TE Connectivity AMP Connectors 796640-4 Terminal Block Plug Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 796640-4 is a 4-position terminal block plug with female sockets, designed for 0.197" (5.00mm) pitch applications with 180° free-hanging in-line mounting. This component is part of the Buchanan series and is classified as an active product. The terminal block plug utilizes screw-rising cage clamp termination and accommodates wire gauges from 12-30 AWG (0.05-3mm²). Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when supply chain considerations require component alternatives that maintain functional and electrical compatibility.

Key Parameters

Parameter	Value
Number of Positions	4
Pitch	0.197" (5.00mm)
Type	Plug, Female Sockets
Termination Style	Screw - Rising Cage Clamp
Mounting Type	Free Hanging (In-Line)
Plug Wire Entry	180°
Wire Gauge Range - AWG	12-30 AWG
Current Rating - UL	15 A
Voltage Rating - UL	300 V
Screw Size	M3
Housing Material	Polyamide (PA66), Nylon 6/6
Flammability Rating	UL94 V-0
Operating Temperature Range	-40°C ~ 110°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 796640-4 with the Phoenix Contact 1779851 is based on alignment of the following critical parameters:

Electrical Compatibility:

Both parts maintain 4-position configuration with 0.197" (5.00mm) pitch spacing
Both support 15 A current rating under UL standards
Both support 300 V voltage rating under UL standards
Both utilize screw-rising cage clamp termination methodology

Mechanical Compatibility:

Both feature female socket plug type with 180° wire entry orientation
Both are configured for free-hanging in-line mounting
Both use M3 screw size for termination
Both accommodate 12-30 AWG wire gauge range

Material and Environmental Compliance:

Both feature polyamide/nylon housing materials
Both meet UL94 V-0 flammability rating
Both are ROHS3 compliant
Both have MSL rating of 1 (Unlimited)

Functional Equivalence: The Phoenix Contact 1779851 operates within the specified electrical and mechanical parameters of the TE Connectivity 796640-4, enabling direct substitution in applications where the primary part is unavailable.

Parameter Comparison

Parameter	TE Connectivity 796640-4	Phoenix Contact 1779851	Compatibility Status
Manufacturer	TE Connectivity AMP Connectors	Phoenix Contact	Different Manufacturer
Series	Buchanan	COMBICON MSTBT	Different Series
Number of Positions	4	4	Equivalent
Positions Per Level	4	4	Equivalent
Number of Levels	1	1	Equivalent
Pitch	0.197" (5.00mm)	0.197" (5.00mm)	Equivalent
Type	Plug, Female Sockets	Plug, Female Sockets	Equivalent
Plug Wire Entry	180°	180°	Equivalent
Termination Style	Screw - Rising Cage Clamp	Screw - Rising Cage Clamp	Equivalent
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Equivalent
Current - UL	15 A	15 A	Equivalent
Voltage - UL	300 V	300 V	Equivalent
Wire Gauge - AWG	12-30 AWG	12-30 AWG	Equivalent
Wire Gauge - mm²	0.05-3mm²	0.2-2.5mm²	Partial Overlap (0.2-2.5mm²)
Color	Green	Green	Equivalent
Contact Mating Finish	Tin	Tin	Equivalent
Screw Size	M3	M3	Equivalent
Housing Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA), Nylon	Equivalent Material Class
Flammability Rating	UL94 V-0	UL94 V-0	Equivalent
Insulation Height	0.610" (15.49mm)	0.591" (15.00mm)	Minimal Variance (0.49mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Active	Active	Both Active

Engineering Selection Recommendations

Primary Part Selection: The TE Connectivity 796640-4 remains the primary component specification. This part is active in production, ROHS3 compliant, and carries REACH Affected status with full regulatory documentation.

Substitute Part Selection: The Phoenix Contact 1779851 serves as a functional equivalent for applications requiring alternative sourcing. Both parts are active products with equivalent electrical ratings (15 A at 300 V UL), identical pitch spacing (5.00mm), and compatible termination methodology (screw-rising cage clamp).

Compliance Considerations: Both parts meet UL94 V-0 flammability requirements and ROHS3 compliance standards. The TE Connectivity 796640-4 carries REACH Affected designation, while the Phoenix Contact 1779851 is REACH Unaffected. Selection between these parts should account for supply chain requirements and regulatory documentation needs specific to the application region.

Wire Gauge Compatibility: The TE Connectivity 796640-4 accommodates wire gauges from 0.05-3mm², while the Phoenix Contact 1779851 accommodates 0.2-2.5mm². Applications utilizing wire gauges below 0.2mm² or above 2.5mm² require the TE Connectivity part. Applications within the 0.2-2.5mm² range support either part.

Mechanical Fit: Insulation height variance between parts is minimal (0.49mm difference). Both parts feature identical M3 screw sizing and free-hanging in-line mounting configuration, supporting direct mechanical substitution in standard PCB and panel mounting applications.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1779851 directly replace the TE Connectivity 796640-4 in all applications?

A: The Phoenix Contact 1779851 provides functional equivalence for applications utilizing wire gauges within the 0.2-2.5mm² range. Applications requiring wire gauges below 0.2mm² or above 2.5mm² must use the TE Connectivity 796640-4. Both parts maintain identical electrical ratings, pitch spacing, and termination methodology.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: 4-position configuration, 0.197" (5.00mm) pitch spacing, 15 A current rating (UL), 300 V voltage rating (UL), screw-rising cage clamp termination, 180° wire entry orientation, and 12-30 AWG wire gauge accommodation. Both parts meet these specifications.

Q: Are there differences in screw torque specifications between these parts?

A: Yes. The TE Connectivity 796640-4 specifies 0.79 Nm (7.0 Lb-In) screw torque, while the Phoenix Contact 1779851 specifies 0.5-0.6 Nm (4.4-5.3 Lb-In). Termination procedures must follow the specific torque requirements of the selected part.

Q: What is the significance of the insulation height difference?

A: The insulation height variance is 0.49mm (TE Connectivity 796640-4 at 15.49mm versus Phoenix Contact 1779851 at 15.00mm). This minimal difference does not affect standard PCB mounting or panel integration in typical applications. Verify clearance in space-constrained designs.

Q: How do the wire strip length specifications differ?

A: The TE Connectivity 796640-4 specifies 6-7.5mm wire strip length, while the Phoenix Contact 1779851 specifies 7mm. Both values fall within acceptable termination ranges for 12-30 AWG wire gauges. Follow the specific preparation requirements of the selected part during installation.

Q: What regulatory compliance differences exist between these parts?

A: Both parts are ROHS3 compliant and carry MSL rating of 1 (Unlimited). The TE Connectivity 796640-4 is REACH Affected, while the Phoenix Contact 1779851 is REACH Unaffected. Applications subject to REACH regulations may require the TE Connectivity part or specific documentation from the Phoenix Contact part.

Q: Are both parts available in the same packaging format?

A: Both parts are supplied in bulk packaging. The TE Connectivity 796640-4 has 785 pieces in stock, while the Phoenix Contact 1779851 has 3336 pieces in stock. Packaging quantity and delivery timelines should be evaluated based on project requirements.

Q: Can these parts be used interchangeably in existing designs without modification?

A: Yes, for applications within the compatible wire gauge range (0.2-2.5mm²). Mechanical fit is equivalent due to identical pitch spacing, M3 screw sizing, and mounting configuration. Termination procedures must follow the specific torque and wire preparation requirements of the selected part.

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