Nexperia USA Inc. PDTD113ET,215
- Part No.:
- PDTD113ET,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTD113ET,215.pdf
- Description:
- TRANS PREBIAS NPN 50V TO236AB
- Quantity:
- Payment:

- Shipping:

Inventory:1,835
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Product details
Overview
PDTD113ET from NXP Semiconductors is a 500 mA, 50 V NPN resistor-equipped transistor (RET) in SOT23 package, featuring integrated bias resistors R1 = 1 kΩ and R2 = 1 kΩ with ±10 % ratio tolerance. It serves as a digital switch for IC input control and load switching in automotive and industrial systems, eliminating external base resistors.
For engineers reviewing the PDTD113ET datasheet, PDTD113ET pinout, PDTD113ET application, or PDTD113ET equivalent, key selection criteria include its 500 mA DC output current, 50 V VCEO, SOT23 footprint compatibility, and verified performance at −40 °C to +100 °C ambient.
Technical Context
This RET integrates two precision resistors (R1 = 1 kΩ, R2/R1 = 1.0 ±0.1) directly into an NPN silicon transistor die, enabling single-pin digital input drive without external biasing. Its design targets logic-level interfacing where base current must be tightly controlled to ensure reliable saturation and cutoff.
The device operates with VI(on) = 1.0–1.8 V at IC = 20 mA and VI(off) = 0.6–1.5 V at IC = 100 μA, supporting TTL- and CMOS-compatible switching. Thermal resistance Rth(j-a) is 500 K/W on FR4 PCB, limiting continuous power dissipation to 250 mW at Tamb ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports 24 V industrial bus switching with margin. |
| IO | 500 mA - Continuous DC output current capability; sufficient for driving relays, LEDs, or small solenoids. |
| R1 | 1 kΩ ±30 % - Input bias resistor value; sets base current for predictable turn-on behavior with standard logic outputs. |
| R2/R1 | 1.0 ±0.1 - Precision resistor ratio ensuring stable current gain and consistent saturation voltage across temperature. |
| VCE(sat) | 0.3 V max at IC = 50 mA, IB = 2.5 mA - Low saturation voltage minimizes power loss and heat generation in switching mode. |
| hFE | 33 min at VCE = 5 V, IC = 50 mA - Guaranteed DC current gain enables reliable digital on/off operation without gain-dependent timing drift. |
| Cc | 7 pF typical at VCB = 10 V, f = 100 MHz - Low collector capacitance supports clean edge transitions in <10 MHz digital switching applications. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; compact 2.8 mm × 1.4 mm footprint, 0.95 mm height, and gull-wing leads for reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level voltage to activate transistor; no external pull-up/down required. |
| 2 | GND (emitter) | Common reference node for input and output circuits; ties emitter directly to system ground plane. |
| 3 | Output (collector) | Switched high-side output node; sinks up to 500 mA to ground when active; connects to load return path. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in bias resistors R1 and R2 | Eliminates 2 external components per switch channel, reducing BOM count and PCB area in multi-channel digital I/O designs. |
| ±10 % R2/R1 ratio tolerance | Ensures consistent saturation behavior across production lots and temperature, critical for deterministic logic-level interfacing. |
| 500 mA DC output current | Supports direct drive of medium-power loads (e.g., 12 V/200 mA relay coils) without external driver stages. |
| VI(off) = 0.6–1.5 V | Guarantees robust noise immunity against false triggering in electrically noisy automotive and industrial environments. |
| SOT23 package | Enables high-density placement on space-constrained boards; compatible with standard 0.65 mm pitch pick-and-place equipment. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Output |
|---|---|
|
Use Scenario: Switching 12 V incandescent lamps and small solenoids in door lock actuators and interior lighting. IC Role / Device Role / Timing Role: NPN RET acting as low-side load switch controlled by microcontroller GPIO pins. Use Value: Built-in R1/R2 eliminates discrete resistor placement, reducing assembly cost and improving reliability over temperature cycling. |
Use Scenario: Driving 24 V DC indicator LEDs and optocoupler inputs in modular I/O expansion cards. IC Role / Device Role / Timing Role: Digital interface buffer providing level translation and current amplification between FPGA I/O and field-side loads. Use Value: 500 mA rating allows parallel connection of multiple indicators without derating; VCE(sat) ≤ 0.3 V ensures minimal voltage drop at full load. |
| Consumer Appliance Control Board | Medical Diagnostic Equipment Interface |
|
Use Scenario: Controlling fan speed via PWM-driven MOSFET gate in HVAC subsystems of smart refrigerators. IC Role / Device Role / Timing Role: Logic-level translator and current booster between MCU PWM output and power MOSFET gate. Use Value: VI(on)/VI(off) specs guarantee clean PWM edge fidelity up to 10 kHz; thermal resistance supports sustained 250 mW dissipation. |
Use Scenario: Isolating and conditioning digital status signals from sensor modules in portable ultrasound units. IC Role / Device Role / Timing Role: Signal conditioning switch enabling safe, low-power communication between isolated sensor domains and host processor. Use Value: Low Cc (7 pF) preserves signal integrity in fast status updates; ±10 % R2/R1 ensures repeatable response across calibration cycles. |
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 |
|---|---|---|---|
| BC817-40,215 | Discrete NPN BJT without built-in resistors; requires external RB and RBE; hFE = 250–630 vs. fixed gain behavior of RET. | Higher component count and layout sensitivity; suitable only where adjustable bias or higher gain is needed. | Select only if variable base current tuning or >500 mA peak current is required; otherwise PDTD113ET reduces design complexity. |
| PDTB113ET,215 | PNP complement with identical R1/R2 values and SOT23 package; VECO = 50 V, IO = −500 mA. | Used for high-side switching or inverted logic interfaces; not interchangeable without circuit redesign. | Choose for complementary high-side drive in push-pull configurations; not a drop-in replacement for NPN topology. |
Compared with BC817-40,215, PDTD113ET saves two passives and guarantees bias stability; versus PDTB113ET, it provides native low-side switching without polarity inversion, simplifying firmware logic and PCB routing.
Availability
PDTD113ET is available at Aetrix Electronics and suitable for automotive body control, industrial PLC output modules, and consumer appliance motor control requiring stable component supply and long-term manufacturability.
Supply support for PDTD113ET 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.
PDTD113ET belongs to NXP's Resistor-Equipped Transistor (RET) product line, engineered to simplify digital interface design in harsh-environment applications by integrating precision bias networks into standard transistor packages.
FAQ
What is the maximum operating temperature for PDTD113ET?
The junction temperature limit is 150 °C, and the ambient operating range is −65 °C to +150 °C. At Tamb = 100 °C, derating applies: maximum continuous IO drops to ~350 mA due to thermal resistance of 500 K/W on FR4 PCB. Full 500 mA rating is valid only at Tamb ≤ 25 °C with adequate copper pour.
Can PDTD113ET replace BC817 in existing designs?
Yes, but only in digital switching roles where base bias is fixed and gain variability is undesirable. PDTD113ET removes two external resistors and guarantees VI(on)/VI(off) thresholds, whereas BC817 requires careful RB selection. Layout changes may be needed due to SOT23 vs. SOT23-3 pinout differences (pin 2 = emitter, not collector).
Is PDTD113ET suitable for PWM switching above 10 kHz?
Yes-its 7 pF collector capacitance and 0.3 V VCE(sat) support clean transitions up to 10 MHz in small-signal loads. For 500 mA loads, switching losses become significant above 50 kHz due to finite rise/fall times (~100 ns typical); use with gate drivers for higher-frequency power switching.
What does the marking "*7R" indicate on PDTD113ET devices?
"*7R" is the top-side laser marking code per Table 5. The asterisk denotes manufacturing location: 't' = Malaysia, 'W' = China, '-' or 'p' = Hong Kong. The '7R' identifies the PDTD113E series within NXP's SOT23 RET family and confirms R1 = R2 = 1 kΩ configuration.
PDTD113ET,215 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:
- Active
- 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:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTD113ET,215 FAQ
1.How can I place an order for PDTD113ET,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTD113ET,215 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 PDTD113ET,215 reliable?
The price and inventory of PDTD113ET,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTD113ET,215 is usually 5 days.
3.What payment methods are accepted for PDTD113ET,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTD113ET,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTD113ET,215?
PDTD113ET,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTD113ET,215 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 PDTD113ET,215?
For technical support, including PDTD113ET,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTD113ET,215 requirements.
6.How does Aetrix verify that PDTD113ET,215 is sourced from the original manufacturer or authorized distributors?
All PDTD113ET,215 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 PDTD113ET,215 meets industry standards.
7.What is the process for return or replacement of PDTD113ET,215?
All PDTD113ET,215 units undergo pre-shipment inspection (PSI). If there is an issue with PDTD113ET,215, 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 PDTD113ET,215 part is unused and in its original packaging.
Return procedure for PDTD113ET,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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