not mandatory. |
Compared with PDTC143EM, PDTA143EM provides native PNP logic-level switching with automotive qualification, whereas BC857B requires external biasing and lacks qualification - making PDTA143EM the optimal choice for space- and reliability-critical automotive digital interfaces.
Availability
PDTA143EM is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, and portable medical diagnostics requiring stable component supply, AEC-Q101 compliance, and ultra-compact packaging.
Supply support for PDTA143EM 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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The PDTA143EM belongs to Nexperia's PNP Resistor-Equipped Transistor (RET) series, engineered to replace traditional BJT + resistor combinations in digital switching applications across automotive, industrial, and consumer markets.
FAQ
What is the maximum operating temperature for PDTA143EM?
The PDTA143EM has a junction temperature limit of 150 °C and an ambient operating range of −65 °C to +150 °C. Its thermal resistance (Rth(j-a) = 500 K/W) means that at 25 °C ambient and 250 mW dissipation, junction temperature rises to 150 °C - confirming full-rated operation only below 25 °C ambient unless derated per Figure 1 power derating curve.
Can PDTA143EM be used as a direct replacement for BC857 in existing designs?
Yes, but with layout and drive adjustments: PDTA143EM integrates R1 and R2, so external base resistors must be removed. Its SOT883 footprint differs from BC857's SOT23, requiring PCB redesign. Electrical compatibility is confirmed - VCEO (−50 V), IO (−100 mA), and VCEsat (−150 mV) meet or exceed BC857B specs, and AEC-Q101 adds automotive robustness.
What is the significance of the R2/R1 ratio being 1.0 in PDTA143EM?
An R2/R1 ratio of 1.0 (typ.) means the internal feedback resistor equals the input bias resistor, resulting in predictable base current division and stable switching thresholds across process and temperature variations. This ensures consistent VI(on) (−1.9 V typ.) and VI(off) (−1.1 V typ.), critical for reliable interfacing with 3.3 V and 5 V logic families without additional level-shifting.
Is reflow soldering mandatory for PDTA143EM, and why?
Yes - Nexperia specifies reflow soldering as the only recommended method for PDTA143EM due to its SOT883 leadless construction and thermal sensitivity. Wave soldering risks thermal shock and solder bridging on the 0.3 mm pitch solder lands. Reflow profiles must comply with JEDEC J-STD-020, peak temperature ≤260 °C, and ramp rates within specified limits to prevent delamination or voiding.
PDTA143EM,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- Frequency - Transition:
- -
- Power - Max:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PDTA143EM,315 FAQ
1.How can I place an order for PDTA143EM,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA143EM,315 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 PDTA143EM,315 reliable?
The price and inventory of PDTA143EM,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA143EM,315 is usually 5 days.
3.What payment methods are accepted for PDTA143EM,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA143EM,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA143EM,315?
PDTA143EM,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA143EM,315 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 PDTA143EM,315?
For technical support, including PDTA143EM,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA143EM,315 requirements.
6.How does Aetrix verify that PDTA143EM,315 is sourced from the original manufacturer or authorized distributors?
All PDTA143EM,315 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 PDTA143EM,315 meets industry standards.
7.What is the process for return or replacement of PDTA143EM,315?
All PDTA143EM,315 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA143EM,315, 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 PDTA143EM,315 part is unused and in its original packaging.
Return procedure for PDTA143EM,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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