TE Connectivity AMP Connectors 499923-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 499923-8 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 34 positions arranged in 2 rows at 0.100" (2.54mm) pitch spacing. The part is classified as Active product status and is currently in stock with 616 pieces available. Alternative equivalent parts are necessary to support supply chain flexibility, design revisions, and procurement optimization for applications requiring identical or compatible connector specifications.

Substiute Parts

499923-8

TE Connectivity AMP ConnectorsIn Stock: 681499923-8 Datasheet

Current PartRFQ

5499923-8

TE Connectivity AMP ConnectorsIn Stock: 17605499923-8 Datasheet

DirectRFQ

N3431-6303RB

3MIn Stock: 4854N3431-6303RB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 499923-8 are classified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Parameters for Substitution:

• Number of Positions: 34
• 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
• Shrouding: Shrouded - 4 Wall
• Termination: Solder

Substitute Classification:

Direct Equivalent: Part number 5499923-8 (TE Connectivity AMP Connectors) matches all critical electrical and mechanical parameters with identical specifications. This part represents a direct functional equivalent with enhanced RoHS compliance status.

Compatible Substitute: Part number N3431-6303RB (3M) meets all critical position, pitch, and mounting specifications. This part operates within compatible electrical parameters with variations in contact finish thickness and current rating capacity.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (5499923-8):

The TE Connectivity 5499923-8 serves as a direct functional equivalent to the 499923-8. Both parts maintain identical electrical and mechanical specifications across all critical parameters. The 5499923-8 offers enhanced regulatory compliance with RoHS Compliant status and REACH Unaffected classification, compared to the non-compliant status of the original part. The contact finish on the post differs from Tin-Lead to Tin, which remains within acceptable solder compatibility standards. This part is recommended for applications where regulatory compliance and supply availability are priorities, with 1694 pieces currently in stock.

For Compatible Substitution (N3431-6303RB):

The 3M N3431-6303RB connector maintains all critical position, pitch, and mounting specifications required for mechanical and electrical compatibility. This part operates at a higher current rating of 1.75A per contact compared to 1A for the original part, providing additional capacity margin. The operating temperature range extends to -55°C minimum, which is 10°C higher than the original specification. The contact finish thickness on the post is increased to 200.0µin (5.08µm) versus 100.0µin (2.54µm) on the original part. This part holds ROHS3 Compliant and REACH Unaffected status. The N3431-6303RB is suitable for applications requiring enhanced current capacity and regulatory compliance, with 4781 pieces available in inventory.

Compliance Considerations:

Applications subject to RoHS or REACH regulations should utilize either the 5499923-8 or N3431-6303RB. The original 499923-8 is classified as RoHS non-compliant and REACH Affected, restricting its use in regulated environments.

Frequently Asked Questions (FAQ)

Q: Can the 5499923-8 be used as a direct replacement for the 499923-8?

A: Yes. The 5499923-8 maintains identical electrical and mechanical specifications across all critical parameters including position count, pitch spacing, mounting type, and current/voltage ratings. The primary difference is enhanced RoHS compliance status and a change in post contact finish from Tin-Lead to Tin, which remains compatible with standard solder processes.

Q: What are the key differences between the N3431-6303RB and the original 499923-8?

A: The N3431-6303RB maintains identical position count, pitch spacing, and mounting specifications. Key differences include: higher current rating (1.75A versus 1A per contact), higher contact finish thickness on the post (200.0µin versus 100.0µin), increased insulation height (0.680" versus 0.549"), and a minimum operating temperature of -55°C versus -65°C. The N3431-6303RB is manufactured by 3M rather than TE Connectivity and belongs to the 3000 series rather than AMP-Latch series.

Q: Is the N3431-6303RB compatible with existing PCB designs for the 499923-8?

A: The N3431-6303RB is mechanically compatible with existing PCB designs due to identical pitch spacing (0.100"), position count (34), row configuration (2 rows), and contact dimensions. However, the increased insulation height (0.680" versus 0.549") may affect clearance in space-constrained applications. Physical verification is necessary for applications with tight vertical clearance requirements.

Q: Which substitute part should be selected for RoHS-regulated applications?

A: Both the 5499923-8 and N3431-6303RB are suitable for RoHS-regulated applications. The 5499923-8 is RoHS Compliant, while the N3431-6303RB is ROHS3 Compliant. Both parts are REACH Unaffected. The original 499923-8 is RoHS non-compliant and REACH Affected, making it unsuitable for regulated environments.

Q: What is the difference in contact finish between the substitute parts?

A: The 499923-8 features Tin-Lead post finish at 100.0µin (2.54µm) thickness. The 5499923-8 uses Tin post finish at 100.0µin (2.54µm) thickness. The N3431-6303RB uses Tin post finish at 200.0µin (5.08µm) thickness, providing increased durability. All three parts feature Gold or Gold-Palladium mating contact finish, with the N3431-6303RB specifying Gold at 30.0µin (0.76µm) thickness.

Q: Are there voltage rating differences between the substitute parts?

A: The 499923-8 and 5499923-8 both specify 250VAC voltage rating. The N3431-6303RB does not specify a voltage rating in the provided documentation. For applications requiring confirmed voltage specifications, the TE Connectivity parts (499923-8 or 5499923-8) provide explicit 250VAC rating.

Q: What inventory levels are available for each part?

A: The 499923-8 has 616 pieces in stock. The 5499923-8 has 1694 pieces available. The N3431-6303RB has 4781 pieces in inventory. The N3431-6303RB offers the highest availability for immediate procurement needs.

Q: Can the higher current rating of the N3431-6303RB (1.75A) be used in applications designed for 1A per contact?

A: Yes. The N3431-6303RB with 1.75A per contact rating is suitable for applications designed for 1A per contact, as it provides additional current capacity margin. The higher rating does not create compatibility issues for lower-current applications.