SSI-LXH312GD-250 LED Panel Indicator Green Equivalent & Substitute Parts

Part Overview

The SSI-LXH312GD-250 is an active production LED panel indicator manufactured by Lumex Opto/Components Inc. This component is a 3mm green diffused LED designed for panel-mount applications with 9.9" (251.46mm) wire leads. The part operates at 2.2V forward voltage with a maximum current rating of 20mA and delivers 30 millicandela brightness at a 565nm peak wavelength with a 60° viewing angle.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications are maintained across the product family while accommodating specific application requirements such as lead length or current specifications.

Substiute Parts

SSI-LXH312GD-250

Lumex Opto/Components Inc.In Stock: 1149SSI-LXH312GD-250 Datasheet

Current PartRFQ

SSI-LXH312GD-150

Lumex Opto/Components Inc.In Stock: 3048SSI-LXH312GD-150 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSI-LXH312GD-250 are identified within the SSI-LXH312 base product family. Substitution is valid when the following critical parameters remain constant or within acceptable tolerance:

Fixed Parameters (Must Match):

• Lamp Color: Green
• Lens Color: Green
• Lens Transparency: Diffused
• Lens Size: 3mm, T-1
• Lens Style: Round with Domed Top
• Panel Cutout Shape: Round
• Panel Cutout Dimensions: 0.17" (4.32mm)
• Wavelength - Peak: 565nm
• Viewing Angle: 60°
• Termination Style: Wire Leads
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

Variable Parameters (Substitution Allowed):

• Forward Voltage (Vf Typ): 2.1V to 2.2V range
• Maximum Current (If Max): 20mA to 25mA range
• Lead Length: 6" (152.40mm) to 9.9" (251.46mm)
• Millicandela Rating: 30mcd (consistent across family)

The SSI-LXH312GD-150 qualifies as a substitute part because it maintains all fixed parameters while offering a shorter lead length (6" versus 9.9") and slightly different electrical ratings (2.1V, 25mA versus 2.2V, 20mA).

Parameter Comparison

Engineering Selection Recommendations

Both the SSI-LXH312GD-250 and SSI-LXH312GD-150 maintain active product status and full compliance with ROHS3 and REACH regulations. Selection between these parts is determined by application-specific lead length requirements and circuit current capacity.

SSI-LXH312GD-250 Selection Criteria:

• Applications requiring 9.9" (251.46mm) lead length for extended panel-to-component distance
• Circuits designed for 20mA maximum current draw
• Forward voltage specification of 2.2V

SSI-LXH312GD-150 Selection Criteria:

• Applications requiring 6" (152.40mm) lead length for compact panel mounting
• Circuits capable of supporting 25mA maximum current draw
• Forward voltage specification of 2.1V
• Higher inventory availability (3020 units versus 1066 units)

Both parts share identical mechanical compatibility with 0.17" (4.32mm) round panel cutouts and deliver equivalent optical performance at 30mcd brightness with 565nm peak wavelength and 60° viewing angle.

Frequently Asked Questions (FAQ)

Q: Can SSI-LXH312GD-150 replace SSI-LXH312GD-250 in existing designs?

A: Substitution is valid only if the application accommodates the shorter 6" lead length and the circuit can support the 25mA maximum current rating. The 0.1V forward voltage difference (2.1V versus 2.2V) is within typical LED tolerance ranges for the same color family.

Q: What is the primary difference between these two parts?

A: The primary differences are lead length (9.9" versus 6") and electrical ratings (20mA versus 25mA maximum current, 2.2V versus 2.1V forward voltage). All optical and mechanical parameters remain identical.

Q: Are both parts panel-mount compatible?

A: Yes. Both parts feature identical 0.17" (4.32mm) round panel cutout dimensions and 3mm T-1 lens form factor, ensuring mechanical interchangeability in panel applications.

Q: Do these parts require different circuit design considerations?

A: The SSI-LXH312GD-150 supports higher maximum current (25mA versus 20mA), which may allow for brighter operation within the same 30mcd rating. Circuit current-limiting resistor values should be recalculated based on the specific forward voltage and desired operating current for each part.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both SSI-LXH312GD-250 and SSI-LXH312GD-150 are ROHS3 Compliant, REACH Unaffected, and carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Which part has better availability?

A: The SSI-LXH312GD-150 has higher inventory availability at 3020 units in stock compared to 1066 units for the SSI-LXH312GD-250.