SLR-342DUTE7 Equivalent & Substitute Parts

Part Overview

The SLR-342DUTE7 is an orange diffused through-hole LED manufactured by Rohm Semiconductor, designed for discrete indication applications. This part is classified as Not For New Designs, making identification of active equivalent and substitute components essential for ongoing production support and design updates. The SLR-342 series provides a 2V forward voltage orange LED with 16mcd brightness in a radial package configuration.

Substiute Parts

SLR-342DUTE7

Rohm SemiconductorIn Stock: 937SLR-342DUTE7 Datasheet

Current PartRFQ

SLR-343DUT32

Rohm SemiconductorIn Stock: 965SLR-343DUT32 Datasheet

Parametric EquivalentRFQ

WP132XNC

KingbrightIn Stock: 910WP132XNC Datasheet

SimilarRFQ

WP710A10ND

KingbrightIn Stock: 1531WP710A10ND Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLR-342DUTE7 is determined by the following critical parameters:

Primary Substitution Criteria:

• Color: Orange
• Lens Transparency: Diffused
• Mounting Type: Through Hole
• Wavelength Range: 600-615nm (peak wavelength tolerance)
• Forward Voltage: 2.0V ±0.1V
• Millicandela Rating: 16-20mcd (brightness tolerance)
• Viewing Angle: 40-50° (acceptable range)
• Package Type: Radial through-hole configuration
• Compliance: ROHS3 Compliant, REACH Unaffected

Substitute Categories:

Parametric Equivalent: SLR-343DUT32 (Rohm Semiconductor) - Direct series upgrade with identical electrical specifications and Active product status.

Similar Alternatives: WP132XNC and WP710A10ND (Kingbright) - Functionally equivalent with minor parameter variations within acceptable engineering tolerances for orange LED indication applications.

Parameter Comparison

Engineering Selection Recommendations

SLR-343DUT32 (Rohm Semiconductor) is the primary recommended substitute. This part maintains identical electrical and optical specifications while offering Active product status, ensuring long-term availability and manufacturing support. Both parts are ROHS3 Compliant and REACH Unaffected, with equivalent compliance certifications.

WP710A10ND (Kingbright) is suitable for applications where diffused lens transparency and 40° viewing angle are required. This part operates at 2.05V forward voltage with 20mcd brightness, representing a minor increase in light output. The higher test current (20mA vs. 10mA) requires circuit verification to ensure compatibility with existing current-limiting designs.

WP132XNC (Kingbright) is applicable only where clear lens transparency is acceptable. This part features a 50° viewing angle and 20mcd brightness, making it suitable for applications requiring wider light distribution. The clear lens produces different optical characteristics compared to the diffused original.

All substitute parts maintain through-hole radial mounting compatibility and meet the same regulatory compliance standards as the original SLR-342DUTE7.

Frequently Asked Questions (FAQ)

Q: Can SLR-343DUT32 be used as a direct replacement for SLR-342DUTE7?

A: Yes. SLR-343DUT32 is a parametric equivalent with identical forward voltage (2V), test current (10mA), millicandela rating (16mcd), viewing angle (40°), and lens configuration (diffused, 3.10mm diameter). The primary difference is product status: SLR-343DUT32 is Active, while SLR-342DUTE7 is Not For New Designs. Physical dimensions are nearly identical (5.60mm vs. 5.40mm height), with no functional impact on standard through-hole PCB applications.

Q: What are the key differences between WP710A10ND and the original SLR-342DUTE7?

A: WP710A10ND maintains diffused lens transparency and 40° viewing angle but operates at 2.05V forward voltage (vs. 2V) with 20mA test current (vs. 10mA) and 20mcd brightness (vs. 16mcd). Circuit designs must accommodate the higher forward voltage and test current. Height is 5.90mm compared to 5.40mm. All other parameters—color, mounting type, package configuration, and compliance certifications—are compatible.

Q: Why is WP132XNC listed as a substitute if it has a clear lens instead of diffused?

A: WP132XNC is functionally equivalent for orange LED indication applications but with different optical characteristics. The clear lens produces a more focused light beam with higher brightness concentration (20mcd vs. 16mcd) and wider viewing angle (50° vs. 40°). This part is suitable only for applications where clear lens transparency is acceptable or preferred.

Q: Are all substitute parts ROHS3 Compliant?

A: Yes. SLR-343DUT32, WP132XNC, and WP710A10ND are all ROHS3 Compliant and REACH Unaffected, matching the compliance status of the original SLR-342DUTE7.

Q: What is the wavelength tolerance across these parts?

A: Peak wavelengths range from 605nm to 610nm across all parts, with Kingbright alternatives specifying 607nm. This 5nm variation is within standard orange LED manufacturing tolerances and does not affect functional performance in indication applications.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Physical compatibility is confirmed for all parts—all feature through-hole radial mounting with 3mm-3.10mm lens diameters and heights between 5.20mm and 5.90mm. However, circuit designs using WP710A10ND or WP132XNC must accommodate the higher forward voltage (2.05V) and test current (20mA) specifications. Existing current-limiting resistor values should be recalculated to maintain proper LED operation.