SL18 5R006 Equivalent & Substitute Parts

Part Overview

The SL18 5R006 is an inrush current limiter manufactured by Ametherm, rated at 5 Ohms ±20% with a maximum steady-state current of 6 A. This component is designed to limit inrush current in power supply circuits and related applications. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Finding equivalent or substitute parts may be necessary due to inventory availability, lead time requirements, or specific application constraints.

Substiute Parts

SL18 5R006

AmethermIn Stock: 1023SL18 5R006 Datasheet

Current PartRFQ

B57213P0509M301

EPCOS - TDK ElectronicsIn Stock: 10312B57213P0509M301 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of inrush current limiters is determined by the following critical parameters:

• Resistance value and tolerance (5 Ohms ±20%)
• Maximum steady-state current rating (6 A minimum)
• Resistance at rated current (106–110 mOhms acceptable range)
• Physical form factor and lead spacing (must accommodate PCB layout)
• Compliance certifications (ROHS3, REACH Unaffected, EAR99)
• Product status (Active production preferred)

The B57213P0509M301 from EPCOS - TDK Electronics meets all critical electrical parameters and compliance requirements, making it a valid substitute despite differences in physical diameter and lead spacing. Component selection must account for PCB footprint compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the SL18 5R006 and B57213P0509M301 are active production components with identical electrical specifications and full compliance with ROHS3, REACH, and EAR99 classifications. The primary distinction is physical form factor: the B57213P0509M301 features a smaller diameter (14.50mm vs. 19.00mm) with marginally tighter lead spacing (7.50mm vs. 7.80mm). Selection between these parts depends on PCB layout constraints and available mounting space. Both components deliver equivalent electrical performance for inrush current limiting applications at 5 Ohms ±20% and 6 A steady-state current.

Frequently Asked Questions (FAQ)

Q: Can the B57213P0509M301 replace the SL18 5R006 in my circuit?

A: Yes, provided PCB footprint accommodates the smaller 14.50mm diameter and 7.50mm lead spacing. Electrical performance is equivalent across all specified parameters.

Q: What is the significance of the resistance value at rated current?

A: The resistance at current (110 mOhms for SL18 5R006, 106 mOhms for B57213P0509M301) indicates the component's hot resistance during steady-state operation. The 4 mOhm difference is within acceptable tolerance and does not affect functional compatibility.

Q: Are both parts compliant with environmental and export regulations?

A: Yes. Both components are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes.

Q: What is the difference in physical size between these parts?

A: The SL18 5R006 has a 19.00mm diameter with 7.80mm lead spacing, while the B57213P0509M301 has a 14.50mm diameter with 7.50mm lead spacing. The substitute is more compact and may be preferable for space-constrained designs.

Q: Do moisture sensitivity levels differ between these parts?

A: The SL18 5R006 is rated MSL 1 (Unlimited). The B57213P0509M301 is rated as Not Applicable, indicating no moisture sensitivity concern. Both are suitable for standard storage and handling conditions.