LTS-312AE 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The LTS-312AE is a 0.30" single-character 7-segment LED display manufactured by Lite-On Inc., configured as a common anode device with orange-red color output. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The display operates at 2V forward voltage with 20mA test current and is housed in a 14-DIP (0.300", 7.62mm) package with 11 leads.

Substiute Parts

LTS-312AE

Lite-On Inc.In Stock: 775LTS-312AE Datasheet

Current PartRFQ

5082-7610

Broadcom LimitedIn Stock: 33325082-7610 Datasheet

MFR RecommendedRFQ

5082-7611

Broadcom LimitedIn Stock: 20395082-7611 Datasheet

MFR RecommendedRFQ

ELS-322USOWA/S530-A4

Everlight Electronics Co LtdIn Stock: 801ELS-322USOWA/S530-A4 Datasheet

MFR RecommendedRFQ

HDSP-A401

Broadcom LimitedIn Stock: 902HDSP-A401 Datasheet

MFR RecommendedRFQ

SA03-11EWA

KingbrightIn Stock: 1077SA03-11EWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTS-312AE are grouped based on strict electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

• Display Type: 7-Segment (single character)
• Common Pin Configuration: Common Anode
• Digit/Alpha Size: 0.30" (7.62mm)
• Voltage - Forward (Vf) Typical: 2V or 2.1V
• Current - Test: 20mA
• Package / Case: 14-DIP (0.300", 7.62mm) or 10-DIP (0.200", 5.08mm)

Grouping Logic:

Group 1 - Direct Mechanical & Electrical Match (14-DIP, Common Anode, 0.30" digit size):

• ELS-322USOWA/S530-A4 (Everlight Electronics): Orange-Red color, 2V Vf, 14-DIP package, active status
• SA03-11EWA (Kingbright): Red color, 2V Vf, 14-DIP package, active status

Group 2 - Electrical Match with Color Variation (14-DIP, Common Anode, 0.30" digit size, Red instead of Orange-Red):

• 5082-7610 (Broadcom Limited): Red color, 2.1V Vf, 14-DIP package, active status
• 5082-7611 (Broadcom Limited): Red color, 2.1V Vf, 14-DIP package, active status

Group 3 - Electrical Match with Package Variation (10-DIP, Common Anode, 0.30" digit size):

• HDSP-A401 (Broadcom Limited): Orange color, 2V Vf, 10-DIP package, active status

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No PCB Redesign Required):

ELS-322USOWA/S530-A4 is the primary substitute for the LTS-312AE. This part maintains identical package configuration (14-DIP with 11 leads), common anode topology, 0.30" digit size, and 2V forward voltage. The part is active status with ROHS3 compliance and unlimited moisture sensitivity rating. Color specification is orange-red, matching the original device. Inventory availability is 702 units.

For Applications Tolerant of Color Variation:

SA03-11EWA (Kingbright) provides electrical and mechanical compatibility with red color output instead of orange-red. Forward voltage remains at 2V, package is 14-DIP, and the part is active with ROHS3 compliance. This option offers 1020 units in inventory.

For Applications Tolerant of Forward Voltage Increase:

5082-7610 and 5082-7611 (Broadcom Limited) are functionally equivalent with 2.1V forward voltage and red color. Both maintain 14-DIP package configuration and common anode topology. These parts are active status with ROHS3 compliance. Inventory availability is 3300 units (5082-7610) and 2000 units (5082-7611).

For Applications Requiring Package Redesign:

HDSP-A401 (Broadcom Limited) is compatible electrically and functionally but requires PCB layout modification due to 10-DIP package (0.200", 5.08mm) versus the original 14-DIP (0.300", 7.62mm). Forward voltage is 2V and color is orange. This part is active status with ROHS3 compliance and 883 units in inventory.

Frequently Asked Questions (FAQ)

Q: Can I use the 5082-7610 or 5082-7611 as a direct replacement for the LTS-312AE?

A: Yes, electrically and mechanically. Both parts are 14-DIP common anode 7-segment displays with 0.30" digit size and 20mA test current. The forward voltage is 2.1V compared to 2V in the original, which is within acceptable tolerance for most applications. Color is red instead of orange-red. No PCB redesign is required.

Q: What is the key difference between ELS-322USOWA/S530-A4 and SA03-11EWA?

A: Both are 14-DIP common anode 7-segment displays with 0.30" digit size and 2V forward voltage. The primary difference is color: ELS-322USOWA/S530-A4 is orange-red (matching the original LTS-312AE), while SA03-11EWA is red. ELS-322USOWA/S530-A4 also has higher brightness (17.6mcd versus 8.1mcd).

Q: Why is HDSP-A401 listed as a substitute if it has a different package?

A: HDSP-A401 maintains electrical compatibility (common anode, 0.30" digit size, 2V forward voltage, 20mA test current, 7-segment display) but uses a 10-DIP package instead of 14-DIP. This part is included for applications where PCB redesign is feasible. The smaller package footprint may be advantageous in space-constrained designs.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed (ELS-322USOWA/S530-A4, SA03-11EWA, 5082-7610, 5082-7611, and HDSP-A401) are ROHS3 compliant. The original LTS-312AE does not specify RoHS status due to its obsolete classification.

Q: What is the brightness difference between the LTS-312AE and its substitutes?

A: The LTS-312AE has a millicandela rating of 2mcd. Substitutes vary: ELS-322USOWA/S530-A4 (17.6mcd), SA03-11EWA (8.1mcd), 5082-7610 and 5082-7611 (0.8mcd each), and HDSP-A401 (0.7mcd). Brightness differences may affect visual performance in specific lighting conditions.

Q: Can I use multiple substitute parts interchangeably in the same design?

A: Parts within the same grouping (same package, voltage, and configuration) are mechanically interchangeable. However, brightness and color variations should be considered for applications where consistent visual output is critical. Parts from different groupings (such as HDSP-A401 with its 10-DIP package) require PCB layout changes and are not interchangeable without redesign.

Q: What is the moisture sensitivity level for all these parts?

A: All parts, including the original LTS-312AE and all substitutes, have Moisture Sensitivity Level (MSL) 1, which indicates unlimited moisture sensitivity. This means no special moisture control measures are required during storage or handling.