PST 1,3/ 4-LH-5,0 C3 Equivalent & Substitute Parts

Part Overview

The Phoenix Contact PST 1,3/ 4-LH-5,0 C3 (Manufacturer Part Number: 1704343) is a 4-position terminal block header with male pins and partial shroud configuration. This component features 90° right-angle orientation, 0.197" (5.00mm) pitch spacing, and solder termination for through-hole mounting applications. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where legacy component compatibility is required.

Substiute Parts

1704343

Phoenix ContactIn Stock: 10371704343 Datasheet

Current PartRFQ

OSTOQ047051

On Shore Technology Inc.In Stock: 11777OSTOQ047051 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PST 1,3/ 4-LH-5,0 C3 is determined by the following critical parameters:

• Position Count: 4 positions (fixed requirement)
• Pitch Spacing: 0.197" (5.00mm) (fixed requirement)
• Header Orientation: 90° right-angle configuration (fixed requirement)
• Termination Method: Solder termination (fixed requirement)
• Mounting Configuration: Through-hole mounting (fixed requirement)
• Electrical Performance: Current rating minimum 14.6A IEC; voltage rating minimum 400V IEC
• Compliance: RoHS compliance status

The On Shore Technology Inc. OSTOQ047051 satisfies these core substitution criteria. While shroud configuration differs (2-side shrouded versus partial shroud), both designs accommodate the same 4-position, 5.00mm pitch header interface. The substitute maintains electrical performance specifications and through-hole solder mounting compatibility.

Parameter Comparison

Engineering Selection Recommendations

The OSTOQ047051 serves as a functional substitute for the obsolete PST 1,3/ 4-LH-5,0 C3 based on the following engineering criteria:

Electrical Compatibility: Both components maintain solder termination and through-hole mounting architecture. The OSTOQ047051 operates at 300V UL rating, which is lower than the 400V IEC specification of the original part. Applications requiring the full 400V IEC rating must evaluate whether the 300V UL specification meets system requirements.

Mechanical Compatibility: Both parts feature identical 4-position configuration with 0.197" (5.00mm) pitch spacing and 90° right-angle orientation. Physical footprint compatibility is established for PCB mounting. The OSTOQ047051 provides 2-side shrouding compared to partial shroud on the original, offering enhanced mechanical protection during assembly and operation.

Compliance Status: The OSTOQ047051 holds active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. The original part's obsolete status necessitates transition to active alternatives for new production and maintenance applications.

Dimensional Considerations: Contact tail length differs (4.60mm versus 4.00mm) and insulation height varies significantly (11.20mm versus 4.00mm). PCB design and clearance verification is required before implementation.

Frequently Asked Questions (FAQ)

Q: Can the OSTOQ047051 directly replace the PST 1,3/ 4-LH-5,0 C3 in existing designs?

A: Direct replacement is possible for applications where the 300V UL rating meets system voltage requirements. The identical 4-position, 5.00mm pitch configuration and 90° right-angle orientation ensure functional compatibility. Physical layout verification is necessary due to differences in contact tail length and insulation height.

Q: What is the primary difference between partial shroud and 2-side shrouded configurations?

A: Partial shroud provides minimal mechanical protection to specific contact areas, while 2-side shrouding encloses contacts on two opposing sides. Both configurations maintain the same electrical interface and pitch spacing. Shroud design selection depends on application-specific mechanical protection requirements and PCB layout constraints.

Q: Are there voltage rating implications when substituting the OSTOQ047051?

A: The original part specifies 400V IEC rating, while the substitute provides 300V UL rating. These represent different testing standards and voltage classifications. Applications operating at voltages between 300V and 400V require explicit evaluation to confirm the substitute meets system safety and performance requirements.

Q: What compliance certifications apply to the OSTOQ047051?

A: The OSTOQ047051 holds ROHS3 compliance and maintains EAR99 ECCN classification. RoHS compliance ensures the component meets environmental and hazardous substance restrictions applicable to electronic equipment manufacturing and distribution.

Q: How do contact tail length differences affect PCB design?

A: The OSTOQ047051 features 0.157" (4.00mm) contact tail length compared to 0.138" (4.60mm) on the original part. This 0.019" difference may require PCB via placement adjustment and solder joint design verification. Consult PCB layout guidelines and thermal analysis for specific applications.