Resistor 0.25W 3 ohm (10 pcs)

The Resistor 0.25W 3 ohm is a through-hole fixed resistor with a resistance of 3 Ω and a power rating of 0.25 W, sold in a pack of 10. The round value makes calculations simple: every 100 mA flowing through it gives a 0.3 V drop, so it is a good choice for current sensing, low-value series resistors and teaching Ohm's law.

Resistor 0.25W 3 ohm Specifications

• Resistance: 3 Ω (3.0 ohms)
• Power rating: 0.25 W (1/4 W)
• Value series: standard E24 value
• Colour code: orange, black, gold (4-band) or orange, black, black, silver (5-band), followed by the tolerance band
• Maximum current: about 289 mA at the full 0.25 W
• Maximum voltage: about 0.87 V across the resistor at the full 0.25 W
• Type: fixed resistor, axial leads, through-hole
• Pack size: 10 pieces

Resistor 0.25W 3 ohm Applications

• Current sensing of loads up to about 200 mA
• Gate resistors for MOSFETs with a gate-driver IC
• Making other low values: two in parallel give 1.5 Ω, three in parallel give 1 Ω
• Ohm's law experiments in electronics classes
• Prototyping on breadboards and perfboards

What's in the Box

• 10 × 3 Ω 0.25 W resistors

Tip: Three 3 Ω resistors in parallel make an exact 1 Ω resistor rated for 0.75 W, a simple way to get a sturdier low-value part for current sensing.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.