Weidmüller 1637790000 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1637790000 is a 23-position terminal block plug with female sockets, 5.00mm pitch, and 270° wire entry orientation. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new designs requiring compatible connectivity solutions. The plug features screw-clamping termination, tin-plated copper alloy contacts, and operates across -50°C to 100°C with IEC ratings of 15A at 400V and UL ratings of 10A at 300V.

Substiute Parts

1637790000

WeidmüllerIn Stock: 9591637790000 Datasheet

Current PartRFQ

1958670000

WeidmüllerIn Stock: 8061958670000 Datasheet

DirectRFQ

OSTVM235551

On Shore Technology Inc.In Stock: 788OSTVM235551 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 1637790000 is determined by the following critical parameters:

Direct Substitutes must maintain:

• 23-position configuration
• 5.00mm pitch (±0.03mm tolerance acceptable)
• Female socket type
• Screw-clamping termination
• Free hanging in-line mounting
• Copper alloy contacts with tin plating
• PBT housing with UL94 V-0 rating
• RoHS compliance
• Operating temperature range compatibility (-50°C minimum, 100°C maximum)
• Current and voltage ratings equal to or exceeding IEC 15A/400V and UL 10A/300V

Similar Substitutes may accommodate:

• Pitch variations within 5.00-5.08mm range
• Wire entry angle differences (180° vs 270°)
• Termination style variations (pressure clip vs clamping yoke)
• Contact material alternatives (steel vs copper alloy)
• Housing material alternatives (thermoplastic vs PBT)
• Reduced current/voltage ratings if application permits
• Narrower wire gauge ranges if within application requirements

Parameter Comparison

Engineering Selection Recommendations

Weidmüller 1958670000 is the primary direct substitute for the obsolete 1637790000. Both components share identical pitch (5.00mm), wire entry angle (270°), termination mechanism (screw-clamping yoke), and housing material (PBT with UL94 V-0). The 1958670000 maintains active product status, ensuring long-term availability and supply chain continuity. Current ratings are enhanced (23A IEC, 20A UL versus 15A IEC, 10A UL), providing superior performance margin. Wire gauge acceptance is broader (12-30 AWG, 0.2-4mm² versus 12-26 AWG, 0.5-2.5mm²), accommodating expanded application flexibility. Both components are RoHS compliant and operate across the same temperature range (-50°C to 100°C). This substitute requires no mechanical or electrical redesign.

On Shore Technology OSTVM235551 functions as a similar substitute where mechanical constraints permit wire entry angle modification from 270° to 180°. This component maintains 23-position configuration, M2.5 screw termination, and UL94 V-0 flammability rating. The 5.08mm pitch represents a 0.08mm deviation from the original 5.00mm specification. Termination employs pressure clip rather than clamping yoke methodology. Contact material transitions from copper alloy to steel with zinc plating. Operating temperature range extends to 105°C maximum. Wire gauge acceptance is narrower (12-22 AWG). This substitute is suitable only for applications where wire entry angle reconfiguration is feasible and where the narrower wire gauge range accommodates existing conductor specifications.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1958670000 directly replace the 1637790000 without modification?

A: Yes. Both components share identical pitch (5.00mm), wire entry orientation (270°), termination style (screw-clamping yoke), and housing material (PBT). Mechanical and electrical compatibility is maintained. The 1958670000 features enhanced current ratings and broader wire gauge acceptance, making it a direct functional upgrade.

Q: What are the key differences between the Weidmüller 1958670000 and the On Shore OSTVM235551?

A: The primary differences are pitch (5.00mm versus 5.08mm), wire entry angle (270° versus 180°), termination mechanism (clamping yoke versus pressure clip), contact material (copper alloy versus steel), and contact finish (tin versus zinc). The OSTVM235551 operates at higher maximum temperature (105°C) but accepts narrower wire gauges (12-22 AWG).

Q: Is the On Shore OSTVM235551 suitable as a substitute if my application uses 24 AWG wire?

A: No. The OSTVM235551 accepts only 12-22 AWG wire. The 24 AWG conductor falls outside this specification. The Weidmüller 1958670000 accepts 12-30 AWG and would be appropriate for this application.

Q: What is the impact of the 0.08mm pitch difference between the 5.00mm and 5.08mm specifications?

A: The 0.08mm deviation represents a 1.6% tolerance variance. Mechanical mating with corresponding socket headers designed for 5.00mm pitch may experience reduced contact pressure or alignment issues. Verification with the mating connector specification is required before substitution.

Q: Are all three components RoHS compliant?

A: Yes. The Weidmüller 1637790000 and 1958670000 are RoHS compliant. The On Shore OSTVM235551 is ROHS3 compliant. All three meet current regulatory requirements for hazardous substance restriction.

Q: Can the OSTVM235551 be used in applications requiring 270° wire entry?

A: No. The OSTVM235551 features 180° wire entry orientation. Physical reconfiguration of the connector or application redesign would be necessary to accommodate this difference. The Weidmüller 1958670000 maintains the original 270° orientation.

Q: What is the current rating difference between the main part and its direct substitute?

A: The Weidmüller 1637790000 is rated at 15A (IEC) and 10A (UL). The 1958670000 is rated at 23A (IEC) and 20A (UL). The substitute provides higher current capacity, suitable for applications at or below the original ratings without derating concerns.