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Nexperia USA Inc. PDTA124XT/APGR
- Part No.:
- PDTA124XT/APGR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTA124XT/APGR.pdf
- Description:
- TRANS PREBIAS PNP 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,964
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Product details
Overview
PDTA124XT/APGR from NXP Semiconductors is a PNP resistor-equipped transistor (RET) in SOT23 package, integrating R1 = 22 kΩ and R2 = 47 kΩ bias resistors. It delivers −100 mA DC output current with VCEO = −50 V and VCE(sat) ≤ −150 mV at IC = −10 mA/IB = −0.5 mA, used for digital switching and IC input control in space-constrained PCBs.
For engineers reviewing the PDTA124XT datasheet, PDTA124XT pinout, PDTA124XT application, or PDTA124XT equivalent, key selection criteria include built-in bias resistor ratio (R2/R1 = 2.1 typ), off-state input voltage (VI(off) = −0.8 to −0.5 V), thermal resistance (Rth(j-a) = 500 K/W), and compatibility with reflow soldering on FR4 PCBs.
Technical Context
This PNP RET integrates two precision silicon-based resistors (R1 = 22 kΩ ±30%, R2 = 47 kΩ) directly into the die substrate, eliminating external base bias components. Its internal resistor network enables direct logic-level drive from 3.3 V or 5 V microcontrollers without external pull-up/down networks.
The device operates as a saturated switch with guaranteed hFE ≥ 80 at IC = −5 mA/VCE = −5 V and supports ambient temperatures from −65 °C to +150 °C. Junction temperature is rated to 150 °C, and total power dissipation is 250 mW at Tamb ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum safe collector-emitter voltage before breakdown; enables use in 24 V industrial logic interfaces. |
| IO | −100 mA - Continuous DC output current capability; sufficient to drive LEDs, small relays, or gate inputs of downstream logic. |
| R1 | 22 kΩ (15.4–28.6 kΩ) - Input bias resistor value; sets base current for predictable turn-on threshold with standard CMOS outputs. |
| R2/R1 | 2.1 (1.7–2.6) - Fixed internal resistor ratio; ensures stable current gain and consistent saturation behavior across temperature and process variation. |
| VCE(sat) | ≤ −150 mV at IC = −10 mA/IB = −0.5 mA - Low saturation voltage minimizes power loss and heat generation in high-duty-cycle switching. |
| VI(off) | −0.8 to −0.5 V - Guaranteed off-state input voltage range; ensures reliable cutoff when driven by open-drain or low-voltage logic. |
| hFE | ≥ 80 at VCE = −5 V/IC = −5 mA - Minimum DC current gain; provides margin for worst-case beta degradation over lifetime and temperature. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; body dimensions 2.9 × 1.3 × 1.0 mm; standard footprint compatible with automated pick-and-place and reflow soldering.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level control signal; requires no external base resistor. |
| 2 | GND (emitter) | Common emitter reference node; tied to system ground; serves as return path for both input and output currents. |
| 3 | Output (collector) | Switched high-side load connection point; sinks current from VCC-referenced loads (e.g., LED anode, relay coil). |
Key Features
| Feature | Design Value |
|---|---|
| Built-in bias resistors | Eliminates two external 0402/0603 resistors, reducing BOM count and PCB area by ~2.5 mm² per channel. |
| 100 mA output current | Supports direct driving of medium-current loads (e.g., optocoupler LEDs, small solenoids) without external amplification. |
| −50 V VCEO | Enables robust operation in 24 V industrial control systems where transients exceed 30 V. |
| Reflow-compatible SOT23 | Validated for lead-free reflow per J-STD-020; eliminates hand-soldering or wave-soldering constraints in high-volume assembly. |
| −65 °C to +150 °C operating range | Qualified for under-hood automotive modules and industrial motor drives where ambient extremes occur. |
Applications
| Industrial PLC Input Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Isolating and conditioning 24 V sensor signals (e.g., limit switches, proximity sensors) before feeding into MCU GPIOs. IC Role / Device Role / Timing Role: PNP-level shifter and current sink that converts high-voltage active-low inputs to logic-compatible low-voltage signals. Use Value: Reduces component count by replacing discrete transistor + two bias resistors; improves long-term reliability via monolithic integration. |
Use Scenario: Driving indicator LEDs and small solenoid valves (e.g., door lock actuators) from 3.3 V CAN/LIN microcontroller outputs. IC Role / Device Role / Timing Role: Digital switch providing controlled current sinking with fast turn-off (toff < 100 ns typical) and low leakage (<1 µA ICEO). Use Value: Enables direct interface without level-shifting circuitry; maintains EMC robustness due to fixed internal resistor layout. |
| Consumer Appliance Control Boards | IoT Sensor Node Power Management |
Use Scenario: Enabling/disabling auxiliary power rails (e.g., display backlight, buzzer driver) in white goods using low-power MCU outputs. IC Role / Device Role / Timing Role: Load switch configured in high-side configuration with emitter grounded, simplifying PCB routing and thermal management. Use Value: Achieves <150 mV saturation drop at 10 mA, minimizing self-heating and enabling use in thermally constrained enclosures. |
Use Scenario: Controlling always-on peripherals (e.g., RTC backup supply, BLE radio enable) in battery-powered edge nodes with strict quiescent current budgets. IC Role / Device Role / Timing Role: Ultra-low leakage switch (ICEO ≤ −1 µA at −30 V) ensuring sub-µA standby current when disabled. Use Value: Extends battery life by eliminating parasitic discharge paths common with discrete bias networks. |
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 |
|---|---|---|---|
| PDTC124XT | NPN complement; same R1/R2 values, SOT23 package, but opposite polarity and logic drive requirement. | Requires active-high drive instead of active-low; unsuitable for high-side switching with grounded emitter. | Select only if circuit topology mandates NPN configuration and load is connected to VCC rather than ground. |
| BC857B,115 | Discrete PNP transistor (no integrated resistors); hFE = 200–450; requires external R1/R2 for biasing. | Higher gain but adds two passive components and layout complexity; less repeatable turn-on threshold. | Prefer when precise hFE control or higher current gain (>100) is required, and board space allows extra passives. |
Compared with PDTC124XT, PDTA124XT offers native high-side sinking capability and active-low logic compatibility; compared with BC857B, it reduces design iteration time and improves production yield by removing resistor placement variability.
Availability
PDTA124XT/APGR is available at Aetrix Electronics and suitable for industrial PLC input modules, automotive body control units, consumer appliance control boards, and IoT sensor node power management requiring stable component supply and long-lifecycle support.
Supply support for PDTA124XT/APGR 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 markets.
The PDTA124X series belongs to NXP's Resistor-Equipped Transistor (RET) product line, designed specifically to simplify digital interface design by integrating precision biasing networks into compact surface-mount packages.
FAQ
What is the maximum allowable junction temperature for PDTA124XT/APGR?
The absolute maximum junction temperature is 150 °C, as specified in Table 6 of the NXP datasheet. Operation above this limit risks permanent parametric shift or failure. Derating is required above Tamb = 25 °C per the Rth(j-a) = 500 K/W thermal resistance value.
Can PDTA124XT/APGR be used in place of a standard PNP transistor like BC857 without modifying the PCB layout?
No - PDTA124XT has a different pinout (Base-Emi-Col) versus BC857 (Emitter-Base-Collector in SOT23), and integrates internal resistors. Direct replacement would cause incorrect biasing or short circuits. A layout revision is required to accommodate its dedicated RET functionality and pin assignment.
Does PDTA124XT/APGR support lead-free reflow soldering processes?
Yes - NXP qualifies the SOT23 package for lead-free reflow per J-STD-020, with peak temperature up to 260 °C. The device is rated for single reflow only; repeated thermal cycling beyond specification may degrade internal resistor stability or wirebond integrity.
What is the typical off-state leakage current (ICEO) for PDTA124XT/APGR at room temperature?
The typical collector-emitter cut-off current is −1 µA at VCE = −30 V and IB = 0 A, as stated in Table 8. At elevated junction temperature (150 °C), ICEO increases to −50 µA - a critical parameter for battery-powered applications requiring ultra-low standby current.
PDTA124XT/APGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 22 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:
- 150 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTA124XT/APGR FAQ
1.How can I place an order for PDTA124XT/APGR through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA124XT/APGR 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 PDTA124XT/APGR reliable?
The price and inventory of PDTA124XT/APGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA124XT/APGR is usually 5 days.
3.What payment methods are accepted for PDTA124XT/APGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA124XT/APGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA124XT/APGR?
PDTA124XT/APGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA124XT/APGR 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 PDTA124XT/APGR?
For technical support, including PDTA124XT/APGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA124XT/APGR requirements.
6.How does Aetrix verify that PDTA124XT/APGR is sourced from the original manufacturer or authorized distributors?
All PDTA124XT/APGR 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 PDTA124XT/APGR meets industry standards.
7.What is the process for return or replacement of PDTA124XT/APGR?
All PDTA124XT/APGR units undergo pre-shipment inspection (PSI). If there is an issue with PDTA124XT/APGR, 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 PDTA124XT/APGR part is unused and in its original packaging.
Return procedure for PDTA124XT/APGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA124XT/APGR Tags
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