TE Connectivity 1-103311-0 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-103311-0 is a shrouded rectangular connector header designed for through-hole, right-angle mounting applications. This 50-position, 2-row header with 0.100" (2.54mm) pitch serves board-to-cable/wire interconnection requirements in industrial and commercial electronics. The connector features male pins with gold-plated mating contacts and tin-lead plated posts, operating across a temperature range of -65°C to 105°C.

The part maintains active product status with 847 units in current inventory. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, support legacy system maintenance, and enable selection based on specific compliance requirements or packaging preferences.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	50
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 - 4 Wall
Termination	Solder
Style	Board to Cable/Wire
Contact Shape	Square
Operating Temperature Range	-65°C ~ 105°C
Material Flammability Rating	UL94 V-0
Current Rating	1A per Contact
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 1-103311-0 is determined by strict alignment with the following core parameters:

Critical Matching Parameters:

Number of Positions: 50
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header
Contact Type: Male Pin
Mounting Type: Through Hole, Right Angle
Shrouding: Shrouded - 4 Wall
Termination: Solder
Contact Shape: Square
Material Flammability Rating: UL94 V-0

Acceptable Variation Parameters:

Operating Temperature Range: Substitute parts may extend the upper or lower temperature limits
Current Rating: Substitute parts may provide equal or higher current capacity
Contact Finish specifications: Variations in finish type and thickness are acceptable if mating surface remains gold-plated
Contact Material: Brass, Copper Alloy, or Phosphor Bronze are functionally equivalent
Insulation Material: PBT, PCT, or Polyester variants are acceptable
Packaging: Bulk or Tray configurations are interchangeable
Product Status: Active or Obsolete parts are both valid substitutes if electrical parameters align

All identified substitute parts meet these criteria and maintain functional compatibility with the original TE Connectivity 1-103311-0 connector header.

Parameter Comparison

Parameter	TE Connectivity 1-103311-0	HARTING 09185506323	3M 2550-5002UB	3M 30350-5002HB	3M D2550-5002-AR	3M N2550-5003-RB	Samtec TST-125-04-L-D-RA
Manufacturer	TE Connectivity	HARTING	3M	3M	3M	3M	Samtec Inc.
Series	AMP-Latch	SEK	2500	303	D2500	2500	Flex Stack, TST
Number of Positions	50	50	50	50	50	50	50
Number of Rows	2	2	2	2	2	2	2
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)	0.100" (2.54mm)
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)	0.100" (2.54mm)
Connector Type	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	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	Solder
Contact Shape	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold or Gold-Palladium	Gold	Gold	Gold	Gold	Gold	Gold
Contact Material	Brass	Copper Alloy	Copper Alloy	Brass	Brass	Copper Alloy	Phosphor Bronze
Operating Temperature Range	-65°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating (Amps)	1A per Contact	Not specified	1.75A	1A	1.75A	1.75A	3.4A per Contact
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Bulk	Bulk	Bulk	Bulk	Tray	Bulk	Tube
Product Status	Active	Active	Obsolete	Active	Active	Active	Active
RoHS Status	Not applicable	ROHS3 Compliant	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Selection - Active Status with Full Compliance:

The 3M D2550-5002-AR and 3M N2550-5003-RB represent optimal substitutes for new designs requiring active product status and RoHS3 compliance. Both parts maintain all critical electrical and mechanical parameters while offering enhanced current ratings (1.75A) compared to the original specification. The D2550-5002-AR is packaged in Tray format, suitable for automated assembly environments, while the N2550-5003-RB is available in Bulk packaging.

Extended Temperature Range Alternative:

The HARTING 09185506323 and Samtec TST-125-04-L-D-RA both extend the upper operating temperature limit to 125°C, providing enhanced thermal performance for applications requiring operation beyond the standard 105°C specification. The Samtec TST-125-04-L-D-RA additionally provides the highest current rating at 3.4A per contact, suitable for high-current applications. Both parts maintain ROHS3 compliance and active product status.

Legacy System Compatibility:

The 3M 2550-5002UB maintains obsolete product status but provides functional equivalence for legacy system repairs and maintenance. This part is available in bulk quantities (1104 units in stock) and supports applications where design continuity with existing assemblies is required. Note that this part is RoHS non-compliant and should not be used in new designs subject to RoHS regulations.

Standard Operating Range Selection:

The 3M 30350-5002HB offers active product status with RoHS compliance and the highest inventory availability (3172 units). This part is suitable for standard applications operating within the -55°C to 105°C range and provides a cost-effective alternative with proven reliability in the 303 series connector family.

Frequently Asked Questions (FAQ)

Q: Can the HARTING 09185506323 be used as a direct replacement for the TE Connectivity 1-103311-0?

A: Yes. Both connectors share identical critical parameters: 50 positions, 2 rows, 0.100" (2.54mm) pitch, through-hole right-angle mounting, shrouded 4-wall configuration, and square male pin contacts with gold-plated mating surfaces. The HARTING part extends the operating temperature range to 125°C and maintains UL94 V-0 flammability rating. Mechanical and electrical compatibility is confirmed.

Q: What is the difference between the 3M D2550-5002-AR and 3M N2550-5003-RB?

A: Both parts are functionally equivalent with identical connector specifications. The primary differences are packaging format (D2550-5002-AR ships in Tray; N2550-5003-RB ships in Bulk) and contact post length (D2550-5002-AR: 0.112"; N2550-5003-RB: 0.155"). The longer post length of the N2550-5003-RB accommodates thicker PCB assemblies. Both provide 1.75A current rating and RoHS compliance.

Q: Is the 3M 2550-5002UB suitable for new product designs?

A: No. The 2550-5002UB carries obsolete product status and is RoHS non-compliant. This part is appropriate only for maintenance and repair of existing legacy systems. For new designs, select from active-status alternatives such as the D2550-5002-AR, N2550-5003-RB, 30350-5002HB, or Samtec TST-125-04-L-D-RA.

Q: Which substitute part offers the highest current capacity?

A: The Samtec TST-125-04-L-D-RA provides the highest current rating at 3.4A per contact, compared to 1A for the original TE Connectivity part and 1.75A for most 3M alternatives. This part is suitable for high-current applications and maintains active status with ROHS3 compliance.

Q: Are there packaging format options available?

A: Yes. The TE Connectivity 1-103311-0 is supplied in Bulk packaging. Substitute parts are available in multiple formats: Bulk (HARTING 09185506323, 3M 2550-5002UB, 3M 30350-5002HB, 3M N2550-5003-RB), Tray (3M D2550-5002-AR), and Tube (Samtec TST-125-04-L-D-RA). Selection depends on assembly process requirements and inventory management preferences.

Q: What is the significance of the extended temperature range in the HARTING and Samtec parts?

A: The HARTING 09185506323 and Samtec TST-125-04-L-D-RA both support operation to 125°C, compared to 105°C for the original part. This extended upper temperature limit accommodates applications in high-temperature environments such as automotive engine compartments, industrial furnace controls, and aerospace systems. The lower temperature limit remains at -55°C for both alternatives.

Q: Do all substitute parts maintain the same shrouding and keying configuration?

A: Yes. All identified substitute parts feature shrouded 4-wall configuration with keying slots, ensuring mechanical compatibility with mating connectors designed for the TE Connectivity 1-103311-0. The keying slot prevents incorrect mating orientation.

Q: What compliance certifications should I verify for my application?

A: Verify RoHS compliance status based on your market requirements. The TE Connectivity 1-103311-0 is not applicable for RoHS. Active alternatives with ROHS3 compliance include D2550-5002-AR, N2550-5003-RB, 30350-5002HB, HARTING 09185506323, and Samtec TST-125-04-L-D-RA. All parts maintain UL94 V-0 flammability rating and MSL 1 (Unlimited) moisture sensitivity classification.

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