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Nexperia USA Inc. PDTA144EU,135
- Part No.:
- PDTA144EU,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTA144EU,135.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:9,885
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Product details
Overview
PDTA144EU,135 from Nexperia is a PNP resistor-equipped transistor (RET) in SOT323 (SC-70) package, designed for digital switching applications with built-in bias resistors R1 = 47 kΩ and R2 = 47 kΩ, −50 V VCEO rating, −100 mA output current capability, and AEC-Q101 qualification for automotive use.
For engineers reviewing the PDTA144EU,135 datasheet, PDTA144EU,135 pinout, PDTA144EU,135 application, or PDTA144EU,135 equivalent, key selection factors include its integrated base-emitter and base-collector bias network, low VI(on)/VI(off) thresholds, thermal resistance of 625 K/W, and compatibility with reflow-only assembly on FR4 PCBs.
Technical Context
This PNP RET integrates two precision bias resistors (R1 = 47 kΩ, R2/R1 = 1.0 typ.) to eliminate external components for digital input control, enabling direct interface with CMOS/TTL logic. Its −150 mV VCEsat at IC = −10 mA / IB = −0.5 mA ensures low-loss switching in load control circuits.
The device operates across −65 °C to +150 °C ambient, supports 200 mW total power dissipation at Tamb ≤ 25 °C, and delivers hFE ≥ 80 at VCE = −5 V / IC = −5 mA - optimized for stable gain in signal-level digital switching rather than linear amplification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum safe collector-emitter voltage with base open; defines high-side switch blocking capability. |
| IO | −100 mA: Continuous DC output current; supports driving moderate digital loads like LED indicators or small relays. |
| R1 | 47 kΩ (typ.): Input bias resistor value; sets base current for predictable turn-on without external resistor calculation. |
| VCEsat | −150 mV (max.): Low saturation voltage at rated current; minimizes conduction loss and self-heating during ON state. |
| VI(on) | −1.6 V (typ.): On-state input voltage threshold; ensures reliable activation from standard 3.3 V or 5 V logic outputs. |
| VI(off) | −1.2 V (typ.): Off-state input voltage threshold; provides noise margin against false triggering in noisy environments. |
| Ptot | 200 mW (at Tamb ≤ 25 °C): Power handling limit on standard FR4 PCB; determines maximum sustained switching duty cycle. |
| Rth(j-a) | 625 K/W: Junction-to-ambient thermal resistance; informs derating requirements above 25 °C ambient. |
Pinout & Package
SOT323 (SC-70) surface-mount plastic package: 1.3 mm × 2.1 mm × 0.95 mm body, 3-lead configuration, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | input (base) | Connected internally to R1 and R2; accepts logic-level drive signal directly without external biasing. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common reference for both input and output paths. |
| 3 | output (collector) | Switched output node; sinks current from load connected between VCC and pin 3 when active. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | R1 = 47 kΩ, R2 = 47 kΩ enables single-pin logic control - eliminates 2 external resistors and reduces BOM count. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A114. |
| Reflow-only assembly | Designed exclusively for Pb-free reflow soldering (JEDEC J-STD-020); not suitable for wave or hand soldering. |
| Low VI(on)/VI(off) spread | VI(on) = −1.6 V / VI(off) = −1.2 V (typ.) provides 400 mV hysteresis margin for robust noise immunity. |
| High hFE consistency | hFE ≥ 80 at −5 mA collector current ensures predictable gain across production lots and temperature range. |
Applications
| Automotive Door Module Control | Industrial PLC Digital Input Interface |
|---|---|
Use Scenario: Switching 12 V indicator LEDs and small solenoids in vehicle door modules under harsh temperature and vibration conditions. IC Role / Device Role / Timing Role: PNP RET acts as a grounded-emitter high-side switch, controlled by MCU GPIO pins. Use Value: Eliminates need for discrete base resistors and level shifters, reducing PCB area by >30% and improving assembly yield. |
Use Scenario: Interfacing 24 V industrial field sensors to 3.3 V/5 V microcontroller inputs in programmable logic controllers. IC Role / Device Role / Timing Role: Level-shifting and current-limiting digital buffer that protects MCU I/O from overvoltage transients. Use Value: Built-in resistor ratio ensures consistent input impedance and prevents latch-up during ESD events per IEC 61000-4-2. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Equipment Status Indication |
Use Scenario: Enabling sequential power-up of subsystems (e.g., display backlight, sensor array) in smart home appliances. IC Role / Device Role / Timing Role: Digital enable switch controlling PMIC enable pins or MOSFET gate drivers. Use Value: −150 mV VCEsat minimizes voltage drop across switch, preserving tight supply rail tolerances during sequencing. |
Use Scenario: Driving isolated LED status indicators in battery-powered portable diagnostic devices requiring low standby current. IC Role / Device Role / Timing Role: Low-leakage digital output stage with ICEO < −1 μA at 150 °C junction temperature. Use Value: Enables >10-year shelf life in sealed enclosures by limiting quiescent current drain below 100 nA typical. |
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 |
|---|---|---|---|
| PDTC144EU | NPN complement with identical R1/R2 values, SOT323 package, and matching thermal specs. | Requires inverted logic drive (active-high vs. active-low), limiting direct substitution in high-side configurations. | Select when circuit topology uses NPN-based sinking logic or requires complementary pairing with PDTA144EU. |
| BC807-40,215 | Standard PNP BJT without integrated resistors; requires external base bias network and occupies larger SOT23 footprint. | Offers higher hFE (250 min.) but increases component count, layout complexity, and risk of incorrect biasing. | Choose only if precise gain control or adjustable biasing is required beyond fixed RET functionality. |
Compared with PDTC144EU, PDTA144EU provides native high-side switching with non-inverted logic control; versus BC807-40, it reduces design iteration time and improves manufacturing repeatability by embedding biasing into the die.
Availability
PDTA144EU,135 is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC interfaces, consumer appliance power sequencing, and medical diagnostic equipment requiring stable component supply and AEC-Q101 compliance.
Supply support for PDTA144EU,135 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 and logic devices for automotive, industrial, and consumer markets.
The PDTA144EU belongs to the AEC-Q101-qualified PNP resistor-equipped transistor series, engineered specifically to replace legacy BC847/857 designs in digital switching applications while reducing bill-of-materials and assembly cost.
FAQ
What is the maximum allowable continuous collector current for PDTA144EU,135?
The maximum continuous collector current is −100 mA, specified under conditions where ambient temperature remains ≤25 °C and the device is mounted on a standard FR4 PCB with single-sided copper. At higher temperatures, derating applies per the 625 K/W thermal resistance curve - e.g., at 85 °C ambient, max current drops to approximately −65 mA to maintain Tj ≤ 150 °C.
Can PDTA144EU,135 be used in place of a standard PNP transistor like BC857?
Yes, but only in digital switching roles where its integrated 47 kΩ bias resistors match the required base drive. It cannot replace BC857 in linear amplifier or analog feedback applications due to fixed internal resistors and lower hFE range. For direct replacement in logic-controlled switches, verify that VI(on)/VI(off) thresholds align with your controller's output voltage levels.
Is wave soldering supported for PDTA144EU,135?
No. The datasheet explicitly states that reflow soldering is the only recommended method. Wave soldering is not qualified and may cause internal damage due to thermal stress on the molded SOT323 package and die attach. Reflow profiles must comply with JEDEC J-STD-020 Class 3a specifications for Pb-free processes.
Does PDTA144EU,135 support bidirectional signal routing?
No. As a PNP resistor-equipped transistor, it functions strictly as a unidirectional current sink (emitter-grounded, collector-switched). Its internal resistor network and polarity prevent reverse conduction or AC coupling. Signal routing must follow the defined input (pin 1), ground (pin 2), and output (pin 3) path with proper DC biasing.
PDTA144EU,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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):
- 47 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 200 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTA144EU,135 FAQ
1.How can I place an order for PDTA144EU,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA144EU,135 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 PDTA144EU,135 reliable?
The price and inventory of PDTA144EU,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA144EU,135 is usually 5 days.
3.What payment methods are accepted for PDTA144EU,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA144EU,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA144EU,135?
PDTA144EU,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA144EU,135 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 PDTA144EU,135?
For technical support, including PDTA144EU,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA144EU,135 requirements.
6.How does Aetrix verify that PDTA144EU,135 is sourced from the original manufacturer or authorized distributors?
All PDTA144EU,135 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 PDTA144EU,135 meets industry standards.
7.What is the process for return or replacement of PDTA144EU,135?
All PDTA144EU,135 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA144EU,135, 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 PDTA144EU,135 part is unused and in its original packaging.
Return procedure for PDTA144EU,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA144EU,135 Tags
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MUN5211T1G
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