Resistor 0.25W 5.1 ohm (10 pcs)

The Resistor 0.25W 5.1 ohm is a quarter-watt through-hole resistor with a resistance of 5.1 Ω, supplied in a pack of 10. This E24 value is used as a current-sense resistor, a MOSFET gate resistor and a low-value series resistor in driver and audio circuits.

Resistor 0.25W 5.1 ohm Specifications

• Resistance: 5.1 Ω (5.1 ohms)
• Power rating: 0.25 W (1/4 W)
• Value series: standard E24 value
• Colour code: green, brown, gold (4-band) or green, brown, black, silver (5-band), followed by the tolerance band
• Maximum current: about 221 mA at the full 0.25 W
• Maximum voltage: about 1.13 V across the resistor at the full 0.25 W
• Type: fixed resistor, axial leads, through-hole
• Pack size: 10 pieces

Resistor 0.25W 5.1 ohm Applications

• Current sensing of small loads: 100 mA gives a 0.51 V drop
• Gate resistors for MOSFETs switched by a gate-driver IC
• Series resistors in small speaker and buzzer circuits
• Emitter ballast resistors for transistors in parallel
• Electronics education and prototyping

What's in the Box

• 10 × 5.1 Ω 0.25 W resistors

Tip: If you are adding USB-C power to a project, note that the CC pull-down resistors are 5.1 kΩ (green, brown, red), not 5.1 Ω. This 5.1 Ω part is meant for low-resistance jobs such as current sensing.

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