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shenzhen kawaxin electronics co.,ltd
KWX Ceramic cement resistor BPR

KWX Ceramic cement resistor BPR

Product catalog summary

Overview: The document provides technical specifications and guidelines for BPR Cement Resistors manufactured by Shenzhen KWX Electronics Co., Ltd. These resistors are designed for power type current detection and are flame retardant, housed in a ceramic case.

Key Features:

Power type current detecting resistors.
Flame retardant ceramic case.
Automatic insertion applicable for a 5mm pitch between terminals.
Low inductance and space-saving design.
Compliance with EU-RoHS requirements.

Construction and Dimensions:

Components include a ceramic case, cement, resistive element, lead wire, welding, and marking.
Dimensions vary by style, with specific measurements provided for each type.

Ordering Information:

Series Name: BPR
Power Rating: Options range from 2W to 10W, including combinations like 5W+5W.
Resistance Tolerance: Options include ±1%, ±2%, ±5%, and ±10%.
Resistance Value: Specified in ohms, with examples provided.
Lead Wire Diameter: Options include Φ0.6mm and Φ0.8mm.

Applications and Ratings:

Derating Curve: Power rating must be derated for ambient temperatures of 70℃ or above.
Resistance Range: Varies from 0.01Ω to 1KΩ depending on the style.
Dielectric Withstanding Voltage: 500V with a T.C.R. of ±350ppm/℃.

Performance Requirements:

Resistance and T.C.R. must be within specified tolerances.
Various tests are outlined, including short time overload, load life, moisture resistance, and temperature cycle.
Insulation resistance must exceed 10MΩ.

Precautions for Use:

Resistance values of 50mΩ or under may change after soldering depending on pad pattern size or solder amount.
Recommended solderability conditions include a peak temperature of 260℃±5℃ for 5-10 seconds.

Catalog excerpts

0 Features I Power type current detecting resistors. II Flame retardant resistors in Ceramic Case. DI Automatic insertion for a 5mm pitch between terminals is applicable. IV Low inductance. V Space saving. W Products meet EU-RoHS requirements.

Open the catalog to page 1

Lead wire Lead wire Diameter 77 = 7W+7W Series Name Power Resistance Resistance Rating Tolerance (6)Lead wire: C = SnCu> CP = Cp wire Resistance Value(Q) Contact us when you have control request for environmental hazardous material other than the substance specified by EU-RoHS. For further information on radial taping, please refer to APPENDIX C on the back page. For resistors operated at an ambient temperature of 70 C or above , a power rating shall be derated in accordance with the above derating curve.

Open the catalog to page 2

• In the resistance values of 50mQ or under, the resistance value after soldering may change depending on the size of pad pattern or solder amount. Make sure the effect of decline, increase of resistance value before designing. • Recommendation condition of a solderability. Peak temperature:260°C ±5°C Peak time:5~ 10s

Open the catalog to page 3

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