Amphenol ICC 71920-311 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 71920-311 is an 11-position receptacle connector from the Dubox™ series, designed for board-to-board applications with 0.100" (2.54mm) pitch through-hole mounting. This connector features gold-plated mating contacts and tin-plated posts for reliable solder termination with push-pull fastening.

The 71920-311 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and maintenance requirements for systems utilizing this connector.

Substiute Parts

71920-311

Amphenol ICC (FCI)In Stock: 125571920-311 Datasheet

Current PartRFQ

71920-311LF

Amphenol ICC (FCI)In Stock: 83271920-311LF Datasheet

DirectRFQ

71991-802LF

Amphenol ICC (FCI)In Stock: 136171991-802LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 71920-311 is determined by the following critical parameters:

• Connector Series & Manufacturer: Parts must be from the Amphenol ICC Dubox™ series to ensure mechanical and electrical compatibility
• Connector Type & Contact Configuration: Receptacle, bottom or top entry with female socket contacts
• Position Count & Pitch: 11 positions at 0.100" (2.54mm) mating pitch
• Mounting & Termination: Through-hole solder termination with push-pull fastening
• Contact Materials & Finishes: Gold-plated mating contacts and tin-plated posts
• Insulation Specifications: Thermoplastic, glass-filled insulation with UL94 V-0 rating

The 71920-311LF is a direct equivalent with identical electrical and mechanical specifications. The 71991-802LF differs in position count (4 positions vs. 11 positions) and row configuration (2 rows vs. 1 row), making it unsuitable as a direct substitute for applications requiring 11-position connectivity.

Parameter Comparison

Engineering Selection Recommendations

71920-311LF is the recommended direct substitute for the obsolete 71920-311. Both parts share identical electrical and mechanical specifications, including 11-position configuration, 0.100" pitch, gold-plated mating contacts, and UL94 V-0 insulation rating. The 71920-311LF is currently in active production status with 766 units in stock. The primary distinction is regulatory compliance: the 71920-311LF is RoHS Compliant and REACH Affected, whereas the original part is RoHS non-compliant and REACH Unaffected. For new designs or systems requiring regulatory compliance, the 71920-311LF is the appropriate selection.

71991-802LF is not a direct substitute. While it shares the same series, connector type, pitch, and contact materials, it is configured with only 4 positions arranged in 2 rows, compared to the 11-position, single-row configuration of the 71920-311. This part is suitable only for applications requiring 4-position connectivity.

Frequently Asked Questions (FAQ)

Q: Can the 71920-311LF be used as a direct replacement for the 71920-311?

A: Yes. The 71920-311LF is electrically and mechanically equivalent to the 71920-311. Both connectors have 11 positions at 0.100" pitch, identical contact materials and finishes, and the same UL94 V-0 flammability rating. The primary difference is that the 71920-311LF is RoHS Compliant and currently in active production, whereas the 71920-311 is obsolete and RoHS non-compliant.

Q: Why is the 71991-802LF listed if it cannot substitute the 71920-311?

A: The 71991-802LF is included for reference purposes as it shares the same Dubox™ series, manufacturer, and fundamental connector characteristics. However, its 4-position, 2-row configuration makes it incompatible with applications designed for 11-position, single-row connectivity. It is not a functional substitute.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: connector series (Dubox™), position count (11), row configuration (1 row), mating pitch (0.100"), connector type (receptacle, bottom or top entry), contact type (female socket), mounting method (through-hole), termination (solder), fastening type (push-pull), contact materials (phosphor bronze), and contact finishes (gold mating, tin post).

Q: Does packaging affect connector compatibility?

A: Packaging (bulk vs. tube) does not affect electrical or mechanical compatibility. The 71920-311 was supplied in bulk packaging, while the 71920-311LF is supplied in tube packaging. Both connectors are functionally identical and interchangeable in circuit applications.

Q: Are there compliance differences between the 71920-311 and 71920-311LF?

A: Yes. The 71920-311LF is RoHS Compliant and REACH Affected, while the 71920-311 is RoHS non-compliant and REACH Unaffected. For applications subject to RoHS or REACH regulations, the 71920-311LF is the appropriate selection.