Weidmüller 1776272001 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1776272001 is a 16-position terminal block header with male pins, shrouded on four sides, featuring 0.200" (5.08mm) pitch vertical through-hole mounting. This component is part of the Omnimate SL series and is classified as obsolete. Finding equivalent substitute parts is necessary due to the discontinued status of this model, while maintaining identical electrical and mechanical performance in existing designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	1776272001
Manufacturer	Weidmüller
Series	Omnimate SL
Product Status	Obsolete
Number of Positions	16
Pitch	0.200" (5.08mm)
Header Orientation	Vertical
Type	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole
Termination Style	Solder
Current - IEC	27.5A
Voltage - IEC	400 V
Current - UL	18.5 A
Voltage - UL	300 V
Operating Temperature	-50°C ~ 100°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution of the Weidmüller 1776272001 is determined by strict equivalence across the following critical parameters:

Electrical Performance: Current and voltage ratings (IEC: 27.5A @ 400V; UL: 18.5A @ 300V) must match exactly
Physical Configuration: 16 positions, 0.200" (5.08mm) pitch, vertical orientation, male pins with 4-side shrouding
Mounting and Termination: Through-hole solder termination
Environmental and Compliance: Operating temperature range (-50°C ~ 100°C), UL94 V-0 flammability rating, RoHS compliance

The Weidmüller 1838350000 meets all these criteria and is classified as an active product, making it a direct functional equivalent despite differences in contact tail length and packaging configuration.

Parameter Comparison

Parameter	1776272001 (Main Part)	1838350000 (Substitute)	Compatibility
Manufacturer	Weidmüller	Weidmüller	Match
Series	Omnimate SL	Omnimate SL	Match
Number of Positions	16	16	Match
Pitch	0.200" (5.08mm)	0.200" (5.08mm)	Match
Header Orientation	Vertical	Vertical	Match
Type	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Match
Mounting Type	Through Hole	Through Hole	Match
Termination Style	Solder	Solder	Match
Current - IEC	27.5A	27.5A	Match
Voltage - IEC	400 V	400 V	Match
Current - UL	18.5 A	18.5 A	Match
Voltage - UL	300 V	300 V	Match
Operating Temperature	-50°C ~ 100°C	-50°C ~ 100°C	Match
Material Flammability Rating	UL94 V-0	UL94 V-0	Match
Contact Mating Finish	Tin	Tin	Match
Housing Material	Liquid Crystal Polymer (LCP), Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled	Match
Contact Material	Copper Alloy	Copper Alloy	Match
RoHS Status	RoHS Compliant	RoHS Compliant	Match
Contact Tail Length	0.059" (1.50mm)	0.126" (3.20mm)	Difference
Product Status	Obsolete	Active	Substitute is active

Engineering Selection Recommendations

The Weidmüller 1838350000 is the direct substitute for the obsolete 1776272001. Both components maintain identical electrical specifications, mechanical configuration, and compliance certifications. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

The primary physical difference is the contact tail length (0.059" versus 0.126"), which reflects manufacturing evolution within the Omnimate SL series while preserving all functional and electrical characteristics. Both parts are RoHS compliant and carry UL94 V-0 flammability certification, meeting the same regulatory requirements.

Selection of the 1838350000 is appropriate for new designs and replacement applications where the obsolete 1776272001 is no longer available. The active product status and identical electrical performance ensure compatibility with existing circuit designs and PCB layouts designed for the original component.

Frequently Asked Questions (FAQ)

Q: Can the 1838350000 be used as a direct replacement for the 1776272001 in existing designs?

A: Yes. Both components share identical electrical ratings (27.5A @ 400V IEC; 18.5A @ 300V UL), pitch (5.08mm), position count (16), and mounting configuration (vertical through-hole solder). The contact tail length difference does not affect electrical performance or standard PCB compatibility.

Q: What is the significance of the contact tail length difference?

A: The contact tail length (0.059" on the original versus 0.126" on the substitute) affects the depth of solder penetration during assembly. The longer tail on the 1838350000 provides additional material for solder joint formation, which is a manufacturing improvement. Both lengths are within acceptable solder joint standards for through-hole components.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the 1776272001 and 1838350000 carry identical certifications: UL94 V-0 flammability rating, RoHS compliance, and equivalent electrical performance under both IEC and UL standards.

Q: Why is the 1776272001 listed as obsolete?

A: The 1776272001 has been discontinued by Weidmüller. The 1838350000 represents the current active equivalent within the Omnimate SL series, offering the same functionality with improved manufacturing specifications.

Q: What packaging differences exist between these parts?

A: The 1776272001 original packaging specification is not provided. The 1838350000 is supplied in bulk packaging. For specific packaging requirements, consult with the component supplier regarding available options.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both components operate across the identical temperature range of -50°C to 100°C, ensuring equivalent thermal performance in all standard industrial applications.

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