LED GRN/RED DIFFUSED T-1 3/4 T/H 4361H1/5 Equivalent & Substitute Parts

Part Overview

The Visual Communications Company 4361H1/5 is a through-hole mounted dual-color LED indicator featuring green and red light emission in a T-1 3/4 (5mm) diffused lens package. This component operates with common cathode configuration and provides discrete color indication in 2.1V green and 2V red forward voltage specifications.

The 4361H1/5 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability for production, and support ongoing maintenance of systems utilizing this LED indicator.

Substiute Parts

4361H1/5

Visual Communications Company - VCCIn Stock: 9784361H1/5 Datasheet

Current PartRFQ

LTH5MM1152V

Visual Communications Company - VCCIn Stock: 1073LTH5MM1152V Datasheet

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WP59EGW

KingbrightIn Stock: 12372WP59EGW Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 4361H1/5 are identified based on the following critical parameters that define functional equivalence:

Primary Matching Criteria:

• Dual-color green and red LED configuration
• Common cathode electrical configuration
• T-1 3/4 (5mm) through-hole package with radial leads
• Diffused white lens with round domed top
• Forward voltage compatibility within typical circuit design tolerances
• RoHS3 compliance and REACH unaffected status

Acceptable Parameter Variations:

• Forward voltage (Vf): Variations within ±0.2V are acceptable for common cathode LED circuits
• Millicandela rating: Higher brightness ratings are acceptable for direct substitution
• Current test rating: Higher current ratings indicate enhanced performance capability
• Viewing angle: Variations accommodate different application requirements
• Wavelength peak: Minor shifts within the green (560-570nm) and red (620-650nm) spectrum ranges are acceptable

The substitute parts LTH5MM1152V and WP59EGW meet these criteria while offering improved specifications and active product status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Preferred):

The LTH5MM1152V from Visual Communications Company is the primary recommended substitute. This part maintains manufacturer continuity with the obsolete 4361H1/5, shares identical mechanical packaging (T-1 3/4 diffused lens, common cathode configuration), and provides enhanced electrical performance. The LTH5MM1152V is classified as active product status with ROHS3 compliance and REACH unaffected designation, ensuring long-term availability and regulatory compliance.

For Alternative Substitution:

The WP59EGW from Kingbright provides a functionally equivalent alternative with superior viewing angle specification (60° versus 40°). This part maintains all critical mechanical and electrical compatibility parameters, including T-1 3/4 through-hole radial mounting, diffused lens configuration, and common cathode operation. The WP59EGW carries active product status and ROHS3 compliance.

Regulatory and Compliance Considerations:

Both substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the obsolete 4361H1/5. Selection between LTH5MM1152V and WP59EGW should consider application-specific requirements for viewing angle and brightness characteristics, as both parts satisfy core compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the LTH5MM1152V directly replace the 4361H1/5 in existing circuit designs?

A: Yes. The LTH5MM1152V maintains identical mechanical packaging (T-1 3/4 through-hole radial), electrical configuration (common cathode), and forward voltage specifications within acceptable design tolerances. The higher millicandela rating (60mcd versus 10mcd green, 6.3mcd red) represents improved performance without requiring circuit modification.

Q: What are the key differences between the LTH5MM1152V and WP59EGW substitutes?

A: Both parts provide equivalent mechanical and electrical compatibility. Primary differences include: viewing angle (LTH5MM1152V: 30°, WP59EGW: 60°), red millicandela rating (LTH5MM1152V: 60mcd, WP59EGW: 40mcd), and moisture sensitivity level (LTH5MM1152V: MSL 4, WP59EGW: MSL 1). Selection depends on application requirements for visibility angle and brightness distribution.

Q: Are forward voltage differences between substitutes significant?

A: Forward voltage variations among the three parts (2.0V to 2.2V for green, 2.0V to 2.2V for red) fall within standard design tolerances for LED indicator circuits. Current-limiting resistor values may require minor adjustment to maintain consistent brightness, but direct substitution is functionally viable without circuit redesign.

Q: Do the substitute parts require PCB layout modifications?

A: No. Both LTH5MM1152V and WP59EGW maintain identical T-1 3/4 (5mm) through-hole radial package dimensions and lead configuration as the 4361H1/5. PCB footprints and mounting holes remain compatible without modification.

Q: What is the significance of the higher millicandela ratings in substitute parts?

A: The substitute parts (60mcd green and red for LTH5MM1152V, 60mcd green and 40mcd red for WP59EGW) provide enhanced brightness compared to the original 4361H1/5 (10mcd green, 6.3mcd red). This represents improved performance capability and does not require circuit modification. Existing designs will experience brighter indicator operation.

Q: Are there any storage or handling differences between the main part and substitutes?

A: The LTH5MM1152V carries MSL 4 (72-hour moisture sensitivity), while the WP59EGW carries MSL 1 (unlimited). The original 4361H1/5 specifies MSL 2 (1-year). For applications with extended storage requirements, the WP59EGW provides superior moisture tolerance. Standard ESD precautions apply to all parts.

Q: Do both substitute parts maintain regulatory compliance?

A: Yes. Both LTH5MM1152V and WP59EGW are ROHS3 compliant and REACH unaffected, matching the regulatory profile of the obsolete 4361H1/5. Both parts are suitable for applications requiring environmental and regulatory compliance documentation.