KEMET SH-301 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The KEMET SH-301 is a 2-line common mode choke designed for power line filtering applications. This through-hole component delivers 3.2 µH inductance at 100 kHz with a maximum current rating of 3A and 22 mOhm DC resistance. The part is Active in product status and maintains full compliance with RoHS3 and REACH regulations. Substitute parts are identified to address inventory availability, specific inductance requirements, or DC resistance specifications while maintaining compatibility within the SH series platform.

Key Parameters

Parameter	Value
Manufacturer Part Number	SH-301
Manufacturer	KEMET
Series	SH
Product Status	Active
Filter Type	Power Line
Number of Lines	2
Inductance @ 100 kHz	3.2 µH
Current Rating (Max)	3A
DC Resistance (Max)	22 mOhm
Voltage Rating - DC	150V
Operating Temperature Range	-25°C to 80°C
Mounting Type	Through Hole
Package / Case	Vertical, 4 PC Pin
RoHS Status	RoHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution eligibility for the SH-301 is determined by the following critical parameters:

Primary Substitution Criteria:

Number of Lines: 2 (all substitutes maintain this specification)
Current Rating (Max): 3A (all substitutes maintain this specification)
Voltage Rating - DC: 150V (all substitutes maintain this specification)
Mounting Type: Through Hole (all substitutes maintain this specification)
Operating Temperature Range: -25°C to 80°C (all substitutes maintain this specification)
RoHS3 Compliance: Required (all substitutes comply)
REACH Status: REACH Unaffected (all substitutes maintain this status)

Variable Parameters Defining Substitution Groups:

Inductance @ 100 kHz: 1.5 µH, 3.2 µH, or 7.5 µH
DC Resistance (Max): 20 mOhm, 22 mOhm, 25 mOhm, or 26 mOhm
Physical Dimensions: Standard (12.5mm L x 10.00mm W x 12.00mm H) or Alternate (14.00mm L x 12.00mm W x 9.50mm H)

The SH-301 operates at 3.2 µH inductance with 22 mOhm DCR in the standard package footprint. Substitutes are available with different inductance values (1.5 µH or 7.5 µH) or with alternative DCR specifications and physical dimensions.

Parameter Comparison

Parameter	SH-301	SH-102	SH-202	SH-302	SH-311
Inductance @ 100 kHz	3.2 µH	1.5 µH	1.5 µH	7.5 µH	3.2 µH
Current Rating (Max)	3A	3A	3A	3A	3A
DC Resistance (Max)	22 mOhm	26 mOhm	20 mOhm	26 mOhm	25 mOhm
Voltage Rating - DC	150V	150V	150V	150V	150V
Operating Temperature	-25°C ~ 80°C	-25°C ~ 80°C	-25°C ~ 80°C	-25°C ~ 80°C	-25°C ~ 80°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Vertical, 4 PC Pin	Vertical, 4 PC Pin	Vertical, 4 PC Pin	Vertical, 4 PC Pin	Vertical, 4 PC Pin
Size / Dimension	12.5mm L x 10.00mm W	12.5mm L x 10.00mm W	12.5mm L x 10.00mm W	12.5mm L x 10.00mm W	14.00mm L x 12.00mm W
Height (Max)	12.00mm	12.00mm	12.00mm	12.00mm	9.50mm
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active	Active
Inventory (Pcs)	1086	951	1067	4866	733

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and full compliance with RoHS3 and REACH regulations, ensuring regulatory continuity in design implementations.

SH-311 Selection: Identical inductance specification (3.2 µH @ 100 kHz) with 25 mOhm DCR. Physical dimensions differ (14.00mm L x 12.00mm W x 9.50mm H versus 12.5mm L x 10.00mm W x 12.00mm H). PCB layout accommodation required.

SH-102 Selection: Reduced inductance (1.5 µH @ 100 kHz) with 26 mOhm DCR. Standard package footprint maintained (12.5mm L x 10.00mm W x 12.00mm H). Applicable where lower inductance filtering is acceptable.

SH-202 Selection: Reduced inductance (1.5 µH @ 100 kHz) with improved DCR specification (20 mOhm). Standard package footprint maintained (12.5mm L x 10.00mm W x 12.00mm H). Lower power dissipation profile.

SH-302 Selection: Increased inductance (7.5 µH @ 100 kHz) with 26 mOhm DCR. Standard package footprint maintained (12.5mm L x 10.00mm W x 12.00mm H). Applicable where higher inductance filtering is required.

Frequently Asked Questions (FAQ)

Q: Can SH-311 directly replace SH-301 on existing PCBs?

A: SH-311 provides identical inductance (3.2 µH @ 100 kHz) and maintains all electrical specifications. However, physical dimensions differ: SH-311 measures 14.00mm L x 12.00mm W x 9.50mm H compared to SH-301 at 12.5mm L x 10.00mm W x 12.00mm H. PCB layout verification is required before substitution.

Q: What is the difference between SH-102 and SH-202?

A: Both parts deliver 1.5 µH inductance at 100 kHz with identical package dimensions (12.5mm L x 10.00mm W x 12.00mm H). SH-202 provides superior DC resistance specification at 20 mOhm maximum compared to SH-102 at 26 mOhm maximum, resulting in lower power dissipation.

Q: When should SH-302 be selected over SH-301?

A: SH-302 delivers 7.5 µH inductance at 100 kHz versus SH-301 at 3.2 µH. Selection depends on circuit filtering requirements. Both maintain standard package footprint (12.5mm L x 10.00mm W x 12.00mm H) and identical current/voltage ratings.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts (SH-102, SH-202, SH-302, SH-311) are RoHS3 Compliant and REACH Unaffected, maintaining regulatory compliance with SH-301.

Q: What is the impact of DC resistance variation among substitutes?

A: DC resistance ranges from 20 mOhm (SH-202) to 26 mOhm (SH-102, SH-302). Higher DCR increases power dissipation proportionally with current. Selection should account for thermal management requirements in the application circuit.

Q: Do all substitutes operate within the same temperature range?

A: All substitute parts operate within -25°C to 80°C, matching SH-301 specifications. No thermal performance differentiation exists among the listed alternatives.

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