SMD4FRA011 Equivalent & Substitute Parts

Part Overview

The SMD4FRA011 is a 4-position circular connector receptacle with female sockets designed for solder termination. Manufactured by Switchcraft Inc., this Mini DIN connector is classified as an active product with full RoHS3 compliance. The connector features a push-pull fastening mechanism, keyed orientation, and shielded construction suitable for communication systems, instrumentation, and medical applications. Substitute parts may be required due to inventory constraints, lead time considerations, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

SMD4FRA011

Switchcraft Inc.In Stock: 778SMD4FRA011 Datasheet

Current PartRFQ

5749181-1

TE Connectivity AMP ConnectorsIn Stock: 93765749181-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMD4FRA011 is determined by strict alignment with the following core parameters:

• Connector type must be receptacle with female sockets
• Position count must be exactly 4
• Shell size must be Mini DIN
• Mounting configuration must be through hole, right angle
• Termination method must be solder
• Fastening mechanism must be push-pull
• Orientation must be keyed
• Shielding must be present
• Contact material must be copper alloy
• Shell material must be thermoplastic
• Contact finish must be gold-plated
• Material flammability rating must meet UL94 V-0

The substitute part 5749181-1 manufactured by TE Connectivity AMP Connectors satisfies all mandatory parameters for direct substitution. Variations in current rating, voltage rating, operating temperature range, and specific features do not preclude substitution when the core mechanical and electrical interface parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

Both SMD4FRA011 and 5749181-1 are active products with ROHS3 compliance and identical moisture sensitivity ratings. Selection between these parts should be based on application-specific electrical requirements and inventory availability.

The SMD4FRA011 supports dual current ratings (1A and 2A) with 100VAC and 12VDC voltage specifications. The 5749181-1 is rated for 1A at 30VDC with a defined operating temperature range of -55°C to 105°C. Applications requiring the higher voltage or dual current capability of the SMD4FRA011 should use the primary part. Applications operating within the 30VDC specification and -55°C to 105°C temperature range may use 5749181-1 as a substitute.

Both parts maintain identical mechanical interfaces, fastening mechanisms, and contact materials, ensuring physical and electrical compatibility at the connector level.

Frequently Asked Questions (FAQ)

Q: Can 5749181-1 be used as a direct replacement for SMD4FRA011?

A: Yes, 5749181-1 is a direct mechanical and electrical substitute when application voltage and current requirements do not exceed 30VDC and 1A respectively. Both connectors share identical shell size, position count, mounting configuration, termination method, and contact materials.

Q: What are the key differences between these two connectors?

A: The primary differences are current rating (SMD4FRA011 supports up to 2A versus 1A for 5749181-1), voltage rating (SMD4FRA011 supports 100VAC and 12VDC versus 30VDC for 5749181-1), and operating temperature specification (5749181-1 specifies -55°C to 105°C while SMD4FRA011 does not provide this parameter). All mechanical and core electrical interface parameters are identical.

Q: Are there packaging differences between these parts?

A: SMD4FRA011 packaging is not specified in the available data. 5749181-1 is supplied in tube packaging. Verify packaging requirements with your procurement process.

Q: Do both connectors meet the same compliance standards?

A: Yes, both parts are ROHS3 compliant with UL94 V-0 material flammability rating and MSL 1 (Unlimited) moisture sensitivity level. Both are classified as active products.

Q: Which connector should I select for a new design?

A: Selection depends on application electrical specifications. If your design requires 2A current capability or 100VAC operation, use SMD4FRA011. If your application operates at 30VDC or below with 1A maximum current, either part is suitable. Verify operating temperature requirements against the 5749181-1 specification of -55°C to 105°C.