Amphenol ICC 51939-213 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51939-213 is a 36-position blade power connector header designed for board edge, through-hole, right-angle mounting applications. This connector features male pins and blades with a 0.100" (2.54mm) pitch, organized in 4 rows with a typical contact layout of 12 signal and 24 power positions. The connector is part of the PwrBlade® series and utilizes gold or gold GXT™ contact finish.

The 51939-213 is currently classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this connector specification.

Key Parameters

Parameter	Value
Connector Type	Header, Male Pins and Blades
Connector Style	Blade Power
Number of Positions	36
Pitch	0.100" (2.54mm)
Number of Rows	4
Contact Layout	12 Signal, 24 Power
Mounting Type	Board Edge, Through Hole, Right Angle
Termination	Solder
Contact Finish	Gold or Gold, GXT™
Contact Finish Thickness	30.0µin (0.76µm)
Color	Black
Material Flammability Rating	UL94 V-0
Operating Temperature Range	-20°C ~ 105°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Series	PwrBlade®

Substitute Part Grouping Explanation

Substitution eligibility for the 51939-213 is determined by strict equivalence across the following critical parameters:

Connector type and style (Header, Male Pins and Blades; Blade Power)
Number of positions (36)
Pitch specification (0.100" / 2.54mm)
Number of rows (4)
Contact layout (12 Signal, 24 Power)
Mounting configuration (Board Edge, Through Hole, Right Angle)
Termination method (Solder)
Contact finish specification (Gold or Gold, GXT™)
Contact finish thickness (30.0µin / 0.76µm)
Color (Black)
Flammability rating (UL94 V-0)
Operating temperature range (-20°C ~ 105°C)
Moisture sensitivity level (MSL 1)

The substitute part 51939-213LF meets all these parameters and is therefore classified as a direct equivalent.

Parameter Comparison

Parameter	51939-213 (Main Part)	51939-213LF (Substitute)
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Category	Backplane Connectors	Backplane Connectors
Description	CONN HDR BLADE PWR 36POS EDGE MT	CONN HDR BLADE PWR 36POS EDGE MT
Series	PwrBlade®	PwrBlade®
Connector Type	Header, Male Pins and Blades	Header, Male Pins and Blades
Connector Style	Blade Power	Blade Power
Number of Positions	36	36
Number of Positions Loaded	All	All
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	4	4
Mounting Type	Board Edge, Through Hole, Right Angle	Board Edge, Through Hole, Right Angle
Termination	Solder	Solder
Contact Layout, Typical	12 Signal, 24 Power	12 Signal, 24 Power
Contact Finish	Gold or Gold, GXT™	Gold or Gold, GXT™
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)
Color	Black	Black
Material Flammability Rating	UL94 V-0	UL94 V-0
Operating Temperature	-20°C ~ 105°C	-20°C ~ 105°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040
Packaging	Bulk	Tray
Inventory Status	807 Pcs New Original In Stock	690 Pcs New Original In Stock

Engineering Selection Recommendations

The 51939-213LF is the direct equivalent substitute for the obsolete 51939-213. Both parts are electrically and mechanically identical across all specified parameters.

The primary distinction between these parts is product status and regulatory compliance. The 51939-213 is obsolete and RoHS non-compliant, while the 51939-213LF is active and RoHS compliant. The 51939-213LF also includes REACH affected status documentation.

For new designs or ongoing production requiring this connector specification, the 51939-213LF is the appropriate selection. The part maintains full compatibility with existing board designs and assembly processes while providing access to current inventory and regulatory compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the 51939-213LF be used as a direct replacement for the 51939-213?

A: Yes. The 51939-213LF is a direct equivalent substitute. All electrical and mechanical parameters are identical, including connector type, position count, pitch, mounting configuration, contact finish, and operating specifications.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and regulatory compliance. The 51939-213 is obsolete and RoHS non-compliant. The 51939-213LF is an active product that meets RoHS compliance requirements and includes REACH affected status documentation. Packaging differs: the original uses bulk packaging while the substitute uses tray packaging.

Q: Are there any compatibility concerns when switching from 51939-213 to 51939-213LF?

A: No compatibility concerns exist. The parts are mechanically and electrically equivalent. Board layouts, mating connectors, and assembly processes remain unchanged.

Q: Does the packaging difference affect component selection?

A: Packaging format (bulk versus tray) does not affect electrical or mechanical compatibility. Selection should be based on inventory management and handling requirements for your production process.

Q: What certifications apply to the 51939-213LF?

A: The 51939-213LF meets UL94 V-0 flammability requirements, is RoHS compliant, and is REACH affected. Both parts share the same ECCN (EAR99) and HTSUS (8536.69.4040) classifications.

Q: Is the 51939-213LF suitable for the same operating temperature range?

A: Yes. Both parts operate across the identical temperature range of -20°C to 105°C with MSL 1 (Unlimited) moisture sensitivity level.

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