LED Series Current Limiting Resistor Calculator

Calculate the current-limiting resistor value, select the closest E24 resistor, and check power ratings for single or series LEDs.

Results

Theoretical Resistance R— Ω
Rec. E24 Standard Size— Ω
Actual Running Current— mA
Resistor Power PR— W
Rec. Resistor Package Rating—
LED Array Power— W

Formulas

R = (Vcc - N × Vf) / If

PR = If2 × R

博众新材产品
dgbzxny | Bozhong New Materials (Greater Bay Area)

Get Free Samples & Technical Support

Dongguan/Shenzhen Manufacturing Base: SMT copper bars, PCB terminals, and custom hardware.

微信二维码
WeChat Consultation