3M 3314-1303 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3314-1303 is a through-hole, right-angle rectangular connector header with 14 positions at 2.54mm pitch. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The connector features shrouded design with latch lock/eject hooks and is suitable for board-to-cable/wire interconnections in industrial and commercial electronics.

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, Right Angle
Shrouding	Shrouded
Operating Temperature	-55°C ~ 105°C
Current Rating	1.75A
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility for the 3314-1303 is determined by the following critical parameters:

Connector type, contact type, and gender (Header, Male Pin)
Position count and row configuration (14 positions, 2 rows)
Mating pitch and row spacing (0.100" / 2.54mm)
Mounting style (Through Hole, Right Angle)
Electrical ratings (1.75A current, -55°C ~ 105°C operating range)
Shrouding configuration (Shrouded design)
Termination method (Solder)
Flammability compliance (UL94 V-0)

The substitute parts D3314-5002-AR and N3314-5002RB meet these core electrical and mechanical requirements. Variations in fastening type, contact finish thickness, insulation height, and shrouding wall count do not prevent functional substitution within the specified parameter envelope.

Parameter Comparison

Parameter	3314-1303	D3314-5002-AR	N3314-5002RB
Manufacturer	3M	3M	3M
Product Status	Obsolete	Active	Active
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	14	14	14
Number of Rows	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 3 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Contact Length - Post	0.155" (3.94mm)	0.112" (2.84mm)	0.112" (2.84mm)
Insulation Height	0.310" (7.87mm)	0.340" (8.64mm)	0.340" (8.64mm)
Contact Shape	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold
Contact Finish - Post	Tin-Lead	Tin	Tin
Contact Material	Copper Alloy	Brass	Copper Alloy
Insulation Material	PCT, Polyester, Glass Filled	PCT, Polyester, Glass Filled	PCT, Polyester, Glass Filled
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating (Amps)	1.75A	1.75A	1.75A
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both D3314-5002-AR and N3314-5002RB are active product alternatives to the obsolete 3314-1303. Selection between these substitutes should be based on the following factors:

D3314-5002-AR is packaged in trays and features brass contact material with tin post finish. This part achieves RoHS compliance and is suitable for applications requiring modern environmental standards.

N3314-5002RB is supplied in bulk packaging and retains copper alloy contact material with tin post finish, matching the original contact material composition more closely. This part also achieves RoHS compliance and includes REACH unaffected status documentation.

Both substitutes feature 4-wall shrouding compared to the original 3-wall design, providing enhanced mechanical protection. Both maintain identical electrical ratings, operating temperature range, and flammability compliance. The primary differences are packaging format, contact material composition, and contact post length reduction from 0.155" to 0.112".

Frequently Asked Questions (FAQ)

Q: Can D3314-5002-AR or N3314-5002RB be used as direct replacements for 3314-1303?

A: Both parts meet the core electrical and mechanical substitution criteria: 14-position, 2-row header configuration at 2.54mm pitch, through-hole right-angle mounting, 1.75A current rating, and -55°C to 105°C operating range. The shorter contact post length (0.112" vs. 0.155") and increased insulation height (0.340" vs. 0.310") must be evaluated against PCB layout and mating connector specifications.

Q: What is the difference between D3314-5002-AR and N3314-5002RB?

A: D3314-5002-AR uses brass contact material and is supplied in tray packaging. N3314-5002RB uses copper alloy contact material and is supplied in bulk packaging. Both achieve RoHS compliance. N3314-5002RB includes REACH unaffected status. Contact material and packaging format are the primary differentiators.

Q: Does the change from 3-wall to 4-wall shrouding affect compatibility?

A: The 4-wall shrouding in both substitute parts provides enhanced mechanical protection and does not prevent functional substitution. Mating connector compatibility depends on the mating connector design specifications rather than shrouding wall count.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both D3314-5002-AR and N3314-5002RB are RoHS compliant, whereas the original 3314-1303 is RoHS non-compliant. This compliance improvement may be required for new designs or regulatory requirements.

Q: What is the impact of the shorter contact post length?

A: The substitute parts feature 0.112" contact post length compared to 0.155" on the original part. This 0.043" reduction affects solder joint geometry and PCB pad design. PCB layout must be evaluated to ensure adequate solder fillet formation and mechanical strength.

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