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Nexperia USA Inc. PDTA144EU/ZLF
- Part No.:
- PDTA144EU/ZLF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTA144EU/ZLF.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:4,617
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Product details
Overview
PDTA144EU/ZLF 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, −100 mA IO, and AEC-Q101 qualification - used in automotive input control and industrial logic-level signal conditioning.
For engineers reviewing the PDTA144EU/ZLF datasheet, PDTA144EU/ZLF pinout, PDTA144EU/ZLF application, or PDTA144EU/ZLF equivalent, key selection criteria include guaranteed PNP RET functionality, integrated 47 kΩ/47 kΩ resistor ratio, −100 mA output capability, SOT323 thermal performance (Rth(j-a) = 625 K/W), and AEC-Q101 compliance for automotive-grade reliability.
Technical Context
This PNP RET integrates two precision bias resistors (R1 = 47 kΩ, R2/R1 = 1.0 typ.) to eliminate external base components, enabling direct TTL/CMOS-level drive of the input terminal. Its −150 mV VCE(sat) at −10 mA/−0.5 mA ensures low-loss switching in digital interface circuits.
The device operates across −65 °C to +150 °C ambient, supports reflow-only soldering per JEDEC J-STD-020, and delivers stable hFE ≥ 80 at −5 mA collector current - optimized for high-volume, space-constrained PCBs where discrete BJT + resistor combinations would increase assembly cost and footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - maximum safe collector-emitter voltage under open-base condition, enabling use in 24 V automotive supply rails with margin. |
| IO | −100 mA - guaranteed continuous output current, sufficient for driving LED indicators, small relays, or IC enable inputs. |
| R1 | 47 kΩ (33–61 kΩ range) - internal base-input resistor sets input impedance and enables direct connection to 3.3 V/5 V logic without external pull-up/down. |
| R2/R1 | 1.0 (0.8–1.2) - matched resistor ratio ensures predictable turn-on threshold and stable saturation behavior across temperature. |
| VCE(sat) | −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. - transition frequency supports fast digital switching up to ~10 MHz edge rates without significant gain roll-off. |
| Ptot | 200 mW at Tamb = 25 °C - total power dissipation limit defines thermal derating curve for SOT323 mounting on FR4 PCB. |
| AEC-Q101 | Qualified - certified for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. |
Pinout & Package
PDTA144EU/ZLF uses the SOT323 (SC-70) surface-mount plastic package: 1.7 mm × 1.3 mm × 0.95 mm body, 3-terminal leaded configuration, optimized for high-density routing and automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level voltage (VI(on) ≤ −1.6 V, VI(off) ≥ −1.2 V) to control conduction state. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common reference for input and output paths in low-side switch configurations. |
| 3 | Output (collector) | Switched PNP output node; sinks current when active, compatible with open-collector loads or pull-up driven peripherals. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Matched R1 = R2 = 47 kΩ eliminates need for two external resistors, reducing BOM count and PCB area by >50% vs. discrete BJT + resistors. |
| Automotive qualification | AEC-Q101 qualified - validated for temperature cycling, humidity, mechanical shock, and ESD per automotive reliability standards. |
| Low saturation voltage | VCE(sat) ≤ −150 mV ensures <15 mW power loss at 100 mA load, critical for thermally constrained modules like door control units. |
| Small-footprint packaging | SOT323 (SC-70) occupies only 2.2 mm² board area - ideal for space-limited applications such as camera modules and infotainment PCBs. |
| Digital interface optimization | VI(on)/VI(off) thresholds aligned with 3.3 V/5 V logic families, enabling direct interfacing with microcontrollers and FPGAs without level-shifting. |
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 GPIO pins. IC Role / Device Role / Timing Role: PNP RET acts as a high-side level translator and current-limiting interface, providing galvanic decoupling and noise immunity. Use Value: Eliminates need for separate base resistor network and reduces component count by two per channel, lowering assembly cost and failure points. |
Use Scenario: Driving optocoupler inputs in isolated digital input cards for factory automation systems. IC Role / Device Role / Timing Role: Digital switch that conditions 24 V field signals into clean, low-current pulses for downstream isolation stages. Use Value: −100 mA output capability and −50 V VCEO support robust operation in noisy industrial environments with voltage transients. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Device Logic Interface |
Use Scenario: Enabling sequential power-up of subsystems (e.g., display backlight before main processor) using microcontroller GPIO. IC Role / Device Role / Timing Role: Low-power, fast-turn-on PNP switch controlling enable lines of DC-DC converters and LDOs. Use Value: 180 MHz fT and sub-μs switching ensure precise timing alignment between power domains during boot sequences. |
Use Scenario: Isolating patient-connected analog front-end circuitry from digital control logic in portable diagnostic tools. IC Role / Device Role / Timing Role: Signal gate that prevents backfeed and provides fail-safe shutdown of analog sections during firmware reset. Use Value: AEC-Q101 qualification correlates with high reliability and long-term stability required for Class II medical equipment lifecycle management. |
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 specs except polarity and current direction. | Used where low-side switching or sink-driven logic is preferred over high-side sourcing. | Select when interfacing with open-drain outputs or requiring inverted logic polarity relative to PDTA144EU. |
| BC857BW | Discrete PNP BJT without integrated resistors; requires external RB and RBE; same SOT323 footprint but higher assembly complexity. | Offers greater design flexibility for custom biasing but increases BOM and layout effort. | Choose only if variable gain, adjustable switching threshold, or non-standard resistor ratios are required. |
Compared with PDTC144EU, PDTA144EU provides sourcing capability and matches automotive logic interface requirements directly; versus BC857BW, it reduces bill-of-materials count and improves production yield by eliminating two passive components per channel.
Availability
PDTA144EU/ZLF is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and consumer appliance power sequencing requiring stable component supply and AEC-Q101 assurance.
Supply support for PDTA144EU/ZLF 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 standard products including logic, discretes, MOSFETs, and ESD protection devices.
The PDTA144E series belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically for cost-sensitive, space-constrained digital switching in automotive and industrial control systems.
FAQ
What is the function of Pin 1 and how is it biased?
Pin 1 is the input terminal connected internally to the 47 kΩ base resistor (R1). It accepts logic-level voltages: VI(on) ≤ −1.6 V turns the transistor on, while VI(off) ≥ −1.2 V ensures reliable cutoff. No external biasing is needed due to the integrated R1–R2 network.
Can PDTA144EU/ZLF replace BC857B in existing designs?
Yes - as a drop-in replacement in most digital switching roles, provided the circuit uses high-side sourcing and does not require adjustable base bias. The built-in 47 kΩ resistors simplify layout and reduce component count, but VI(on)/VI(off) thresholds differ slightly from BC857B's discrete biasing.
What is the maximum allowable ambient temperature during continuous operation?
The device supports continuous operation from −65 °C to +150 °C ambient, but power derating applies above 25 °C. At 85 °C ambient, maximum power dissipation drops to ~120 mW based on the 625 K/W junction-to-ambient thermal resistance for SOT323 on FR4 PCB.
Is reflow soldering mandatory, and what profile should be used?
Yes - reflow soldering is the only recommended method per Nexperia's specification. Use JEDEC J-STD-020-compliant profiles: peak temperature ≤ 260 °C, time above liquidus 60–150 s, and ramp rate ≤ 3 °C/s. Wave soldering is not supported for this part.
PDTA144EU/ZLF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 180 MHz
- Power - Max:
- 200 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTA144EU/ZLF FAQ
1.How can I place an order for PDTA144EU/ZLF through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA144EU/ZLF 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/ZLF reliable?
The price and inventory of PDTA144EU/ZLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA144EU/ZLF is usually 5 days.
3.What payment methods are accepted for PDTA144EU/ZLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA144EU/ZLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA144EU/ZLF?
PDTA144EU/ZLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA144EU/ZLF 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/ZLF?
For technical support, including PDTA144EU/ZLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA144EU/ZLF requirements.
6.How does Aetrix verify that PDTA144EU/ZLF is sourced from the original manufacturer or authorized distributors?
All PDTA144EU/ZLF 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/ZLF meets industry standards.
7.What is the process for return or replacement of PDTA144EU/ZLF?
All PDTA144EU/ZLF units undergo pre-shipment inspection (PSI). If there is an issue with PDTA144EU/ZLF, 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/ZLF part is unused and in its original packaging.
Return procedure for PDTA144EU/ZLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA144EU/ZLF Tags
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MUN5211T1G
onsemi
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DTC043ZEBTL
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DTC114EKAT146
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DRDNB16W-7
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MMUN2211LT1G
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