Amphenol ICC 51750-049 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51750-049 is a 60-position blade power receptacle connector from the PwrBlade® series, designed for through-hole PCB mounting applications. This connector features female sockets and blade sockets with a 0.100" (2.54mm) pitch, supporting 48 signal and 12 power contacts across 4 rows.

The 51750-049 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support legacy system maintenance where this connector is currently deployed.

Substiute Parts

51750-049

Amphenol ICC (FCI)In Stock: 97351750-049 Datasheet

Current PartRFQ

51750-049LF

Amphenol ICC (FCI)In Stock: 93351750-049LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 51750-049 is determined by strict alignment with the following electrical and mechanical parameters:

• Connector Type: Receptacle with female sockets and blade sockets
• Position Count: 60 positions
• Pitch: 0.100" (2.54mm)
• Row Configuration: 4 rows
• Contact Layout: 48 signal, 12 power
• Mounting Method: Through hole
• Termination Style: Press-fit
• Contact Finish: Gold or Gold, GXT™
• Operating Temperature: -20°C ~ 105°C
• Flammability Rating: UL94 V-0
• Connector Style: Blade Power
• Features: Board Lock, Guide Pin

Parts meeting all these criteria are classified as direct substitutes. Variations in packaging, RoHS compliance status, or product lifecycle stage do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 51750-049LF is a direct electrical and mechanical substitute for the 51750-049. Both connectors share identical specifications across all critical parameters: connector type, position count, pitch, row configuration, contact layout, mounting method, termination style, contact finish, operating temperature range, and flammability rating.

The primary distinction between these parts is product lifecycle status and compliance posture. The 51750-049 is obsolete, while the 51750-049LF maintains active product status. Additionally, the 51750-049LF is RoHS compliant and REACH affected, whereas the 51750-049 is RoHS non-compliant.

For new designs or systems requiring regulatory compliance with current environmental standards, the 51750-049LF is the appropriate selection. For legacy system maintenance where the original 51750-049 is specified, the 51750-049LF provides full functional equivalence with improved compliance posture.

Frequently Asked Questions (FAQ)

Q: Can the 51750-049LF be used as a direct replacement for the 51750-049 in existing assemblies?

A: Yes. The 51750-049LF is electrically and mechanically identical to the 51750-049. All connector parameters—position count, pitch, contact layout, mounting type, termination method, and operating specifications—are identical. The connectors are interchangeable at the board level.

Q: What is the significance of the "LF" suffix in the part number 51750-049LF?

A: The "LF" designation indicates lead-free construction and RoHS compliance. This reflects the part's adherence to current environmental and regulatory standards for electronic components.

Q: Are there packaging differences between the 51750-049 and 51750-049LF?

A: Yes. The 51750-049 packaging is not specified in available documentation. The 51750-049LF is supplied in tray packaging. Packaging differences do not affect connector functionality or compatibility.

Q: What are the key parameters that determine substitution eligibility for this connector?

A: Substitution eligibility is determined by: connector type (receptacle with female and blade sockets), position count (60), pitch (0.100"), row configuration (4 rows), contact layout (48 signal, 12 power), mounting type (through hole), termination method (press-fit), contact finish (gold), operating temperature range (-20°C to 105°C), and flammability rating (UL94 V-0).

Q: Is the 51750-049LF suitable for applications requiring RoHS compliance?

A: Yes. The 51750-049LF is RoHS compliant and REACH affected, making it suitable for applications and markets with environmental compliance requirements.