SC08-12GWA Equivalent & Substitute Parts

Part Overview

The SC08-12GWA is a single-character 7-segment LED display module manufactured by Kingbright. This green display operates with a common cathode configuration and is housed in a 16-DIP package. The product is currently active and widely used in numeric display applications requiring compact form factors and standard DIP mounting.

Substitute parts are identified when equivalent display modules share the same mechanical envelope, electrical interface topology, and core functional characteristics. Alternative sources become necessary due to inventory availability, supply chain considerations, or specific application requirements.

Key Parameters

Parameter	Value	Significance for Substitution
Display Type	7-Segment	Determines segment configuration and display capability
Number of Characters	1	Single character display format
Common Pin Configuration	Common Cathode	Defines electrical interface and driver circuit requirements
Digit/Alpha Size	0.80" (20.32mm)	Physical display size; critical for mechanical fit
Package / Case	16-DIP (0.600", 15.24mm)	Mechanical footprint and PCB mounting compatibility
Color	Green	Wavelength and visual output specification
Wavelength - Peak	565nm	Optical characteristic; defines green color specification
Voltage - Forward (Vf) (Typ)	2.2V	Operating voltage; affects circuit design and current limiting
Current - Test	20mA	Nominal operating current; determines power supply requirements
Millicandela Rating	13mcd	Brightness specification
Size / Dimension	1.091" H x 0.787" W x 0.331" D (27.70mm x 20.00mm x 8.40mm)	Overall mechanical envelope; critical for housing and assembly fit
RoHS Status	ROHS3 Compliant	Environmental and regulatory compliance
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Storage and handling requirements

Substitute Part Grouping Explanation

Substitute parts for the SC08-12GWA are identified based on strict equivalence across the following critical parameters:

Mechanical Compatibility:

Package type: 16-DIP (0.600", 15.24mm)
Overall dimensions: 1.091" H x 0.787" W x 0.331" D
Digit size: 0.80" (20.32mm)

Electrical Interface:

Display type: 7-Segment
Configuration: Common Cathode
Number of characters: 1

Optical Specification:

Color: Green
Wavelength - Peak: 565nm

Regulatory Compliance:

RoHS3 Compliant
REACH Unaffected
MSL: 1 (Unlimited)

The LDS-C812RI from Lumex Opto/Components Inc. qualifies as a substitute based on matching all mechanical, electrical interface, and optical parameters. Variations in forward voltage (2V vs. 2.2V), test current (10mA vs. 20mA), brightness rating (2.5mcd vs. 13mcd), and power dissipation are secondary characteristics that do not prevent functional substitution in applications where the display module is selected for its form factor and interface topology.

Parameter Comparison

Parameter	SC08-12GWA (Kingbright)	LDS-C812RI (Lumex)	Match Status
Manufacturer Part Number	SC08-12GWA	LDS-C812RI	Different
Display Type	7-Segment	7-Segment	Match
Number of Characters	1	1	Match
Common Pin Configuration	Common Cathode	Common Cathode	Match
Digit/Alpha Size	0.80" (20.32mm)	0.80" (20.32mm)	Match
Package / Case	16-DIP (0.600", 15.24mm)	16-DIP (0.600", 15.24mm), 13 Leads	Match
Color	Green	Green	Match
Wavelength - Peak	565nm	565nm	Match
Size / Dimension	1.091" H x 0.787" W x 0.331" D (27.70mm x 20.00mm x 8.40mm)	1.091" H x 0.787" W x 0.331" D (27.70mm x 20.00mm x 8.40mm)	Match
Voltage - Forward (Vf) (Typ)	2.2V	2V	Variation
Current - Test	20mA	10mA	Variation
Millicandela Rating	13mcd	2.5mcd	Variation
Power Dissipation (Max)	62.5mW	120mW	Variation
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Match
Product Status	Active	Active	Match

Engineering Selection Recommendations

Primary Selection Criteria:

The SC08-12GWA remains the specified part when the application requires the exact brightness level (13mcd) and power characteristics (62.5mW maximum dissipation, 20mA test current) defined in the original design.

Substitution Conditions:

The LDS-C812RI qualifies as a direct substitute when:

The application can accommodate lower brightness output (2.5mcd vs. 13mcd)
The circuit design permits operation at 2V forward voltage instead of 2.2V
The lower test current specification (10mA) aligns with power budget requirements
Mechanical fit within the 16-DIP footprint is confirmed
Both parts maintain ROHS3 compliance and MSL Level 1 status

Compliance Verification:

Both parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (unlimited moisture sensitivity). No additional compliance screening is required for substitution.

Frequently Asked Questions (FAQ)

Q: Can the LDS-C812RI replace the SC08-12GWA in existing designs without PCB modification?

A: Yes. Both parts use identical 16-DIP (0.600", 15.24mm) packaging and share the same mechanical envelope (1.091" H x 0.787" W x 0.331" D). No PCB layout changes are required. However, the forward voltage difference (2V vs. 2.2V) may require adjustment to current-limiting resistor values in the driver circuit.

Q: What is the impact of the brightness difference between these parts?

A: The SC08-12GWA produces 13mcd while the LDS-C812RI produces 2.5mcd. This represents a significant reduction in brightness. Applications requiring high visibility in bright ambient light conditions should retain the SC08-12GWA. Applications in controlled lighting environments may tolerate the lower brightness of the LDS-C812RI.

Q: Are there electrical interface differences between these parts?

A: Both parts use common cathode configuration with identical 7-segment display topology. The electrical interface is functionally equivalent. The primary difference is the forward voltage specification (2.2V vs. 2V), which affects current-limiting resistor calculations but does not change the interface logic.

Q: What is the significance of the 16-DIP package notation "13 Leads" for the LDS-C812RI?

A: The LDS-C812RI is specified with 13 active leads within the 16-DIP package footprint. This indicates that not all 16 DIP positions are utilized. Verify pinout compatibility with the original SC08-12GWA design before substitution.

Q: Can these parts be used interchangeably in high-volume production?

A: Interchangeability depends on design tolerance for brightness variation and forward voltage differences. If the application design includes adjustable current-limiting resistors or accepts brightness variation, substitution is feasible. If the design is optimized for the specific 13mcd brightness and 2.2V forward voltage of the SC08-12GWA, substitution may require circuit redesign.

Q: Are there any storage or handling differences between these parts?

A: Both parts carry MSL Level 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Storage and handling procedures are equivalent.

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