3M 3408-1303 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3408-1303 is a through-hole, right-angle rectangular connector header with 16 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-board or cable interconnections in industrial and commercial electronics.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	16
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
Termination	Solder

Substitute Part Grouping Explanation

Substitute parts for the 3408-1303 are qualified based on the following critical parameters that ensure functional and mechanical compatibility:

Connector type (Header) and contact type (Male Pin)
Position count (16) and row configuration (2 rows)
Mating pitch (0.100" / 2.54mm) and row spacing (0.100" / 2.54mm)
Mounting method (Through Hole, Right Angle)
Operating temperature range (-55°C ~ 105°C)
Current rating (1.75A)
Material flammability rating (UL94 V-0)
Termination method (Solder)

The substitute parts D3408-5002-AR and N3408-5002RB meet these core electrical and mechanical requirements. Variations in shrouding design (3-wall versus 4-wall), fastening type (latch lock versus push-pull), contact finish thickness, and contact material do not prevent functional substitution when mating interface geometry and electrical performance remain within specification.

Parameter Comparison

Parameter	3408-1303	D3408-5002-AR	N3408-5002RB
Manufacturer	3M	3M	3M
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	16	16	16
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
Termination	Solder	Solder	Solder
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Current Rating (Amps)	1.75A	1.75A	1.75A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Shrouding	Shrouded - 3 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Latch Lock/Eject Hooks, Long	Push-Pull	Push-Pull
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Both D3408-5002-AR and N3408-5002RB are active product alternatives to the obsolete 3408-1303. Selection between these substitutes should be based on the following factors:

D3408-5002-AR is supplied in tray packaging and carries RoHS Compliant status. This part is suitable for applications requiring modern environmental compliance standards.

N3408-5002RB is supplied in bulk packaging and also carries RoHS Compliant status. This part maintains compatibility with the original 3000 series designation and offers higher inventory availability.

Both substitutes provide equivalent electrical performance and mechanical interface compatibility with the original part. The transition from latch lock fastening (3408-1303) to push-pull fastening (both substitutes) represents a design improvement in connector reliability and ease of mating/unmating operations.

Frequently Asked Questions (FAQ)

Q: Can D3408-5002-AR or N3408-5002RB be used as direct replacements for 3408-1303?

A: Yes. Both parts maintain identical mating pitch (2.54mm), position count (16), row configuration (2), mounting method (through-hole right-angle), operating temperature range (-55°C to 105°C), and current rating (1.75A). The core electrical and mechanical interface specifications are equivalent.

Q: What is the difference between the 3-wall and 4-wall shrouding?

A: The 3408-1303 features 3-wall shrouding, while both substitute parts feature 4-wall shrouding. This represents an enhancement in connector shielding and mechanical robustness. The 4-wall design provides additional protection without affecting mating interface compatibility.

Q: How do the fastening types differ?

A: The 3408-1303 uses latch lock/eject hooks with long engagement. The substitutes D3408-5002-AR and N3408-5002RB use push-pull fastening. Push-pull fastening provides simplified mating and unmating operations compared to latch lock mechanisms.

Q: What is the significance of RoHS compliance?

A: The 3408-1303 is RoHS non-compliant, while both D3408-5002-AR and N3408-5002RB are RoHS Compliant. RoHS compliance indicates the parts meet restrictions on hazardous substances in electrical and electronic equipment, required for many modern applications and markets.

Q: Does packaging type affect electrical performance?

A: No. D3408-5002-AR (tray packaging) and N3408-5002RB (bulk packaging) are electrically and mechanically identical. Packaging selection is based on inventory management, handling, and supply chain requirements only.

Q: Are there any contact finish differences?

A: Yes. The 3408-1303 has tin-lead post finish (200.0µin thickness) and gold mating finish (30.0µin thickness). D3408-5002-AR has tin post finish (39.4µin thickness) and gold mating finish (10.0µin thickness). N3408-5002RB has tin post finish (200.0µin thickness) and gold mating finish (30.0µin thickness). These variations do not affect electrical performance or mating compatibility.

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