LTC-561E Equivalent & Substitute Parts Reference

Part Overview

The LTC-561E is a 3-character 7-segment LED display module manufactured by Lite-On Inc., featuring orange-red color output with common anode configuration. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The display operates at 2V forward voltage with 20mA test current and is housed in a 12-DIP package measuring 0.600" (15.24mm) pitch.

Substiute Parts

LTC-561E

Lite-On Inc.In Stock: 1016LTC-561E Datasheet

Current PartRFQ

ELT-512USOWA/S530-A4

Everlight Electronics Co LtdIn Stock: 1144ELT-512USOWA/S530-A4 Datasheet

DirectRFQ

BA56-12EWA

KingbrightIn Stock: 1372BA56-12EWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTC-561E are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Display Configuration: 3-character, 7-segment format with common anode pin arrangement
• Electrical Specifications: 2V forward voltage and 20mA test current
• Physical Package: 12-DIP (0.600", 15.24mm) pitch housing
• Digit Size: 0.56" (14.22mm) character dimension
• Color Output: Orange-red or red wavelength range (621–630nm)

The identified substitute parts maintain these core parameters while offering active product status and improved availability compared to the obsolete LTC-561E.

Parameter Comparison

Engineering Selection Recommendations

ELT-512USOWA/S530-A4 (Everlight Electronics Co Ltd) is the primary substitute for the LTC-561E. This part maintains identical electrical specifications (2V, 20mA) and physical package dimensions while offering active product status and ROHS3 compliance. The ELT-512USOWA/S530-A4 provides higher luminous intensity (17.6mcd versus 2.4mcd) and lower maximum power dissipation (60mW versus 75mW), making it suitable for direct replacement in applications requiring orange-red output.

BA56-12EWA (Kingbright) serves as an alternative substitute with active product status and ROHS3 compliance. This part differs in color output (red versus orange-red) with a peak wavelength of 627nm compared to the LTC-561E's 630nm. The BA56-12EWA maintains identical electrical and package specifications and is appropriate for applications where red color output is acceptable within the specified wavelength range.

Both substitute parts carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original component's environmental classification.

Frequently Asked Questions (FAQ)

Q: Can the ELT-512USOWA/S530-A4 be used as a direct replacement for the LTC-561E?

A: Yes. Both parts share identical electrical specifications (2V forward voltage, 20mA test current), common anode configuration, 3-character 7-segment display format, 0.56" digit size, and 12-DIP (0.600", 15.24mm) package. The ELT-512USOWA/S530-A4 maintains orange-red color output within the acceptable wavelength range (621nm versus 630nm).

Q: What is the primary difference between the ELT-512USOWA/S530-A4 and BA56-12EWA?

A: The primary difference is color output. The ELT-512USOWA/S530-A4 produces orange-red light (621nm peak wavelength), while the BA56-12EWA produces red light (627nm peak wavelength). Both maintain identical electrical and package specifications. The ELT-512USOWA/S530-A4 also offers lower maximum power dissipation (60mW versus 75mW).

Q: Are there any lead count differences between these parts?

A: The ELT-512USOWA/S530-A4 is specified with 11 leads within the 12-DIP package, while the LTC-561E and BA56-12EWA do not specify this detail. This represents a minor variation that does not affect functional compatibility in standard 12-DIP socket applications.

Q: Do all substitute parts meet current compliance standards?

A: Yes. Both the ELT-512USOWA/S530-A4 and BA56-12EWA are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. Both parts have active product status, ensuring ongoing availability and compliance with current environmental regulations.

Q: Which substitute part should be selected for new designs?

A: Selection depends on color requirements. For orange-red output matching the original LTC-561E specification, use the ELT-512USOWA/S530-A4. For red output applications, use the BA56-12EWA. Both parts are electrically and mechanically compatible with the LTC-561E in 12-DIP socket applications.