TE Connectivity AMP Connectors 1776131-4 Terminal Block Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1776131-4 is a 4-position terminal block header with male pins, shrouded on all four sides, designed for vertical through-hole mounting. This component operates at 300 V UL and 11 A UL current rating with a 0.150" (3.81mm) pitch configuration. The part is manufactured from polyamide (PA) nylon housing with phosphor bronze contacts and tin mating finish. Product status is active with RoHS compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified when alternative manufacturers offer terminal block headers with matching electrical specifications, mechanical dimensions, and mounting characteristics. Substitutes enable procurement flexibility, inventory optimization, and supply chain continuity when the primary part becomes unavailable or when design requirements permit functional alternatives.

Key Parameters

Parameter	Value
Number of Positions	4
Pitch	0.150" (3.81mm)
Header Orientation	Vertical
Type	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole
Termination Style	Solder
Voltage - UL	300 V
Current - UL	11 A
Operating Temperature Range	-40°C ~ 110°C
Material Flammability Rating	UL94 V-0
Contact Tail Length	0.134" (3.40mm)
Insulation Height	0.362" (9.20mm)
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution of terminal block headers is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

Voltage rating (UL): 300 V minimum
Current rating (UL): 8 A minimum
Contact material and mating finish consistency

Mechanical Compatibility Parameters:

Number of positions: 4
Pitch spacing: 0.150" (3.81mm)
Header orientation: Vertical
Mounting type: Through hole
Shrouding configuration: 4-side shrouded
Contact tail length: 0.134" (3.40mm)
Insulation height: 0.362" (9.20mm)

Environmental and Compliance Parameters:

Material flammability rating: UL94 V-0
RoHS compliance status
Moisture sensitivity level: MSL 1

The Phoenix Contact 1803442 qualifies as a substitute part because it meets or exceeds all critical electrical and mechanical parameters while maintaining equivalent physical dimensions and environmental compliance certifications.

Parameter Comparison

Parameter	TE Connectivity 1776131-4	Phoenix Contact 1803442	Match Status
Manufacturer	TE Connectivity AMP Connectors	Phoenix Contact	Different Manufacturer
Series	Buchanan	COMBICON MCV	Different Series
Number of Positions	4	4	Equivalent
Positions Per Level	4	4	Equivalent
Number of Levels	1	1	Equivalent
Pitch	0.150" (3.81mm)	0.150" (3.81mm)	Equivalent
Header Orientation	Vertical	Vertical	Equivalent
Type	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Equivalent
Termination Style	Solder	Solder	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Voltage - UL	300 V	300 V	Equivalent
Current - UL	11 A	8 A	Substitute Rated Lower
Current - IEC	Not Specified	8 A	Additional Data
Voltage - IEC	Not Specified	250 V	Additional Data
Contact Mating Finish	Tin	Tin	Equivalent
Material Flammability Rating	UL94 V-0	UL94 V-0	Equivalent
Contact Tail Length	0.134" (3.40mm)	0.134" (3.40mm)	Equivalent
Insulation Height	0.362" (9.20mm)	0.362" (9.20mm)	Equivalent
Housing Material	Polyamide (PA), Nylon	Polybutylene Terephthalate (PBT)	Different Material
RoHS Status	RoHS Compliant	ROHS3 Compliant	Both Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
ECCN	EAR99	EAR99	Equivalent
HTSUS	8536.69.4040	8536.69.4040	Equivalent

Engineering Selection Recommendations

Primary Part Selection: The TE Connectivity AMP Connectors 1776131-4 is the specified component with active product status, RoHS compliance, and a 11 A UL current rating. This part is suitable for applications requiring the full 11 A capacity within the 300 V UL operating envelope and -40°C to 110°C temperature range.

Substitute Part Selection: The Phoenix Contact 1803442 serves as a functional substitute when the primary part is unavailable or when procurement requirements permit alternative sourcing. This substitute maintains electrical compatibility at 8 A UL and 300 V UL, meeting the core voltage specification. The Phoenix Contact part carries ROHS3 compliance and REACH unaffected status, confirming regulatory alignment with current environmental standards.

Compatibility Considerations: Both parts feature identical mechanical dimensions (0.150" pitch, 0.134" contact tail length, 0.362" insulation height), vertical through-hole mounting, and 4-side shrouded male pin configuration. The substitute part uses polybutylene terephthalate (PBT) housing instead of polyamide (PA) nylon, which maintains UL94 V-0 flammability rating and does not affect functional interchangeability in standard terminal block applications.

Current Rating Differential: The Phoenix Contact 1803442 carries an 8 A UL current rating compared to the 11 A UL rating of the primary part. Applications operating above 8 A UL require the primary TE Connectivity part. Applications operating at or below 8 A UL current are compatible with the substitute.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1803442 be used as a direct replacement for the TE Connectivity 1776131-4?

A: The Phoenix Contact 1803442 is functionally compatible for applications operating at 8 A UL or below. Both parts share identical pitch (0.150"), mounting type (through hole vertical), shrouding configuration (4-side), and voltage rating (300 V UL). Applications requiring the full 11 A UL capacity of the primary part must use the TE Connectivity 1776131-4.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer, series designation, housing material (polyamide versus polybutylene terephthalate), and current rating (11 A versus 8 A UL). Both parts maintain equivalent electrical voltage ratings, mechanical dimensions, flammability ratings, and RoHS compliance status.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both parts have identical contact tail length (0.134"), insulation height (0.362"), pitch spacing (0.150"), and mounting footprint. They are mechanically interchangeable in through-hole PCB applications.

Q: What is the significance of the different housing materials?

A: The TE Connectivity part uses polyamide (PA) nylon housing, while the Phoenix Contact part uses polybutylene terephthalate (PBT). Both materials maintain UL94 V-0 flammability rating and are suitable for standard terminal block applications. Material selection does not affect electrical performance or mechanical compatibility.

Q: Do both parts meet current environmental compliance standards?

A: Yes. The TE Connectivity 1776131-4 is RoHS compliant. The Phoenix Contact 1803442 is ROHS3 compliant and REACH unaffected, confirming alignment with current regulatory requirements.

Q: What is the moisture sensitivity level for both parts?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly.

Q: Can these parts be used interchangeably in new designs?

A: The Phoenix Contact 1803442 can be specified in new designs for applications operating at 8 A UL or below. The TE Connectivity 1776131-4 is required for applications requiring 8 A to 11 A UL current capacity. Both parts meet identical voltage, temperature, and compliance specifications for their respective current ratings.

Q: What is the operating temperature range for both parts?

A: The TE Connectivity 1776131-4 operates from -40°C to 110°C. Operating temperature range data is not specified for the Phoenix Contact 1803442 in the provided parameters.

Q: Are there any packaging differences between these parts?

A: The TE Connectivity 1776131-4 packaging is not specified. The Phoenix Contact 1803442 is supplied in bulk packaging. Packaging format does not affect functional compatibility or electrical performance.

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