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CMS1-8-R Eaton CMS1-8-R is a 2-line surface-mount power line common mode choke with 51.2µH inductance at 100kHz, 2.2A current rating, and 26mOhm DCR.
Mfr Part #:

CMS1-8-R

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton CMS1-8-R is a 2-line surface-mount power line common mode choke with 51.2µH inductance at 100kHz, 2.2A current rating, and 26mOhm DCR.
✓ Total Stock: 2,499 pcs
$ Price Range: $1.27 - $2.54

CMS1-8-R Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Speed Components Ltd ✓
Non-Authorised Inventory information
2,499 pcs
On Request
2499 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

CMS1-8-R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current Rating
Current Rating (Max)
DC Resistance (DCR)
DC Resistance (DCR) (Max)
Filter Type
Height (Max)
Inductance @ Frequency
Mounting Type
Number of Lines
Operating Temperature
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CMS1-8-R Description

Short technical summary and product information.

The Eaton CMS1-8-R is a two-line surface-mount common mode choke designed for power line filtering applications. It provides an inductance of 51.2 microhenries measured at 100kHz and supports a maximum DC current of 2.2 amperes. The typical DC resistance is 26 milliohms, which supports efficient power delivery with minimal loss.

 

This component operates over a wide temperature range from -40°C to +160°C, making it suitable for demanding environments. It is packaged in a horizontal, 4 PC pad configuration that is compatible with standard SMD assembly processes. The overall dimensions are 9.40mm length by 7.20mm width, with a maximum height of 2.60mm.

 

As a common mode choke, this device is intended to suppress common-mode noise on power lines while allowing differential signal currents to pass with minimal attenuation. It is commonly used in DC/DC converters, power supplies, and other equipment requiring electromagnetic interference (EMI) filtering.

 

The part is RoHS3 compliant, REACH unaffected, and has a moisture sensitivity level of 1 (unlimited). No datasheet or verified manufacturer page was available at the time of this compilation, and compliance claims are unverified.

CMS1-8-R Quick Information

Product Type: Common Mode Choke
Series: CMS
Canonical Name: CMS1-8-R Common Mode Power Line Choke
Subcategory: Power Line Choke

CMS1-8-R Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

CMS1-8-R Estimated Pricing

Qty Low High
1+ $2.54 $2.54
10+ $2.09 $2.09
25+ $1.93 $1.93
50+ $1.82 $1.82
100+ $1.71 $1.71
250+ $1.59 $1.59
500+ $1.55 $1.55
2,000+ $1.36 $1.36
4,000+ $1.28 $1.28
6,000+ $1.27 $1.27

Estimated market price range - modelled values for guidance only, not live distributor offers.

CMS1-8-R Features

  • 51.2 µH inductance at 100 kHz test frequency.
  • 2.2 ampere maximum DC current rating.
  • 26 milliohm typical DC resistance (DCR).
  • Surface mount package -40°C to 160°C temperature range.
  • RoHS3 compliant and REACH unaffected (unverified).

CMS1-8-R Applications

  • Common-mode noise filtering in power lines.
  • Input/output filtering for DC/DC converters.
  • EMI suppression in automotive electronics.
  • Used in industrial and consumer power supplies.

CMS1-8-R FAQs

5 frequently asked questions generated from this part’s specifications.
What is the inductance of the CMS1-8-R at 100 kHz?

51.2 microhenries (µH) measured at 100 kHz.

What is the maximum DC current rating?

2.2 amperes (A).

What is the package or case style?

Horizontal, 4 PC Pad surface mount package.

What is the operating temperature range?

-40°C to +160°C.

What is the DC resistance (DCR) maximum?

26 milliohms (mΩ), marked as typical.

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