TE Connectivity AMP Connectors 794594-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 794594-4 is a 4-position rectangular connector plug housing with 0.165" (4.20mm) pitch, designed for free-hanging in-line mounting applications. This connector belongs to the AMP-DUAC series and features male pin contact termination with crimp fastening and locking ramp engagement. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and maintenance requirements.

Substiute Parts

794594-4

TE Connectivity AMP ConnectorsIn Stock: 1043794594-4 Datasheet

Current PartRFQ

1586017-4

TE Connectivity AMP ConnectorsIn Stock: 153741586017-4 Datasheet

SimilarRFQ

1969598-4

TE Connectivity AMP ConnectorsIn Stock: 67621969598-4 Datasheet

Parametric EquivalentRFQ

2029096-4

TE Connectivity AMP ConnectorsIn Stock: 7272029096-4 Datasheet

Parametric EquivalentRFQ

1727620004

MolexIn Stock: 67531727620004 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 794594-4 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Plug
• Contact Type: Male Pin
• Number of Positions: 4
• Pitch: 0.165" (4.20mm)
• Number of Rows: 2
• Row Spacing: 0.165" (4.20mm)
• Mounting Type: Free Hanging (In-Line)
• Contact Termination: Crimp
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Variable Parameters (Non-Restrictive for Substitution):

• Fastening Type (Locking Ramp, Latch Lock)
• Color (White, Natural, Blue, Black)
• Series designation (AMP-DUAC, VAL-U-LOK, Mini-Fit TPA2)
• Manufacturer (TE Connectivity, Molex)
• Insulation Material composition (Polyamide PA, PA66, Nylon variants)
• Operating Temperature range (when specified)

All identified substitute parts maintain full electrical and mechanical compatibility with the original 794594-4 through adherence to the mandatory parameters. Differences in fastening mechanism, color, and series designation do not affect functional interchangeability in applications requiring 4-position, 4.20mm pitch rectangular connector plug housings.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 1586017-4

The 1586017-4 is the preferred substitute for the obsolete 794594-4. This part maintains full parametric equivalence across all critical electrical and mechanical specifications. The 1586017-4 is classified as active product status with ROHS3 compliance and unlimited moisture sensitivity rating. The VAL-U-LOK series designation provides established design maturity. Inventory availability of 15,325 pieces ensures supply continuity. The latch lock fastening mechanism provides equivalent mechanical engagement to the original locking ramp design.

Secondary Recommendation: 1969598-4

The 1969598-4 serves as an alternative active substitute with identical pitch, position count, and mounting configuration. This part features locking ramp fastening identical to the original 794594-4, reducing potential design integration considerations. ROHS3 compliance and unlimited MSL rating align with the original specification. Inventory of 6,677 pieces supports production requirements. The PA66 nylon insulation material provides enhanced thermal and mechanical properties compared to standard polyamide.

Tertiary Recommendation: 2029096-4

The 2029096-4 is an active substitute offering full parametric compatibility with color differentiation (blue). This part maintains all critical electrical and mechanical parameters. RoHS compliance is confirmed, though REACH status is vendor-undefined. Limited inventory of 705 pieces may restrict high-volume applications. This option is suitable for applications where color coding provides functional benefit.

Cross-Manufacturer Option: 1727620004 (Molex)

The 1727620004 from Molex represents a cross-manufacturer substitute within the Mini-Fit TPA2 series. This part maintains complete parametric equivalence to the 794594-4 across all mandatory matching parameters. ROHS3 compliance and REACH unaffected status confirm regulatory alignment. Inventory of 6,702 pieces supports production needs. Selection of this cross-manufacturer option requires confirmation of mechanical compatibility with existing mating receptacle designs, as series designation differs from TE Connectivity offerings.

Frequently Asked Questions (FAQ)

Q: Can the 1586017-4 directly replace the obsolete 794594-4 in existing designs?

A: Yes. The 1586017-4 maintains full electrical and mechanical compatibility with the 794594-4. Both parts share identical pitch (0.165"/4.20mm), position count (4), row configuration (2 rows), mounting type (free hanging in-line), and contact termination (crimp). The latch lock fastening mechanism on the 1586017-4 provides equivalent engagement to the original locking ramp design.

Q: What is the difference between locking ramp and latch lock fastening types?

A: Both fastening mechanisms provide positive mechanical engagement between plug and receptacle housings. Locking ramp utilizes a ramped surface for engagement, while latch lock employs a latching mechanism. For the 794594-4 substitution, both mechanisms are functionally equivalent in maintaining connector integrity during operation.

Q: Are there operating temperature differences between substitute options?

A: The 1586017-4 and 1969598-4 specify operating temperature range of -40°C to 105°C. The 2029096-4 and 1727620004 do not provide operating temperature specifications in available documentation. For applications requiring defined temperature performance, the 1586017-4 or 1969598-4 are preferred selections.

Q: Does the color difference between substitute parts affect electrical performance?

A: No. Color variation (white, natural, blue, black) is a cosmetic and identification feature only. Electrical performance and mechanical compatibility remain identical across all color options. Color selection may be driven by application-specific identification requirements or existing design standards.

Q: Can the Molex 1727620004 be used interchangeably with TE Connectivity substitutes?

A: The 1727620004 maintains full parametric compatibility with the 794594-4 and TE Connectivity substitutes. However, the 1727620004 belongs to the Mini-Fit TPA2 series while TE Connectivity options use AMP-DUAC or VAL-U-LOK series designations. Mechanical compatibility with existing mating receptacles must be confirmed before implementation, as series-specific design features may affect fit.

Q: What is the significance of ROHS3 compliance versus RoHS compliance?

A: ROHS3 represents the current regulatory standard for restriction of hazardous substances in electrical and electronic equipment. All substitute parts except 2029096-4 carry ROHS3 certification. The 2029096-4 carries RoHS compliance, which represents an earlier standard iteration. Both certifications confirm hazardous substance restrictions; ROHS3 represents the current regulatory requirement.

Q: Are contacts included with these connector housings?

A: No. All parts in this substitution group are connector housings only. Contacts are not included and must be sourced separately. Ensure that replacement contacts are compatible with the 0.165" (4.20mm) pitch specification and crimp termination method.

Q: Which substitute offers the best inventory availability?

A: The 1586017-4 provides the highest inventory availability with 15,325 pieces in stock, followed by the 1727620004 (Molex) with 6,702 pieces and 1969598-4 with 6,677 pieces. The 2029096-4 has limited availability at 705 pieces.