TE Connectivity AMP Connectors 794680-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 794680-4 is a rectangular connector header designed for through-hole mounting applications. This connector is a vertical 4-position header with 3.00mm pitch spacing, part of the Micro MATE-N-LOK series. The connector features shrouded 4-wall construction with male pin contacts and solder termination, suitable for board-to-cable/wire connections in general purpose applications.

The 794680-4 carries an obsolete product status. Locating equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production and repair requirements for systems utilizing this connector specification.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	4
Number of Rows	2
Pitch - Mating	0.118" (3.00mm)
Row Spacing - Mating	0.118" (3.00mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Termination	Solder
Fastening Type	Locking Ramp
Operating Temperature Range	-40°C ~ 105°C
Voltage Rating	250V
Series	Micro MATE-N-LOK

Substitute Part Grouping Explanation

Substitution of the obsolete 794680-4 is based on strict electrical and mechanical parameter matching within the Micro MATE-N-LOK series. The following parameters determine substitution eligibility:

Critical Matching Parameters:

Connector type (Header)
Contact type (Male Pin)
Number of positions (4)
Number of rows (2)
Pitch spacing (0.118" / 3.00mm)
Row spacing (0.118" / 3.00mm)
Mounting type (Through Hole)
Shrouding configuration (Shrouded - 4 Wall)
Termination method (Solder)
Fastening type (Locking Ramp)
Operating temperature range (-40°C ~ 105°C)
Voltage rating (250V)

The substitute part 3-794680-4 maintains identical mechanical and electrical specifications to the original 794680-4, with the primary distinction being active product status and RoHS compliance certification. The contact finish differs from Tin-Lead to Tin on both mating and post surfaces, which remains within acceptable electrical performance parameters for this connector category.

Parameter Comparison

Parameter	794680-4 (Original)	3-794680-4 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	Micro MATE-N-LOK	Micro MATE-N-LOK
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	4	4
Number of Rows	2	2
Pitch - Mating	0.118" (3.00mm)	0.118" (3.00mm)
Row Spacing - Mating	0.118" (3.00mm)	0.118" (3.00mm)
Mounting Type	Through Hole	Through Hole
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder
Fastening Type	Locking Ramp	Locking Ramp
Contact Length - Post	0.125" (3.18mm)	0.125" (3.18mm)
Insulation Height	0.364" (9.25mm)	0.364" (9.25mm)
Contact Shape	Square	Square
Contact Finish Thickness - Mating	100.0µin (2.54µm)	100.0µin (2.54µm)
Contact Finish Thickness - Post	100.0µin (2.54µm)	100.0µin (2.54µm)
Contact Material	Brass	Brass
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
Voltage Rating	250V	250V
Current Rating	Varies by Wire Gauge	Varies by Wire Gauge
Applications	General Purpose	General Purpose
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
RoHS Status	Not applicable	RoHS Compliant
Contact Finish - Mating	Tin-Lead	Tin
Contact Finish - Post	Tin-Lead	Tin
Packaging	Not specified	Tray

Engineering Selection Recommendations

The substitute part 3-794680-4 is the direct equivalent for the obsolete 794680-4. Selection of the substitute part is supported by the following engineering factors:

Product Status: The 3-794680-4 maintains active product status with TE Connectivity AMP Connectors, ensuring ongoing availability and supply chain continuity compared to the obsolete 794680-4.

Compliance Certification: The 3-794680-4 carries RoHS Compliant certification, meeting current regulatory requirements for electronic component manufacturing and environmental compliance. The original 794680-4 lists RoHS status as not applicable, reflecting its obsolete classification.

Electrical and Mechanical Equivalence: Both parts maintain identical specifications across all critical parameters including connector type, contact configuration, pitch spacing, mounting method, termination type, operating temperature range, and voltage rating. These parameters ensure direct functional interchangeability in circuit board designs and cable assemblies.

Contact Finish Modification: The substitute part utilizes Tin finish on both mating and post contacts, replacing the Tin-Lead finish of the original part. This change aligns with RoHS compliance requirements and maintains electrical performance within the connector's rated specifications.

Packaging Consideration: The 3-794680-4 is supplied in Tray packaging, which differs from the original part's unspecified packaging. This packaging format is standard for active production components and does not affect electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 3-794680-4 be used as a direct replacement for the 794680-4 in existing designs?

A: Yes. The 3-794680-4 is electrically and mechanically equivalent to the 794680-4. Both connectors share identical specifications for connector type, contact configuration, pitch spacing, mounting method, termination, operating temperature range, and voltage rating. The substitute part is suitable for direct replacement in board-to-cable/wire applications.

Q: What is the difference between the contact finishes of these two parts?

A: The 794680-4 features Tin-Lead contact finish on both mating and post surfaces. The 3-794680-4 uses Tin finish on both surfaces. Both finishes provide equivalent electrical performance and contact reliability within the connector's rated specifications. The Tin finish change reflects RoHS compliance requirements in the substitute part.

Q: Why is the 794680-4 listed as obsolete?

A: The 794680-4 carries obsolete product status, indicating that TE Connectivity AMP Connectors has discontinued active production and support for this part number. The 3-794680-4 represents the current active equivalent within the Micro MATE-N-LOK series.

Q: Are there any compatibility issues with the different packaging formats?

A: No. The packaging format difference (unspecified for 794680-4 versus Tray for 3-794680-4) does not affect electrical or mechanical compatibility. Tray packaging is standard for active production components and provides appropriate protection and handling for the connector during storage and assembly operations.

Q: What parameters must match for a connector to be considered a substitute for the 794680-4?

A: Substitute connectors must match the following parameters: 4-position header configuration with 2 rows, 0.118" (3.00mm) pitch spacing, male pin contacts, through-hole mounting, shrouded 4-wall construction, solder termination, locking ramp fastening, -40°C to 105°C operating temperature range, and 250V voltage rating. The 3-794680-4 meets all these requirements.

Q: Is the 3-794680-4 RoHS compliant?

A: Yes. The 3-794680-4 is RoHS Compliant, meeting current regulatory requirements for restricted substances in electrical and electronic equipment. This compliance status is a key advantage over the obsolete 794680-4, which lists RoHS status as not applicable.

Q: Can the 794680-4 and 3-794680-4 be used interchangeably in the same circuit board design?

A: Yes. Both connectors are mechanically and electrically interchangeable. They share identical footprint requirements, contact spacing, mounting hole patterns, and electrical performance characteristics. The 3-794680-4 is the recommended choice for new designs and ongoing production due to its active status and RoHS compliance.

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