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Under $20 3.3V

Shop the best prices on 24 great value under $20 3.3v products. Shopping for under $20 3.3v is easy with Fruugo, with SALE discounts, offers and savings on many brands. Buy power converters, specialty electrical switches & relays, voltage transformers & regulators and more online safely with Fruugo, with secure payment and fast shipping to Singapore.

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1 - 24 of 24
DC DC Downstream Voltage Reduction Module Efficiency 96% Model High-Power Antihypertensive Board Low Ripple 5V
$14.95
1 Channel Relay Module with High/Low Level Trigger, Supports 3.3V, 5V, 12V, 24V for Arduino and Raspberry Pi Projects
$18.95 Save $11.00 RRP: $29.95
3.3V 5V 12V 24V 1 Channel Relay Module High and low Level Trigger Relay Board SHYTMV
$12.95 Save $13.00 RRP: $25.95
2A DC-DC Buck Step Down Module 4-36V to 3.3V DC DC Step-Down Voltage Regulator Power Supply Module
$18.95 Save $8.00 RRP: $26.95
2A DC-DC Buck Step Down Module 4-36V to 5V DC DC Step-Down Voltage Regulator Power Supply Module
$16.95 Save $10.00 RRP: $26.95
2A DC-DC Buck Step Down Module 4-36V to 3.3V DC DC Step-Down Voltage Regulator Power Supply Module
$17.95 Save $9.00 RRP: $26.95
2A DC-DC Buck Step Down Module 4-36V to 3.3V DC DC Step-Down Voltage Regulator Power Supply Module
$19.95 Save $12.00 RRP: $31.95
2A DC-DC Buck Step Down Module 4-36V to 3.3V DC DC Step-Down Voltage Regulator Power Supply Module
$18.95
2A DC-DC Buck Step Down Module 4-36V to 3.3V DC DC Step-Down Voltage Regulator Power Supply Module
$16.95 Save $8.00 RRP: $24.95
XL63020 TPS63020 Lithium Battery USB Automatic Boost Buck Step Up Down Module Microcontroller Power Low Ripple 4.2V
$9.95
2A DC-DC Buck Step Down Module 4-36V to 3.3V DC DC Step-Down Voltage Regulator Power Supply Module
$16.95 Save $10.00 RRP: $26.95
2A DC-DC Buck Step Down Module 4-36V to 3.3V DC DC Step-Down Voltage Regulator Power Supply Module
$18.95
3.3V 5V 12V 24V 1 Channel Relay Module High and low Level Trigger Relay Board SHYTMV [jkw]
$10.95 Save $5.00 RRP: $15.95
2A DC-DC Buck Step Down Module 4-36V to 3.3V DC DC Step-Down Voltage Regulator Power Supply Module
$17.95 Save $8.00 RRP: $25.95
XL63020 TPS63020 Lithium Battery USB Automatic Boost Buck Step Up Down Module Microcontroller Power Low Ripple 4.2V
$7.95 Save $8.00 RRP: $15.95
DC DC Downstream Voltage Reduction Module Efficiency 96% Model High-Power Antihypertensive Board Low Ripple 5V
$14.95
DC-DC Power Module 24V Wide Voltage Power Supply High Current Bare Board Step-Down Module 9V
$8.95
XL63020 TPS63020 Lithium Battery USB Automatic Boost Buck Step Up Down Module Microcontroller Power Low Ripple 3.3V
$6.95 Save $3.00 RRP: $9.95
3.3V 5V 12V 24V 1 Channel Relay Module High and low Level Trigger Relay Board SHYTMV [jkw]
$10.95 Save $5.00 RRP: $15.95
2A DC-DC Buck Step Down Module 4-36V to 5V DC DC Step-Down Voltage Regulator Power Supply Module
$16.95 Save $17.00 RRP: $33.95
2A DC-DC Buck Step Down Module 4-36V to 3.3V DC DC Step-Down Voltage Regulator Power Supply Module
$17.95 Save $11.00 RRP: $28.95
2A DC-DC Buck Step Down Module 4-36V to 3.3V DC DC Step-Down Voltage Regulator Power Supply Module unbrand
$17.95 Save $13.00 RRP: $30.95
XL63020 TPS63020 Lithium Battery USB Automatic Boost Buck Step Up Down Module Microcontroller Power Low Ripple 4.2V
$6.95 Save $7.00 RRP: $13.95
TPS63020 Automatic Buck-Boost Step Up Down Power Supply Module Lithium Battery Low Ripple Voltage Converter 2.5V
$10.95