TE Connectivity 1-794657-2 Rectangular Connector Housing Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-794657-2 is a 12-position rectangular connector receptacle housing with 0.165" (4.20mm) pitch, designed for free-hanging in-line mounting applications. This component belongs to the AMP-DUAC series and features crimp contact termination with latch lock fastening. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and new design implementations.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	12
Pitch	0.165" (4.20mm)
Number of Rows	2
Row Spacing	0.165" (4.20mm)
Mounting Type	Free Hanging (In-Line)
Contact Termination	Crimp
Fastening Type	Latch Lock
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 1-794657-2 is determined by strict parametric equivalence across the following critical dimensions:

Mandatory Matching Parameters:

Connector type (Receptacle)
Contact type (Female Socket)
Number of positions (12)
Pitch specification (0.165" / 4.20mm)
Number of rows (2)
Row spacing (0.165" / 4.20mm)
Mounting type (Free Hanging In-Line)
Contact termination method (Crimp)
Fastening type (Latch Lock)
Moisture sensitivity level (MSL 1)

Substitute parts are grouped into two categories: Active Series Equivalents from TE Connectivity VAL-U-LOK series (1-1586019-2, 1-1586765-2, 1-1969603-2) and Cross-Manufacturer Equivalent from Molex Mini-Fit Jr 5557 series (0039012120). All listed substitutes maintain complete parametric alignment with the main part across all mandatory matching parameters. Color variations (Natural, White, Blue) represent cosmetic differences only and do not affect functional compatibility.

Parameter Comparison

Parameter	1-794657-2 (Main)	1-1586019-2	1-1586765-2	1-1969603-2	1-2029097-2	0039012120
Manufacturer	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	Molex
Series	AMP-DUAC	VAL-U-LOK	VAL-U-LOK	VAL-U-LOK	VAL-U-LOK	Mini-Fit Jr 5557
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket
Number of Positions	12	12	12	12	12	12
Pitch	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)
Number of Rows	2	2	2	2	2	2
Row Spacing	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Termination	Crimp	Crimp	Crimp	Crimp	Crimp	Crimp
Fastening Type	Latch Lock	Latch Lock	Latch Lock	Latch Lock	Latch Lock	Latch Lock
Color	Natural	Natural	White	Natural	Blue	Natural
Insulation Material	Not Specified	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Polyamide (PA66), Nylon 6/6
Operating Temperature	Not Specified	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Product Status	Obsolete	Active	Active	Active	Obsolete	Active
RoHS Status	Not Specified	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (TE Connectivity VAL-U-LOK Series):

The TE Connectivity VAL-U-LOK series parts (1-1586019-2, 1-1969603-2, 1-1586765-2) are direct functional equivalents to the obsolete 1-794657-2. These parts maintain identical electrical and mechanical specifications while offering active product status and enhanced compliance certifications. Parts 1-1586019-2 and 1-1969603-2 are available in natural color matching the original specification. Part 1-1969603-2 provides ROHS3 compliance and represents the highest compliance level among TE Connectivity alternatives. Part 1-1586765-2 offers white color variant with ROHS3 and REACH Unaffected status for applications requiring specific color coding.

Secondary Substitute (Molex Mini-Fit Jr 5557 Series):

The Molex 0039012120 provides cross-manufacturer equivalence with identical parametric specifications. This part is active, ROHS3 compliant, and REACH Unaffected. Selection of this cross-manufacturer alternative is appropriate when supply chain diversification or existing Molex connector ecosystem integration is required.

Obsolete Alternative (TE Connectivity VAL-U-LOK Blue):

Part 1-2029097-2 maintains full parametric equivalence but carries obsolete product status identical to the main part. This part is not recommended for new designs or long-term supply planning.

Frequently Asked Questions (FAQ)

Q: Can the 1-794657-2 be directly replaced with any of the listed substitutes?

A: Yes. All listed active substitutes (1-1586019-2, 1-1969603-2, 1-1586765-2, 0039012120) maintain complete parametric equivalence across connector type, contact configuration, position count, pitch, row spacing, mounting type, termination method, and fastening mechanism. Direct mechanical and electrical interchangeability is established.

Q: What is the difference between the TE Connectivity VAL-U-LOK substitutes?

A: The three TE Connectivity VAL-U-LOK alternatives differ only in color specification and compliance certifications. Part 1-1586019-2 (natural) and 1-1969603-2 (natural) are functionally identical with 1-1969603-2 offering ROHS3 compliance. Part 1-1586765-2 provides white color variant with ROHS3 and REACH Unaffected certifications. All three are active products with equivalent electrical performance.

Q: Is the Molex 0039012120 compatible with TE Connectivity connector systems?

A: The Molex 0039012120 is parametrically equivalent to the 1-794657-2 across all critical mechanical and electrical dimensions. However, it represents a cross-manufacturer solution. Compatibility depends on mating connector specifications in the complete assembly. Verify that mating plugs are compatible with Molex Mini-Fit Jr 5557 series receptacles.

Q: Why is the 1-2029097-2 listed if it is obsolete?

A: The 1-2029097-2 is included for reference purposes only, as it appears in the original substitute list for the main part. This part maintains full parametric equivalence but carries obsolete status. It is not recommended for new designs or applications requiring long-term supply assurance.

Q: What packaging options are available for these substitutes?

A: The TE Connectivity VAL-U-LOK series (1-1586019-2, 1-1969603-2, 1-1586765-2) and Molex 0039012120 are supplied in bulk packaging. The original 1-794657-2 and 1-2029097-2 do not specify packaging type.

Q: Are there any temperature or environmental limitations for these substitutes?

A: All active substitutes operate across the -40°C to 105°C temperature range. All parts maintain MSL 1 (Unlimited) moisture sensitivity classification, indicating no special moisture control requirements during storage or handling.

Q: Do these connector housings include contacts?

A: No. All listed parts are housings only. Contacts are not included and must be sourced separately according to application requirements.

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