MF72-010D15 Inrush Current Limiter Equivalent & Substitute Parts

Part Overview

The MF72-010D15 is an inrush current limiter manufactured by Cantherm, rated at 10 Ohms ±20% with a maximum steady-state current of 5 A. This thermistor-based component is designed to limit inrush current in power supply circuits and is currently in active production status. Substitute parts may be required due to inventory availability, lead time constraints, or specific application requirements within the defined electrical and mechanical parameter ranges.

Substiute Parts

MF72-010D15

CanthermIn Stock: 1159MF72-010D15 Datasheet

Current PartRFQ

MS22 30005

AmethermIn Stock: 3014MS22 30005 Datasheet

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SL22 10005

AmethermIn Stock: 2697SL22 10005 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MF72-010D15 is determined by the following critical parameters:

Primary Matching Criteria:

• Resistance @ 25°C: 10 Ohms (exact match required)
• Current - Steady State Max: 5 A (minimum requirement)
• Resistance @ Current: 180 mOhms (functional equivalence)
• RoHS3 Compliance: Required
• REACH Unaffected Status: Required

Secondary Considerations:

• Tolerance: ±20% or tighter acceptable
• Diameter and Lead Spacing: Physical fit within application constraints
• Product Status: Active production preferred

The substitute parts listed below meet the primary electrical matching criteria and regulatory compliance requirements. Physical dimensions may vary within acceptable installation tolerances.

Parameter Comparison

Engineering Selection Recommendations

SL22 10005 (Ametherm) is the primary electrical equivalent to the MF72-010D15. Both components share identical resistance values at 25°C (10 Ohms) and at operating current (180 mOhms), with matching 5 A steady-state current ratings. The SL22 10005 features tighter tolerance (±15% versus ±20%), providing improved consistency. Both parts are ROHS3 compliant and REACH unaffected. Physical dimensions differ, with the SL22 10005 measuring 0.866" diameter and 0.307" lead spacing compared to the MF72-010D15's 0.689" diameter and 0.394" lead spacing. Installation feasibility depends on available board space and mounting constraints.

MS22 30005 (Ametherm) is not an electrical equivalent due to its 30 Ohm resistance value, which differs from the required 10 Ohm specification. This part is listed as a substitute only in the original documentation and should not be selected for direct replacement applications requiring 10 Ohm inrush current limiting. The MS22 30005 does provide UL approval certification, which may be relevant for specific regulatory requirements.

All substitute candidates maintain active production status and full regulatory compliance with ROHS3 and REACH requirements.

Frequently Asked Questions (FAQ)

Q: Can the SL22 10005 directly replace the MF72-010D15 in all applications?

A: The SL22 10005 is electrically equivalent in resistance and current ratings. Substitution feasibility depends on physical space constraints. The SL22 10005 has a larger diameter (0.866" versus 0.689") and different lead spacing (0.307" versus 0.394"), requiring verification of PCB layout compatibility.

Q: Why is the MS22 30005 listed as a substitute if it has 30 Ohms instead of 10 Ohms?

A: The MS22 30005 is included in the original substitute list but does not meet the primary electrical matching criteria for direct replacement. It is electrically distinct and should only be considered if application requirements specifically call for 30 Ohm inrush current limiting.

Q: What is the significance of the tolerance difference between ±20% and ±15%?

A: The SL22 10005 and MS22 30005 both feature ±15% tolerance, which is tighter than the MF72-010D15's ±20% tolerance. Tighter tolerance provides more consistent performance across production batches and temperature ranges, which may be beneficial for precision applications.

Q: Are there any compliance differences between the substitute parts?

A: All three parts are ROHS3 compliant and REACH unaffected. The MS22 30005 carries UL approval, while the MF72-010D15 and SL22 10005 do not list specific approval agencies. UL certification may be required for certain end-use applications.

Q: What is the Moisture Sensitivity Level (MSL) difference?

A: The MF72-010D15 lists MSL as Not Applicable, while both Ametherm substitutes specify MSL 1 (Unlimited). This indicates the Ametherm parts have no moisture sensitivity restrictions during storage and handling.

Q: How do I determine which substitute is appropriate for my application?

A: For direct electrical replacement, select the SL22 10005. Verify that the larger physical dimensions (0.866" diameter, 0.307" lead spacing) fit within your PCB layout. If UL certification is required, the MS22 30005 provides this approval, but only if your application can accommodate 30 Ohm resistance instead of 10 Ohms.