TB200-08SP Equivalent & Substitute Parts

Part Overview

The TB200-08SP is an 8-circuit barrier block connector manufactured by Eaton - Bussmann Electrical Division, part of the Magnum® TB200 series. This terminal block features a 0.437" (11.10mm) pitch with dual-wall barrier construction and is designed for chassis and panel mounting applications. The part is currently active in production with 808 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when design requirements permit alternative configurations.

Substiute Parts

TB200-08SP

Eaton - Bussmann Electrical DivisionIn Stock: 851TB200-08SP Datasheet

Current PartRFQ

1546671-8

TE Connectivity AMP ConnectorsIn Stock: 11201546671-8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TB200-08SP is determined by the following critical parameters:

Primary Matching Criteria:

• Terminal block type: Barrier block configuration
• Number of circuits: 8 circuits
• Pitch specification: 0.437" (11.10mm)
• Number of rows: 2 rows
• Barrier construction: 2 wall (dual) barrier
• Mounting type: Chassis and panel mounting capability
• Bottom termination: Closed configuration
• Flammability rating: UL94 V-0 minimum

Secondary Compatibility Parameters:

• Voltage rating: 300V or higher
• Operating temperature range: Must accommodate -40°C minimum
• Wire gauge compatibility: Overlap within acceptable range
• Insulation material: Thermoplastic
• Compliance certifications: RoHS compliance required

The substitute part 1546671-8 (TE Connectivity AMP Connectors, Buchanan series) meets all primary matching criteria and maintains compatibility across secondary parameters with noted operational differences in current rating and maximum wire gauge.

Parameter Comparison

Engineering Selection Recommendations

The TB200-08SP and 1546671-8 are functionally equivalent barrier block connectors suitable for direct substitution in most applications. Both parts maintain active product status and comply with RoHS requirements.

Selection Considerations:

The TB200-08SP provides a 30A current rating and supports wire gauges from 12-22 AWG, with an operating temperature range extending to 130°C. The captive plate design on the screw termination provides additional mechanical retention during assembly.

The 1546671-8 substitute provides a 25A current rating and supports wire gauges from 14-22 AWG, with an operating temperature range to 120°C. This part is suitable for applications where the lower current rating and reduced temperature ceiling do not conflict with system requirements. The absence of the captive plate requires alternative fastening methods.

Both parts feature identical pitch, circuit count, voltage rating, barrier construction, and flammability certification. Selection between these parts should be based on application-specific current requirements, temperature operating envelope, and wire gauge compatibility.

Frequently Asked Questions (FAQ)

Q: Can 1546671-8 be used as a direct replacement for TB200-08SP?

A: The 1546671-8 is a functional equivalent in terms of physical form factor, pitch, circuit count, and electrical isolation. However, the 25A current rating of the 1546671-8 is lower than the 30A rating of the TB200-08SP. Substitution is permissible only when the application current requirements do not exceed 25A and the operating temperature does not exceed 120°C.

Q: What are the key differences between these two parts?

A: The primary differences are current rating (30A vs. 25A), wire gauge range (12-22 AWG vs. 14-22 AWG), maximum operating temperature (130°C vs. 120°C), and top termination design (captive plate vs. standard screws). The 1546671-8 also features nickel-plated terminal screws compared to zinc-plated screws on the TB200-08SP.

Q: Are both parts RoHS compliant?

A: Yes. The TB200-08SP is RoHS Compliant, and the 1546671-8 is ROHS3 Compliant. Both meet current RoHS requirements.

Q: What is the pitch specification and why is it important?

A: Both parts feature a 0.437" (11.10mm) pitch, which defines the center-to-center spacing between circuits. Pitch is critical for PCB layout compatibility and mechanical fit within the assembly. Identical pitch ensures these parts can occupy the same physical space on a mounting surface.

Q: Can I use 14 AWG wire with the TB200-08SP?

A: Yes. The TB200-08SP accepts wire gauges from 12-22 AWG, which includes 14 AWG. The 1546671-8 also accepts 14 AWG within its 14-22 AWG range.

Q: What is the significance of the dual-wall barrier construction?

A: The 2 Wall (Dual) barrier type provides electrical isolation between adjacent circuits, reducing crosstalk and improving safety in multi-circuit applications. Both parts feature this construction.

Q: Are there any packaging or inventory considerations?

A: The TB200-08SP has 808 units in stock (Bulk packaging), while the 1546671-8 has 1072 units in stock (Bulk packaging). Both are available in standard bulk packaging suitable for production environments.