PDTC124EU Nexperia Integrated Circuit (SOT23 (3-Pin)) In Stock
Nexperia PDTC124EU is an NPN digital transistor with built-in 22 kΩ bias resistors, rated at 100 mA collector current and 50 V collector-emitter voltage. The 3-pin SOT-23 (UMT) package integrates bias resistors for direct microcontroller interfacing without external components. Available in stock worldwide for switching and logic interface applications.
- Manufacturer
- Nexperia
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- PDTC124EU Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Built-in 22 kΩ bias resistors with 1:1 ratio enabling direct microcontroller GPIO interfacing without external resistors
- 100 mA collector current at up to 50 V collector-emitter voltage for versatile low-power switching applications
- Ultra-compact 3-pin SOT-23 (UMT) package with DC current gain of 60 hFE minimum for space-efficient digital circuit design
Applications
The PDTC124EU is ideal for logic-level switching of LEDs, relays, and small loads directly from microcontroller or FPGA GPIO pins rated at 3.3 V or 5 V. Its integrated 22 kΩ bias resistors eliminate the need for external base resistors, reducing component count and PCB area in consumer electronics and IoT device designs. This digital transistor is widely used in load switch circuits, signal inversion stages, and general-purpose NPN driver applications requiring compact through-hole-free assembly.
Specifications
| Date Of Intro | 1995-11-01 |
| YTEOL | 7 |
| Additional Feature | BUILT IN BIAS RESISTANCE RATIO IS 1 |
| Collector Current-Max (IC) | 0.1A |
| Collector-Emitter Voltage-Max | 50V |
| Configuration | SINGLE WITH BUILT-IN RESISTOR |
| DC Current Gain-Min (hFE) | 60 |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity/Channel Type | NPN |
| Reference Standard | IEC-60134 |
| Surface Mount | YES |
| Terminal Finish | Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| Transition Frequency-Nom (fT) | 230MHz |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What built-in resistor value does PDTC124EU include and how does it simplify circuit design?
The PDTC124EU includes a 22 kΩ built-in bias resistor with a ratio of 1:1, eliminating the need for external base and emitter resistors in NPN switching circuits. This integration reduces PCB component count and simplifies design when driving loads up to 100 mA from 3.3 V or 5 V microcontroller output pins directly.
What is the maximum collector-emitter voltage and current for PDTC124EU in LED and relay switching?
The PDTC124EU supports a maximum collector-emitter voltage of 50 V and a maximum collector current of 100 mA, making it suitable for switching LEDs, small relays, and signal loads. With a minimum DC current gain of 60 hFE, it efficiently amplifies low base drive signals to control output loads in digital switching stages.
How compact is the PDTC124EU footprint for PCB layout in portable consumer devices?
The PDTC124EU is housed in a 3-pin SOT-23 (UMT) surface-mount package, one of the smallest available transistor form factors. This compact footprint is ideal for portable consumer electronics, wearables, and IoT devices where board space is limited but a reliable 100 mA NPN switching transistor with integrated 22 kΩ bias resistors is required.
When is PDTC124EU a better choice than a discrete NPN BJT in a GPIO-controlled switch circuit?
The PDTC124EU is preferred over discrete NPN BJTs when the GPIO source impedance must be matched by a 22 kΩ base resistor already integrated into the 3-pin SOT-23 package. This avoids placing 2 separate resistors on the PCB, saving space and reducing bill-of-materials cost in high-volume consumer electronics designs using 50 V, 100 mA switching loads.
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