SSL-LX5093XIC Red LED T-1 3/4 Through Hole Equivalent & Substitute Parts

Part Overview

The SSL-LX5093XIC 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 clear lens with 600mcd brightness rating and 635nm peak wavelength. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are necessary when the primary SSL-LX5093XIC becomes unavailable due to supply constraints, inventory depletion, or design revision requirements. Alternative red LED components meeting equivalent electrical and mechanical specifications enable design flexibility and supply chain continuity.

Key Parameters

Parameter	SSL-LX5093XIC	Specification
Manufacturer	Lumex Opto/Components Inc.	Primary source
Color	Red	Visual indication wavelength
Lens Size	5mm, T-1 3/4	Package form factor
Lens Style	Round with Domed Top	Optical geometry
Lens Transparency	Clear	Colorless optical element
Voltage - Forward (Vf) Typical	2V	Operating voltage
Current - Test	20mA	Standard test current
Millicandela Rating	600mcd	Luminous intensity
Wavelength - Peak	635nm	Dominant emission wavelength
Viewing Angle	20°	Directional light emission
Mounting Type	Through Hole	PCB assembly method
Package / Case	Radial	Lead configuration
Height (Max)	8.60mm	Physical dimension
RoHS Status	ROHS3 Compliant	Environmental compliance
MSL Rating	1 (Unlimited)	Moisture sensitivity
Product Status	Active	Manufacturing availability

Substitute Part Grouping Explanation

Substitution eligibility for the SSL-LX5093XIC is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

Color: Red
Lens Size: 5mm, T-1 3/4 form factor
Mounting Type: Through Hole
Package / Case: Radial lead configuration
Lens Transparency: Clear
Lens Style: Round with Domed Top

Allowable Variation Parameters:

Voltage - Forward (Vf): ±0.2V tolerance (1.8V to 2.2V acceptable)
Millicandela Rating: ±15% variation (510mcd to 690mcd acceptable)
Wavelength - Peak: ±10nm variation (625nm to 645nm acceptable)
Viewing Angle: ±10° variation (10° to 30° acceptable)
Height (Max): ±0.3mm variation (8.3mm to 8.9mm acceptable)

Compliance Requirements:

RoHS3 Compliant status required
MSL 1 (Unlimited) rating required
Active or current production status preferred

The following substitute parts meet these criteria:

Group A - Direct Equivalents (Vf 1.8V to 2.05V, 600mcd+ brightness):

LTL2R3KEK (Lite-On Inc.)
LTL2R3KRK (Lite-On Inc.)

Group B - Compatible Alternatives (Vf 2V, 600mcd+ brightness, wider viewing angle):

OVLLR8C7 (TT Electronics/Optek Technology)

Group C - Lower Brightness Alternatives (Vf 1.8V to 2.2V, <600mcd):

HLMP-D105 (Broadcom Limited)
WP1503EC (Kingbright)
XLM2ACR169W (SunLED)

Group D - Obsolete Status (Not Recommended):

MV3750 (onsemi) - Product status obsolete

Parameter Comparison

Parameter	SSL-LX5093XIC	HLMP-D105	LTL2R3KEK	LTL2R3KRK	OVLLR8C7	WP1503EC	XLM2ACR169W
Manufacturer	Lumex	Broadcom	Lite-On	Lite-On	TT Electronics/Optek	Kingbright	SunLED
Color	Red	Red	Red	Red	Red	Red	Red
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	4.80mm Dia
Lens Style	Round Domed	Round Domed	Round Domed	Round Domed	Round Flat	Round Domed	Round Domed
Lens Transparency	Clear	Clear	Clear	Clear	Clear	Clear	Clear
Vf (Typ) [V]	2.0	1.8	2.05	2.0	2.0	2.0	2.2
Current - Test [mA]	20	20	20	20	20	20	20
Millicandela Rating [mcd]	600	240	700	680	900	50	695
Wavelength - Peak [nm]	635	645	632	639	—	627	640
Wavelength - Dominant [nm]	—	637	624	631	623	617	625
Viewing Angle [°]	20	24	30	30	100	30	130
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial	Radial	Radial	Radial	Radial
Height (Max) [mm]	8.60	12.44	8.70	8.70	6.80	8.60	4.85
RoHS Status	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3
MSL Rating	1	1	1	1	1	1	1
Product Status	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

LTL2R3KEK and LTL2R3KRK from Lite-On Inc. are the preferred substitutes. Both parts maintain the SSL-LX5093XIC electrical characteristics (2V forward voltage, 20mA test current) with comparable brightness ratings (700mcd and 680mcd respectively). Both are ROHS3 compliant with MSL 1 rating and active production status. LTL2R3KRK provides the closest match with identical 2V forward voltage and 631nm dominant wavelength. LTL2R3KEK offers slightly higher brightness (700mcd) with 2.05V forward voltage, acceptable within ±0.05V tolerance.

Secondary Substitutes (Compatible with Design Considerations):

OVLLR8C7 from TT Electronics/Optek Technology provides the highest brightness (900mcd) with matching 2V forward voltage and ROHS3 compliance. The primary design consideration is the flat-top lens style versus the domed-top of the original part, which affects optical beam pattern. The 100° viewing angle is significantly wider than the original 20°, suitable for applications requiring broader light distribution.

Conditional Substitutes (Application-Dependent):

HLMP-D105 (Broadcom) operates at 1.8V forward voltage with lower brightness (240mcd). This part is suitable only for applications where reduced brightness is acceptable and circuit design accommodates the lower forward voltage. XLM2ACR169W (SunLED) operates at 2.2V forward voltage with 695mcd brightness and 130° viewing angle. The higher forward voltage and significantly wider viewing angle require circuit verification before implementation.

WP1503EC (Kingbright) is not recommended as a direct substitute due to extremely low brightness rating (50mcd), which is 92% below the original specification.

Not Recommended:

MV3750 (onsemi) has obsolete product status and should not be selected for new designs or ongoing production.

Frequently Asked Questions (FAQ)

Q: Can I use HLMP-D105 as a direct replacement for SSL-LX5093XIC?

A: HLMP-D105 is electrically compatible but with design considerations. The forward voltage is 1.8V versus 2V, requiring circuit verification to ensure proper current limiting. The brightness is significantly lower at 240mcd versus 600mcd. Use only if the application tolerates reduced brightness and circuit design is adjusted for the lower forward voltage.

Q: What is the difference between LTL2R3KEK and LTL2R3KRK?

A: Both are Lite-On red LEDs with identical 5mm T-1 3/4 form factor and through-hole radial mounting. LTL2R3KEK operates at 2.05V with 700mcd brightness and 624nm dominant wavelength. LTL2R3KRK operates at 2V with 680mcd brightness and 631nm dominant wavelength. LTL2R3KRK provides closer electrical matching to the SSL-LX5093XIC. LTL2R3KEK offers slightly higher brightness. Both are ROHS3 compliant and active production status.

Q: Why is OVLLR8C7 brighter than SSL-LX5093XIC if both operate at 2V?

A: Brightness (millicandela rating) depends on LED chip efficiency, lens design, and optical geometry. OVLLR8C7 achieves 900mcd versus 600mcd through superior chip design and lens optimization. Both parts operate at identical 2V forward voltage and 20mA test current. The higher brightness does not indicate incompatibility; it reflects manufacturing advancement.

Q: Can I use XLM2ACR169W in a circuit designed for SSL-LX5093XIC?

A: XLM2ACR169W is mechanically and electrically compatible with design verification. The forward voltage is 2.2V versus 2V, requiring circuit current-limiting resistor adjustment. The viewing angle is 130° versus 20°, significantly wider. The lens diameter is 4.80mm versus 5mm, which may affect PCB footprint compatibility. Verify circuit design and mechanical fit before implementation.

Q: What does ROHS3 compliance mean for LED substitution?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the component meets European environmental standards restricting lead, mercury, cadmium, and other hazardous materials. All substitute parts listed are ROHS3 compliant, ensuring regulatory compatibility with the original SSL-LX5093XIC for applications requiring environmental compliance.

Q: Why is MV3750 listed as not recommended?

A: MV3750 has obsolete product status, indicating discontinued manufacturing. Obsolete components present supply chain risk and should not be selected for new designs or ongoing production. Active production status parts (SSL-LX5093XIC, LTL2R3KEK, LTL2R3KRK, OVLLR8C7, HLMP-D105, WP1503EC, XLM2ACR169W) ensure long-term availability.

Q: What is MSL 1 (Unlimited) rating?

A: MSL (Moisture Sensitivity Level) 1 indicates the component has unlimited shelf life without special moisture control requirements. All listed parts have MSL 1 rating, meaning they can be stored and handled under standard conditions without desiccant packaging or controlled humidity environments.

Q: How do I verify if a substitute part will work in my application?

A: Verify three critical parameters: (1) Forward voltage compatibility with circuit current-limiting design, (2) Brightness (millicandela) requirement for visual indication, (3) Viewing angle suitability for optical geometry. All substitute parts maintain 5mm T-1 3/4 through-hole radial form factor and red color. Confirm circuit design accommodates the forward voltage range and brightness level of the selected substitute.

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