SN8S-300 Equivalent & Substitute Parts

Part Overview

The SN8S-300 is a 26 µH common mode choke (CMC) rated for 2A maximum current with 42 mOhm DC resistance, designed for power line filtering applications. This through-hole mounted component operates across a temperature range of -25°C to 105°C and maintains active product status with full RoHS3 compliance. Substitute parts are identified to address inventory availability, lead time constraints, or design flexibility requirements while maintaining functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

SN8S-300

KEMETIn Stock: 703SN8S-300 Datasheet

Current PartRFQ

SN5-300

KEMETIn Stock: 1087SN5-300 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The SN5-300 is classified as a parametric equivalent to the SN8S-300 based on the following substitution criteria:

Matching Parameters:

• Current Rating: 2A (identical)
• DC Resistance: 42 mOhm (identical)
• Number of Lines: 2 (identical)
• Mounting Type: Through Hole (identical)
• Operating Temperature Range: -25°C ~ 105°C (identical)
• Filter Type: Power Line (identical)
• RoHS3 Compliance: Yes (identical)

Variant Parameter:

• Inductance @ 100 kHz: 25 µH (SN5-300) versus 26 µH (SN8S-300)
• Height (Max): 0.571" / 14.50 mm (SN5-300) versus 0.689" / 17.50 mm (SN8S-300)

The SN5-300 operates within the same electrical performance envelope for current handling and thermal characteristics. The inductance variance of 1 µH represents a 3.8% reduction, and the reduced physical height accommodates space-constrained applications while maintaining identical pin configuration and mounting methodology.

Parameter Comparison

Engineering Selection Recommendations

Both the SN8S-300 and SN5-300 maintain active product status with identical regulatory compliance certifications (RoHS3, REACH Unaffected, EAR99 classification). Selection between these parts is determined by application-specific requirements:

SN8S-300 Selection Criteria:

• Applications requiring 26 µH inductance specification
• Designs with vertical clearance accommodating 17.50 mm height
• Primary component availability or established supply chain preference

SN5-300 Selection Criteria:

• Applications tolerating 25 µH inductance (3.8% reduction from SN8S-300)
• Space-constrained PCB layouts requiring 14.50 mm maximum height
• Inventory availability or lead time optimization (1040 pcs in stock versus 657 pcs)

Both parts satisfy identical current rating (2A), DC resistance (42 mOhm), temperature operating range (-25°C to 105°C), and through-hole mounting requirements. The substitution is valid for power line filtering applications where the inductance tolerance and physical dimensions align with circuit design specifications.

Frequently Asked Questions (FAQ)

Q: Can the SN5-300 directly replace the SN8S-300 in my circuit?

A: Direct substitution is valid if your circuit design accommodates a 25 µH inductance value (versus 26 µH) and the reduced physical height of 14.50 mm (versus 17.50 mm). Both parts share identical current rating, DC resistance, operating temperature range, and mounting configuration.

Q: What is the inductance difference between these parts?

A: The SN5-300 provides 25 µH at 100 kHz, representing a 1 µH reduction (3.8% lower) compared to the SN8S-300 at 26 µH. This variance must be evaluated against your circuit's filtering requirements and frequency response specifications.

Q: Are the pin configurations identical?

A: Yes. Both parts use identical through-hole mounting with Vertical, No Base, 2 PC Pin package configuration, ensuring PCB footprint compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SN8S-300 and SN5-300 are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8504.50.8000.

Q: What is the primary advantage of the SN5-300?

A: The SN5-300 offers a 3 mm reduction in maximum height (14.50 mm versus 17.50 mm), providing design flexibility for space-constrained applications while maintaining all electrical performance parameters.

Q: Can I use the SN5-300 in a high-frequency application?

A: Both parts are specified at 100 kHz. Application suitability depends on your circuit's operating frequency and the inductance tolerance requirements. The 1 µH difference must be evaluated within your specific filtering application.

Q: Are there any thermal considerations when substituting?

A: No. Both parts operate across the identical temperature range of -25°C to 105°C with identical DC resistance characteristics, ensuring equivalent thermal performance in power line filtering applications.