OSTT7100151 Equivalent & Substitute Parts

Part Overview

The OSTT7100151 is a 10-position wire-to-board terminal block manufactured by On Shore Technology Inc., designed for through-hole PCB mounting with a 45° mating angle and 0.250" (6.35mm) pitch. This component operates at 30 A and 300 V with screw-based wire termination using a rising cage clamp mechanism. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

OSTT7100151

On Shore Technology Inc.In Stock: 926OSTT7100151 Datasheet

Current PartRFQ

T71003510000G

Amphenol AnytekIn Stock: 1032T71003510000G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OSTT7100151 with the T71003510000G is based on the following critical parameters that remain constant or compatible:

• Position Count & Pitch: Both parts maintain 10 positions at 0.250" (6.35mm) pitch, ensuring PCB footprint compatibility
• Electrical Ratings: Both support 30 A current and 300 V voltage, maintaining circuit performance requirements
• Wire Gauge Compatibility: Both accept 10-24 AWG wire, preserving termination flexibility
• Mounting Method: Both use through-hole mounting with screw-based rising cage clamp termination
• Compliance: Both are ROHS3 compliant and REACH unaffected, meeting regulatory requirements

The primary difference is the mating angle: the OSTT7100151 uses 45° (135°) orientation while the T71003510000G uses 35° (145°) orientation. This angular variation affects connector approach geometry but does not impact electrical or mechanical compatibility when the PCB layout accommodates the different angle.

Parameter Comparison

Engineering Selection Recommendations

The T71003510000G serves as an active substitute for the obsolete OSTT7100151. Both components meet ROHS3 compliance and REACH requirements, ensuring regulatory alignment for new designs and legacy system support.

The T71003510000G offers an extended operating temperature range (-40°C ~ 115°C versus -30°C ~ 105°C), providing broader thermal performance capability. The substitute maintains electrical and mechanical compatibility through identical position count, pitch, current/voltage ratings, and wire gauge specifications.

Design consideration: The mating angle difference (45° versus 35°) requires PCB layout verification to ensure connector approach geometry is compatible with the physical installation space. The M3.5 screw thread and reduced torque specification (0.78 Nm) on the substitute differ from the original M3 thread and 1.0 Nm torque; assembly procedures should be adjusted accordingly to prevent over-torquing.

Frequently Asked Questions (FAQ)

Q: Can the T71003510000G directly replace the OSTT7100151 without PCB modification?

A: Electrical and mechanical compatibility is maintained. However, the mating angle differs (35° versus 45°), which may affect connector approach geometry. PCB layout must be evaluated to confirm the angular variation does not create physical interference or installation conflicts.

Q: Are the electrical ratings identical between these parts?

A: Yes. Both components support 30 A current, 300 V voltage, and 10-24 AWG wire gauge. Electrical performance remains equivalent.

Q: What is the impact of the different screw specifications?

A: The substitute uses M3.5 thread with 0.78 Nm torque versus the original M3 thread with 1.0 Nm torque. Assembly procedures must be updated to apply the correct torque specification to prevent damage to the clamp mechanism.

Q: Does the extended temperature range of the substitute provide additional design margin?

A: The T71003510000G operates from -40°C ~ 115°C compared to the original -30°C ~ 105°C. This extended range may provide additional thermal margin for applications operating at temperature extremes, though the original specification should be verified against actual system requirements.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the OSTT7100151 and T71003510000G are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Q: What is the packaging difference?

A: The original part number does not specify packaging detail. The substitute is supplied in bulk packaging. Verify packaging requirements for your procurement and assembly processes.