Amphenol ICC 91900-21525 Rectangular Connector Header – Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 91900-21525 is a 25-position connector header with center strip contacts designed for surface mount applications. This part features gold-plated contacts and solder retention, operating within the Conan™ and MezzSelect™ series. The 91900-21525 is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

91900-21525

Amphenol ICC (FCI)In Stock: 85491900-21525 Datasheet

Current PartRFQ

91900-21525LF

Amphenol ICC (FCI)In Stock: 97291900-21525LF Datasheet

DirectRFQ

91900-31525LF

Amphenol ICC (FCI)In Stock: 78791900-31525LF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 91900-21525 are identified based on electrical and mechanical parameter equivalence. The following criteria determine substitutability:

• Connector type and contact configuration (Header, Center Strip Contacts)
• Position count (25 positions)
• Pitch spacing (0.039" / 1.00mm)
• Row configuration (2 rows)
• Mounting technology (Surface Mount)
• Contact finish specification (Gold or Gold, GXT™)
• Contact finish thickness (15.0µin / 0.38µm)
• Mated stacking height (7mm)
• Height above board (0.147" / 3.72mm)
• Solder retention feature

All substitute parts maintain identical electrical and mechanical parameters, ensuring direct functional equivalence within the specified application envelope.

Parameter Comparison

Engineering Selection Recommendations

The 91900-21525 is obsolete and should be replaced with an active equivalent. Both 91900-21525LF and 91900-31525LF are functionally equivalent alternatives with identical electrical and mechanical parameters.

91900-21525LF is the direct manufacturer replacement, maintaining the same base product designation with lead-free (LF) compliance. This part is RoHS compliant and actively produced.

91900-31525LF is a parametric equivalent offering identical functional specifications. This part is also RoHS compliant and actively produced.

Both substitute parts are available in tube packaging and provide superior compliance status compared to the obsolete original part. Selection between the two substitutes should be based on procurement availability and internal design qualification requirements, as both meet all specified electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can 91900-21525LF and 91900-31525LF be used interchangeably with 91900-21525?

A: Yes. Both parts maintain identical electrical and mechanical parameters, including position count, pitch, mounting type, contact finish, and stacking height. Direct substitution is supported.

Q: What is the difference between 91900-21525LF and 91900-31525LF?

A: Both parts are parametric equivalents with identical specifications. The difference lies in the base product number designation (21525 vs. 31525). Both are active, RoHS compliant, and functionally equivalent for the specified application.

Q: Why is the original 91900-21525 marked as obsolete?

A: The 91900-21525 is non-RoHS compliant. Amphenol ICC has transitioned to RoHS-compliant alternatives (91900-21525LF and 91900-31525LF) to meet current regulatory requirements and industry standards.

Q: Are there packaging differences between the substitute parts?

A: Both 91900-21525LF and 91900-31525LF are supplied in tube packaging. The original 91900-21525 packaging specification was not provided in the technical data.

Q: What compliance certifications apply to the substitute parts?

A: Both 91900-21525LF and 91900-31525LF are RoHS compliant and REACH affected. Both carry ECCN classification EAR99 and HTSUS code 8536.69.4040.