3M 3314-6302-UG Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3314-6302-UG is a shrouded rectangular connector header with 14 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This through-hole solder-terminated component features male pins with gold-plated mating contacts and tin-lead plated posts. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	14
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Shrouding	Shrouded - 4 Wall
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution for the 3314-6302-UG is determined by strict equivalence across the following critical parameters:

Connector type (Header)
Contact type (Male Pin)
Position count (14 positions)
Row configuration (2 rows)
Mating pitch (0.100" / 2.54mm)
Row spacing (0.100" / 2.54mm)
Mounting method (Through Hole)
Termination type (Solder)
Shrouding configuration (Shrouded - 4 Wall)
Operating temperature range (-55°C ~ 105°C minimum)
Flammability rating (UL94 V-0)

Substitute parts are grouped into two categories based on product status and compliance:

Active Status Substitutes: Parts with current manufacturing status and modern compliance certifications (RoHS3, REACH compliance where applicable).

Obsolete/Legacy Substitutes: Parts with matching electrical and mechanical specifications but discontinued or non-compliant status.

Parameter Comparison

Part Number	Manufacturer	Product Status	Positions	Pitch (mm)	Fastening Type	Contact Finish - Mating	Contact Finish - Post	Operating Temp (°C)	Current Rating (A)	RoHS Status
3314-6302-UG	3M	Obsolete	14 (2x7)	2.54	Latch Lock/Eject Hooks, Long	Gold (15.0µin)	Tin-Lead	-55 ~ 105	1	Non-compliant
3314-6002	3M	Obsolete	14 (2x7)	2.54	Push-Pull	Gold (30.0µin)	Tin-Lead	-55 ~ 105	1	Non-compliant
N3314-6002RB	3M	Active	14 (2x7)	2.54	Push-Pull	Gold (30.0µin)	Tin	-55 ~ 105	1.75	Compliant
102321-2	TE Connectivity AMP Connectors	Active	14 (2x7)	2.54	Latch Lock/Eject Hooks, Long	Gold or Gold-Palladium (30.0µin)	Tin-Lead	-65 ~ 105	1	Not applicable
2-5102321-2	TE Connectivity AMP Connectors	Active	14 (2x7)	2.54	Latch Lock/Eject Hooks, Long	Gold or Gold-Palladium (30.0µin)	Tin	-65 ~ 105	1	ROHS3 Compliant
2-5499206-2	TE Connectivity AMP Connectors	Active	14 (2x7)	2.54	Latch Lock/Eject Hooks, Long	Gold or Gold-Palladium (30.0µin)	Tin	-65 ~ 105	1	ROHS3 Compliant
301-LS-141	On Shore Technology Inc.	Active	14 (2x7)	2.54	Latch Lock/Eject Hooks, Long	Gold (Flash)	Not specified	-55 ~ 120	2	ROHS3 Compliant
499206-2	TE Connectivity AMP Connectors	Active	14 (2x7)	2.54	Latch Lock/Eject Hooks, Long	Gold or Gold-Palladium (30.0µin)	Tin-Lead	-65 ~ 105	1	Not applicable
499922-2	TE Connectivity AMP Connectors	Active	14 (2x7)	2.54	Latch Lock/Eject Hooks, Long	Gold or Gold-Palladium (15.0µin)	Tin-Lead	-65 ~ 105	1	Not applicable
5102321-2	TE Connectivity AMP Connectors	Active	14 (2x7)	2.54	Latch Lock/Eject Hooks, Long	Gold or Gold-Palladium (30.0µin)	Tin	-65 ~ 105	1	RoHS Compliant
53611-S14-4LF	Amphenol ICC (FCI)	Active	14 (2x7)	2.54	Latch Lock/Eject Hooks	Gold or Gold, GXT™ (15.0µin)	Tin	Not specified	Not specified	RoHS Compliant

Engineering Selection Recommendations

Primary Recommendation for Active Production:

N3314-6002RB (3M) is the preferred direct replacement. It maintains 3M manufacturing continuity, achieves RoHS compliance, and provides enhanced current rating (1.75A vs. 1A). The push-pull fastening mechanism differs from the original latch-lock design but maintains electrical and mechanical compatibility within the 2.54mm pitch standard.

Alternative Active Substitutes:

2-5102321-2 and 5102321-2 (TE Connectivity AMP Connectors) provide ROHS3/RoHS compliance with active product status. These parts maintain the latch-lock fastening mechanism matching the original design. Operating temperature range extends to -65°C, providing broader environmental coverage.

2-5499206-2 (TE Connectivity AMP Connectors) offers ROHS3 compliance with identical electrical specifications and latch-lock fastening. The blue insulation color distinguishes this variant from standard black configurations.

301-LS-141 (On Shore Technology Inc.) provides ROHS3 compliance and the highest current rating (2A). Operating temperature extends to 120°C. This part is suitable for applications requiring enhanced thermal performance.

Legacy Compatibility:

3314-6002 and 102321-2 maintain full electrical and mechanical compatibility with the original 3314-6302-UG but lack modern compliance certifications. These are suitable only for legacy system maintenance where compliance requirements do not apply.

Frequently Asked Questions (FAQ)

Q: Can N3314-6002RB replace 3314-6302-UG directly in existing designs?

A: Yes. Both parts share identical pitch (2.54mm), position count (14), row configuration (2x7), shrouding (4-wall), and operating temperature range (-55°C to 105°C). The fastening mechanism differs (push-pull vs. latch-lock), but this does not affect electrical performance or mating compatibility with standard 2.54mm pitch connectors.

Q: What is the difference between latch-lock and push-pull fastening?

A: Latch-lock fastening uses mechanical hooks for secure mating and requires deliberate unlatching for disconnection. Push-pull fastening allows quick connect/disconnect without latching mechanisms. Both provide equivalent electrical contact and mechanical retention in standard applications.

Q: Are TE Connectivity AMP Connectors (102321-2, 5102321-2) compatible with 3M 3314-6302-UG?

A: Yes. These parts meet all critical substitution parameters: 14 positions, 2.54mm pitch, 2-row configuration, through-hole mounting, solder termination, and 4-wall shrouding. Operating temperature range extends to -65°C, providing broader environmental coverage than the original part.

Q: What is the significance of RoHS compliance in selecting a substitute?

A: RoHS compliance indicates the part meets Restriction of Hazardous Substances regulations, eliminating lead and other restricted materials. For new designs and production in regulated markets, RoHS-compliant substitutes (N3314-6002RB, 2-5102321-2, 2-5499206-2, 301-LS-141, 5102321-2, 53611-S14-4LF) are required. Legacy systems may use non-compliant parts where regulations do not apply.

Q: Does contact finish thickness affect substitution compatibility?

A: Contact finish thickness (measured in microinches) does not affect electrical or mechanical compatibility. Variations in gold plating thickness (15.0µin to 30.0µin) and post finish (tin vs. tin-lead) do not impact mating performance or current-carrying capacity within the specified 1A rating.

Q: Can 301-LS-141 be used in applications requiring the original 1A current rating?

A: Yes. The 301-LS-141 is rated for 2A, which exceeds the original 1A requirement. This part is suitable for any application designed for the 3314-6302-UG and provides additional current capacity margin.

Q: What packaging options are available for these substitutes?

A: Substitute parts are available in bulk and tray packaging. Bulk packaging is suitable for high-volume manufacturing, while tray packaging provides organized component handling for assembly operations. Packaging selection does not affect electrical or mechanical performance.

Q: Are there operating temperature considerations when selecting a substitute?

A: The original 3314-6302-UG operates from -55°C to 105°C. Substitutes maintain this range or extend it (TE Connectivity parts to -65°C, On Shore 301-LS-141 to 120°C). For applications within the original temperature range, all listed substitutes are suitable. For extended temperature requirements, 301-LS-141 provides the broadest coverage.

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