DTC143EKA NPN Digital Transistor with 4.7kΩ Bias Resistors SOT-346
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Prices updated: 13 Oct 2026
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About this product
DTC143EKA is an NPN digital transistor in an SOT-346 package with built-in bias resistors, R1 and R2 both 4.7 kΩ. The integrated resistors let it act as an inverter stage without external input resistors, so only the on and off conditions need to be set. It simplifies designs that switch from logic outputs.
Specifications
- Transistor type
- NPN digital / NPN رقمي
- Bias resistor R1
- 4.7 kΩ
- Bias resistor R2
- 4.7 kΩ
- Package
- SOT-346
- Built-in bias resistors
- Yes / نعم
Frequently asked questions
Do I need an external input resistor?
No. R1 and R2 are built in at 4.7 kΩ each, so the transistor can be driven directly from a logic output without an external input resistor.
How does it differ from the DTA123JCA?
The DTC143EKA is NPN while the DTA123JCA is PNP. Both have built-in bias resistors, but their resistor values differ, so check each datasheet before substituting one for the other.
