NXP Semiconductors PDTD113ES,126
- Part No.:
- PDTD113ES,126
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
PDTD113ES,126.pdf
- Description:
- TRANS PREBIAS NPN 50V TO92-3
- Quantity:
- Payment:

- Shipping:

Inventory:4,755
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Product details
Overview
PDTD113ES,126 from NXP Semiconductors is a through-hole NPN resistor-equipped transistor (RET) designed for digital switching in automotive and industrial control circuits. It delivers 500 mA DC output current, features integrated bias resistors R1 = 1 kΩ and R2 = 1 kΩ with ±10 % ratio tolerance, and operates up to 50 V VCEO, enabling direct interface with microcontroller GPIOs driving relays or LEDs.
For engineers reviewing the PDTD113ES,126 datasheet, PDTD113ES,126 pinout, PDTD113ES,126 application, or PDTD113ES,126 equivalent, this device serves as a cost-optimized, component-count-reducing alternative to discrete BJT + resistor combinations-particularly where board space, assembly cost, and design simplicity are critical in load-switching and IC input conditioning.
Technical Context
The PDTD113ES,126 integrates two precision-matched on-chip resistors (R1 = 1 kΩ, R2 = 1 kΩ) to form a built-in voltage divider that biases the NPN transistor base, eliminating external components. Its SOT54 (TO-92) through-hole package supports manual or wave-solder assembly in legacy and high-reliability industrial PCBs.
It exhibits VI(on) = 1.0–1.8 V at IC = 20 mA and VI(off) = 0.6–1.5 V at IC = 100 μA, enabling robust logic-level compatibility with 3.3 V and 5 V controllers. With hFE ≥ 33 at IC = 50 mA and VCE = 5 V, it ensures reliable saturation under typical digital drive conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Supports switching of 24 V industrial loads without external protection. |
| IO (DC) | 500 mA - Drives medium-power solenoids, relays, or LED arrays directly. |
| R1 | 1 kΩ (0.7–1.3 kΩ) - Sets base current for predictable turn-on with standard logic outputs. |
| R2/R1 | 1.0 ± 0.1 - Ensures stable bias point across temperature and process variation. |
| VCE(sat) | ≤ 0.3 V at IC = 50 mA / IB = 2.5 mA - Minimizes conduction loss and self-heating. |
| Ptot | 500 mW at Tamb ≤ 25 °C - Enables operation in compact enclosures without forced cooling. |
| VEBO | 10 V - Allows safe reverse-biasing of emitter-base junction during fast switching transitions. |
Pinout & Package
SOT54 (JEDEC TO-92, JEITA SC-43A) is a 3-lead through-hole plastic package with standard lead spacing (2.54 mm pitch), optimized for wave soldering and mechanical stability in industrial environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | input (base) | Connected internally to R1; accepts logic-level drive signal (e.g., MCU GPIO). |
| 2 | output (collector) | Switches high-side loads; connects to load return path or supply rail depending on topology. |
| 3 | GND (emitter) | Common reference node; ties to system ground or low-side load connection point. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in R1/R2 bias network | Eliminates two external resistors, reducing BOM count and PCB footprint by ~3 mm² per channel. |
| ±10 % R2/R1 tolerance | Guarantees consistent switching thresholds across production lots and temperature ranges (−40 °C to +100 °C). |
| 500 mA DC output rating | Supports direct drive of 24 V/12 W solenoids or 5 V/2.5 W LED strings without heatsinking. |
| VI(on) ≤ 1.8 V @ 20 mA | Ensures full turn-on with 3.3 V CMOS outputs, avoiding marginal conduction in low-voltage systems. |
| TO-92 mechanical robustness | Withstands >5 kgf axial pull force and meets IPC-J-STD-020 moisture sensitivity level 1 for unlimited floor life. |
Applications
| Industrial Relay Driver | Automotive Door Lock Control |
|---|---|
Use Scenario: Driving 24 V DC coil relays in PLC I/O modules with 3.3 V microcontroller outputs. IC Role / Device Role / Timing Role: Digital switch translating logic-level signals into high-current coil actuation. Use Value: Eliminates need for discrete base resistor and reduces layout complexity while maintaining 500 mA drive capability and thermal margin. |
Use Scenario: Controlling solenoid actuators in vehicle door lock mechanisms using body-control module (BCM) GPIOs. IC Role / Device Role / Timing Role: Load switch interfacing between 5 V BCM logic and 12 V inductive lock solenoids. Use Value: Built-in resistor matching ensures consistent turn-on timing across temperature extremes (−40 °C to +85 °C ambient), improving system reliability. |
| LED Array Power Switch | Microcontroller Input Protection |
Use Scenario: Switching multi-segment indicator LED banks in HVAC control panels powered from 5 V rails. IC Role / Device Role / Timing Role: High-side or low-side current switch managing up to 500 mA total LED current per channel. Use Value: Low VCE(sat) ≤ 0.3 V minimizes power loss and heat generation in sealed enclosures with limited airflow. |
Use Scenario: Conditioning noisy 12 V sensor signals before feeding into 3.3 V microcontroller ADC or GPIO pins. IC Role / Device Role / Timing Role: Level-shifting and current-limiting interface protecting MCU inputs from overvoltage transients. Use Value: Integrated R1/R2 provides defined input impedance and clamping behavior, replacing external Zener + resistor networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC817-40,115 | Discrete NPN BJT requiring external base resistor; hFE = 250–630 (wider spread); no integrated R2. | Higher gain variability requires custom resistor selection per unit; less suitable for high-volume automated assembly. | Choose when fine-tuned gain control or higher hFE is required, and additional board area/resistor cost is acceptable. |
| PDTB113ES,112 | PNP complement in identical SOT54 package; VECO = 50 V, IO = −500 mA, same R1/R2 values. | Used for high-side switching or inverted logic interfaces where sourcing current is needed instead of sinking. | Choose when complementary PNP functionality is required in the same footprint-e.g., H-bridge half-bridge drivers or dual-rail logic translators. |
Compared with BC817-40,115 and PDTB113ES,112, the PDTD113ES,126 offers guaranteed resistor matching and reduced assembly steps for NPN sinking applications, while PDTB113ES,112 enables symmetrical design reuse in bidirectional control paths without changing PCB layout.
Availability
PDTD113ES,126 is available at Aetrix Electronics and suitable for industrial relay drivers, automotive body electronics, LED power switching, and microcontroller I/O conditioning requiring stable component supply and long-term obsolescence management.
Supply support for PDTD113ES,126 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 PDTD113ES,126 belongs to NXP's resistor-equipped transistor (RET) family, engineered to simplify digital interface design in cost-sensitive, high-volume industrial and automotive control systems by integrating precision biasing networks.
FAQ
What is the package type and mounting style of PDTD113ES,126?
The PDTD113ES,126 uses the SOT54 (JEDEC TO-92) through-hole plastic package with three leads spaced at 2.54 mm. It is designed for wave soldering or hand-soldering onto printed circuit boards, offering mechanical robustness and thermal performance suitable for industrial environments. This differs from surface-mount variants like PDTD113ET (SOT23) or PDTD113EK (SOT346).
Does PDTD113ES,126 require external base resistors?
No, the PDTD113ES,126 does not require external base resistors. It integrates R1 = 1 kΩ and R2 = 1 kΩ on-die to provide fixed biasing, enabling direct connection to logic-level sources such as 3.3 V or 5 V microcontroller GPIOs. This eliminates two passive components per channel and simplifies schematic capture and layout for the PDTD113ES,126.
What is the maximum continuous collector current rating for PDTD113ES,126?
The PDTD113ES,126 is rated for 500 mA DC output current (IO) under standard test conditions (Tamb ≤ 25 °C, FR4 PCB). Its 500 mW total power dissipation rating and 250 K/W junction-to-ambient thermal resistance allow sustained operation at this current in typical industrial ambient conditions without forced cooling.
Can PDTD113ES,126 be used in automotive applications?
Yes, the PDTD113ES,126 is explicitly qualified for digital applications in automotive segments per its NXP product profile. It supports operating temperatures from −40 °C to +150 °C junction, meets AEC-Q101 stress-test requirements for discrete semiconductors, and is commonly deployed in door lock actuators, lighting controls, and body electronics where reliability and simplified design are essential for the PDTD113ES,126.
How does the R2/R1 ratio affect switching behavior in PDTD113ES,126?
The R2/R1 ratio of 1.0 ± 0.1 in the PDTD113ES,126 defines the internal feedback path that stabilizes the base-emitter voltage and improves immunity to temperature-induced gain drift. This tight tolerance ensures consistent VI(on) and VI(off) thresholds across units and operating conditions, making the PDTD113ES,126 more predictable than discrete BJT + resistor combinations in mission-critical switching roles.
PDTD113ES,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:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 1 kOhms
- Resistor - Emitter Base (R2):
- 1 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 33 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- -
- Power - Max:
- 500 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-3
PDTD113ES,126 FAQ
1.How can I place an order for PDTD113ES,126 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTD113ES,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 PDTD113ES,126 reliable?
The price and inventory of PDTD113ES,126 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTD113ES,126 is usually 5 days.
3.What payment methods are accepted for PDTD113ES,126?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTD113ES,126 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTD113ES,126?
PDTD113ES,126 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTD113ES,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 PDTD113ES,126?
For technical support, including PDTD113ES,126 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTD113ES,126 requirements.
6.How does Aetrix verify that PDTD113ES,126 is sourced from the original manufacturer or authorized distributors?
All PDTD113ES,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 PDTD113ES,126 meets industry standards.
7.What is the process for return or replacement of PDTD113ES,126?
All PDTD113ES,126 units undergo pre-shipment inspection (PSI). If there is an issue with PDTD113ES,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 PDTD113ES,126 part is unused and in its original packaging.
Return procedure for PDTD113ES,126:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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