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NXP Semiconductors PDTA144ES,126
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- Part No.:
- PDTA144ES,126
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
PDTA144ES,126.pdf
- Description:
- TRANS PREBIAS PNP 50V TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,129
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Product details
Overview
PDTA144ES from NXP Semiconductors is a PNP resistor-equipped transistor in TO-92 (SOT54) package with integrated 47 kΩ base bias resistors R1 and R2, −50 V VCEO, −100 mA IO, and −150 mV VCEsat at −10 mA/−0.5 mA; used for general-purpose switching in low-voltage interface circuits.
For engineers reviewing the PDTA144ES datasheet, PDTA144ES pinout, PDTA144ES application, or PDTA144ES equivalent, key selection criteria include its built-in bias network simplifying drive circuitry, TO-92 through-hole compatibility, PNP polarity with defined saturation voltage, and thermal resistance of 250 K/W in free air.
Technical Context
This device integrates two precision 47 kΩ resistors (R1 = base-to-VIN, R2 = base-to-emitter) to form a single-transistor digital switch with fixed biasing-eliminating external resistors while maintaining predictable turn-on/off thresholds (Vi(on) = −1.6 V typ., Vi(off) = −1.2 V typ.).
It operates as a saturated PNP switch with DC current gain hFE ≥ 80 at −5 mA collector current and −5 V VCE, and exhibits low leakage: ICEO ≤ −1 μA at −30 V VCE and 25 °C, rising to −50 μA at 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - maximum safe collector-emitter voltage before breakdown in open-base configuration |
| IO (DC) | −100 mA - max continuous output current without derating at Tamb ≤ 25 °C |
| R1 / R2 | 47 kΩ ±24% - matched internal bias resistors enabling resistorless logic-level switching |
| VCEsat | −150 mV max at IC = −10 mA, IB = −0.5 mA - ensures low conduction loss in saturated switching |
| hFE | ≥ 80 at VCE = −5 V, IC = −5 mA - guarantees sufficient current amplification for reliable digital drive |
| Ptot | 500 mW at Tamb ≤ 25 °C - total power dissipation limit in SOT54 package with 250 K/W thermal resistance |
Pinout & Package
Package: SOT54 (TO-92), plastic through-hole, 3-lead, body dimensions 4.8 × 4.2 × 14.5 mm (L × W × H), lead pitch 2.54 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Input node connected internally to R1 (to VIN) and R2 (to emitter); no external base connection required |
| 2 | Collector | High-side switched output; connects to load supply rail when transistor is ON |
| 3 | Emitter | Common reference terminal tied to system ground or logic low; R2 terminates here |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Eliminates two external resistors, reducing BOM count and PCB area in digital interface designs |
| Fixed input threshold | Vi(on) = −1.6 V typ. enables direct TTL/CMOS-compatible drive without level-shifting |
| SOT54 through-hole mounting | Supports legacy prototyping, manual assembly, and high-reliability mechanical retention in industrial controls |
| Low saturation voltage | VCEsat ≤ −150 mV minimizes power loss and self-heating during sustained ON-state operation |
Applications
| Logic-Level Inverter | Microcontroller GPIO Driver |
|---|---|
Use Scenario: Converting active-high microcontroller output to active-low signal for legacy peripherals. IC Role / Device Role / Timing Role: PNP switch configured as inverting buffer with fixed bias, driven directly by 3.3 V or 5 V logic. Use Value: Eliminates need for pull-up resistor and external base resistor-reducing component count by two per channel. | Use Scenario: Driving LED indicators or small relays from MCU I/O pins with limited sink capability. IC Role / Device Role / Timing Role: High-side switch controlling current flow from VCC to load, activated by low GPIO state. Use Value: Ensures clean saturation (VCEsat ≤ −150 mV) even at 10 mA load, preserving GPIO voltage margin. |
| Level Translation Interface | Power Supply Enable Switch |
Use Scenario: Interfacing 3.3 V FPGA outputs to 5 V or 12 V analog subsystems requiring inverted enable signals. IC Role / Device Role / Timing Role: Voltage-tolerant PNP switch accepting up to +10 V input (VI positive limit) and blocking −40 V reverse transients. Use Value: Built-in R1/R2 provides robust noise immunity and eliminates external bias design uncertainty. | Use Scenario: Enabling/disabling auxiliary power rails (e.g., sensor bias, RF module VDD) via MCU control. IC Role / Device Role / Timing Role: Low-leakage (ICEO ≤ −1 μA) high-side switch ensuring rail remains fully off during sleep mode. Use Value: Confirmed −50 V VCEO rating supports safe operation across common industrial supply voltages. |
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 |
|---|---|---|---|
| PDTC144ES | NPN complement with identical R1/R2 values, same SOT54 package, but opposite polarity and drive logic | Requires active-high input instead of active-low; unsuitable where high-side sourcing is mandatory | Select PDTC144ES only when circuit topology allows NPN low-side switching with grounded load |
| NSV144ES | ON Semiconductor's functionally equivalent PNP RET in TO-92; R1/R2 = 47 kΩ, VCEO = −50 V, but hFE min = 60 vs. 80 for PDTA144ES | Lower guaranteed current gain may require higher base drive in marginal designs | Use NSV144ES where second-source assurance is needed and hFE margin is verified in target operating conditions |
Compared with PDTC144ES and NSV144ES, the PDTA144ES offers superior minimum hFE (80 vs. 60) and native high-side switching capability-making it preferred for applications demanding robust saturation with minimal base current and strict OFF-state leakage control.
Availability
PDTA144ES is available at Aetrix Electronics and suitable for industrial control interfaces, legacy equipment repair, and microcontroller peripheral driver circuits requiring stable component supply and long-term obsolescence management.
Supply support for PDTA144ES 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The PDTA144ES belongs to NXP's resistor-equipped transistor (RET) product line, designed to simplify discrete logic interfacing and reduce bill-of-materials complexity in cost-sensitive, space-constrained embedded systems.
FAQ
What is the pin configuration of the PDTA144ES?
The PDTA144ES uses a standard TO-92 (SOT54) pinout: Pin 1 is Base, Pin 2 is Collector, and Pin 3 is Emitter. This arrangement is confirmed in the official NXP datasheet section "Simplified outline, symbol and pinning", and matches mechanical drawings for SC-43A package outlines.
Does the PDTA144ES require external base resistors?
No, the PDTA144ES does not require external base resistors. It integrates R1 = 47 kΩ (base-to-input) and R2 = 47 kΩ (base-to-emitter) internally, enabling direct connection to logic-level signals without additional components-verified in the Quick Reference Data and Characteristics tables of the NXP datasheet.
What is the maximum operating temperature for the PDTA144ES?
The PDTA144ES has a maximum junction temperature (Tj) of 150 °C and an operating ambient temperature range of −65 °C to +150 °C, as specified in the Limiting Values table of the NXP datasheet. Thermal resistance from junction to ambient is 250 K/W in free air for the SOT54 package.
Can the PDTA144ES be used as a replacement for a standard PNP transistor like BC807?
The PDTA144ES is not a drop-in replacement for discrete PNP transistors such as BC807 because it includes integrated bias resistors and requires different drive logic. While both are PNP, the PDTA144ES functions as a digital switch with fixed thresholds, whereas BC807 needs external biasing-confirmed by functional differences in the NXP PDTA144E series documentation.
What is the typical input-on voltage (Vi(on)) for the PDTA144ES?
The typical input-on voltage (Vi(on)) for the PDTA144ES is −1.6 V at IC = −2 mA and VCE = −0.3 V, with a range of −3 V to − V, as specified in the Characteristics table of the NXP datasheet. This defines the voltage threshold at which the device reliably saturates as a switch.
PDTA144ES,126 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Packaging:
- Tape & Box (TB)
- 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:
- -
- Power - Max:
- 500 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-3
PDTA144ES,126 FAQ
1.How can I place an order for PDTA144ES,126 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA144ES,126 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 PDTA144ES,126 reliable?
The price and inventory of PDTA144ES,126 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA144ES,126 is usually 5 days.
3.What payment methods are accepted for PDTA144ES,126?
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PDTA144ES,126 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA144ES,126 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 PDTA144ES,126?
For technical support, including PDTA144ES,126 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA144ES,126 requirements.
6.How does Aetrix verify that PDTA144ES,126 is sourced from the original manufacturer or authorized distributors?
All PDTA144ES,126 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 PDTA144ES,126 meets industry standards.
7.What is the process for return or replacement of PDTA144ES,126?
All PDTA144ES,126 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA144ES,126, 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 PDTA144ES,126 part is unused and in its original packaging.
Return procedure for PDTA144ES,126:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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