SSL-LX5093IC Red LED T-1 3/4 Through Hole Equivalent & Substitute Parts

Part Overview

The SSL-LX5093IC is a red LED indication component manufactured by Lumex Opto/Components Inc., designed for through-hole mounting applications. This discrete 2V radial LED features a 5mm T-1 3/4 form factor with a clear, domed lens and 80mcd brightness rating. The part is currently active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical form factor, and mounting compatibility. The SSL-LX5093IC operates at 2V forward voltage with 20mA test current, establishing the primary parameters for substitution evaluation.

Key Parameters

Parameter	Value	Substitution Relevance
Lens Size	5mm, T-1 3/4	Critical - Physical form factor must match for PCB mounting
Mounting Type	Through Hole Radial	Critical - Determines board compatibility
Voltage - Forward (Vf)	2V Typical	Critical - Affects circuit design and current limiting resistor selection
Current - Test	20mA	Critical - Standard operating current specification
Color	Red	Critical - Optical output specification
Lens Transparency	Clear	Important - Affects light transmission characteristics
Millicandela Rating	80mcd	Important - Brightness specification for visibility requirements
Viewing Angle	30°	Important - Determines light distribution pattern
Package / Case	Radial	Critical - Lead configuration for through-hole insertion
RoHS Status	ROHS3 Compliant	Important - Regulatory compliance requirement

Substitute Part Grouping Explanation

Substitution logic for the SSL-LX5093IC is based on the following allowed parameters:

Critical Matching Parameters:

Lens size: 5mm, T-1 3/4 form factor
Mounting type: Through hole radial configuration
Color: Red LED indication
Lens transparency: Clear
Package type: Radial lead configuration
Test current: 20mA standard operating condition

Acceptable Variation Parameters:

Forward voltage (Vf): Range 1.8V to 2.2V (±10% tolerance around 2V nominal)
Millicandela rating: Brightness variations acceptable based on application requirements
Viewing angle: 20° to 100° acceptable for general indication applications
Wavelength: Red spectrum 617nm to 637nm acceptable
Height: Variations within through-hole PCB design tolerances

Regulatory Compliance:

RoHS3 compliance required for new designs
REACH status evaluated for supply chain continuity
MSL 1 (Unlimited) moisture sensitivity standard for this category

Substitute parts meeting all critical parameters and operating within acceptable variation ranges are listed below.

Parameter Comparison

Parameter	SSL-LX5093IC (Main)	HLMP-D105	LTL2R3KEK	LTL2R3KRK	OVLLR8C7	WP1503EC	WP7113EC
Manufacturer	Lumex	Broadcom	Lite-On	Lite-On	TT Electronics/Optek	Kingbright	Kingbright
Lens Size	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Color	Red	Red	Red	Red	Red	Red	Red
Lens Transparency	Clear	Clear	Clear	Clear	Clear	Clear	Clear
Voltage - Forward (Vf)	2V	1.8V	2.05V	2V	2V	2V	2V
Current - Test	20mA	20mA	20mA	20mA	20mA	20mA	20mA
Millicandela Rating	80mcd	240mcd	700mcd	680mcd	900mcd	50mcd	100mcd
Viewing Angle	30°	24°	30°	30°	100°	30°	20°
Wavelength - Peak	635nm	645nm	632nm	639nm	—	627nm	627nm
Height (Max)	8.60mm	12.44mm	8.70mm	8.70mm	6.80mm	8.60mm	8.60mm
Lens Style	Round Domed	Round Domed	Round Domed	Round Domed	Round Flat	Round Domed	Round Domed
Package / Case	Radial	Radial	Radial	Radial	Radial	Radial	Radial
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Substitutes (Highest Compatibility):

LTL2R3KRK (Lite-On) and WP1503EC (Kingbright) provide the closest electrical and mechanical match to the SSL-LX5093IC. Both maintain 2V forward voltage, 20mA test current, 5mm T-1 3/4 form factor, and 8.60mm maximum height. All three parts are active in production status with ROHS3 compliance and MSL 1 rating. These substitutes require no circuit redesign and are suitable for direct board-level replacement.

Compatible Substitutes (Minor Parameter Variations):

LTL2R3KEK (Lite-On) operates at 2.05V forward voltage, within acceptable tolerance of the 2V nominal specification. This part maintains identical mechanical form factor and mounting configuration. Higher brightness rating (700mcd vs. 80mcd) may require application review if brightness-sensitive circuit design is present.

WP7113EC (Kingbright) matches all critical parameters with 2V forward voltage and identical form factor. Narrower viewing angle (20° vs. 30°) affects light distribution but maintains compatibility for standard indication applications.

OVLLR8C7 (TT Electronics/Optek) operates at 2V with matching test current and form factor. Flat-top lens style differs from domed configuration; significantly wider viewing angle (100°) and lower profile (6.80mm) suit applications requiring broad light distribution. REACH status unaffected.

Conditional Substitutes (Significant Parameter Variations):

HLMP-D105 (Broadcom) operates at 1.8V forward voltage, requiring circuit evaluation for current-limiting resistor adjustment. Increased height (12.44mm) may conflict with PCB clearance constraints. Higher brightness (240mcd) and narrower viewing angle (24°) represent different optical characteristics. Active production status and ROHS3 compliance maintained.

Not Recommended:

MV3750 (onsemi) is obsolete in production status and should not be selected for new designs despite parameter compatibility. Obsolete parts present supply chain risk and lack long-term availability assurance.

Frequently Asked Questions (FAQ)

Q: Can I substitute the SSL-LX5093IC with HLMP-D105 without modifying my circuit?

A: No. HLMP-D105 operates at 1.8V forward voltage compared to SSL-LX5093IC's 2V specification. This 0.2V difference requires recalculation of the current-limiting resistor value to maintain 20mA test current. Additionally, HLMP-D105 has a maximum height of 12.44mm versus 8.60mm for the SSL-LX5093IC, which may create PCB clearance issues. Circuit redesign is necessary.

Q: What is the difference between LTL2R3KEK and LTL2R3KRK?

A: Both are Lite-On products with identical mechanical form factor and mounting type. LTL2R3KEK operates at 2.05V with 700mcd brightness, while LTL2R3KRK operates at 2V with 680mcd brightness. LTL2R3KRK provides closer voltage matching to the SSL-LX5093IC's 2V specification. LTL2R3KRK has REACH Affected status, while LTL2R3KEK status is not specified in available data.

Q: Why does OVLLR8C7 have a different lens style (flat vs. domed)?

A: OVLLR8C7 features a flat-top lens compared to the domed lens of SSL-LX5093IC. This design difference affects light distribution characteristics. OVLLR8C7's flat-top lens combined with 100° viewing angle provides significantly broader light distribution suitable for applications requiring wide-angle indication. The domed lens of SSL-LX5093IC concentrates light more directionally at 30° viewing angle. Application requirements determine which lens style is appropriate.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, meeting regulatory requirements for new product designs. The SSL-LX5093IC is also ROHS3 compliant. Compliance status is consistent across all active production alternatives.

Q: What does MSL 1 (Unlimited) mean for these LED components?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This rating applies to all listed parts and the main SSL-LX5093IC component. No desiccant storage or baking procedures are required before soldering.

Q: Can I use WP7113EC as a substitute if my application requires 30° viewing angle?

A: WP7113EC has a 20° viewing angle compared to SSL-LX5093IC's 30° specification. This narrower viewing angle concentrates light output more directionally. If your application specifically requires 30° viewing angle for proper visibility from multiple angles, WP7113EC may not meet requirements. LTL2R3KRK or WP1503EC maintain the 30° viewing angle specification.

Q: Why is MV3750 listed but marked as not recommended?

A: MV3750 is included in the parameter comparison for historical reference and supply chain awareness. However, MV3750 is obsolete in production status, meaning the manufacturer no longer actively produces this part. New designs should not select obsolete components due to supply discontinuation risk and lack of long-term availability assurance. Active alternatives are available.

Q: What is the significance of wavelength specifications (Peak vs. Dominant)?

A: Wavelength specifications define the color characteristics of the red LED output. Peak wavelength indicates the wavelength at maximum spectral intensity, while dominant wavelength represents the perceived color. All listed parts operate in the red spectrum (617nm to 645nm range), maintaining visual color consistency. Wavelength variations within this range are imperceptible to human vision for standard indication applications.

Q: Can I substitute based on brightness (millicandela) alone?

A: No. Brightness is only one parameter among many critical specifications. Substitution requires matching lens size, mounting type, forward voltage, test current, and form factor. Brightness variations (50mcd to 900mcd across alternatives) must be evaluated against specific application visibility requirements, but cannot override electrical and mechanical compatibility requirements.

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