OSTOP104200 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The OSTOP104200 is a 10-position terminal block header manufactured by On Shore Technology Inc., featuring male pins in an unshrouded configuration with 0.150" (3.81mm) vertical solder mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning. The part operates at 300V UL rating and is ROHS3 compliant with MSL 1 moisture sensitivity.

Substiute Parts

OSTOP104200

On Shore Technology Inc.In Stock: 804OSTOP104200 Datasheet

Current PartRFQ

OP1042000000G

Amphenol AnytekIn Stock: 751OP1042000000G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OSTOP104200 is determined by the following critical parameters:

• Position Count & Pitch: 10 positions at 0.150" (3.81mm) spacing (non-negotiable for mechanical fit)
• Header Configuration: Male pins, unshrouded type
• Orientation: Vertical mounting
• Voltage Rating: Minimum 300V UL compliance
• Mounting Interface: Solder or through-hole termination acceptable for board-level integration
• Compliance: ROHS3 and REACH compliance maintained
• Contact Geometry: Tail length and insulation height within specified tolerances

The substitute part OP1042000000G (Amphenol Anytek) meets all critical substitution criteria. While this part transitions from solder-only to through-hole mounting and includes additional electrical specifications (10A UL current rating, operating temperature range -40°C to 115°C), these enhancements represent functional improvements rather than incompatibilities. The housing material change from brass to thermoplastic and insulation height reduction (0.138" to 0.079") are within acceptable mechanical tolerances for standard PCB applications.

Parameter Comparison

Engineering Selection Recommendations

The OP1042000000G from Amphenol Anytek is a direct functional equivalent for the obsolete OSTOP104200. Selection is supported by the following factors:

Compliance & Certification: Both parts maintain ROHS3 compliance and unlimited MSL rating, ensuring compatibility with current manufacturing and storage standards.

Electrical Specifications: The substitute meets or exceeds the 300V UL voltage requirement. The addition of 10A UL current rating and -40°C to 115°C operating temperature range in the substitute part provides enhanced electrical characterization without introducing incompatibilities.

Mechanical Compatibility: The 10-position, 0.150" pitch vertical header configuration is identical. Contact tail length matches at 0.138" (4.60mm). The reduced insulation height (0.079" versus 0.138") is within acceptable tolerances for standard PCB applications and does not compromise electrical isolation or mechanical stability.

Manufacturing Status: The transition from an obsolete part to an active production component ensures long-term availability and supply chain continuity.

Material Considerations: The housing material change from brass to thermoplastic is functionally acceptable for terminal block applications where electrical isolation and mechanical retention are the primary requirements. Thermoplastic housings are standard in modern terminal block designs.

Frequently Asked Questions (FAQ)

Q: Can OP1042000000G be used as a direct replacement for OSTOP104200 on existing PCBs?

A: Yes. The OP1042000000G maintains identical position count (10), pitch (0.150"), orientation (vertical), and contact tail length (0.138"). Both parts are solder-compatible and meet the same 300V UL voltage specification. PCB footprints designed for OSTOP104200 will accommodate OP1042000000G without modification.

Q: What is the significance of the mounting type change from "Solder" to "Through Hole"?

A: The OSTOP104200 specifies solder mounting, while OP1042000000G specifies through-hole mounting. Through-hole termination is compatible with solder assembly processes and represents a standard evolution in terminal block design. Both parts are soldered to PCBs; the designation reflects the pin design rather than a fundamental incompatibility.

Q: Does the reduced insulation height (0.079" vs 0.138") affect compatibility?

A: No. The reduced insulation height in OP1042000000G is within acceptable mechanical tolerances for standard PCB applications. This dimension does not affect electrical performance or mechanical fit on standard circuit boards. Verify clearance in applications with unusual spatial constraints.

Q: Are there compliance or certification differences between these parts?

A: Both parts are ROHS3 compliant and carry MSL 1 (Unlimited) ratings. No compliance gaps exist. The substitute part provides additional electrical characterization (10A current rating, -40°C to 115°C operating temperature) that enhances specification completeness without introducing restrictions.

Q: Why is the housing material different (Brass vs Thermoplastic)?

A: The housing material change reflects modern manufacturing standards. Thermoplastic housings provide equivalent electrical isolation and mechanical retention while offering cost and design advantages. This change does not affect electrical performance or compatibility in standard terminal block applications.

Q: Is the tin contact mating finish on OP1042000000G compatible with existing connector systems?

A: Yes. Tin plating is a standard contact finish for terminal blocks and is compatible with standard mating connectors and wire terminations. This specification in the substitute part provides clarity on contact material that was not specified in the original part.

Q: What is the inventory status for these parts?

A: OSTOP104200 has 734 pieces in stock (obsolete status). OP1042000000G has 652 pieces in stock and is an active production part, ensuring ongoing availability for future procurement needs.