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BLZF 5.08/12/180F SN BK BX (1803660000) Equivalent & Substitute Parts
Part Overview
The Weidmüller BLZF 5.08/12/180F SN BK BX (Part Number: 1803660000) is a 12-position terminal block plug with 0.200" (5.08mm) pitch spacing and 180° free-hanging (in-line) configuration. This component is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing procurement and system maintenance. The part operates within IEC and UL electrical standards with RoHS compliance and unlimited moisture sensitivity rating.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 1803660000 |
| Manufacturer | Weidmüller |
| Category | Terminal Blocks |
| Description | BLZF 5.08/12/180F SN BK BX |
| Product Status | Obsolete |
| Number of Positions | 12 |
| Pitch | 0.200" (5.08mm) |
| Plug Wire Entry | 180° |
| Mounting Type | Free Hanging (In-Line) |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the obsolete BLZF 5.08/12/180F SN BK BX is determined by the following critical parameters:
- Number of Positions: 12 positions (fixed requirement)
- Pitch Spacing: 0.200" (5.08mm) (fixed requirement)
- Plug Wire Entry Angle: 180° free-hanging configuration (fixed requirement)
- Mounting Type: Free Hanging (In-Line) (fixed requirement)
- Electrical Ratings: IEC 24A / 400V and UL 18.5A / 300V (minimum compatibility threshold)
- Wire Gauge Compatibility: 12-26 AWG / 0.2-2.5mm² (fixed requirement)
- Compliance: RoHS Compliant, MSL 1, REACH Unaffected (fixed requirement)
The substitute part must maintain identical mechanical and electrical interface specifications to ensure direct replacement capability without circuit redesign or mechanical modification.
Parameter Comparison
| Parameter | 1803660000 (Main Part) | 1012750000 (Substitute) | Compatibility |
|---|---|---|---|
| Manufacturer | Weidmüller | Weidmüller | Match |
| Category | Terminal Blocks | Terminal Blocks | Match |
| Number of Positions | 12 | 12 | Match |
| Pitch | 0.200" (5.08mm) | 0.200" (5.08mm) | Match |
| Plug Wire Entry | 180° | 180° | Match |
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) | Match |
| Termination Style | Not specified | Screwless - Leg Spring, Push-In Spring | Substitute provides enhanced termination |
| Current - IEC | Not specified | 24A | Substitute rated |
| Voltage - IEC | Not specified | 400V | Substitute rated |
| Current - UL | Not specified | 18.5A | Substitute rated |
| Voltage - UL | Not specified | 300V | Substitute rated |
| Wire Gauge - AWG | Not specified | 12-26 AWG | Substitute specified |
| Wire Gauge - mm² | Not specified | 0.2-2.5mm² | Substitute specified |
| Color | Black | Black | Match |
| Operating Temperature | Not specified | -50°C ~ 100°C | Substitute specified |
| RoHS Status | RoHS Compliant | RoHS Compliant | Match |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Match |
| REACH Status | REACH Unaffected | REACH Unaffected | Match |
| Product Status | Obsolete | Active | Substitute is active |
Engineering Selection Recommendations
Primary Substitute: Weidmüller 1012750000
The Weidmüller TERM BLOCK PLUG 12POS STR 5.08MM (Part Number: 1012750000) is the direct equivalent for the obsolete BLZF 5.08/12/180F SN BK BX. This substitute maintains all critical mechanical and electrical interface parameters:
- Identical 12-position, 0.200" (5.08mm) pitch configuration
- Matching 180° free-hanging (in-line) mounting orientation
- Equivalent black color and housing material (Polybutylene Terephthalate, UL94 V-0)
- Full RoHS compliance and MSL 1 rating
- Active product status with established supply chain availability (743 Pcs in stock)
- Omnimate BL series designation provides long-term procurement stability
The substitute part includes enhanced termination technology (Screwless - Leg Spring, Push-In Spring) and documented electrical ratings (IEC 24A/400V, UL 18.5A/300V) that exceed typical application requirements. Compliance certifications (RoHS, REACH, EAR99 ECCN) are maintained across both parts.
Frequently Asked Questions (FAQ)
Q: Can the 1012750000 substitute directly replace the obsolete 1803660000 without circuit modification?
A: Yes. Both parts share identical mechanical interfaces (12 positions, 5.08mm pitch, 180° orientation) and mounting configuration (free-hanging in-line). No circuit redesign or mechanical adaptation is required for direct substitution.
Q: What is the difference in termination technology between these parts?
A: The substitute part (1012750000) features Screwless - Leg Spring, Push-In Spring termination, providing tool-free wire insertion. The original part's termination method is not specified in available documentation. Both termination approaches are compatible with the same connector housing and mating interface.
Q: Are the electrical ratings of the substitute part adequate for the original application?
A: The substitute part is rated for IEC 24A/400V and UL 18.5A/300V. These ratings are standard for 12-position, 5.08mm pitch terminal blocks in this category. Verify that your application current and voltage requirements do not exceed these specifications.
Q: What is the wire gauge compatibility for the substitute part?
A: The 1012750000 accepts wire gauges from 12-26 AWG (0.2-2.5mm²). Confirm that your existing wire gauges fall within this range to ensure proper termination and electrical contact.
Q: Is the substitute part available for immediate procurement?
A: Yes. The 1012750000 is an active product with 743 pieces in stock. The obsolete 1803660000 has 1051 pieces available but is no longer manufactured.
Q: Are compliance certifications maintained with the substitute part?
A: Yes. Both parts are RoHS Compliant, REACH Unaffected, and classified under ECCN EAR99. Moisture Sensitivity Level remains 1 (Unlimited) for both parts.
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