Pull-down Resistor Calculator
Supply Voltage (VCC, V)
Pin Leakage Current (µA)
Max Logic-Low Voltage (VIL, V)
Chosen Resistor (R, Ω)
Max Resistor (leakage limit): –
Current through R (when HIGH driven): 0.50 mA
Power dissipated in R: 2.50 mW
Common Pull-down Resistor Reference
| Resistor | I @ 3.3V | I @ 5V | Typical Use |
|---|---|---|---|
| 1 kΩ | 3.30 mA | 5.00 mA | Strong, noisy environment |
| 2.2 kΩ | 1.50 mA | 2.27 mA | Medium-strong |
| 4.7 kΩ | 0.70 mA | 1.06 mA | General purpose |
| 10 kΩ | 0.33 mA | 0.50 mA | Standard default |
| 47 kΩ | 0.07 mA | 0.11 mA | Low power |
| 100 kΩ | 0.03 mA | 0.05 mA | Ultra-low power / battery |
Last Updated on May 31, 2026 by Kevin Chen
Founder / Writer at Rantle East Electronic Trading Co., Limited
Hello, I'm Kevin Chen, an electrical and electronic engineer with 23 years of experience. I graduated from the University of Electronic Science and Technology of China in 2000. As part of my role at Rantle, I am responsible for creating informative and reliable content related to electronics.
At Rantle, we strive to provide valuable electronic information to our readers. We cover a wide range of topics, including IC chips, capacitors, resistors, inductors, circuit breakers, diodes, transistors, modules, relays, optical couplers, connectors, PCBs, and more. We encourage you to actively engage with us by sharing your thoughts and questions on these subjects.
Our goal is to assist you by offering accurate and helpful insights into the world of electronics. We eagerly await your participation and look forward to hearing from you.
At Rantle, we strive to provide valuable electronic information to our readers. We cover a wide range of topics, including IC chips, capacitors, resistors, inductors, circuit breakers, diodes, transistors, modules, relays, optical couplers, connectors, PCBs, and more. We encourage you to actively engage with us by sharing your thoughts and questions on these subjects.
Our goal is to assist you by offering accurate and helpful insights into the world of electronics. We eagerly await your participation and look forward to hearing from you.
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