4301H1/5 LED Green/Red Diffused T-1 3/4 Through Hole Equivalent & Substitute Parts

Part Overview

The 4301H1/5 is a bidirectional green/red diffused LED indicator manufactured by Visual Communications Company (VCC). This component features a 5mm T-1 3/4 form factor with through-hole radial mounting, designed for dual-color LED indication applications. The part operates at 2.2V forward voltage for both green and red emitters with a 10mA test current and delivers 6mcd brightness in each color.

The 4301H1/5 carries a "Not For New Designs" product status, indicating that VCC has discontinued active development and support for this component. This status necessitates identification of equivalent substitute parts that maintain functional compatibility while offering active manufacturer support and continued availability.

Substiute Parts

4301H1/5

Visual Communications Company - VCCIn Stock: 40294301H1/5 Datasheet

Current PartRFQ

LTL-293SJW

Lite-On Inc.In Stock: 19407LTL-293SJW Datasheet

SimilarRFQ

WP59EGW

KingbrightIn Stock: 12372WP59EGW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4301H1/5 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Dual green/red color configuration
• Through-hole radial mounting
• 5mm T-1 3/4 lens form factor
• Diffused lens transparency
• Round domed lens style
• RoHS3 compliance
• MSL 1 rating

Secondary Compatibility Considerations:

• Forward voltage within acceptable operating range (2.0V to 2.2V for green; 1.8V to 2.2V for red)
• Test current compatibility (10mA to 20mA)
• Viewing angle (50° to 60°)
• Peak wavelength alignment (green 565nm to 569nm; red 617nm to 660nm)
• Maximum height tolerance (8.60mm to 11.35mm)

The substitute parts LTL-293SJW and WP59EGW meet the primary compatibility criteria. However, configuration differences exist: LTL-293SJW maintains bidirectional configuration matching the original part, while WP59EGW uses common cathode configuration with three leads, requiring circuit design verification.

Parameter Comparison

Engineering Selection Recommendations

LTL-293SJW (Lite-On Inc.) - Primary Substitute

The LTL-293SJW is the recommended substitute for direct replacement applications. This part maintains bidirectional configuration identical to the 4301H1/5, ensuring circuit compatibility without modification. Both components operate within compatible voltage ranges (green 2.1V vs. 2.2V; red 1.8V vs. 2.2V) and support through-hole radial mounting in the 5mm T-1 3/4 form factor. The LTL-293SJW carries Active product status with ROHS3 compliance and MSL 1 rating, matching the original part's environmental specifications. The increased brightness ratings (40mcd green, 90mcd red versus 6mcd each) provide enhanced visibility without requiring circuit redesign. Height differential of 0.04mm is negligible for PCB layout considerations.

WP59EGW (Kingbright) - Alternative Substitute

The WP59EGW serves as an alternative substitute for applications where common cathode configuration is acceptable. This part features common cathode topology with three leads, differing from the bidirectional configuration of the 4301H1/5. Circuit redesign is required to accommodate the different lead configuration and cathode connection. Forward voltage specifications (2.2V green, 2.0V red) align closely with the original part. The WP59EGW provides higher green brightness (60mcd) and moderate red brightness (40mcd). Maximum height of 11.35mm exceeds the original 8.64mm specification and requires verification against PCB clearance constraints. This part maintains ROHS3 compliance and MSL 1 rating.

Compliance and Regulatory Alignment

Both substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the original 4301H1/5 specifications. Moisture sensitivity levels remain at MSL 1 (Unlimited) for all three components, ensuring equivalent handling and storage requirements. Both substitutes support continued component availability through active manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the LTL-293SJW directly replace the 4301H1/5 without circuit modification?

A: Yes. The LTL-293SJW maintains bidirectional configuration and through-hole radial mounting identical to the 4301H1/5. Forward voltage specifications (2.1V green, 1.8V red) fall within acceptable operating ranges for the original design. No circuit modification is required for direct substitution.

Q: What is the primary difference between the LTL-293SJW and WP59EGW substitutes?

A: Configuration topology differs between the two parts. The LTL-293SJW maintains bidirectional configuration matching the original 4301H1/5, while the WP59EGW uses common cathode configuration with three leads. This difference requires circuit design verification for the WP59EGW. Additionally, the WP59EGW has a maximum height of 11.35mm compared to 8.64mm for the original part, requiring PCB clearance validation.

Q: Are the brightness differences between the original and substitute parts significant?

A: The substitute parts provide higher brightness ratings than the original 4301H1/5. The LTL-293SJW delivers 40mcd green and 90mcd red versus 6mcd each for the original. The WP59EGW provides 60mcd green and 40mcd red. These increases enhance visibility and do not require circuit modification if the original design accommodated the 10mA test current. Current limiting resistor values may be adjusted to optimize brightness if desired.

Q: Do the substitute parts meet the same environmental and compliance standards?

A: Yes. Both LTL-293SJW and WP59EGW maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity levels, matching the original 4301H1/5 specifications.

Q: What viewing angle differences exist between the parts?

A: The original 4301H1/5 specifies a 50° viewing angle, while both substitute parts provide 60° viewing angles. The wider viewing angle of the substitutes enhances visibility across a broader range of observation positions without requiring circuit modification.

Q: Are there wavelength differences that affect color perception?

A: Peak wavelengths vary slightly across the three parts. Green wavelengths range from 565nm to 568nm, and red wavelengths range from 627nm to 660nm. These variations fall within standard color perception tolerances for green and red LED indicators and do not require circuit modification. Visual color differences are negligible in typical applications.

Q: What is the significance of the "Not For New Designs" status on the original part?

A: This status indicates that VCC has discontinued active development and support for the 4301H1/5. Substitution with an Active status part (LTL-293SJW or WP59EGW) ensures continued component availability, manufacturer support, and access to technical documentation for future production runs.

Q: Can the WP59EGW be used in applications originally designed for the 4301H1/5?

A: The WP59EGW can be used if circuit design accommodates common cathode configuration with three leads. The original bidirectional configuration differs from the WP59EGW's common cathode topology, requiring circuit verification. Additionally, the WP59EGW's maximum height of 11.35mm must be validated against PCB layout constraints.