3M 3314-6203 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The 3M 3314-6203 is a shrouded vertical connector header with 14 positions at 2.54mm pitch, designed for through-hole board-to-cable/wire applications. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The connector features a 2-row configuration with gold-plated mating contacts and tin-lead post finishes, operating across -55°C to 105°C.

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
Shrouding	Shrouded - 4 Wall
Fastening Type	Latch Lock/Eject Hooks, Short
Contact Finish - Mating	Gold
Contact Finish - Post	Tin-Lead
Operating Temperature	-55°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the 3M 3314-6203 is determined by the following critical parameters:

Primary Matching Criteria:

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
Shrouding: Shrouded - 4 Wall
Style: Board to Cable/Wire
Contact shape: Square
Insulation color: Black or Gray
Material flammability rating: UL94 V-0

Secondary Compatibility Parameters:

Contact finish - mating: Gold
Termination: Solder
Moisture sensitivity level: 1 (Unlimited)

Substitutes are grouped into two categories based on fastening type and contact post specifications:

Category A - Latch Lock/Eject Hooks Configuration:

N3314-6203RB (3M, Active, RoHS Compliant)
09185145902 (HARTING, Active, ROHS3 Compliant)
09185146902 (HARTING, Active, ROHS3 Compliant)

Category B - Push-Pull/Alternative Fastening Configuration:

3314-6002 (3M, Obsolete, RoHS non-compliant)
N3314-6002RB (3M, Active, RoHS Compliant)
09185145329 (HARTING, Active, ROHS3 Compliant)
09185145904 (HARTING, Active, ROHS3 Compliant)
09185146904 (HARTING, Active, ROHS3 Compliant)

Category C - Right Angle Mounting (Orientation Variant):

09185146321 (HARTING, Active, ROHS3 Compliant)
09185147321 (HARTING, Active, ROHS3 Compliant)

Parameter Comparison

Part Number	Manufacturer	Status	Positions	Rows	Pitch	Mounting	Fastening Type	Contact Post Length	Current Rating	Temp Range	RoHS
3314-6203	3M	Obsolete	14	2	2.54mm	Through Hole	Latch Lock/Eject Hooks, Short	0.155" (3.94mm)	1A	-55°C ~ 105°C	Non-compliant
N3314-6203RB	3M	Active	14	2	2.54mm	Through Hole	Latch Lock/Eject Hooks, Short	0.155" (3.94mm)	1.75A	-55°C ~ 105°C	Compliant
3314-6002	3M	Obsolete	14	2	2.54mm	Through Hole	Push-Pull	0.112" (2.84mm)	1A	-55°C ~ 105°C	Non-compliant
N3314-6002RB	3M	Active	14	2	2.54mm	Through Hole	Push-Pull	0.112" (2.84mm)	1.75A	-55°C ~ 105°C	Compliant
09185145329	HARTING	Active	14	2	2.54mm	Through Hole	Push-Pull	0.217" (5.51mm)	—	—	ROHS3 Compliant
09185145902	HARTING	Active	14	2	2.54mm	Through Hole	Latch Lock/Eject Hooks, Long	0.177" (4.50mm)	—	-55°C ~ 125°C	ROHS3 Compliant
09185145904	HARTING	Active	14	2	2.54mm	Through Hole	Latch Lock/Eject Hooks, Long	0.114" (2.90mm)	—	-55°C ~ 125°C	ROHS3 Compliant
09185146902	HARTING	Active	14	2	2.54mm	Through Hole	Latch Lock/Eject Hooks, Long	0.177" (4.50mm)	—	-55°C ~ 125°C	ROHS3 Compliant
09185146904	HARTING	Active	14	2	2.54mm	Through Hole	Latch Lock/Eject Hooks, Long	0.114" (2.90mm)	—	-55°C ~ 125°C	ROHS3 Compliant
09185146321	HARTING	Active	14	2	2.54mm	Through Hole, Right Angle	Latch Holder	0.177" (4.50mm)	—	-55°C ~ 125°C	ROHS3 Compliant
09185147321	HARTING	Active	14	2	2.54mm	Through Hole, Right Angle	Latch Holder	0.177" (4.50mm)	—	-55°C ~ 125°C	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Same Fastening Type):

N3314-6203RB is the primary direct replacement for 3M 3314-6203. Both connectors feature identical latch lock/eject hooks with short fastening configuration and matching contact post length of 0.155" (3.94mm). N3314-6203RB is active in production and RoHS compliant, addressing the obsolescence of the original part. Current rating increases from 1A to 1.75A, providing improved electrical capacity for the same footprint.

Alternative Fastening Configuration:

N3314-6002RB provides functional equivalence with push-pull fastening instead of latch lock/eject hooks. This part is active and RoHS compliant. The contact post length differs at 0.112" (2.84mm), requiring PCB layout verification. Current rating is 1.75A. This option is suitable when push-pull fastening is acceptable for the application.

Cross-Manufacturer Alternatives:

HARTING SEK series connectors (09185145902, 09185146902, 09185145904, 09185146904) provide active, ROHS3-compliant alternatives with extended operating temperature range to 125°C. These parts feature latch lock/eject hooks with long configuration and varying contact post lengths. Insulation material differs from the original (PBT vs. PCT), and current ratings are not specified in available data.

Right Angle Variants:

HARTING 09185146321 and 09185147321 are right-angle mounting alternatives for applications requiring horizontal PCB orientation. These parts are active and ROHS3 compliant with 125°C operating temperature range. Right-angle mounting requires different PCB footprint design.

Frequently Asked Questions (FAQ)

Q: Can N3314-6203RB be used as a direct drop-in replacement for 3M 3314-6203?

A: N3314-6203RB is mechanically and electrically compatible as a direct replacement. Both parts share identical pitch (2.54mm), position count (14), row configuration (2), fastening type (latch lock/eject hooks, short), and contact post length (0.155"). The primary differences are product status (active vs. obsolete), RoHS compliance, and increased current rating (1.75A vs. 1A). PCB footprint and connector housing dimensions are identical.

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

A: Latch lock/eject hooks provide positive mechanical engagement with a release mechanism requiring deliberate action to disconnect. Push-pull fastening uses a simpler engagement method with pull-to-disconnect operation. These fastening types are not interchangeable without PCB redesign, as they require different connector housing geometries and mating interface designs.

Q: Are HARTING SEK series connectors fully compatible with 3M 3000 series?

A: HARTING SEK series connectors match the critical electrical and mechanical parameters: 14 positions, 2 rows, 2.54mm pitch, through-hole mounting, shrouded 4-wall configuration, and square contact shape. However, insulation material differs (PBT vs. PCT), and contact post lengths vary. These parts are suitable for applications where the specified parameters are the primary compatibility requirement. Physical connector dimensions should be verified against PCB layout.

Q: Why does contact post length vary among substitute parts?

A: Contact post length determines the depth of solder connection into the PCB and affects the overall connector height. Variations in post length (ranging from 0.112" to 0.217") accommodate different PCB thicknesses and assembly requirements. Selection must match the intended PCB thickness and solder joint depth requirements for the application.

Q: Is RoHS compliance mandatory for selecting a substitute?

A: RoHS compliance depends on application requirements and regulatory jurisdiction. The original 3M 3314-6203 is RoHS non-compliant. Active production parts (N3314-6203RB, N3314-6002RB, HARTING SEK series) are RoHS or ROHS3 compliant. For new designs or applications subject to RoHS regulations, compliant alternatives are required. For legacy system maintenance, non-compliant parts may remain acceptable if regulatory exemptions apply.

Q: Can I use a right-angle connector (09185146321, 09185147321) in place of a vertical connector?

A: Right-angle connectors require different PCB footprint and mounting orientation. These are not drop-in replacements for vertical connectors. Right-angle variants are suitable only when the application design specifically requires horizontal connector orientation relative to the PCB surface.

Q: What is the significance of the extended temperature range in HARTING alternatives?

A: HARTING SEK series connectors operate to 125°C, compared to 105°C for the original 3M 3314-6203. Extended temperature range provides margin for applications in elevated ambient conditions or high-power environments. This specification is provided for reference; selection should be based on actual application temperature requirements.

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