MV53641 LED Yellow Diffused T-1 Through Hole Equivalent & Substitute Parts

Part Overview

The MV53641 is an active yellow diffused LED indication component manufactured by Everlight Electronics Co Ltd, designed for through-hole mounting applications. This T-1 form factor LED operates at 2.1V forward voltage with a 3mcd brightness rating and 90° viewing angle, suitable for standard indicator applications requiring yellow light emission at 585nm peak wavelength. The component is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified to support design flexibility, inventory optimization, and supply chain continuity. Substitutes are selected based on matching electrical characteristics, mechanical compatibility, and optical performance within acceptable tolerance ranges for the T-1 through-hole LED category.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Manufacturer Part Number	MV53641	—	Primary identifier
Manufacturer	Everlight Electronics Co Ltd	—	Source reference
Color	Yellow	—	Critical for optical function
Lens Transparency	Diffused	—	Optical characteristic
Lens Size	3mm, T-1	—	Mechanical compatibility
Voltage - Forward (Vf) Typical	2.1	V	Circuit design parameter
Current - Test	10	mA	Operating condition reference
Millicandela Rating	3	mcd	Brightness specification
Viewing Angle	90	°	Optical distribution
Wavelength - Peak	585	nm	Color specification
Mounting Type	Through Hole	—	PCB assembly method
Package / Case	Radial	—	Lead configuration
Height (Max)	6.30	mm	Mechanical clearance
RoHS Status	ROHS3 Compliant	—	Regulatory compliance
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—	Storage and handling

Substitute Part Grouping Explanation

Substitute parts for the MV53641 are identified based on the following substitution criteria:

Primary Matching Criteria:

Color: Yellow (optical function requirement)
Lens Transparency: Diffused (light distribution characteristic)
Mounting Type: Through Hole (assembly compatibility)
Lens Size: 3mm, T-1 form factor (mechanical fit)
Package Type: Radial (lead configuration)

Secondary Electrical Compatibility Criteria:

Forward Voltage (Vf): 2.0V to 2.2V range (circuit design tolerance)
Current Rating: 10mA to 20mA test conditions (operational envelope)
Wavelength: 585nm to 590nm (yellow spectrum range)

Regulatory Compliance:

RoHS3 Compliant status required
MSL 1 (Unlimited) moisture sensitivity level

Substitutes are grouped into two categories:

Category A - Direct Yellow Diffused T-1 Substitutes: Parts matching all primary criteria with yellow diffused lens, T-1 form factor, and through-hole mounting. These include Rohm Semiconductor EXCELED™ series (SLI-343Y8Y3F) and Kingbright components (WP3A10YD, WP132XYD).

Category B - Alternative Yellow Diffused Substitutes: Parts with yellow diffused characteristics but with variations in brightness rating, viewing angle, or voltage that remain within acceptable operational parameters for general indication applications.

Parameter Comparison

Part Number	Manufacturer	Color	Lens Transparency	Vf (Typ) V	Current Test mA	mcd Rating	Viewing Angle °	Wavelength nm	Height Max mm	Lens Size
MV53641	Everlight	Yellow	Diffused	2.1	10	3	90	585	6.30	3mm T-1
SLI-343Y8Y3F	Rohm	Yellow	Diffused	2.2	20	470	40	590	5.60	3.10mm
WP3A10YD	Kingbright	Yellow	Diffused	2.1	20	15	60	588	5.00	3mm T-1
WP132XYD	Kingbright	Yellow	Diffused	2.1	20	15	60	588	5.20	3mm T-1
SLR-343YY3F	Rohm	Yellow	Diffused	2.1	10	10	40	587	5.60	3.10mm
SLI-343Y8C3F	Rohm	Yellow	Clear	2.2	20	680	40	590	5.60	3.10mm
SLI-343D8U3F	Rohm	Orange	Diffused	2.2	20	470	40	605	5.60	3.10mm
WP132XND	Kingbright	Orange	Diffused	2.05	20	16	60	602	5.20	3mm T-1
WP424EDT	Kingbright	Orange	Diffused	2.0	20	4	100	617	6.00	3mm T-1
SLR-343DU3F	Rohm	Orange	Diffused	2.0	10	16	40	605	5.40	3.10mm

Engineering Selection Recommendations

Primary Substitutes (Yellow Diffused, Direct Compatibility):

SLI-343Y8Y3F (Rohm Semiconductor EXCELED™ series) is the closest functional equivalent. This part maintains yellow diffused lens characteristics with matching T-1 form factor and through-hole mounting. Forward voltage is 2.2V (0.1V higher than MV53641), operating within standard circuit tolerance. The 470mcd brightness rating represents a significant increase from 3mcd, suitable for applications where enhanced visibility is acceptable. Viewing angle reduces from 90° to 40°, concentrating light output. Peak wavelength at 590nm remains within yellow spectrum. Height of 5.60mm is 0.70mm shorter than MV53641, compatible with standard PCB clearances. ROHS3 compliant with MSL 1 rating. Inventory availability: 8,965 units.

WP3A10YD (Kingbright) provides electrical and optical compatibility with identical 2.1V forward voltage and 588nm wavelength. T-1 form factor and through-hole mounting match MV53641 mechanical requirements. Brightness rating of 15mcd exceeds MV53641 by 12mcd. Viewing angle of 60° is narrower than MV53641's 90°. Height of 5.00mm provides additional clearance margin. ROHS3 compliant with MSL 1 rating. Inventory availability: 11,922 units.

WP132XYD (Kingbright) offers identical 2.1V forward voltage and 588nm wavelength matching MV53641 electrical specifications. Yellow diffused lens with T-1 form factor and through-hole mounting provide direct mechanical compatibility. Brightness of 15mcd and 60° viewing angle differ from original specifications. Height of 5.20mm is within acceptable clearance range. ROHS3 compliant with MSL 1 rating. Inventory availability: 3,485 units.

SLR-343YY3F (Rohm Semiconductor SLR-343 series) maintains 2.1V forward voltage and 587nm wavelength alignment with MV53641. Yellow diffused lens with through-hole radial mounting provides functional compatibility. Brightness of 10mcd and 40° viewing angle represent moderate changes from original. Height of 5.60mm is acceptable for standard applications. ROHS3 compliant with MSL 1 rating. Inventory availability: 2,935 units.

Secondary Substitutes (Alternative Characteristics):

SLI-343Y8C3F (Rohm EXCELED™) differs from MV53641 in lens transparency (clear vs. diffused), resulting in concentrated light output with 680mcd brightness and 40° viewing angle. Forward voltage of 2.2V and 590nm wavelength remain compatible. Suitable for applications requiring higher intensity with narrower beam. ROHS3 compliant. Inventory: 1,376 units.

Orange Diffused Alternatives (SLI-343D8U3F, WP132XND, WP424EDT, SLR-343DU3F) are listed as substitutes in the MV53641 specification but represent color variation from yellow to orange. These parts maintain diffused lens and through-hole mounting characteristics. Selection of orange variants requires confirmation that color change is acceptable for the application. All are ROHS3 compliant with MSL 1 rating.

Regulatory and Compliance Status: All listed substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching MV53641 regulatory requirements. No additional handling or storage modifications are required for substitution.

Frequently Asked Questions (FAQ)

Q1: Can SLI-343Y8Y3F directly replace MV53641 in existing designs?

A: SLI-343Y8Y3F is mechanically and electrically compatible as a through-hole T-1 yellow diffused LED. Forward voltage increases from 2.1V to 2.2V, requiring circuit verification if voltage tolerance is critical. Brightness increases from 3mcd to 470mcd; applications sensitive to light intensity must be evaluated. Viewing angle narrows from 90° to 40°, affecting light distribution. Height reduction of 0.70mm is compatible with standard PCB clearances. Substitution is feasible with design review.

Q2: What is the primary difference between WP3A10YD and WP132XYD?

A: Both parts are Kingbright yellow diffused T-1 LEDs with identical 2.1V forward voltage and 588nm wavelength. Primary difference is maximum height: WP3A10YD is 5.00mm versus WP132XYD at 5.20mm. Both provide 15mcd brightness and 60° viewing angle. Selection depends on available PCB clearance. WP3A10YD offers greater height margin; WP132XYD provides additional mechanical stability if height is not constrained.

Q3: Why is SLI-343Y8C3F listed as a substitute if it has clear lens instead of diffused?

A: SLI-343Y8C3F maintains yellow color, T-1 form factor, and through-hole mounting compatibility. Clear lens (versus diffused) concentrates light output to 680mcd with 40° viewing angle, compared to MV53641's 3mcd and 90° angle. This part is suitable for applications requiring higher intensity with directional light output. Substitution requires confirmation that concentrated beam pattern is acceptable for the intended application.

Q4: Are orange diffused LEDs acceptable substitutes for yellow diffused MV53641?

A: Orange diffused parts (SLI-343D8U3F, WP132XND, WP424EDT, SLR-343DU3F) are listed in MV53641 substitute documentation but represent color change from yellow (585nm) to orange (602nm-617nm). These parts maintain diffused lens and through-hole mounting characteristics. Substitution is only acceptable if application design permits color variation. Optical function and user interface requirements must be reviewed before selection.

Q5: What are the key electrical parameters to verify when substituting MV53641?

A: Critical electrical parameters are forward voltage (Vf) and test current. MV53641 operates at 2.1V with 10mA test current. Substitutes range from 2.0V to 2.2V forward voltage and 10mA to 20mA test current. Circuit design must accommodate voltage variation within the 0.2V range. Higher test current (20mA) in some substitutes indicates increased brightness; verify that current-limiting resistor values remain appropriate. Wavelength variation (585nm to 590nm) is acceptable within yellow spectrum.

Q6: How does viewing angle affect substitution suitability?

A: MV53641 has 90° viewing angle, providing wide light distribution. Substitutes range from 40° to 100° viewing angle. Narrower angles (40°) concentrate light output, suitable for directional indication. Wider angles (100°) provide broader distribution. Application requirements determine acceptable range. If indicator must be visible from multiple angles, 90° or wider is preferred. If directional indication is acceptable, 40°-60° angles are suitable.

Q7: Are all listed substitutes ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance matching MV53641 regulatory status. Moisture sensitivity level (MSL 1 - Unlimited) is consistent across all parts, requiring no changes to storage or handling procedures. No additional regulatory documentation is required for substitution within this parts list.

Q8: What inventory considerations apply to substitute selection?

A: Inventory availability varies significantly. WP3A10YD has highest availability (11,922 units), followed by SLI-343Y8Y3F (8,965 units). Lower availability parts include SLR-343YY3F (2,935 units) and WP132XND (2,998 units). Supply chain continuity may favor higher-inventory substitutes. Bulk packaging is standard for all parts listed.

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