Resistor 0.25W 13 ohm (10 pcs)

The Resistor 0.25W 13 ohm is a through-hole fixed resistor with a resistance of 13 Ω and a power rating of 0.25 W, sold in a pack of 10. It is an E24 value, useful when you need a specific low resistance between 12 Ω and 15 Ω, for example to set an exact current in an LM317 current source or to trim a current-sense circuit.

Resistor 0.25W 13 ohm Specifications

• Resistance: 13 Ω (13 ohms)
• Power rating: 0.25 W (1/4 W)
• Value series: standard E24 value
• Colour code: brown, orange, black (4-band) or brown, orange, black, gold (5-band), followed by the tolerance band
• Maximum current: about 139 mA at the full 0.25 W
• Type: fixed resistor, axial leads, through-hole
• Pack size: 10 pieces

Resistor 0.25W 13 ohm Applications

• LM317 constant-current source: 1.25 V / 13 Ω gives about 96 mA
• Current sensing: 100 mA through 13 Ω gives a 1.3 V drop
• Gate resistors for MOSFETs
• Emitter resistors in transistor current sources and amplifiers
• Electronics education and prototyping

What's in the Box

• 10 × 13 Ω 0.25 W resistors

Tip: In the LM317 example the resistor dissipates about 0.12 W (P = V² / R), roughly half its rating, which is a good working margin. For more current, put two resistors in parallel to share the heat.

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