PDTC115EU Nexperia Integrated Circuit (SOT23 (3-Pin)) In Stock
The PDTC115EU is a single NPN digital transistor from Nexperia with built-in 100 kΩ bias resistors in a 3-pin UMT package, rated at 50 V collector-emitter voltage and 100 mA collector current. Key specs: 80 minimum DC current gain (hFE), resistor ratio of 1, and internal bias simplifying circuit design. Available globally from distributors with competitive pricing and worldwide shipping.
- Manufacturer
- Nexperia
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- PDTC115EU Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Built-in 100 kΩ base bias resistors with a ratio of 1 eliminate external resistor components, reducing BOM count and PCB area in digital switching circuits
- 50 V VCE and 100 mA collector current rating support driving LEDs, relays, and low-power loads directly from 3.3 V and 5 V logic outputs
- Ultra-compact 3-pin UMT (SOT323) package measuring 2 mm × 2 mm enables high-density placement on space-constrained PCBs in wearable and IoT devices
Applications
The PDTC115EU is used as a digital switching transistor in LED driver circuits, relay coil drivers, and logic-level signal inverters in consumer electronics, IoT devices, and embedded systems. Its integrated 100 kΩ bias resistors allow direct connection from 3.3 V or 5 V GPIO pins without an external base resistor, simplifying schematic design and saving PCB space. The UMT package's 2 mm footprint suits high-density layouts in smartphones, wearables, and compact industrial controllers.
Specifications
| Date Of Intro | 2017-02-01 |
| 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) | 80 |
| 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 |
| Surface Mount | YES |
| Terminal Finish | TIN |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| 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
How do the built-in 100 kΩ resistors in the PDTC115EU simplify LED driver circuit design?
The PDTC115EU integrates both a 100 kΩ base input resistor and a 100 kΩ base-emitter resistor (ratio 1:1) internally, so a 3.3 V GPIO output can directly drive the transistor base without any external resistors. At 3.3 V input, the base current through the 100 kΩ input resistor is approximately 33 µA, sufficient to saturate the transistor and drive a 20 mA LED load from the collector without additional components.
What is the maximum collector current and VCE for the PDTC115EU and what loads can it switch?
The PDTC115EU is rated for 100 mA maximum collector current and 50 V maximum collector-emitter voltage. This allows it to switch loads such as single LEDs at 20 mA, small relay coils up to 50 mA, and low-power solenoids or buzzers at 5 V to 24 V supply, with the 50 V VCE providing adequate margin for inductive flyback transients when combined with a flyback diode across the load.
How does the PDTC115EU compare to a discrete NPN transistor plus two external resistors in terms of PCB area?
A discrete solution using a standard SOT-23 NPN transistor plus two 0402 resistors occupies approximately 10 mm² to 12 mm² of PCB area. The PDTC115EU integrates all three components in a single 2 mm × 2 mm UMT (SOT323) package occupying roughly 4 mm², saving over 60% board space while eliminating 2 component placements and reducing solder joint count from 7 to 3.
In which package does the PDTC115EU come and what is its operating temperature range?
The PDTC115EU is housed in a 3-pin UMT package (also known as SOT323), with a body size of approximately 2.0 mm × 2.1 mm and a pitch of 1.3 mm between the two bottom pins. It operates across a junction temperature range of -55°C to +150°C, making it suitable for automotive-adjacent and industrial applications exposed to wide ambient temperature swings, though AEC-Q101 qualification should be confirmed for full automotive-grade use.
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