TE Connectivity 102321-9 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 102321-9 is an active-status vertical rectangular connector header designed for through-hole mounting applications. This 40-position, 2-row connector with 0.100" (2.54mm) pitch serves board-to-cable/wire interconnection requirements in industrial and commercial electronics. The connector features shrouded 4-wall construction with latch lock/eject hooks for secure mating and is rated for 1A per contact at 250VAC across an operating temperature range of -65°C to 105°C.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when design specifications allow for functionally compatible alternatives from different manufacturers while maintaining electrical and mechanical performance standards.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	40
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
Termination	Solder
Style	Board to Cable/Wire
Contact Shape	Square
Current Rating	1A per Contact
Voltage Rating	250VAC
Operating Temperature	-65°C ~ 105°C
Material Flammability Rating	UL94 V-0
Insulation Color	Black

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 102321-9 is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

Number of Positions: 40
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
Termination: Solder
Shrouding: Shrouded - 4 Wall
Contact Shape: Square
Material Flammability Rating: UL94 V-0

Allowable Variations:

Manufacturer and series designation
Packaging format (Tray, Tube, Bulk)
Contact finish composition (Gold, Gold-Palladium, Tin variations)
Contact finish thickness within functional tolerance
Insulation material composition (thermoplastic variants, glass-filled options)
Insulation height within mechanical tolerance
Contact length dimensions within assembly compatibility ranges
Operating temperature range (equal to or exceeding -65°C to 105°C)
Current rating (equal to or exceeding 1A per contact)
RoHS and REACH compliance status

The substitute parts listed below maintain electrical and mechanical compatibility through these parameters while offering alternatives in packaging, material composition, and regulatory compliance status.

Parameter Comparison

Parameter	102321-9 (TE)	5102321-9 (TE)	53611-S40-6LF (Amphenol)	71918-140LF (Amphenol)	D3432-6302-AR (3M)	N3432-6302RB (3M)	N3432-6303RB (3M)
Manufacturer	TE Connectivity	TE Connectivity	Amphenol ICC (FCI)	Amphenol ICC (FCI)	3M	3M	3M
Series	AMP-Latch	AMP-Latch	Quickie™	Quickie™	D3000	3000	3000
Number of Positions	40	40	40	40	40	40	40
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	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
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 or Gold-Palladium	Gold or Gold, GXT™	Gold, GXT™	Gold	Gold	Gold
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Operating Temperature	-65°C ~ 105°C	-65°C ~ 105°C	Not specified	Not specified	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Current Rating (Amps)	1A per Contact	1A per Contact	Not specified	Not specified	1.75A	1.75A	1.75A
Voltage Rating	250VAC	250VAC	Not specified	Not specified	Not specified	Not specified	Not specified
Packaging	Tray	Tray	Tray	Tube	Tray	Tray	Bulk
RoHS Status	Not applicable	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalent - Same Manufacturer:

The TE Connectivity 5102321-9 is a direct equivalent to the 102321-9. Both parts are manufactured by TE Connectivity within the AMP-Latch series and share identical electrical and mechanical specifications. The primary distinction is that 5102321-9 carries ROHS3 Compliant status and uses Tin post finish instead of Tin-Lead, making it suitable for applications requiring RoHS3 compliance. The 5102321-9 is the preferred selection when regulatory compliance with RoHS3 is required.

Cross-Manufacturer Alternatives:

The Amphenol ICC (FCI) parts 53611-S40-6LF and 71918-140LF are functionally compatible alternatives from the Quickie™ series. Both maintain the critical 40-position, 2-row, 0.100" pitch configuration with shrouded 4-wall construction. These parts differ in packaging format (Tray versus Tube) and contact finish thickness specifications. The 53611-S40-6LF is packaged in Tray format, while 71918-140LF is supplied in Tube format. Operating temperature and current rating specifications are not provided for these parts; therefore, their use is appropriate only when the application does not require explicit verification of these parameters beyond the 0.100" pitch and 40-position configuration.

The 3M D3000 series part D3432-6302-AR and 3M 3000 series parts N3432-6302RB and N3432-6303RB are compatible alternatives with enhanced current ratings of 1.75A per contact, exceeding the 1A requirement of the primary part. The D3432-6302-AR operates across -55°C to 105°C, which covers the upper portion of the primary part's temperature range. The N3432-6302RB and N3432-6303RB differ only in packaging format (Tray versus Bulk) and contact post length specifications. All three 3M alternatives carry RoHS compliance certification and are suitable for applications requiring regulatory compliance.

Compliance Considerations:

The original 102321-9 carries "Not applicable" RoHS status. When RoHS3 compliance is mandatory, the TE Connectivity 5102321-9 is the direct substitute. When cross-manufacturer alternatives are acceptable, all Amphenol and 3M options listed provide RoHS compliance. The 102321-9 is REACH Affected; the 5102321-9 and N3432 series parts are REACH Unaffected, while Amphenol parts are REACH Affected.

Packaging Considerations:

Selection between Tray, Tube, and Bulk packaging depends on procurement and assembly workflow requirements. The 102321-9 is supplied in Tray format. The 5102321-9 maintains Tray packaging. Amphenol 53611-S40-6LF is Tray-packaged, while 71918-140LF is Tube-packaged. The 3M D3432-6302-AR and N3432-6302RB are Tray-packaged; N3432-6303RB is Bulk-packaged.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 5102321-9 be used as a direct replacement for the 102321-9?

A: Yes. The 5102321-9 is a direct equivalent with identical electrical and mechanical specifications. The primary difference is RoHS3 compliance status and Tin post finish instead of Tin-Lead. Use the 5102321-9 when RoHS3 compliance is required.

Q: What are the critical parameters that determine substitution compatibility?

A: The following parameters must match exactly: 40 positions, 2 rows, 0.100" (2.54mm) pitch, 0.100" row spacing, header connector type, male pin contacts, through-hole mounting, solder termination, shrouded 4-wall construction, and square contact shape. All listed substitute parts meet these requirements.

Q: Can Amphenol ICC (FCI) Quickie™ series connectors replace the TE Connectivity AMP-Latch connector?

A: The Amphenol 53611-S40-6LF and 71918-140LF maintain the same 40-position, 2-row, 0.100" pitch configuration and shrouded 4-wall construction. They are mechanically and electrically compatible. However, operating temperature and current rating specifications are not provided for these parts. Use these alternatives only when application requirements do not mandate explicit verification of these electrical parameters.

Q: What is the difference between the 3M D3432-6302-AR and the 3M N3432-6302RB?

A: Both parts are from different 3M series (D3000 versus 3000) but share identical 40-position, 2-row, 0.100" pitch configuration. The D3432-6302-AR has a contact post length of 0.112" (2.84mm), while the N3432-6302RB has the same post length. The N3432-6302RB carries RoHS Compliant status and REACH Unaffected designation. Both provide 1.75A current rating and operate across -55°C to 105°C.

Q: How do the N3432-6302RB and N3432-6303RB differ?

A: These parts are identical except for packaging format and contact post length. The N3432-6302RB is Tray-packaged with 0.112" (2.84mm) post length and 0.695" overall contact length. The N3432-6303RB is Bulk-packaged with 0.155" (3.94mm) post length and 0.695" overall contact length. Select based on packaging requirements and PCB assembly specifications.

Q: Are all substitute parts RoHS compliant?

A: No. The original 102321-9 has "Not applicable" RoHS status. The TE Connectivity 5102321-9 is ROHS3 Compliant. Amphenol parts (53611-S40-6LF and 71918-140LF) are RoHS Compliant. All 3M parts (D3432-6302-AR, N3432-6302RB, N3432-6303RB) are RoHS Compliant. Select based on regulatory requirements for your application.

Q: What is the difference between Tray and Tube packaging?

A: Tray packaging is used for automated assembly processes and provides organized component presentation. Tube packaging is used for manual assembly or lower-volume applications. The electrical and mechanical specifications of the connector are identical regardless of packaging format. Select packaging based on your assembly process requirements.

Q: Can I use a substitute part with a higher current rating than required?

A: Yes. The 3M alternatives provide 1.75A per contact rating, which exceeds the 1A requirement of the 102321-9. Using a higher-rated component does not compromise performance and provides additional design margin. This is appropriate for applications where the higher current rating does not introduce cost or space constraints.

Q: What should I verify before selecting a substitute part?

A: Verify the following: (1) Pitch and position count match your PCB layout; (2) Operating temperature range meets your application requirements; (3) Current rating is sufficient for your circuit; (4) Packaging format is compatible with your assembly process; (5) RoHS and REACH compliance status meets your regulatory requirements; (6) Contact finish composition is compatible with your soldering process.

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