MV57642C4R0 Equivalent & Substitute Parts Reference

Part Overview

The MV57642C4R0 is a red diffused LED indicator manufactured by Everlight Electronics Co Ltd, designed for through-hole mounting applications. This T-1 (3mm) package LED operates at 2V forward voltage with a 4mcd brightness rating and 90° viewing angle, suitable for standard indication circuits requiring low-current operation at 10mA test current. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, inventory limitations, or when design flexibility permits selection from multiple qualified manufacturers offering compatible electrical and mechanical characteristics.

Key Parameters

Parameter	MV57642C4R0 Specification
Lens Size	3mm, T-1
Lens Transparency	Diffused
Color	Red
Voltage - Forward (Vf) Typical	2V
Current - Test	10mA
Millicandela Rating	4mcd
Viewing Angle	90°
Mounting Type	Through Hole
Package / Case	Radial
Wavelength - Peak	635nm
Height (Max)	6.30mm
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MV57642C4R0 is determined by strict alignment with the following critical parameters:

Primary Compatibility Criteria:

Lens size: 3mm or 3.10mm diameter (T-1 package class)
Lens transparency: Diffused
Color: Red
Mounting type: Through Hole, Radial configuration
Forward voltage: 2V nominal (±0.2V tolerance acceptable for 2V-rated circuits)
Package / Case: Radial

Secondary Consideration Parameters:

Millicandela rating: 4mcd baseline (higher ratings acceptable if circuit design permits)
Viewing angle: 90° baseline (wider angles acceptable; narrower angles require circuit validation)
Wavelength - Peak: 635nm baseline (620nm–635nm range acceptable for red indication)
Height: 6.30mm baseline (±1.0mm variation acceptable for standard PCB layouts)
Test current: 10mA baseline (up to 20mA acceptable if power budget permits)

Compliance Requirements:

RoHS3 compliance mandatory
MSL 1 (Unlimited) required
ECCN EAR99 classification maintained

Substitute parts meeting all primary criteria and maintaining compliance certifications are classified as Parametric Equivalents or Similar Parts based on deviation magnitude in secondary parameters.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Lens Size	Lens Transparency	Color	Vf (Typ)	Test Current	mcd Rating	Viewing Angle	Peak Wavelength	Height (Max)	Product Status	RoHS3
MV57642C4R0	Everlight Electronics	3mm, T-1	Diffused	Red	2V	10mA	4mcd	90°	635nm	6.30mm	Active	Yes
HLMP1302	onsemi	3mm, T-1	Diffused	Red	2V	10mA	4mcd	90°	635nm	6.30mm	Obsolete	No Data
LTL-1CHE	Lite-On Inc.	3.10mm	Diffused	Red	2V	20mA	12.6mcd	60°	635nm	5.20mm	Active	Yes
SLI-343U8R3F	Rohm Semiconductor	3.10mm	Diffused	Red	2.2V	20mA	220mcd	40°	620nm	5.60mm	Active	Yes
SLI-343U8RC3F	Rohm Semiconductor	3.10mm	Clear	Red	2.2V	20mA	330mcd	40°	620nm	5.60mm	Active	Yes
SLI-343V8R3F	Rohm Semiconductor	3.10mm	Diffused	Red	2.2V	20mA	330mcd	40°	630nm	5.40mm	Active	Yes
SLI-343V8RC3F	Rohm Semiconductor	3.10mm	Diffused	Red	2.2V	20mA	330mcd	40°	630nm	5.60mm	Active	Yes
SLR-343VR3F	Rohm Semiconductor	3.10mm	Diffused	Red	2V	10mA	16mcd	40°	630nm	5.60mm	Active	Yes
SSL-LX30FT4ID	Lumex Opto/Components	3mm, T-1	Diffused	Red	2V	20mA	15mcd	100°	635nm	6.70mm	Active	Yes
WP132XID	Kingbright	3mm, T-1	Diffused	Red	2V	20mA	16mcd	60°	627nm	5.20mm	Active	Yes
WP3A10ID	Kingbright	3mm, T-1	Diffused	Red	2V	20mA	15mcd	60°	627nm	5.00mm	Active	Yes

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement):

HLMP1302 (onsemi) matches all electrical and mechanical parameters of the MV57642C4R0 with identical 2V forward voltage, 10mA test current, 4mcd brightness, 90° viewing angle, and 6.30mm height. However, HLMP1302 is classified as obsolete product status. Selection of this part requires confirmation of long-term availability and supply chain continuity. Use only when inventory reserves are confirmed or when design documentation explicitly permits obsolete component selection.

Active Production Equivalents (Recommended for New Designs):

SLR-343VR3F (Rohm Semiconductor, EXCELED™ series) provides the closest match among active production parts. It maintains 2V forward voltage and 10mA test current identical to the MV57642C4R0. The 16mcd brightness rating exceeds the 4mcd baseline but remains within acceptable indication circuit parameters. The 40° viewing angle is narrower than the 90° baseline; circuit design must validate this constraint for the intended application. Height of 5.60mm is within acceptable tolerance. RoHS3 compliance and MSL 1 rating are confirmed.

SSL-LX30FT4ID (Lumex Opto/Components) maintains 2V forward voltage, 3mm T-1 package, and 635nm peak wavelength matching the primary part. The 15mcd brightness and 100° viewing angle exceed baseline specifications, suitable for applications requiring wider light distribution. Height of 6.70mm is slightly elevated but acceptable for standard PCB layouts. RoHS3 and REACH compliance confirmed.

WP132XID and WP3A10ID (Kingbright) both operate at 2V with 3mm T-1 packages and 627nm peak wavelength within the acceptable red spectrum range. Both parts support 20mA test current and provide 15–16mcd brightness. Viewing angles of 60° represent a compromise between the narrow 40° and wide 90° options. Heights of 5.20mm and 5.00mm are within tolerance. RoHS3 and REACH compliance confirmed.

Parts Requiring Circuit Validation:

LTL-1CHE (Lite-On Inc.) operates at 2V with 12.6mcd brightness and 60° viewing angle. The 20mA test current exceeds the 10mA baseline; power budget and current-limiting resistor design must be re-evaluated. Height of 5.20mm is acceptable.

SLI-343 series parts (Rohm Semiconductor, EXCELED™) operate at 2.2V forward voltage, representing a 0.2V increase from the 2V baseline. These parts are suitable only for circuits with voltage headroom or when the 0.2V increase does not compromise system performance. The 20mA test current and significantly higher brightness ratings (220–330mcd) require circuit redesign. Viewing angles of 40° are narrower than baseline. Use only when application requirements explicitly permit higher brightness and narrower viewing angle.

SLI-343U8RC3F features clear lens transparency instead of diffused; this optical characteristic change alters light distribution and intensity profile. Use only when clear lens properties are functionally required.

Frequently Asked Questions (FAQ)

Q: Can HLMP1302 be used as a direct replacement for MV57642C4R0?

A: HLMP1302 is electrically and mechanically identical to MV57642C4R0 with matching 2V forward voltage, 10mA test current, 4mcd brightness, 90° viewing angle, and 6.30mm height. However, HLMP1302 is classified as obsolete product status. Direct replacement is possible only if long-term supply availability is confirmed and design documentation permits obsolete component use.

Q: What is the primary difference between diffused and clear lens options?

A: Diffused lens transparency scatters light across a wider intensity distribution, reducing peak brightness but improving visibility from off-axis angles. Clear lens concentrates light output, producing higher peak brightness with narrower viewing angle. The MV57642C4R0 uses diffused lens. Substitution with clear lens parts (such as SLI-343U8RC3F) changes optical characteristics and requires application validation.

Q: Can I substitute a part with higher millicandela rating?

A: Parts with higher mcd ratings (such as SLI-343 series at 220–330mcd versus 4mcd baseline) can be substituted only if the circuit design accommodates increased brightness. Higher brightness may cause visual glare or require resistor value adjustment. Verify that the application does not depend on the specific 4mcd intensity level for proper operation.

Q: What does the 0.2V difference in forward voltage mean for SLI-343 series parts?

A: SLI-343 series parts operate at 2.2V versus the 2V baseline of MV57642C4R0. This 0.2V increase requires additional voltage headroom in the power supply or current-limiting circuit. Substitution is acceptable only if the circuit design includes sufficient voltage margin. For circuits with tight voltage budgets, this difference may cause insufficient LED brightness or circuit malfunction.

Q: Are all substitute parts RoHS3 compliant?

A: All active production substitute parts listed (LTL-1CHE, SLI-343 series, SLR-343VR3F, SSL-LX30FT4ID, WP132XID, WP3A10ID) are confirmed RoHS3 compliant. HLMP1302 (obsolete) does not include RoHS3 compliance data in the provided specifications.

Q: What viewing angle should I select?

A: The MV57642C4R0 baseline is 90°. Substitute parts range from 40° (narrow, concentrated light) to 100° (wide distribution). Select based on application requirements: narrow angles (40°) for focused indication in specific directions; wide angles (90°–100°) for visibility from multiple viewing positions. Verify that the selected viewing angle does not compromise the intended indication function.

Q: Can I use WP132XID or WP3A10ID as direct replacements?

A: WP132XID and WP3A10ID are suitable substitutes with 2V forward voltage, 3mm T-1 packages, and 15–16mcd brightness. Both maintain RoHS3 compliance and MSL 1 rating. The 60° viewing angle is narrower than the 90° baseline but wider than the 40° minimum. The 20mA test current exceeds the 10mA baseline; verify that the circuit power budget accommodates this increase. Heights of 5.20mm and 5.00mm are within acceptable tolerance.

Q: What is the difference between SLR-343VR3F and SLI-343V8RC3F?

A: SLR-343VR3F operates at 2V with 16mcd brightness and 40° viewing angle, matching the voltage baseline of MV57642C4R0. SLI-343V8RC3F operates at 2.2V with 330mcd brightness and 40° viewing angle, requiring circuit redesign for higher voltage and brightness. SLR-343VR3F is the preferred choice for minimal circuit modification.

Q: Are there any height restrictions for PCB layout?

A: The MV57642C4R0 has a maximum height of 6.30mm. Substitute parts range from 5.00mm to 6.70mm. Most standard PCB layouts accommodate this variation. Verify clearance for parts with 6.70mm height (SSL-LX30FT4ID) if the PCB design includes components or enclosure features in close proximity to the LED mounting location.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 indicates unlimited shelf life without moisture-related degradation. All listed parts maintain MSL 1 rating, confirming that moisture sensitivity is not a constraint for storage, handling, or substitution decisions.

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