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Bussmann DR125-101-R 100uH Shielded Drum Core Inductor
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pBussmann DR125-101-R — 100uH inductor, shielded./p
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Bussmann DR125-101-R 100uH Shielded Drum Core Inductor
The DR125-101-R from Bussmann provides 100uH, DCR 0.025 ohm, rated 1.91A.
Technical Data
| Parameter | Rating |
|---|---|
| Part Number | DR125-101-R |
| Inductance | 100uH |
| Current Rating | 1.91A |
| Package Size | Standard SMT |
| Core Type | Drum Core |
| DC Resistance | 0.025 ohm |
| Shielding | Shielded (Low EMI) |
| Operating Temperature | -40C to +125C |
| Mounting Style | Surface Mount (SMT) |
| Compliance | RoHS, REACH, CE |
Practical Notes
- Common-mode impedance rises with frequency, so the part is chosen by the band it must suppress.
- Differential-mode noise is not addressed by a common-mode choke alone.
- DCR adds to the supply drop — check it against the current budget.
- Winding capacitance sets how well high-frequency noise is blocked.
- At 0.025 ohm DCR, voltage lost across the choke grows with load current.
- Keep the working current under 1.91A; saturation collapses the impedance.
Application Scenarios
Common installation contexts include:
- battery
- telecom
- industrial control
- automotive
- DC-DC
Buying Notes
Order code DR125-101-R from Bussmann, supplied in Standard SMT. Confirm the exact suffix before release.
Shenzhen Gaorunxin Technology Co., Ltd
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