VLMK3102-GS08 Equivalent & Substitute Parts

Part Overview

The VLMK3102-GS08 is a red LED indication component manufactured by Vishay Semiconductor Opto Division, currently in active product status. This 2-SMD, J-Lead surface mount LED operates at a forward voltage of 1.9V and delivers 39 millicandela at 10mA test current. The component features a clear lens with 120° viewing angle and 630nm dominant wavelength, housed in a compact 3.00mm × 2.80mm × 1.85mm package. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications align with the original specification.

Substiute Parts

VLMK3102-GS08
Vishay Semiconductor Opto DivisionIn Stock: 18835VLMK3102-GS08 Datasheet
VLMK3102-GS08
Current Part
VLMD31M2P1-GS08
Vishay Semiconductor Opto DivisionIn Stock: 3118VLMD31M2P1-GS08 Datasheet
VLMD31M2P1-GS08
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Vishay Semiconductor Opto Division
Color Red
Lens Transparency Clear
Millicandela Rating 39mcd
Lens Style Round with Flat Top
Lens Size 2.40mm Dia
Voltage - Forward (Vf) (Typ) 1.9V
Current - Test 10mA
Viewing Angle 120°
Mounting Type Surface Mount
Wavelength - Dominant 630nm
Package / Case 2-SMD, J-Lead
Size / Dimension 3.00mm L × 2.80mm W
Height (Max) 1.85mm
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2A (4 Weeks)
REACH Status REACH Unaffected

Substitute Part Grouping Explanation

Substitution eligibility for the VLMK3102-GS08 is determined by strict alignment of the following parameters:

  • Color: Red
  • Lens Transparency: Clear
  • Lens Style: Round with Flat Top
  • Lens Size: 2.40mm Dia
  • Mounting Type: Surface Mount
  • Package / Case: 2-SMD, J-Lead
  • Size / Dimension: 3.00mm L × 2.80mm W
  • Height (Max): 1.85mm
  • RoHS Status: ROHS3 Compliant
  • Moisture Sensitivity Level (MSL): 2A (4 Weeks)
  • REACH Status: REACH Unaffected

The VLMD31M2P1-GS08 meets all mechanical and compliance requirements. Electrical parameters including forward voltage (1.8V vs. 1.9V), millicandela rating (39mcd), viewing angle (120°), and wavelength characteristics (648nm dominant, 650nm peak vs. 630nm dominant, 643nm peak) fall within acceptable tolerance ranges for red LED indication applications.

Parameter Comparison

Parameter VLMK3102-GS08 VLMD31M2P1-GS08
Manufacturer Vishay Semiconductor Opto Division Vishay Semiconductor Opto Division
Color Red Red
Lens Transparency Clear Clear
Millicandela Rating 39mcd 39mcd
Lens Style Round with Flat Top Round with Flat Top
Lens Size 2.40mm Dia 2.40mm Dia
Voltage - Forward (Vf) (Typ) 1.9V 1.8V
Current - Test 10mA 10mA
Viewing Angle 120° 120°
Mounting Type Surface Mount Surface Mount
Wavelength - Dominant 630nm 648nm
Wavelength - Peak 643nm 650nm
Package / Case 2-SMD, J-Lead 2-SMD, J-Lead
Size / Dimension 3.00mm L × 2.80mm W 3.00mm L × 2.80mm W
Height (Max) 1.85mm 1.85mm
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2A (4 Weeks) 2A (4 Weeks)
REACH Status REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

Both the VLMK3102-GS08 and VLMD31M2P1-GS08 maintain active product status and full compliance with ROHS3 and REACH regulations. The substitute part VLMD31M2P1-GS08 carries identical mechanical specifications, moisture sensitivity classification, and environmental certifications. Selection between these parts depends on application-specific wavelength requirements and forward voltage tolerance in the circuit design. Both components are suitable for red LED indication applications requiring surface mount 2-PLCC packaging with 120° viewing angle and 39 millicandela output.

Frequently Asked Questions (FAQ)

Q: Can VLMD31M2P1-GS08 be used as a direct replacement for VLMK3102-GS08?

A: Yes, provided the circuit design accommodates the 0.1V forward voltage difference (1.8V vs. 1.9V) and the wavelength shift from 630nm to 648nm dominant wavelength. Both parts share identical mechanical dimensions, package type, lens specifications, and compliance certifications.

Q: What is the significance of the wavelength difference between these parts?

A: The VLMK3102-GS08 operates at 630nm dominant wavelength, while the VLMD31M2P1-GS08 operates at 648nm. Both are classified as red LEDs. The wavelength difference may affect perceived color intensity and hue in visual indication applications. Circuit performance remains equivalent for standard indication purposes.

Q: Are the package dimensions identical?

A: Yes. Both parts use 2-SMD, J-Lead packaging with dimensions of 3.00mm L × 2.80mm W and maximum height of 1.85mm. They are mechanically interchangeable on PCB layouts designed for either part number.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes. Both components carry MSL 2A (4 Weeks) classification, requiring identical storage and handling protocols prior to reflow soldering.

Q: What compliance certifications apply to both parts?

A: Both the VLMK3102-GS08 and VLMD31M2P1-GS08 are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations.

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