OSTKH040550 Equivalent & Substitute Parts

Part Overview

The OSTKH040550 is a 4-position wire-to-board terminal block manufactured by On Shore Technology Inc., designed for vertical PCB mounting with 0.250" (6.35mm) pitch spacing. This component is rated for 30 A at 300 V and accommodates wire gauges from 10-24 AWG using screw-pressure clip termination. The part is currently obsolete, making identification of compatible substitute components essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

OSTKH040550

On Shore Technology Inc.In Stock: 906OSTKH040550 Datasheet

Current PartRFQ

KH0405500000G

Amphenol AnytekIn Stock: 854KH0405500000G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OSTKH040550 is determined by strict equivalence across the following critical parameters:

• Position count and pitch: 4 positions at 0.250" (6.35mm) spacing
• Electrical ratings: 30 A current and 300 V voltage minimum
• Wire accommodation: 10-24 AWG wire gauge support
• Termination method: Screw-pressure clip mechanism
• Mounting configuration: Through-hole vertical orientation
• Mechanical interface: M3 screw thread with 0.49 Nm torque specification

The substitute part KH0405500000G from Amphenol Anytek meets all these criteria. Both parts share identical functional specifications for position count, pitch, current, voltage, wire gauge, termination type, and mounting method. The substitute maintains the same screw thread specification and torque rating, ensuring mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The KH0405500000G from Amphenol Anytek is a direct functional equivalent to the obsolete OSTKH040550. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part maintains active product status, ensuring ongoing availability and supply chain continuity.

The KH0405500000G provides an extended operating temperature range (-40°C ~ 115°C versus -30°C ~ 105°C), which offers improved thermal performance margins for applications operating at temperature extremes. All electrical, mechanical, and termination specifications are identical, supporting direct substitution in existing designs without circuit modification or PCB layout changes.

Frequently Asked Questions (FAQ)

Q: Can KH0405500000G replace OSTKH040550 in existing designs? A: Yes. Both parts share identical position count, pitch, current rating, voltage rating, wire gauge accommodation, termination method, and screw specifications. Direct substitution is supported without design modification.

Q: Are there differences in operating temperature ranges? A: The KH0405500000G operates from -40°C to 115°C, compared to the OSTKH040550 range of -30°C to 105°C. The substitute provides extended temperature capability, which is beneficial for applications in extreme thermal environments.

Q: Do both parts meet current regulatory compliance? A: Yes. Both the OSTKH040550 and KH0405500000G are ROHS3 compliant and REACH unaffected, meeting current environmental and safety standards.

Q: What is the significance of the product status difference? A: The OSTKH040550 is obsolete, while KH0405500000G is active. Active status ensures continued manufacturing, availability, and technical support from the supplier.

Q: Are the screw specifications identical? A: Yes. Both parts use M3 screw threads with 0.49 Nm (4.3 Lb-In) torque specification, ensuring identical assembly procedures and mechanical interface compatibility.