TE Connectivity 176273-6 Rectangular Connector Plug Housing Equivalent & Substitute Parts

Part Overview

The TE Connectivity 176273-6 is a 4-position rectangular connector plug housing with 0.156" (3.96mm) pitch spacing, designed for applications requiring crimp-terminated female socket contacts with latch lock fastening. This connector is part of the Universal Power series and is manufactured from polyamide (PA66) nylon 6/6 insulation material. The part is currently active in production status with RoHS compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across alternative connector housings, enabling component interchangeability in applications where specific color coding or series designation does not restrict selection.

Key Parameters

Parameter	Value
Connector Type	Plug
Contact Type	Female Socket
Number of Positions	4
Pitch	0.156" (3.96mm)
Number of Rows	2
Row Spacing	0.181" (4.60mm)
Mounting Type	Free Hanging (In-Line)
Contact Termination	Crimp
Fastening Type	Latch Lock
Insulation Material	Polyamide (PA66), Nylon 6/6
Manufacturer	TE Connectivity AMP Connectors

Substitute Part Grouping Explanation

Substitute parts for the 176273-6 are identified based on strict equivalence of core electrical and mechanical parameters. All substitute parts maintain identical specifications for connector type (plug), contact type (female socket), number of positions (4), pitch (0.156"/3.96mm), number of rows (2), row spacing (0.181"/4.60mm), mounting type (free hanging in-line), contact termination (crimp), fastening type (latch lock), and insulation material (polyamide PA66 nylon 6/6).

Substitution is permitted across the following variable parameters:

Color: Blue, Natural, or Yellow housing colors
Series Designation: Universal Power or Power Double Lock series
Operating Temperature Range: When specified (-30°C ~ 105°C)
RoHS Status: RoHS Compliant or ROHS3 Compliant
HTSUS Classification: Variations permitted based on series

All substitute parts are manufactured by TE Connectivity AMP Connectors, maintain active product status, and carry RoHS compliance with MSL 1 rating. Contacts are not included with any housing variant.

Parameter Comparison

Parameter	176273-6 (Main)	176273-1	177900-4	177900-6
Manufacturer Part Number	176273-6	176273-1	177900-4	177900-6
Connector Type	Plug	Plug	Plug	Plug
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket
Number of Positions	4	4	4	4
Pitch	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)
Number of Rows	2	2	2	2
Row Spacing	0.181" (4.60mm)	0.181" (4.60mm)	0.181" (4.60mm)	0.181" (4.60mm)
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Termination	Crimp	Crimp	Crimp	Crimp
Fastening Type	Latch Lock	Latch Lock	Latch Lock	Latch Lock
Insulation Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6
Color	Blue	Natural	Yellow	Blue
Series	Universal Power	Universal Power	Power Double Lock	Power Double Lock
Operating Temperature	Not specified	-30°C ~ 105°C	-30°C ~ 105°C	-30°C ~ 105°C
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All four connector housing variants (176273-6, 176273-1, 177900-4, 177900-6) are active products manufactured by TE Connectivity AMP Connectors and maintain full RoHS compliance. Selection between these parts is determined by application-specific requirements for color coding and series designation.

176273-6 (Blue, Universal Power Series): Primary specification with 877 units in stock. Suitable for applications requiring blue housing identification within the Universal Power connector family.

176273-1 (Natural, Universal Power Series): Highest inventory availability at 13,876 units. Functionally equivalent to 176273-6 with natural color housing and specified operating temperature range of -30°C to 105°C. Recommended for applications where color coding is not a functional requirement and maximum stock availability is advantageous.

177900-4 (Yellow, Power Double Lock Series): 4,603 units in stock. Provides yellow housing identification and operates within -30°C to 105°C temperature range. Suitable for applications requiring Power Double Lock series designation and yellow color coding.

177900-6 (Blue, Power Double Lock Series): 737 units in stock. Blue housing variant of the Power Double Lock series with ROHS3 compliance and -30°C to 105°C operating temperature specification. Applicable when Power Double Lock series compatibility is required with blue color identification.

All parts carry MSL 1 rating and require separate contact procurement. Operating temperature specifications are provided for 176273-1, 177900-4, and 177900-6; the main part 176273-6 does not specify operating temperature limits in available documentation.

Frequently Asked Questions (FAQ)

Q: Can 176273-1 be used as a direct replacement for 176273-6?

A: Yes. Both parts maintain identical electrical and mechanical specifications including connector type, contact type, position count, pitch, row configuration, mounting type, termination method, and fastening mechanism. The primary difference is housing color (natural versus blue) and series designation (both Universal Power). Selection depends on application color-coding requirements.

Q: What is the difference between Universal Power and Power Double Lock series connectors?

A: Both series share identical core electrical and mechanical parameters for the 4-position 3.96mm pitch configuration. Series designation reflects internal TE Connectivity product line organization. Substitution between series is permitted when core connector specifications match and application requirements do not mandate specific series compatibility.

Q: Are contacts included with these connector housings?

A: No. All four part variants (176273-6, 176273-1, 177900-4, 177900-6) are housings only. Female socket contacts must be procured separately and are not included with the housing purchase.

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

A: Both RoHS and ROHS3 represent compliance with restriction of hazardous substances regulations. ROHS3 (177900-6) represents the current regulatory standard. Both compliance levels are acceptable for applications subject to RoHS requirements. Selection between RoHS Compliant and ROHS3 Compliant variants depends on specific regulatory or procurement requirements.

Q: Can these connectors be used in applications with operating temperatures below -30°C or above 105°C?

A: Operating temperature specifications are provided for 176273-1, 177900-4, and 177900-6 as -30°C to 105°C. The main part 176273-6 does not specify operating temperature limits in available documentation. Applications requiring operation outside the -30°C to 105°C range require verification against complete technical specifications or direct manufacturer consultation.

Q: What does MSL 1 (Unlimited) moisture sensitivity rating mean?

A: MSL 1 indicates the lowest moisture sensitivity level. These connectors have unlimited shelf life under standard storage conditions and do not require special moisture-control handling or baking procedures prior to assembly.

Q: Are all four parts suitable for crimp termination with standard AMP contact tooling?

A: All four parts are specified for crimp contact termination. Compatibility with specific crimp tooling depends on the contact part numbers selected, which are procured separately. Contact specifications must be verified for tooling compatibility.

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