News Release | New Product: Noise Suppression Ferrite Beads ‘PRBG Series’
February 11, 2026
Sagami Elec Co., Ltd. is pleased to announce the development of the noise suppression ferrite beads ‘PRBG Series’ (W3.8 mm × D4.3 mm × H3.2 mm or H3.9 mm), with sample now available.
In recent years, electronic circuits for automotive and industrial applications have continued to evolve toward higher performance and greater miniaturization, driving the need for increased functional integration within limited PCB space. At the same time, growing noise generated by motors and high-speed digital circuits has made reliable EMC countermeasures in the high-frequency range increasingly critical. As a result, compact, high-reliability noise filters have become essential components that significantly impact design flexibility and overall product competitiveness.
The PRBG Series is designed as a component for automotive small DC motors, achieving both high impedance performance and high current capability across a frequency range from several hundred MHz to 3 GHz, including parts of the 5G/LTE bands.
By integrating two independent ferrite beads into a single package, the PRBG Series significantly reduces PCB mounting area. In addition, compliance with AEC-Q200 and a wide operating temperature range of –40°C to +150°C (including self-heating) ensure high reliability and stable performance even under harsh automotive operating conditions.
Not limited to automotive applications, the PRBG Series can also be widely used as an EMC countermeasure component for high-frequency and high-current lines, contributing to compliance with various CISPR standards.
Main Applications
- Automotive small DC motors
- EMC noise suppression
Features
- Integrated structure with two independent ferrite beads
- High impedance and high current capability from 100 MHz to 3 GHz
- Reduced mounting area
- AEC-Q200 compliant
- Operating temperature range: –40°C to +150°C (including self-heating)
Electrical Characteristics
| Part Number | Impedance (Ω) min. |
DCR (mΩ) | Temperature Rise Allowable Current(A) |
|
|---|---|---|---|---|
| Max | Typical | |||
| PRBG4029C | 22 | 0.73 | 0.67 | 12.3 |
| PRBG4036C | 37 | 0.93 | 0.85 | 12.0 |
Impedance Measurement Conditions: 100MHz, 0.1V
Allowable Current for Temperature Rise: Current value at which the core surface temperature rises by 40°C.
Sagami Elec Co., Ltd. will continue to expand its product lineup to address evolving market needs and to support a wide range of solutions.