NARG161 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The NARG161 is a single-character, 7-segment LED display module manufactured by Stanley Electric Co. This component features a 0.60" digit height with dual-color capability (green and red) in a common anode configuration. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and new production applications requiring compatible alternatives.

The NARG161 operates at forward voltages of 2V (green) and 1.7V (red) with a test current of 10mA, housed in a standard 10-DIP package measuring 0.600" (15.24mm) pitch.

Substiute Parts

NARG161

Stanley Electric CoIn Stock: 893NARG161 Datasheet

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LDS-A5152RI

Lumex Opto/Components Inc.In Stock: 788LDS-A5152RI Datasheet

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SBA56-21EGWA

KingbrightIn Stock: 844SBA56-21EGWA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the NARG161 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Compatibility Criteria:

• Display Type: 7-Segment LED (single character)
• Common Pin Configuration: Common Anode
• Package / Case: 10-DIP (0.600", 15.24mm)
• Color Capability: Green and Red dual-color
• Current Rating: 10mA test current
• Physical Footprint: Compatible with 0.600" DIP spacing

Secondary Compatibility Considerations:

• Forward voltage ranges (Vf) within acceptable operating margins
• Digit/Alpha size proximity (0.56" to 0.60")
• Overall physical dimensions allowing PCB layout compatibility
• Millicandela rating and wavelength specifications for optical performance

The substitute parts listed below meet all primary criteria and maintain functional equivalence within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The NARG161 is classified as obsolete. Both substitute parts—LDS-A5152RI (Lumex Opto/Components Inc.) and SBA56-21EGWA (Kingbright)—are active products with current manufacturing support and availability.

Compliance and Certification: Both substitute parts carry ROHS3 compliance certification, meeting current environmental and regulatory requirements. The NARG161 does not specify RoHS status. Both substitutes maintain REACH Unaffected status, consistent with the original part.

Electrical Compatibility: The LDS-A5152RI and SBA56-21EGWA operate within acceptable forward voltage ranges relative to the NARG161. The SBA56-21EGWA demonstrates closer voltage alignment with the original part (2V green, 1.9V red versus 2V, 1.7V). Both parts maintain the 10mA test current specification.

Mechanical Compatibility: All three parts use the 10-DIP (0.600", 15.24mm) package with compatible PCB footprints. Physical dimensions are within 0.002" to 0.010" variance across height, width, and depth, ensuring direct board-level substitution without layout modification.

Optical Performance: The SBA56-21EGWA provides higher millicandela ratings (11mcd green, 8mcd red) compared to the NARG161 (2.4mcd both colors), offering improved brightness. The LDS-A5152RI provides intermediate brightness levels. Wavelength specifications for both substitutes fall within acceptable ranges for standard 7-segment display applications.

Recommended Selection: For applications requiring closest electrical and optical performance to the original NARG161, the SBA56-21EGWA is the primary substitute. For applications where lower brightness is acceptable, the LDS-A5152RI provides an alternative with active product status and full compliance certification.

Frequently Asked Questions (FAQ)

Q: Can the LDS-A5152RI or SBA56-21EGWA be used as direct replacements for the NARG161 without PCB modifications?

A: Yes. Both substitute parts use the identical 10-DIP (0.600", 15.24mm) package with compatible pinout configurations. Physical dimensions vary by less than 0.010" in any axis, allowing direct board-level substitution without layout changes.

Q: What are the key electrical differences between the NARG161 and its substitutes?

A: The primary differences are forward voltage specifications. The NARG161 operates at 2V (green) and 1.7V (red). The SBA56-21EGWA operates at 2V (green) and 1.9V (red), representing a 0.2V variance on the red channel. The LDS-A5152RI operates at 2.2V (green) and 2V (red), representing 0.2V and 0.3V variances respectively. All parts maintain 10mA test current. These voltage differences are within typical design margins for LED display circuits using current-limiting resistor networks.

Q: How do the brightness levels compare between these parts?

A: The NARG161 provides 2.4mcd for both green and red. The SBA56-21EGWA provides significantly higher brightness at 11mcd (green) and 8mcd (red). The LDS-A5152RI provides intermediate brightness at 3.9mcd (green) and 0.8mcd (red). Selection depends on application visibility requirements and ambient lighting conditions.

Q: Are both substitute parts currently available?

A: Yes. The LDS-A5152RI (Lumex) and SBA56-21EGWA (Kingbright) are both classified as active products with current manufacturing support. The NARG161 is obsolete and no longer manufactured.

Q: Do the substitute parts meet current environmental and regulatory standards?

A: Yes. Both the LDS-A5152RI and SBA56-21EGWA carry ROHS3 compliance certification and maintain REACH Unaffected status, meeting current environmental regulations. The NARG161 does not specify RoHS compliance.

Q: What is the wavelength difference between the NARG161 and its substitutes?

A: The NARG161 green wavelength is 570nm; substitutes are 565nm (both LDS-A5152RI and SBA56-21EGWA). The NARG161 red wavelength is 660nm; the LDS-A5152RI is 700nm and the SBA56-21EGWA is 627nm. These differences represent minor color shifts within the standard green and red LED spectrum ranges and are not typically perceptible in standard display applications.

Q: Can I use either substitute interchangeably, or should I select one over the other?

A: Both parts are functionally compatible. Selection should be based on specific application requirements: the SBA56-21EGWA for applications requiring higher brightness and closer voltage matching to the original NARG161; the LDS-A5152RI for applications where lower brightness is acceptable and alternative sourcing is preferred.