PDTC114ET,215

PDTC114ET is a digital transistor with a built‑in base bias resistor. It combines an NPN transistor with an internal base resistor so a microcontroller or logic output can drive the device directly, without an external base resistor. It switches a load at the collector (emitter common), enabling simple interface to relays, LEDs, and small inductive loads.
The “ET” suffix typically denotes a specific package (often SMD) and variant of the PDTC114 family; “215” is not a separate electrical spec but likely a lot/date code or packaging code. Different PDTC114E variants exist with different base-resistor values and ratings, so exact VCE, IC, and hFE vary by part in the family.
Key takeaways:
- Benefits: fewer external parts, easy logic-level drive, reasonable noise margins.
- Use when you need to drive modest loads directly from a microcontroller.
- Check the datasheet for the exact variant to confirm VCE, IC, and base-resistor details for your application.
If you meant a specific PDTC114ET-215 part, please provide the manufacturer or datasheet link for precise specs.

PDTC114ET,215 features (concise):
- NPN digital transistor with built-in base bias resistor (no external base resistor required)
- Logic-level input compatible; drives with only a few mA of base current
- Saturates to drive a moderate load; suitable for sinking current from microcontroller outputs
- Collector-emitter voltage rating around 50 V
- Collector current rating on the order of 100 mA (typical; check exact variant)
- Low saturation voltage for efficient switching; fast switching characteristics
- Pb-free / RoHS compliant; available in tape-and-reel option (code 215) and common SMD/SMT packages
- Simplifies interfacing, provides protection against accidental misdrive by MCU outputs
Note: exact values (VCEO, IC, package type) vary by sub-variant; consult the specific datasheet for your exact device.

SOT-23-3 (3-pin surface-mount) package.

- Pin count: 3 pins (SOT-23-3)
- Function: NPN digital transistor with an integrated base resistor (no external base resistor needed). Pinout (typical): Pin 1 = Base, Pin 2 = Collector, Pin 3 = Emitter. Used to directly switch loads from logic signals (e.g., LEDs, relays). The “215” is a lot/date code and does not change the function.

Manufacturer: Panasonic Corporation (Panasonic Semiconductor).
What kind of company: A Japanese multinational electronics company that designs and manufactures semiconductors, components, and consumer electronics.

PDTC114ET and PDTC215ET are NPN digital transistors with built-in base resistors. Applications include:
- Driving LEDs and LED indicators
- Switching relay coils and small DC motors
- MCU interfaces to inductive loads
- Low-side switches and simple level shifters in compact, low-pin designs
- Automotive/industrial control where robust drive and reduced BOM are advantageous

PDTC114ET is a digital transistor with an integrated base resistor (NPN). Equivalents are other digital transistors with built‑in base resistors from major vendors (e.g., Toshiba DTC series, ON Semiconductor DTC series, Renesas/Rohm PDTC families) that match its Vce, Ic and base resistor values. For exact substitutes, please provide the datasheet or desired specs (Vce, Ic, Rb, package). I can then give precise cross references.