Weidmüller 7940126327 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Weidmüller 7940126327 is a 21-position wire-to-board terminal block with 0.197" (5.00mm) pitch, designed for horizontal mounting through PCB holes. This component belongs to the Omnimate LM series and is currently in active production status. Finding equivalent substitute parts may be necessary due to supply constraints, lead time requirements, or specific application needs where alternative configurations are acceptable within the defined electrical and mechanical parameters.

Substiute Parts

7940126327

WeidmüllerIn Stock: 9417940126327 Datasheet

Current PartRFQ

2-282836-1

TE Connectivity AMP ConnectorsIn Stock: 8712-282836-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 7940126327 is determined by the following critical parameters:

• Pitch (0.197" / 5.00mm): Must match exactly to ensure PCB footprint compatibility
• Mating Orientation (Horizontal with Board): Must be identical for mechanical fit
• Mounting Type (Through Hole): Must remain consistent with PCB assembly process
• Number of Levels (1): Single-level configuration is required

The substitute part TE Connectivity AMP Connectors 2-282836-1 shares the same pitch, mating orientation, and mounting type. However, it differs in position count (20 positions versus 21 positions). This difference means the substitute is suitable only for applications where the 20-position configuration meets functional requirements and PCB layout permits the reduced position count.

Parameter Comparison

Engineering Selection Recommendations

Both the Weidmüller 7940126327 and TE Connectivity 2-282836-1 maintain active product status and full RoHS compliance, making either suitable for new designs from a regulatory standpoint. The primary selection criterion is position count: the Weidmüller part accommodates 21 positions while the TE Connectivity substitute provides 20 positions. Selection between these parts depends entirely on whether your application requires all 21 positions or can function with 20 positions. Both parts share identical pitch, mounting orientation, and through-hole mounting type, ensuring mechanical compatibility at the PCB level when position count is not a limiting factor.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 2-282836-1 be used as a direct replacement for the Weidmüller 7940126327?

A: Direct replacement is possible only if your application requires 20 or fewer connection points. The TE Connectivity part has one fewer position (20 versus 21), so it cannot accommodate designs that utilize all 21 positions of the original part.

Q: Are the PCB footprints identical between these two parts?

A: The footprints are compatible in terms of pitch (0.197" / 5.00mm) and mounting type (through hole). However, the TE Connectivity part occupies one less position on the PCB due to its 20-position configuration versus the 21-position Weidmüller design.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the Weidmüller 7940126327 and TE Connectivity 2-282836-1 are RoHS compliant with Moisture Sensitivity Level 1 (Unlimited), making them equivalent from a regulatory and environmental standpoint.

Q: What is the difference in housing color, and does it affect functionality?

A: The Weidmüller part is black while the TE Connectivity substitute is green. Color is a visual identifier only and does not affect electrical or mechanical performance.

Q: Are there any electrical parameter differences between these parts?

A: The TE Connectivity 2-282836-1 specifies electrical ratings (14.6 A at 300 V) and detailed contact materials. The Weidmüller 7940126327 does not provide these specifications in the available data. Verify that the TE Connectivity electrical ratings meet or exceed your application requirements before substitution.