MV57642MP4A Equivalent & Substitute Parts Reference

Part Overview

The MV57642MP4A 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 maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical form factor, and operational parameters that ensure functional interchangeability within the specified application envelope.

Key Parameters

Parameter	MV57642MP4A Value	Substitution Relevance
Color	Red	Critical - Must match for indication function
Lens Transparency	Diffused	Critical - Affects light distribution and appearance
Lens Size / Package	3mm T-1 / Radial	Critical - Determines PCB footprint compatibility
Voltage - Forward (Vf) Typical	2V	Critical - Affects circuit design and current limiting
Current - Test	10mA	Important - Baseline operating condition
Millicandela Rating	4mcd	Important - Brightness level for indication visibility
Viewing Angle	90°	Important - Determines visibility cone
Wavelength - Peak	635nm	Important - Red spectrum definition
Mounting Type	Through Hole	Critical - PCB assembly method
Height (Max)	6.30mm	Important - Clearance and form factor
RoHS Status	ROHS3 Compliant	Important - Regulatory compliance

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on parameter alignment with MV57642MP4A:

Parametric Equivalent (Obsolete Status): HLMP1302 from onsemi matches all critical electrical and mechanical parameters identically: 2V forward voltage, 4mcd brightness, 90° viewing angle, 3mm T-1 diffused red lens, and 6.30mm maximum height. This part is functionally identical but carries Obsolete product status, limiting its use to legacy system maintenance or long-term inventory applications.

Similar Substitutes (Active Status): The remaining parts share the core form factor (3mm T-1 through-hole red diffused LED) and mounting compatibility but exhibit variations in one or more electrical parameters. These variations fall within acceptable ranges for indication applications:

Forward Voltage Tolerance: Parts rated at 2.2V (Rohm SLI-343 series) operate within typical LED manufacturing variance and remain compatible with standard current-limiting circuits designed for 2V operation.
Brightness Variation: Millicandela ratings range from 4mcd to 330mcd. Higher brightness parts (SLI-343U8R3F at 220mcd, SLI-343V8RC3F at 330mcd) provide enhanced visibility; lower brightness parts maintain original specification.
Viewing Angle Variation: Angles range from 40° to 100°. Narrower angles (40°) concentrate light intensity; wider angles (100°) provide broader visibility.
Wavelength Variation: Peak wavelengths range from 617nm to 635nm, all within the red spectrum for visual indication purposes.
Test Current Variation: Parts tested at 20mA versus 10mA reflect different operating points but do not prevent substitution in fixed-current applications.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and through-hole radial package configuration.

Parameter Comparison

Part Number	Manufacturer	Status	Vf (Typ)	Test Current	Brightness (mcd)	Viewing Angle	Wavelength Peak (nm)	Lens Transparency	Height Max (mm)	RoHS
MV57642MP4A	Everlight	Active	2V	10mA	4	90°	635	Diffused	6.30	ROHS3
HLMP1302	onsemi	Obsolete	2V	10mA	4	90°	635	Diffused	6.30	ROHS3
LTL-1CHE	Lite-On	Active	2V	20mA	12.6	60°	635	Diffused	5.20	ROHS3
SLI-343U8R3F	Rohm	Active	2.2V	20mA	220	40°	—	Diffused	5.60	ROHS3
SLI-343U8RC3F	Rohm	Active	2.2V	20mA	330	40°	—	Clear	5.60	ROHS3
SLI-343V8R3F	Rohm	Active	2.2V	20mA	330	40°	630	Diffused	5.40	ROHS3
SLI-343V8RC3F	Rohm	Active	2.2V	20mA	330	40°	—	Diffused	5.60	ROHS3
SLR-343VR3F	Rohm	Active	2V	10mA	16	40°	—	Diffused	5.60	ROHS3
SSL-LX30FT4ID	Lumex	Active	2V	20mA	15	100°	635	Diffused	6.70	ROHS3
WP132XID	Kingbright	Active	2V	20mA	16	60°	627	Diffused	5.20	ROHS3
WP3A10ID	Kingbright	Active	2V	20mA	15	60°	627	Diffused	5.00	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance): HLMP1302 provides exact parameter matching to MV57642MP4A. However, its Obsolete product status restricts selection to applications where long-term availability is not a design requirement. Use this part only when legacy system compatibility or existing inventory constraints mandate identical specifications.

For Active Production Applications: SLR-343VR3F from Rohm Semiconductor is the preferred substitute among active parts. It maintains identical forward voltage (2V) and test current (10mA) as the original part, ensuring circuit compatibility without redesign. Brightness increases from 4mcd to 16mcd, providing improved visibility margin. Viewing angle narrows to 40°, concentrating light intensity for focused indication applications. All ROHS3 compliance and MSL 1 ratings are maintained.

For Enhanced Brightness Requirements: SLI-343V8RC3F (Rohm EXCELED™ series) delivers 330mcd brightness with diffused lens transparency. Forward voltage increases to 2.2V and test current to 20mA, requiring circuit verification for current-limiting resistor adjustment. Viewing angle of 40° concentrates light output. This part suits applications requiring high-visibility indication in ambient light conditions.

For Wide-Angle Visibility: SSL-LX30FT4ID from Lumex provides 100° viewing angle, the widest among substitutes, while maintaining 2V forward voltage and 635nm peak wavelength matching the original specification. Brightness of 15mcd and 20mA test current provide adequate visibility across a broad angular range. Maximum height of 6.70mm requires clearance verification.

For Cost-Optimized High-Volume Production: WP132XID from Kingbright offers 16mcd brightness, 2V forward voltage, and 60° viewing angle at high inventory availability (44,764 pcs). Peak wavelength of 627nm remains within red spectrum. Test current of 20mA and 5.20mm height provide compact form factor.

All recommended substitutes carry Active product status and ROHS3 compliance, ensuring regulatory alignment and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can HLMP1302 be used as a direct replacement for MV57642MP4A? A: Yes, HLMP1302 is a parametric equivalent with identical electrical and mechanical specifications. However, its Obsolete product status means it is no longer in active production. Use this part only for legacy system maintenance or when existing inventory is available. For new designs, select an Active status substitute.

Q: What is the difference between diffused and clear lens transparency in the substitute parts? A: Diffused lenses scatter light across a wider area, creating a softer glow suitable for general indication. Clear lenses concentrate light output, producing higher brightness intensity in the direct viewing direction. SLI-343U8RC3F uses a clear lens and delivers 330mcd brightness compared to 220mcd for the diffused SLI-343U8R3F variant. Select based on desired light distribution and visibility requirements.

Q: Do parts with 2.2V forward voltage require circuit modifications? A: Parts rated at 2.2V (Rohm SLI-343 series) operate within standard LED manufacturing tolerance. In fixed-current applications using current-limiting resistors, the 0.2V difference is absorbed by the resistor voltage drop. Verify that the power supply voltage and resistor values accommodate the slightly higher forward voltage. In constant-current driver circuits, no modification is required.

Q: How does viewing angle affect part selection? A: Viewing angle determines the cone of light visibility. Narrow angles (40°) concentrate brightness for focused indication in specific directions. Wide angles (90°-100°) provide visibility across a broader area. Select based on application requirements: narrow angles for directional indicators, wide angles for omnidirectional visibility. MV57642MP4A specifies 90°; substitutes range from 40° to 100°.

Q: Are all substitute parts RoHS3 compliant? A: Yes, all listed substitute parts carry ROHS3 Compliant status, matching the original MV57642MP4A specification. All parts also maintain MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly and storage conditions.

Q: What is the significance of millicandela (mcd) rating differences? A: Millicandela measures luminous intensity. MV57642MP4A is rated at 4mcd; substitutes range from 4mcd to 330mcd. Higher mcd ratings provide greater brightness for improved visibility in ambient light. Lower mcd ratings consume less power and produce softer indication. Select based on visibility requirements and power budget constraints.

Q: Can I substitute a part with different test current (10mA vs. 20mA)? A: Test current indicates the operating point at which brightness is measured. Parts tested at 20mA typically deliver higher brightness than those tested at 10mA. In applications using fixed current-limiting resistors, the actual operating current is determined by the circuit design, not the part's test current rating. Verify that the selected part's forward voltage is compatible with your circuit's power supply and resistor values.

Q: Which substitute offers the best compatibility with existing designs? A: SLR-343VR3F from Rohm provides the highest compatibility: identical 2V forward voltage and 10mA test current as MV57642MP4A, requiring no circuit modifications. Brightness increases to 16mcd, providing improved visibility margin. This part is recommended for direct substitution in active production designs.

Q: What is the maximum height consideration for PCB clearance? A: MV57642MP4A specifies 6.30mm maximum height. Most substitutes range from 5.00mm to 6.70mm. Verify clearance with your PCB layout and enclosure design. SSL-LX30FT4ID at 6.70mm exceeds the original height; confirm adequate space before selection. Shorter parts (5.00mm-5.60mm) provide additional clearance margin.

Q: Are wavelength differences (617nm to 635nm) significant for indication applications? A: All listed wavelengths fall within the red spectrum (600-700nm) and are visually indistinguishable for indication purposes. Wavelength differences reflect manufacturing variations among suppliers. For color-critical applications requiring specific red hue, verify wavelength specification with the end-use requirement. For standard indication, wavelength variation is not a limiting factor.

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