SLI-560UT3F Red LED T-1 3/4 Through-Hole Equivalent & Substitute Parts

Part Overview

The SLI-560UT3F is a red LED indication component manufactured by Rohm Semiconductor, featuring a 5mm T-1 3/4 through-hole package with 630nm dominant wavelength and 1000mcd brightness rating. This part is classified as "Not For New Designs," making identification of active equivalent and substitute parts essential for ongoing production support, maintenance applications, and design continuity where this component is already deployed.

Substiute Parts

SLI-560UT3F

Rohm SemiconductorIn Stock: 34757SLI-560UT3F Datasheet

Current PartRFQ

5219464F

DialightIn Stock: 34635219464F Datasheet

SimilarRFQ

7383/R7C3-ARUB/P/MS

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

SimilarRFQ

C503B-RCN-CW0Z0AA1

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

SimilarRFQ

LTL2H3HRKL13

Lite-On Inc.In Stock: 1110LTL2H3HRKL13 Datasheet

SimilarRFQ

LTL2H3KEK

Lite-On Inc.In Stock: 8994LTL2H3KEK Datasheet

SimilarRFQ

LTL2H3KRK

Lite-On Inc.In Stock: 869LTL2H3KRK Datasheet

SimilarRFQ

OVLFR3C7

TT Electronics/Optek TechnologyIn Stock: 58980OVLFR3C7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLI-560UT3F is determined by the following critical parameters:

Primary Compatibility Criteria:

• Color: Red
• Mounting Type: Through Hole
• Lens Size: 5mm, T-1 3/4 package
• Package / Case: Radial
• Current - Test: 20mA
• RoHS Status: ROHS3 Compliant

Secondary Electrical Parameters (Allowable Variance):

• Voltage - Forward (Vf): 1.9V nominal (acceptable range: 1.9V to 2.2V)
• Millicandela Rating: 1000mcd nominal (acceptable range: 125mcd to 12000mcd for indication applications)
• Wavelength - Dominant: 630nm nominal (acceptable range: 623nm to 635nm for red spectrum)
• Viewing Angle: 40° nominal (acceptable range: 15° to 40°)

All identified substitute parts maintain through-hole radial configuration, red color specification, and 20mA test current. Substitute parts must be active products or have active product status to ensure ongoing availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

7383/R7C3-ARUB/P/MS (Everlight Electronics Co Ltd) and OVLFR3C7 (TT Electronics/Optek Technology) provide the closest electrical and mechanical alignment to the SLI-560UT3F. Both maintain identical lens size (5mm, T-1 3/4), forward voltage within 0.1V of the original specification, and ROHS3 compliance. These parts are classified as active products, ensuring long-term availability.

Secondary Substitutes (Acceptable Variance):

LTL2H3KEK and LTL2H3KRK (Lite-On Inc.) offer compatible through-hole radial packages with forward voltages of 2.05V and 2V respectively. These parts maintain ROHS3 compliance and active product status. The reduced viewing angle (15° versus 40°) represents a functional difference suitable for applications requiring more focused light distribution.

C503B-RCN-CW0Z0AA1 (CreeLED, Inc.) provides higher brightness (7500mcd) with compatible electrical parameters and RoHS compliance. The increased height (10.30mm maximum) requires verification against PCB layout constraints.

Limited Substitution:

5219464F (Dialight) features a smaller lens diameter (4.83mm) and significantly lower brightness (125mcd). This part is suitable only for applications where reduced brightness and modified lens geometry are acceptable.

LTL2H3HRKL13 (Lite-On Inc.) delivers the highest brightness rating (12000mcd) among available substitutes. The narrower viewing angle (15°) and MSL rating of 2A (4 Weeks) require consideration for moisture-sensitive assembly environments.

All substitute parts maintain ROHS3 or equivalent RoHS compliance, supporting regulatory requirements for restricted substance elimination.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different forward voltage?

A: Yes, within limits. The SLI-560UT3F operates at 1.9V nominal. Substitute parts rated between 1.9V and 2.2V are electrically compatible when used with appropriate current-limiting resistor calculations. Forward voltage differences require recalculation of series resistor values to maintain 20mA test current. Parts exceeding 2.2V forward voltage fall outside the acceptable substitution range.

Q: What is the impact of different millicandela ratings?

A: Millicandela rating determines LED brightness. The SLI-560UT3F is rated at 1000mcd. Substitute parts range from 125mcd to 12000mcd. Lower brightness (125mcd) is suitable for applications where reduced visibility is acceptable. Higher brightness (7150mcd to 12000mcd) provides enhanced visibility but may require optical diffusion or reduced drive current to match original brightness perception. Application requirements determine acceptable brightness variance.

Q: Are all substitute parts available in the same package?

A: All identified substitutes use through-hole radial packages with 5mm lens diameter or T-1 3/4 designation. Physical dimensions vary slightly: height ranges from 7.70mm (original) to 10.30mm (C503B-RCN-CW0Z0AA1). PCB layout verification is required for parts exceeding 9.00mm height to ensure clearance with adjacent components.

Q: What is the difference between wavelength dominant and peak wavelength?

A: Dominant wavelength represents the perceived color of the LED as observed by human vision. Peak wavelength represents the spectral distribution maximum. The SLI-560UT3F has 630nm dominant wavelength. Substitute parts range from 623nm to 635nm dominant wavelength, all within the red spectrum. This variance is imperceptible to human observation in indication applications.

Q: Which substitute offers the best long-term availability?

A: All identified substitute parts carry active product status, indicating manufacturer commitment to ongoing production. Everlight Electronics Co Ltd (7383/R7C3-ARUB/P/MS) and TT Electronics/Optek Technology (OVLFR3C7) are established suppliers with broad distribution networks. Lite-On Inc. provides multiple compatible variants (LTL2H3 series), offering flexibility for future sourcing.

Q: Do I need to modify my circuit design to use a substitute part?

A: Circuit modifications depend on forward voltage differences. The SLI-560UT3F operates at 1.9V; most substitutes operate at 2.0V to 2.2V. Recalculate series resistor values using Ohm's law: R = (Supply Voltage − Forward Voltage) / Test Current. For example, with 5V supply and 2.0V forward voltage: R = (5V − 2.0V) / 20mA = 150Ω. Verify resistor power rating and tolerance specifications for your application.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified substitute parts carry ROHS3 or equivalent RoHS compliance certification, meeting EU Directive 2011/65/EU requirements for restricted substance elimination. This ensures regulatory alignment with the original SLI-560UT3F specification.