SCZ 3.81/08/180FIZE SN BK BX (1237490000) Equivalent & Substitute Parts

Part Overview

The Weidmüller SCZ 3.81/08/180FIZE SN BK BX (Part Number: 1237490000) is an 8-position terminal block plug with 0.150" (3.81mm) pitch spacing and 180° free-hanging (in-line) wire entry configuration. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system maintenance and new designs. The part maintains full RoHS compliance and is unaffected by REACH regulations, making it suitable for modern industrial applications despite its discontinued status.

Substiute Parts

1237490000

WeidmüllerIn Stock: 10171237490000 Datasheet

Current PartRFQ

1970360000

WeidmüllerIn Stock: 7581970360000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCZ 3.81/08/180FIZE SN BK BX is determined by the following critical parameters:

• Number of Positions: 8 positions required
• Pitch Specification: 0.150" (3.81mm) center-to-center spacing
• Wire Entry Configuration: 180° free-hanging (in-line) orientation
• Electrical Ratings: Current and voltage specifications must meet or exceed original ratings
• Termination Method: Screw-clamping technology for secure wire retention
• Compliance Requirements: RoHS compliance and REACH unaffected status

The identified substitute part (1970360000) maintains identical mechanical and electrical compatibility across all critical parameters, enabling direct functional replacement in existing applications.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 1970360000 (TERM BLOCK PLUG 8POS STR 3.81MM) is the appropriate replacement for the obsolete SCZ 3.81/08/180FIZE SN BK BX. Selection is based on the following engineering criteria:

• Mechanical Compatibility: Identical 8-position configuration with 0.150" (3.81mm) pitch and 180° free-hanging orientation ensures direct mechanical fit in existing connector housings and mounting structures.
• Electrical Equivalence: The substitute part provides specified electrical ratings (17.5A at 320V per IEC standards) that support the original application requirements.
• Regulatory Compliance: Both parts maintain RoHS compliance and REACH unaffected status, satisfying modern regulatory requirements for industrial and commercial applications.
• Active Product Status: The substitute part is currently in active production, ensuring long-term availability and supply chain continuity compared to the obsolete original part.
• Identical Termination Technology: Screw-clamping yoke termination method is preserved, maintaining compatibility with existing wire preparation and installation procedures.

Frequently Asked Questions (FAQ)

Q: Can the 1970360000 be used as a direct replacement for the 1237490000?

A: Yes. Both parts share identical mechanical specifications (8 positions, 0.150" pitch, 180° free-hanging orientation) and termination method (screw-clamping yoke). The substitute part is electrically rated at 17.5A (IEC) and 320V, supporting standard industrial applications. Both maintain RoHS compliance and MSL 1 rating.

Q: What is the primary reason for substitution?

A: The original part (1237490000) is classified as obsolete and no longer in production. The substitute part (1970360000) is actively manufactured by the same supplier, ensuring continued availability and supply chain reliability.

Q: Are there any packaging differences between the two parts?

A: The original part packaging is not specified in available documentation. The substitute part is supplied in bulk packaging, which is standard for terminal block components in industrial applications.

Q: Do both parts support the same wire gauge specifications?

A: The substitute part supports 16-28 AWG (0.2-1.5mm²) wire gauge range with a 7mm wire strip length. Original part wire gauge specifications are not documented. Verify wire gauge compatibility with your specific application requirements.

Q: Are there any temperature or environmental differences?

A: The substitute part operates across -50°C to 120°C, covering standard industrial temperature ranges. Original part operating temperature specifications are not documented. Both parts maintain MSL 1 (unlimited moisture sensitivity level) rating.

Q: What is the series designation for the substitute part?

A: The substitute part belongs to the Weidmüller Omnimate SC series, which is a current-generation terminal block family offering enhanced reliability and performance characteristics.