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Nexperia USA Inc. PDTA144EU/ZLX
- Part No.:
- PDTA144EU/ZLX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTA144EU/ZLX.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,067
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Product details
Overview
PDTA144EU/ZLX 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/ZLX datasheet, PDTA144EU/ZLX pinout, PDTA144EU/ZLX application, or PDTA144EU/ZLX equivalent, key selection criteria include input/output voltage thresholds (VI(on) = −1.6 V typ, VI(off) = −1.2 V typ), thermal resistance (Rth(j-a) = 625 K/W), saturation performance (VCEsat = −150 mV max at IC = −10 mA/IB = −0.5 mA), and SOT323 footprint compatibility in space-constrained PCB layouts.
Technical Context
This PNP RET integrates two precision bias resistors (R1 = 47 kΩ, R2/R1 = 1.0 typ) to eliminate external base resistors, enabling direct logic-level drive from microcontrollers or gate drivers. Its −100 mA continuous output current and −50 V collector-emitter breakdown support robust load switching in low-voltage automotive subsystems.
The device operates with defined on/off-state input voltages (VI(on) ≤ −1.6 V, VI(off) ≥ −1.2 V at specified conditions), ensuring reliable digital interface behavior without external level-shifting. Its AEC-Q101 qualification confirms suitability for under-hood and body-control module environments where temperature cycling and long-term reliability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum safe collector-emitter voltage with open base; defines upper rail limit for switching loads in 12 V/24 V automotive systems. |
| IO | −100 mA - Continuous output current capability; supports driving LEDs, relays, or small solenoids directly from logic outputs. |
| R1 | 47 kΩ (typ) - Integrated base-input resistor; eliminates need for external pull-up/pull-down, reducing BOM count and layout area. |
| VCEsat | −150 mV (max at IC = −10 mA, IB = −0.5 mA) - Low saturation voltage minimizes power loss and heat generation during active conduction. |
| VI(on) | −1.6 V (typ at VCE = −0.3 V, IC = −2 mA) - Threshold at which transistor reliably turns on; compatible with 3.3 V and 5 V CMOS/TTL logic families. |
| Rth(j-a) | 625 K/W - Junction-to-ambient thermal resistance on FR4 PCB; determines maximum allowable power dissipation (200 mW) at 25 °C ambient. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock per AEC standard. |
Pinout & Package
PDTA144EU/ZLX is housed in a SOT323 (SC-70) plastic surface-mounted package measuring 2.2 mm × 1.35 mm × 1.15 mm, optimized for high-density PCB layouts and reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level control signal; requires no external bias network. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common return path for load current and bias network. |
| 3 | Output (collector) | Switched output node; connects to load (e.g., LED anode or relay coil); sinks current when active. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | R1 = 47 kΩ, R2 = 47 kΩ - Eliminates two external components, reducing placement cost and board area by ~1.5 mm² per instance. |
| Digital switching optimization | VI(on)/VI(off) window of −1.6 V to −1.2 V - Ensures clean logic transition with noise margin against supply ripple in 3.3 V systems. |
| Automotive qualification | AEC-Q101 certified - Validated for operation from −65 °C to +150 °C junction temperature; suitable for engine control, lighting, and body electronics. |
| Low saturation loss | VCEsat ≤ −150 mV at rated current - Limits conduction power loss to ≤1.5 mW at 10 mA, easing thermal management in sealed modules. |
| SOT323 footprint | Standard SC-70 land pattern - Enables drop-in replacement for BC857-family transistors while maintaining compatibility with existing pick-and-place tooling. |
Applications
| Automotive LED Lighting Control | Industrial Digital I/O Buffer |
|---|---|
Use Scenario: Driving CAN-bus-linked LED status indicators in vehicle door modules. IC Role / Device Role / Timing Role: PNP switch sinking current from 12 V rail through LED to ground; controlled by 3.3 V microcontroller GPIO. Use Value: Built-in R1/R2 enables direct GPIO drive without level shifters or discrete resistors, reducing component count by 2 and saving 1.2 mm² PCB area per channel. |
Use Scenario: Isolating PLC digital output signals driving 24 V solenoid valves. IC Role / Device Role / Timing Role: Logic-level translator and current amplifier; converts 5 V TTL output into −100 mA capable 24 V sink driver. Use Value: −50 V VCEO rating and AEC-Q101 qualification ensure robust operation in electrically noisy industrial environments with fast transient suppression. |
| Consumer Appliance Power Sequencing | Medical Device Status Indicator |
Use Scenario: Enabling power rails in smart home HVAC controllers using microcontroller wake-up signals. IC Role / Device Role / Timing Role: Enable switch for LDO regulators; activated by low-power MCU during boot sequence. Use Value: VI(off) ≥ −1.2 V ensures stable off-state under 3.3 V standby bias, preventing false turn-on during brown-out conditions. |
Use Scenario: Driving bi-color LED indicators in portable diagnostic equipment powered by Li-ion batteries. IC Role / Device Role / Timing Role: Low-power current sink for dual-LED polarity switching; operated from 3.3 V SoC GPIO. Use Value: 200 mW power dissipation limit and 625 K/W thermal resistance allow continuous operation within 40 °C ambient rise in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP digital switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC144EU | NPN complement with identical R1/R2 values, SOT323 package, and matching specs except polarity. | Requires inverted logic drive and sourcing (not sinking) configuration; unsuitable for high-side switching without level translation. | Select when circuit topology demands NPN logic-sink behavior or complementary pairing with PDTA144EU in push-pull stages. |
| BC857B,215 | Discrete PNP BJT without integrated resistors; requires external R1/R2; same SOT323 package and −50 V/−100 mA ratings. | Higher BOM count and layout complexity; lacks guaranteed VI(on)/VI(off) thresholds due to hFE variation across lots. | Choose only if precise resistor ratio control is unnecessary and design allows manual bias tuning for gain stability. |
Compared with PDTC144EU, PDTA144EU provides native PNP sink functionality with guaranteed input thresholds, while BC857B requires external biasing and offers no inherent noise immunity-making PDTA144EU preferable for deterministic digital interface design in automotive and industrial controls.
Availability
PDTA144EU/ZLX is available at Aetrix Electronics and suitable for automotive LED control, industrial digital I/O buffering, consumer appliance power sequencing, and medical device status indication requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PDTA144EU/ZLX 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.
PDTA144EU/ZLX belongs to the AEC-Q101-qualified PNP resistor-equipped transistor series, engineered specifically for simplified digital switching in space- and cost-constrained automotive and industrial control systems.
FAQ
What is the maximum operating temperature for PDTA144EU/ZLX?
The junction temperature (Tj) limit is 150 °C, with ambient operating range from −65 °C to +150 °C. Derating begins above 25 °C ambient per the 625 K/W thermal resistance curve; at 85 °C ambient, maximum continuous power drops to ~120 mW to maintain Tj ≤ 150 °C.
Can PDTA144EU/ZLX replace BC857B in existing designs?
Yes, as a direct SOT323 footprint replacement, but with key differences: PDTA144EU integrates R1/R2 = 47 kΩ each, eliminating two external resistors and providing guaranteed VI(on)/VI(off) thresholds. No schematic changes are needed beyond removing the discrete bias network.
Is reflow soldering required for PDTA144EU/ZLX?
Yes-reflow soldering is the only recommended method per Nexperia's specification. Wave soldering is not qualified for this device. The SOT323 footprint supports standard lead-free reflow profiles (peak 260 °C, 30 s max above 217 °C), with solder paste stencil dimensions provided in Figure 20 of the datasheet.
Does PDTA144EU/ZLX support 1.8 V logic drive?
No-its VI(on) is specified down to −1.6 V (typ) at IC = −2 mA, meaning reliable turn-on requires ≥2 V magnitude input. At 1.8 V drive, hFE variation and temperature drift may cause inconsistent saturation; 3.3 V or 5 V logic sources are recommended for guaranteed performance.
PDTA144EU/ZLX 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/ZLX FAQ
1.How can I place an order for PDTA144EU/ZLX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA144EU/ZLX 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/ZLX reliable?
The price and inventory of PDTA144EU/ZLX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA144EU/ZLX is usually 5 days.
3.What payment methods are accepted for PDTA144EU/ZLX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA144EU/ZLX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA144EU/ZLX?
PDTA144EU/ZLX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA144EU/ZLX 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/ZLX?
For technical support, including PDTA144EU/ZLX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA144EU/ZLX requirements.
6.How does Aetrix verify that PDTA144EU/ZLX is sourced from the original manufacturer or authorized distributors?
All PDTA144EU/ZLX 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/ZLX meets industry standards.
7.What is the process for return or replacement of PDTA144EU/ZLX?
All PDTA144EU/ZLX units undergo pre-shipment inspection (PSI). If there is an issue with PDTA144EU/ZLX, 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/ZLX part is unused and in its original packaging.
Return procedure for PDTA144EU/ZLX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA144EU/ZLX Tags
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MUN5211T1G
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DRDNB16W-7
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