SLA-560LT3F Red LED T-1 3/4 Through-Hole Equivalent & Substitute Parts

Part Overview

The SLA-560LT3F is a red LED indicator from Rohm Semiconductor designed for discrete indication applications in through-hole mounting configurations. This component features a 5mm T-1 3/4 clear lens package with 100mcd brightness at 20mA test current and 1.75V forward voltage. The part is marked as "Not For New Designs," making identification of functionally equivalent alternatives essential for ongoing production support, maintenance, and legacy system repairs.

Substiute Parts

SLA-560LT3F

Rohm SemiconductorIn Stock: 1233SLA-560LT3F Datasheet

Current PartRFQ

SLI-560UT3F

Rohm SemiconductorIn Stock: 34757SLI-560UT3F Datasheet

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5219464F

DialightIn Stock: 34635219464F Datasheet

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7383/R7C3-ARUB/P/MS

Everlight Electronics Co LtdIn Stock: 9207383/R7C3-ARUB/P/MS Datasheet

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C503B-RCN-CW0Z0AA1

CreeLED, Inc.In Stock: 63753C503B-RCN-CW0Z0AA1 Datasheet

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LTL2H3HRKL13

Lite-On Inc.In Stock: 1110LTL2H3HRKL13 Datasheet

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LTL2H3KEK

Lite-On Inc.In Stock: 8994LTL2H3KEK Datasheet

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LTL2H3KRK

Lite-On Inc.In Stock: 869LTL2H3KRK Datasheet

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MV8190A3R0

Everlight Electronics Co LtdIn Stock: 1034MV8190A3R0 Datasheet

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OVLFR3C7

TT Electronics/Optek TechnologyIn Stock: 58980OVLFR3C7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLA-560LT3F is determined by the following critical parameters:

Primary Compatibility Criteria:

• Lens size: 5mm, T-1 3/4 form factor
• Mounting type: Through-hole radial configuration
• Lens transparency: Clear (colorless)
• Color: Red spectrum (620–660nm wavelength range)
• Test current: 20mA standard
• Package / Case: Radial

Secondary Compatibility Considerations:

• Forward voltage (Vf): Range 1.7V–2.2V acceptable for most applications
• Millicandela rating: 100mcd–12000mcd range maintains functional compatibility
• Viewing angle: 15°–45° range supports standard indication applications
• Height: Maximum 10.30mm maintains PCB clearance compatibility

Substitute parts must satisfy all primary criteria and fall within acceptable ranges for secondary parameters. Parts with diffused lens transparency or non-radial packages are excluded from direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Direct Rohm Semiconductor Substitutes: SLI-560UT3F from Rohm Semiconductor is the primary alternative within the same manufacturer family. It maintains identical lens size (5mm T-1 3/4), mounting type (through-hole radial), and viewing angle (40°). Forward voltage increases from 1.75V to 1.9V, and brightness increases from 100mcd to 1000mcd. Both parts carry "Not For New Designs" status and ROHS3 compliance.

Active Production Alternatives: For applications requiring active production status, the following parts meet all primary compatibility criteria:

• 5219464F (Dialight): Closest brightness match to SLA-560LT3F at 125mcd. Vf of 2.2V and narrower viewing angle (24°) require circuit verification.
• LTL2H3KEK (Lite-On Inc.): Moderate brightness at 1700mcd with 2.05V Vf and 15° viewing angle. ROHS3 compliant with unlimited MSL.
• LTL2H3KRK (Lite-On Inc.): Similar specifications to LTL2H3KEK with 1300mcd brightness and 631nm wavelength.
• OVLFR3C7 (TT Electronics/Optek Technology): High brightness at 7400mcd with 2.0V Vf and 30° viewing angle. ROHS3 compliant with unlimited MSL.

Higher Brightness Alternatives:

• 7383/R7C3-ARUB/P/MS (Everlight Electronics Co Ltd): 7150mcd brightness with 2.0V Vf and 30° viewing angle. ROHS3 compliant.
• C503B-RCN-CW0Z0AA1 (CreeLED, Inc.): Highest brightness at 7500mcd with 2.1V Vf and 30° viewing angle. Maximum height of 10.30mm requires PCB layout verification.
• LTL2H3HRKL13 (Lite-On Inc.): Highest brightness at 12000mcd with 2.2V Vf and narrowest viewing angle (15°). ROHS3 compliant with 2A MSL.

All substitute parts maintain ROHS3 or RoHS compliance and are suitable for through-hole PCB assembly. Forward voltage differences require circuit current-limiting resistor adjustment. Brightness and viewing angle variations must be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can I directly replace SLA-560LT3F with any of these substitute parts without circuit modification?

A: Direct replacement is possible only with SLI-560UT3F from Rohm Semiconductor, as it maintains identical forward voltage tolerance and viewing angle. All other substitutes require verification of forward voltage compatibility. If your circuit uses a fixed current-limiting resistor, higher Vf values (2.0V–2.2V) will reduce LED current and brightness. Lower Vf values (1.7V–1.9V) will increase current and brightness. Recalculate resistor values using Ohm's law: R = (Vsupply − Vf) / Iled.

Q: What is the difference between "Clear" and "Diffused" lens transparency?

A: Clear lenses (colorless) provide direct light transmission with sharp beam definition, suitable for directional indication. Diffused lenses scatter light over a wider area with reduced peak brightness. The SLA-560LT3F uses a clear lens. MV8190A3R0 is excluded from substitution because it features a diffused red lens, which changes the optical characteristics and viewing experience.

Q: Why do some substitute parts have significantly higher millicandela ratings?

A: Millicandela (mcd) rating indicates brightness at the specified test current (20mA). Higher mcd values result from improved LED die efficiency or different phosphor formulations. Parts like LTL2H3HRKL13 (12000mcd) and C503B-RCN-CW0Z0AA1 (7500mcd) provide brighter indication but may require dimming resistors in sensitive applications. Lower mcd parts like 5219464F (125mcd) closely match the original brightness.

Q: What does "Viewing Angle" mean, and why does it vary?

A: Viewing angle specifies the cone within which the LED maintains at least 50% of peak brightness. The SLA-560LT3F has a 40° viewing angle, providing wide-angle indication. Narrower angles (15°) concentrate light for focused indication, while wider angles (45°) distribute light over a larger area. Select based on application requirements: narrow angles for directional status indication, wide angles for general visibility.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry either ROHS3 or RoHS compliance certification. ROHS3 represents the current standard with additional restrictions on phthalates. RoHS (without version number) indicates compliance with earlier RoHS directives. Both are acceptable for most applications; verify specific regulatory requirements for your end market.

Q: What is Moisture Sensitivity Level (MSL), and does it affect substitution?

A: MSL indicates how long a component can be stored in ambient conditions before moisture absorption affects solderability. MSL 1 (Unlimited) allows indefinite storage. MSL 2A (4 Weeks) requires baking before reflow soldering if storage exceeds 4 weeks. For standard production environments with proper storage, MSL differences are not critical. Verify storage and handling procedures if using MSL 2A parts.

Q: Can I use MV8190A3R0 as a substitute?

A: No. MV8190A3R0 features a diffused red lens (not clear) and is excluded from direct substitution. While it maintains the same 5mm T-1 3/4 form factor and through-hole mounting, the diffused lens changes optical characteristics and viewing experience. Use only if your application specifically requires diffused indication.

Q: What is the significance of "Product Status: Not For New Designs"?

A: This designation indicates the manufacturer is discontinuing the part and recommends using alternatives for new designs. The SLA-560LT3F and SLI-560UT3F both carry this status. For ongoing production of existing products, these parts remain available. For new product development, select from active production alternatives listed in this document.