3M 3764-6503UG Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3764-6503UG is a shrouded rectangular connector header with 64 positions at 2.54mm pitch, designed for through-hole board-to-cable/wire applications. This component features a vertical orientation with solder termination and latch lock/eject hooks. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	64
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Orientation	Vertical
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Shape	Square
Material Flammability Rating	UL94 V-0
Operating Temperature Range	-55°C ~ 105°C
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 3M 3764-6503UG is determined by the following critical parameters:

Position Count & Pitch: 64 positions at 0.100" (2.54mm) mating pitch with 2-row configuration
Connector Orientation: Vertical mounting only
Mounting Method: Through-hole solder termination
Shrouding Configuration: 4-wall shrouded design with keying slot
Contact Configuration: Male pin, square contact shape
Fastening Type: Latch lock/eject hooks
Environmental Rating: UL94 V-0 flammability, MSL 1

All substitute parts listed maintain these core electrical and mechanical parameters. Variations in contact length, insulation height, contact finish specifications, and operating temperature ranges are permitted within the scope of functional equivalence for this connector category.

Parameter Comparison

Parameter	3M 3764-6503UG	HARTING 09185646914	HARTING 09195646904	HARTING 09195646914	TE Connectivity 1-5499160-2	Amphenol ICC 71918-264LF
Manufacturer	3M	HARTING	HARTING	HARTING	TE Connectivity AMP Connectors	Amphenol ICC (FCI)
Number of Positions	64	64	64	64	64	64
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2	2	2	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Contact Shape	Square	Square	Square	Square	Square	Square
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Operating Temperature Range	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C	Not specified
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

Primary Recommendation: TE Connectivity 1-5499160-2

The TE Connectivity 1-5499160-2 provides the closest functional match to the 3M 3764-6503UG. Both parts share identical position count, pitch, row configuration, and operating temperature range (-55°C ~ 105°C). The TE Connectivity part is ROHS3 compliant and carries active product status with 3039 units in stock, ensuring long-term availability for production requirements.

Secondary Recommendations: HARTING 09185646914, 09195646904, 09195646914

The HARTING SEK series connectors (09185646914, 09195646904, 09195646914) are functionally equivalent with extended operating temperature capability (-55°C ~ 125°C). All three HARTING variants are ROHS3 compliant with active product status. These parts are suitable for applications requiring higher temperature performance than the original 3M specification.

Alternative: Amphenol ICC 71918-264LF

The Amphenol ICC 71918-264LF (Quickie™ series) meets all core substitution criteria with RoHS compliance and active product status. This part is available in tube packaging with 2173 units in stock.

All substitute parts maintain the critical electrical and mechanical parameters required for direct functional replacement in board-to-cable/wire connector applications.

Frequently Asked Questions (FAQ)

Q: Can HARTING 09195105323741 be used as a substitute for the 3M 3764-6503UG?

A: No. The HARTING 09195105323741 is a right-angle 10-position connector, not a vertical 64-position connector. Position count and orientation are non-negotiable substitution parameters.

Q: What is the significance of the operating temperature difference between the 3M part (-55°C ~ 105°C) and HARTING substitutes (-55°C ~ 125°C)?

A: The HARTING parts support an extended upper temperature limit. For applications operating within the original 3M specification range, HARTING substitutes are fully compatible. Applications requiring temperatures above 105°C benefit from the extended HARTING rating.

Q: Are all listed substitutes RoHS compliant?

A: The TE Connectivity 1-5499160-2, HARTING series (09185646914, 09195646904, 09195646914), and Amphenol ICC 71918-264LF are all RoHS compliant. The original 3M 3764-6503UG is RoHS non-compliant.

Q: What packaging options are available for these substitutes?

A: TE Connectivity 1-5499160-2 is supplied in bulk packaging. HARTING parts are supplied in bulk. Amphenol ICC 71918-264LF is supplied in tube packaging. Packaging selection depends on assembly process requirements.

Q: Do all substitutes maintain the same contact finish specifications?

A: Contact finish specifications vary among substitutes. The original 3M part features gold mating contact finish with tin-lead post finish. Substitute parts use gold or tin mating finishes with tin or tin-lead post finishes. These variations are within acceptable parameters for this connector category.

Q: Is the keying slot configuration identical across all parts?

A: All listed parts include keying slot features for polarization. Mechanical keying compatibility should be verified during design integration, as keying slot geometry may vary between manufacturers.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message