RL-1256 Through Hole Power Inductor

The RL-1256 Through Hole Power Inductor series is designed for high-current applications where compact size and performance are critical. Featuring an epoxy-coated radial leaded construction, this series offers 367 standard inductance values to suit a broad range of power circuit needs. It is optimized for switching regulated power supplies, with high saturation flux density materials that support efficient energy transfer. With optional mechanical mounting and sleeved coil finishing, the RL-1256 is engineered for durability and flexibility in PCB designs.
- Available in 367 standard inductance values
- High saturation flux density for efficient power conversion
- Epoxy-coated radial construction
- UL VW-1 rated sleeving available
- Center hole for mechanical mounting
- Leads tinned to 1/16″ of body for PC board insertion
- Optional spacer available for board washing compatibility
- Supports MIL-T-27D encapsulation when specified
- Operating temperature range: -40°C to +130°C
- Storage temperature range: -55°C to +130°C
- Inductance tolerance: ±10% (values ≥10µH), ±20% (values <10µH)
- Dielectric strength: 500 VDC for 1 minute
- Saturation current: lowers inductance by 5%
- RDC measured at: 20°C
- Lead finish: tinned to within 1/16″ of housing
- Mounting: Clearance hole for 4-40 or 8-32 screw depending on size
- Weight range: 13.0g to 583.0g (0.46oz to 20.57oz)
The RL-1256 inductor series is ideally suited for power electronics that demand compact inductors capable of handling high currents. Common applications include speaker crossover networks, power amplifiers, filters, switching power supplies, and SCR/TRIAC control systems. Its mechanical mounting options and robust environmental ratings make it well-suited for industrial and high-reliability environments.