LTS-313AE 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The LTS-313AE is a 0.3" single-character 7-segment LED display manufactured by Lite-On Inc., featuring orange-red color output with common cathode configuration. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates at 2V forward voltage with 20mA test current and is housed in a 10-DIP (0.300", 7.62mm) package.

Key Parameters

Parameter	LTS-313AE Value
Display Type	7-Segment
Number of Characters	1
Digit/Alpha Size	0.30" (7.62mm)
Common Pin Configuration	Common Cathode
Color	Orange-Red
Voltage - Forward (Vf) Typical	2V
Current - Test	20mA
Package / Case	10-DIP (0.300", 7.62mm)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the LTS-313AE is determined by the following critical parameters:

Display Type: Must be 7-Segment
Number of Characters: Must be 1 character
Digit/Alpha Size: Must be 0.30" (7.62mm)
Common Pin Configuration: Must be Common Cathode
Voltage - Forward (Vf) Typical: Must be 2V or 2.1V (within acceptable operating range)
Current - Test: Must be 20mA
Package / Case: Must be 10-DIP or 14-DIP (0.300", 7.62mm) with compatible pinout

The following parts meet these substitution criteria:

LTS-313AHR (Lite-On Inc.) - Direct manufacturer equivalent with active product status
5082-7613 (Broadcom Limited) - Manufacturer-recommended substitute with 14-DIP package variant
HDSP-A403 (Broadcom Limited) - Manufacturer-recommended substitute with compact 10-DIP package

Parameter Comparison

Parameter	LTS-313AE	LTS-313AHR	5082-7613	HDSP-A403
Manufacturer	Lite-On Inc.	Lite-On Inc.	Broadcom Limited	Broadcom Limited
Display Type	7-Segment	7-Segment	7-Segment	7-Segment
Number of Characters	1	1	1	1
Digit/Alpha Size	0.30" (7.62mm)	0.30" (7.65mm)	0.30" (7.62mm)	0.30" (7.62mm)
Common Pin Configuration	Common Cathode	Common Cathode	Common Cathode	Common Cathode
Color	Orange-Red	Red	Red	Orange
Wavelength - Peak	630nm	635nm	635nm	600nm
Voltage - Forward (Vf) Typical	2V	2V	2.1V	2V
Current - Test	20mA	20mA	20mA	20mA
Millicandela Rating	2mcd	2mcd	0.8mcd	0.7mcd
Power Dissipation (Max)	75mW	75mW	105mW	105mW
Package / Case	10-DIP (0.300", 7.62mm)	10-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm), 10 Leads	10-DIP (0.200", 5.08mm)
Product Status	Obsolete	Active	Obsolete	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

LTS-313AHR is the primary substitute for direct replacement applications. This part maintains identical electrical specifications (2V, 20mA) and package format (10-DIP) as the LTS-313AE while offering active product status and ROHS3 compliance. The color shift from orange-red (630nm) to red (635nm) represents a minor wavelength variation within the red spectrum range.

HDSP-A403 provides an alternative for applications where compact form factor is advantageous. This part operates at identical voltage and current specifications but features a smaller 10-DIP (0.200", 5.08mm) package and orange color output (600nm wavelength). Active product status and ROHS3 compliance support long-term availability.

5082-7613 is suitable for legacy system maintenance where 14-DIP package compatibility exists. This part operates at 2.1V forward voltage (0.1V higher than the original) and exhibits lower brightness (0.8mcd versus 2mcd). The 14-DIP package with 10 leads requires PCB layout verification prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can LTS-313AHR be used as a direct drop-in replacement for LTS-313AE?

A: Yes. Both parts share identical electrical specifications (2V, 20mA), the same 10-DIP (0.300", 7.62mm) package, and common cathode configuration. The primary difference is color output: LTS-313AE produces orange-red (630nm) while LTS-313AHR produces red (635nm). Pinout compatibility requires verification against your specific PCB design.

Q: What are the package differences between the substitute parts?

A: LTS-313AHR and HDSP-A403 both use 10-DIP packages but differ in pitch: LTS-313AHR uses 0.300" (7.62mm) pitch matching the original, while HDSP-A403 uses 0.200" (5.08mm) pitch for a more compact footprint. The 5082-7613 uses a 14-DIP package with 10 leads, requiring different PCB layout.

Q: How do the brightness ratings compare?

A: LTS-313AE and LTS-313AHR both specify 2mcd brightness. HDSP-A403 provides 0.7mcd, and 5082-7613 provides 0.8mcd. Applications requiring the original brightness level should prioritize LTS-313AHR.

Q: Are all substitute parts RoHS compliant?

A: LTS-313AHR, 5082-7613, and HDSP-A403 are all ROHS3 compliant. The original LTS-313AE does not specify RoHS status.

Q: What is the voltage difference in the 5082-7613?

A: The 5082-7613 operates at 2.1V typical forward voltage compared to 2V for the LTS-313AE. This 0.1V difference falls within acceptable operating margins for most applications but should be verified against your circuit design specifications.

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

A: LTS-313AHR and HDSP-A403 both carry active product status, indicating ongoing manufacturing and availability. The 5082-7613 is classified as obsolete, similar to the original LTS-313AE.

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