Equivalent & Substitute Parts for SSF-LXH101YD

Part Overview

The SSF-LXH101YD is a 5mm yellow diffused LED circuit board indicator manufactured by Lumex Opto/Components Inc. This component features a round domed top lens, right-angle through-hole mounting, and is rated for 20mA operation at 2.1V. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for circuit board indicator applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	SSF-LXH101YD
Manufacturer	Lumex Opto/Components Inc.
Color	Yellow
Wavelength - Peak	585nm
Configuration	Single
Current Rating	20mA
Millicandela Rating	30mcd
Viewing Angle	60°
Lens Type	Diffused, Tinted
Lens Style	Round with Domed Top
Lens Size	5mm, T-1 3/4
Voltage Rating	2.1V
Mounting Type	Through Hole, Right Angle
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution eligibility for the SSF-LXH101YD is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Color: Yellow
Wavelength - Peak: 585nm
Configuration: Single
Current Rating: 20mA
Voltage Rating: 2.1V
Lens Type: Diffused, Tinted
Lens Style: Round with Domed Top
Lens Size: 5mm, T-1 3/4
Mounting Type: Through Hole, Right Angle
RoHS Status: ROHS3 Compliant
MSL Rating: 1 (Unlimited)
REACH Status: REACH Unaffected

Allowable Variation Parameters:

Millicandela Rating: 30mcd to 33mcd (within acceptable brightness tolerance)
Viewing Angle: 30° to 60° (dependent on application requirements)
Product Status: Active preferred over Obsolete
Packaging: Bulk or standard packaging formats

Substitute parts are grouped into two categories: Lumex Opto/Components Inc. direct equivalents (same manufacturer, active status) and cross-manufacturer alternatives (P-tec series) that meet all mandatory electrical and mechanical specifications.

Parameter Comparison

Part Number	Manufacturer	Color	Wavelength (nm)	Current (mA)	Voltage (V)	Millicandela	Viewing Angle	Lens Type	Lens Size	Mounting	Status	Inventory (Pcs)
SSF-LXH101YD	Lumex	Yellow	585	20	2.1	30	60°	Diffused, Tinted	5mm T-1 3/4	Through Hole, RA	Obsolete	853
SSF-LXH100LYD	Lumex	Yellow	585	20	2.1	30	60°	Diffused, Tinted	5mm T-1 3/4	Through Hole, RA	Active	907
SSF-LXH100MYD	Lumex	Yellow	585	20	2.1	30	60°	Diffused, Tinted	5mm T-1 3/4	Through Hole, RA	Active	13826
SSF-LXH100YD	Lumex	Yellow	585	20	2.1	30	60°	Diffused, Tinted	5mm T-1 3/4	Through Hole, RA	Active	4415
SSF-LXH100YD-01	Lumex	Yellow	585	20	2.1	30	60°	Diffused, Tinted	5mm T-1 3/4	Through Hole, RA	Active	4168
SSF-LXH104YD	Lumex	Yellow	585	20	2.1	30	60°	Diffused, Tinted	5mm T-1 3/4	Through Hole, RA	Active	2667
SSF-LXH4RA5LYD	Lumex	Yellow	585	20	2.1	30	60°	Diffused, Tinted	5mm T-1 3/4	Through Hole, RA	Active	686
SSF-LXH4RA5YD	Lumex	Yellow	585	20	2.1	30	60°	Diffused, Tinted	5mm T-1 3/4	Through Hole, RA	Active	775
PL501-1Y01	P-tec	Yellow	585	20	2.1	33	30°	Diffused, Tinted	5mm T-1 3/4	Through Hole, RA	Active	1712
PL505-1Y01	P-tec	Yellow	585	20	2.1	33	30°	Diffused, Tinted	5mm T-1 3/4	Through Hole, RA	Active	2021

Engineering Selection Recommendations

Primary Substitutes (Lumex Opto/Components Inc.):

The following parts are direct functional equivalents manufactured by Lumex and maintain identical electrical and mechanical specifications to the SSF-LXH101YD:

SSF-LXH100LYD: Active status, 907 units in stock. Identical specifications across all parameters.
SSF-LXH100MYD: Active status, 13826 units in stock. Highest inventory availability. Identical specifications across all parameters.
SSF-LXH100YD: Active status, 4415 units in stock. Identical specifications across all parameters.
SSF-LXH100YD-01: Active status, 4168 units in stock. Identical specifications across all parameters.
SSF-LXH104YD: Active status, 2667 units in stock. Identical specifications across all parameters.
SSF-LXH4RA5LYD: Active status, 686 units in stock. Identical specifications across all parameters.
SSF-LXH4RA5YD: Active status, 775 units in stock. Identical specifications across all parameters.

All Lumex substitutes are ROHS3 compliant, MSL 1 rated, and REACH unaffected, matching the compliance profile of the original part.

Secondary Substitutes (Cross-Manufacturer):

PL501-1Y01 (P-tec Series): Active status, 1712 units in stock. Millicandela rating of 33mcd (3mcd higher than original) and viewing angle of 30° (narrower than original 60°). Electrical specifications (20mA, 2.1V, 585nm wavelength) are identical. ROHS3 compliant, MSL 1 rated, REACH unaffected.
PL505-1Y01 (P-tec Series): Active status, 2021 units in stock. Millicandela rating of 33mcd and viewing angle of 30°. Electrical specifications identical to original. ROHS3 compliant, MSL 1 rated, REACH unaffected.

P-tec alternatives are suitable for applications where the narrower 30° viewing angle and slightly higher brightness are acceptable. The increased millicandela rating provides enhanced visibility in the specified viewing cone.

Frequently Asked Questions (FAQ)

Q: Can SSF-LXH100MYD be used as a direct replacement for SSF-LXH101YD?

A: Yes. SSF-LXH100MYD is electrically and mechanically identical to SSF-LXH101YD. Both operate at 20mA, 2.1V, with 585nm peak wavelength, 30mcd brightness, 60° viewing angle, and identical 5mm T-1 3/4 through-hole right-angle mounting. The primary difference is product status: SSF-LXH100MYD is active with 13826 units in stock, while SSF-LXH101YD is obsolete.

Q: What is the difference between Lumex and P-tec substitute options?

A: Lumex substitutes (SSF-LXH100 series and SSF-LXH4 series) maintain 100% parameter equivalence to the original SSF-LXH101YD. P-tec alternatives (PL501-1Y01 and PL505-1Y01) differ in two parameters: millicandela rating (33mcd versus 30mcd) and viewing angle (30° versus 60°). All other electrical and mechanical specifications remain identical. Selection depends on application requirements for brightness and viewing angle.

Q: Are the P-tec parts suitable for all applications using SSF-LXH101YD?

A: P-tec substitutes are suitable only for applications where a narrower 30° viewing angle and higher brightness (33mcd) are acceptable. If the original 60° viewing angle is required for the application, Lumex substitutes must be used.

Q: What is the inventory status for each substitute?

A: SSF-LXH100MYD has the highest inventory with 13826 units. SSF-LXH100YD has 4415 units. SSF-LXH100YD-01 has 4168 units. SSF-LXH104YD has 2667 units. PL505-1Y01 has 2021 units. PL501-1Y01 has 1712 units. SSF-LXH100LYD has 907 units. SSF-LXH4RA5YD has 775 units. SSF-LXH4RA5LYD has 686 units.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitutes are ROHS3 compliant with MSL 1 (Unlimited) rating and REACH unaffected status, matching the compliance profile of SSF-LXH101YD.

Q: What packaging formats are available for substitutes?

A: Lumex substitutes are available in bulk packaging. SSF-LXH4RA5LYD and SSF-LXH4RA5YD are available without specified packaging designation. P-tec alternatives (PL501-1Y01 and PL505-1Y01) are available in bulk packaging.

Q: Can multiple substitute part numbers be used interchangeably within the same circuit board design?

A: Yes. All Lumex substitutes listed are electrically and mechanically interchangeable. However, if P-tec parts are used, the narrower 30° viewing angle must be evaluated against the circuit board layout and intended viewing requirements. Mixing Lumex and P-tec parts in the same design is not recommended unless viewing angle differences are acceptable for specific LED positions.

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