25W, 35W, 50W high - pulse overload resistors.

Technical Characteristics

Suitable for installation and use conditions without air cooling (better performance with fans). Primarily applied in circuits that require absorbing large pulse energy within a short period, featuring inductance-free, high thermal capacity, high temperature resistance, small size, stable performance, and other advantages. It is suitable for random high-intensity pulse energy discharge resistors, braking resistors for variable frequency motors, pre-charge resistors, etc.

RC circuits are utilized for pulse electrical load testing of the resistors, with specific parameters detailed in the table below.

Special Design of Outer Structure: Thick-film resistors are fired onto the surface of a 96% high-quality cylindrical ceramic substrate, with brass terminals crimped at both ends, each with an M4 threaded hole serving as the resistor's lead-out terminal and fixed support.

Excellent pulse load capacity.

Raw materials comply with UL94 - V0.

Specifications

Resistance Range: 10 ~ 1kΩ (other resistances can be ordered upon negotiation)

Resistance Accuracy: ±5% ~ ±10%

Temperature Coefficient: ±250ppm/°C (25°C ~ 85°C) (other temperature coefficient requirements can be ordered upon negotiation)

Thermal Capacity
25W: 0.031KJ/°C
35W: 0.051KJ/°C
50W: 0.13KJ/°C

Maximum Impulse Voltage: 1500V (supply can be coordinated beyond this requirement)

Rated Power：
25W
35W
50W

Resistor Mounting: M4 screw, maximum torque of 3Nm

Technical Parameters