SSL-LX5093XRC Red LED T-1 3/4 Through-Hole Equivalent & Substitute Parts

Part Overview

The SSL-LX5093XRC is a red LED indication component manufactured by Lumex Opto/Components Inc., designed for through-hole mounting applications. This discrete radial LED operates at 1.7V forward voltage with a 1200mcd brightness rating and 660nm peak wavelength. The component features a 5mm T-1 3/4 clear domed lens with a 20° viewing angle.

The SSL-LX5093XRC is classified as Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Active alternatives with compatible electrical and mechanical parameters are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Lens Size	5mm, T-1 3/4	-	Critical - Determines mechanical fit in PCB footprint
Mounting Type	Through Hole	-	Critical - Defines assembly compatibility
Package / Case	Radial	-	Critical - Determines lead configuration
Color	Red	-	Critical - Defines optical output
Lens Transparency	Clear	-	Critical - Affects light transmission
Voltage - Forward (Vf) (Typ)	1.7V	V	Important - Affects circuit design and current limiting
Current - Test	20mA	mA	Important - Standard operating condition
Millicandela Rating	1200mcd	mcd	Important - Determines brightness level
Wavelength - Peak	660nm	nm	Important - Defines color specification
Viewing Angle	20°	°	Important - Affects visibility range
Height (Max)	8.60mm	mm	Important - PCB clearance consideration
RoHS Status	ROHS3 Compliant	-	Critical - Regulatory compliance
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-	Important - Storage and handling requirements

Substitute Part Grouping Explanation

Substitution logic for the SSL-LX5093XRC is based on the following critical parameters:

Mechanical Compatibility Requirements:

Lens size must be 5mm or 5.00mm diameter (T-1 3/4 form factor)
Mounting type must be through-hole radial configuration
Package case must be radial with compatible lead spacing
Maximum height must not exceed 8.90mm to ensure PCB clearance

Electrical Compatibility Requirements:

Forward voltage (Vf) range: 1.7V to 2.2V (acceptable variance for series resistor adjustment)
Test current: 20mA standard operating condition
Color: Red LED only
Lens transparency: Clear (colorless lens)

Optical Compatibility Requirements:

Peak wavelength: 623nm to 660nm (red spectrum)
Millicandela rating: 125mcd to 6300mcd (brightness variation acceptable based on application requirements)
Viewing angle: 6° to 30° (application-dependent selection)

Regulatory Compliance:

RoHS3 compliance required
MSL rating of 1 (Unlimited) preferred for standard handling

Substitute parts are grouped into two categories: MFR Recommended (same manufacturer, active status) and Similar (alternative manufacturers, active status with compatible parameters).

Parameter Comparison

Part Number	Manufacturer	Status	Vf (Typ)	mcd	Wavelength Peak	Viewing Angle	Height Max	Lens Size	RoHS
SSL-LX5093XRC	Lumex	Obsolete	1.7V	1200	660nm	20°	8.60mm	5mm T-1 3/4	ROHS3
SSL-LX5093XIC	Lumex	Active	2V	600	635nm	20°	8.60mm	5mm T-1 3/4	ROHS3
151053RS03000	Würth Elektronik	Active	1.9V	5000	631nm	30°	8.85mm	5.00mm	ROHS3
333-2SURC/S400-A8	Everlight	Active	2V	5000	632nm	10°	8.90mm	5.00mm	ROHS3
383-2SDRC/S530-A4	Everlight	Active	2V	2780	650nm	6°	8.90mm	5.00mm	-
383-2SURC/S400-A6	Everlight	Active	2V	6300	632nm	6°	8.90mm	5.00mm	ROHS3
383-2SURC/S530-A3	Everlight	Active	2V	2500	632nm	6°	8.90mm	5.00mm	ROHS3
383-2SURC/S530-A6	Everlight	Active	2V	6300	632nm	6°	8.90mm	5mm T-1 3/4	-
5219464F	Dialight	Active	2.2V	125	635nm	24°	8.81mm	4.83mm	ROHS3
7343-2SURC/H2/S400-A7	Everlight	Active	2V	1600	632nm	30°	8.85mm	5mm T-1 3/4	ROHS3
7343-2SURC/H2/S400-A8	Everlight	Active	2V	2000	632nm	30°	8.85mm	5mm T-1 3/4	ROHS3

Engineering Selection Recommendations

Primary Recommendation - Same Manufacturer:

SSL-LX5093XIC (Lumex Opto/Components Inc.) is the manufacturer-recommended substitute. This part maintains identical mechanical compatibility (5mm T-1 3/4 through-hole radial package, 8.60mm height) and shares the same base product number (SSL-LX5093). Forward voltage increases from 1.7V to 2V, requiring circuit resistor adjustment. Brightness decreases from 1200mcd to 600mcd. Both parts are ROHS3 compliant with MSL rating of 1 (Unlimited). Active product status ensures long-term availability.

Secondary Recommendations - T-1 3/4 Form Factor:

For applications requiring T-1 3/4 mechanical compatibility with active product status and ROHS3 compliance:

7343-2SURC/H2/S400-A7 (Everlight): 1600mcd brightness, 2V forward voltage, 30° viewing angle, 8.85mm height. Suitable for applications requiring wider viewing angle than original specification.
7343-2SURC/H2/S400-A8 (Everlight): 2000mcd brightness, 2V forward voltage, 30° viewing angle, 8.85mm height. Recommended for applications requiring higher brightness output.

Alternative Recommendations - 5mm Round Form Factor:

For applications where T-1 3/4 designation is not critical and 5.00mm diameter round form factor is acceptable:

151053RS03000 (Würth Elektronik WL-TMRW Series): 5000mcd brightness, 1.9V forward voltage, 30° viewing angle, 8.85mm height. Closest forward voltage match to original specification.
333-2SURC/S400-A8 (Everlight): 5000mcd brightness, 2V forward voltage, 10° viewing angle, 8.90mm height. Suitable for narrow-angle applications.
383-2SURC/S400-A6 (Everlight): 6300mcd brightness, 2V forward voltage, 6° viewing angle, 8.90mm height. Highest brightness option with narrow viewing angle.

Compliance Verification:

All recommended substitutes maintain ROHS3 compliance and MSL rating of 1 (Unlimited). Forward voltage variations (1.7V to 2.2V) are within acceptable range for standard series resistor circuit adjustment. Height specifications (8.60mm to 8.90mm) are compatible with standard PCB clearance requirements.

Frequently Asked Questions (FAQ)

Q1: Can SSL-LX5093XIC directly replace SSL-LX5093XRC without circuit modification?

A: SSL-LX5093XIC has identical mechanical compatibility and package form factor. Forward voltage increases from 1.7V to 2V, requiring series resistor recalculation to maintain 20mA test current. Brightness decreases from 1200mcd to 600mcd. Circuit redesign is necessary for proper operation.

Q2: What is the difference between T-1 3/4 and 5.00mm diameter designations?

A: T-1 3/4 is a standard industry designation for 5mm diameter LED packages. Both terms refer to the same physical lens diameter. Parts specified as "5mm T-1 3/4" and "5.00mm Dia" are mechanically equivalent for through-hole PCB mounting.

Q3: How does forward voltage variation affect substitution compatibility?

A: Forward voltage (Vf) determines the voltage drop across the LED at specified test current (20mA). Original specification is 1.7V; substitutes range from 1.9V to 2.2V. Higher Vf requires lower series resistor value to maintain 20mA current. Circuit redesign is required for each substitution.

Q4: What viewing angle should be selected for substitution?

A: Original specification is 20° viewing angle. Substitutes range from 6° (narrow angle) to 30° (wide angle). Selection depends on application requirements. Narrow angles (6°) concentrate light intensity; wide angles (30°) distribute light over broader area. Verify application visibility requirements before selection.

Q5: Why do some substitutes have higher millicandela ratings?

A: Millicandela (mcd) rating indicates brightness intensity at specified test current (20mA). Original specification is 1200mcd. Higher-rated substitutes (up to 6300mcd) provide increased brightness output. Selection depends on application visibility requirements and power budget constraints.

Q6: Are all substitute parts RoHS3 compliant?

A: Most recommended substitutes are ROHS3 compliant. Part 383-2SDRC/S530-A4 and 383-2SURC/S530-A6 do not list RoHS status in provided specifications. Verify RoHS compliance with manufacturer for applications requiring regulatory certification.

Q7: What is MSL rating and why is it important?

A: Moisture Sensitivity Level (MSL) rating indicates component sensitivity to moisture during storage and handling. MSL 1 (Unlimited) means the component has no moisture sensitivity restrictions and can be stored under standard conditions indefinitely. All recommended substitutes maintain MSL 1 rating.

Q8: Can wavelength variation affect optical performance?

A: Original specification is 660nm peak wavelength. Substitutes range from 631nm to 650nm, all within red spectrum. Wavelength variation affects perceived color hue slightly but maintains red LED indication function. Verify application color matching requirements before selection.

Q9: What is the base product number and why is it relevant?

A: Base product number SSL-LX5093 indicates the core product family. SSL-LX5093XRC and SSL-LX5093XIC share the same base number, indicating they are variants within the same product line. This relationship supports manufacturer-recommended substitution.

Q10: How should height specification be evaluated for PCB design?

A: Original specification is 8.60mm maximum height. Substitutes range from 8.60mm to 8.90mm. Verify PCB clearance requirements and component placement constraints. Height variation of 0.30mm is typically acceptable in standard PCB designs but should be confirmed for specific applications with tight vertical clearance.

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