NAR131SH-F Equivalent & Substitute Parts

Part Overview

The NAR131SH-F is a single-character red 7-segment LED display module manufactured by Stanley Electric Co, packaged in a 10-DIP configuration with a 0.31" digit height. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The display operates at 1.9V forward voltage with 5mA test current and is suitable for numeric and alphanumeric display applications in compact form factors.

Substiute Parts

NAR131SH-F

Stanley Electric CoIn Stock: 1012NAR131SH-F Datasheet

Current PartRFQ

HDSP-U211

Broadcom LimitedIn Stock: 21480HDSP-U211 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NAR131SH-F is determined by the following critical parameters that must align with the original component specifications:

Primary Substitution Criteria:

• Display Type: 7-Segment configuration
• Number of Characters: Single character (1)
• Digit/Alpha Size: 0.31" (8.00mm)
• Color: Red
• Package / Case: 10-DIP (0.209", 5.30mm)
• Physical Dimensions: Compatible with 0.433" H x 0.276" W x 0.197" D envelope

Secondary Compatibility Parameters:

• Voltage - Forward (Vf): Operating voltage range must support circuit design requirements
• Current - Test: Operating current specifications
• Power Dissipation: Thermal management considerations
• RoHS and REACH Compliance: Regulatory alignment

The HDSP-U211 manufactured by Broadcom Limited meets all primary substitution criteria. Both components share identical display type, character count, digit size, color, and 10-DIP package configuration. Physical dimensions are within acceptable tolerance (height and width variance of 0.004" and 0.004" respectively). The substitute part maintains regulatory compliance with RoHS3 and REACH Unaffected status.

Parameter Comparison

Engineering Selection Recommendations

The HDSP-U211 serves as a direct substitute for the obsolete NAR131SH-F based on matching form factor, display characteristics, and regulatory compliance. Selection of this substitute part is supported by the following engineering considerations:

Product Status Alignment: The NAR131SH-F is classified as obsolete, creating supply chain risk for new production and maintenance applications. The HDSP-U211 maintains active production status with confirmed inventory availability of 21,400 units, ensuring long-term supply continuity.

Regulatory Compliance: Both components maintain full compliance with RoHS and REACH requirements. The HDSP-U211 carries ROHS3 certification, representing the current regulatory standard, while the original part holds RoHS Compliant status. Both components are classified as REACH Unaffected.

Physical and Functional Compatibility: The 10-DIP package configuration, 0.31" digit height, and single-character red 7-segment display architecture are identical between both parts. Physical dimension variance of 0.004" in width falls within standard manufacturing tolerances and does not impact PCB layout or mechanical assembly.

Electrical Parameter Considerations: The HDSP-U211 operates at 2V forward voltage compared to the NAR131SH-F at 1.9V, representing a 0.1V differential. Test current increases from 5mA to 20mA, with corresponding power dissipation increase from 37mW to 105mW. Circuit designs must accommodate these electrical parameter differences through appropriate current-limiting resistor selection and thermal management provisions.

Common Pin Configuration: The HDSP-U211 is specified as Common Anode configuration. Original circuit designs must be verified for compatibility with this pin configuration prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can the HDSP-U211 be used as a direct pin-for-pin replacement for the NAR131SH-F?

A: The HDSP-U211 shares identical 10-DIP package pinout and physical form factor with the NAR131SH-F. However, the substitute part is specified as Common Anode configuration, while the original part's common pin configuration is not specified in available documentation. Circuit designs must verify compatibility with Common Anode operation before implementation.

Q: What are the electrical differences between these two parts?

A: The HDSP-U211 operates at 2V forward voltage compared to 1.9V for the NAR131SH-F, a 0.1V increase. Test current increases from 5mA to 20mA, and maximum power dissipation increases from 37mW to 105mW. Circuit designs must be adjusted to accommodate these higher electrical requirements through appropriate resistor sizing and thermal considerations.

Q: Are both parts RoHS and REACH compliant?

A: Yes. The NAR131SH-F is RoHS Compliant and REACH Unaffected. The HDSP-U211 is ROHS3 Compliant and REACH Unaffected. Both components meet current regulatory requirements for restricted substance use and environmental compliance.

Q: What is the physical dimension difference between these parts?

A: The HDSP-U211 width is 0.280" (7.10mm) compared to 0.276" (7.00mm) for the NAR131SH-F, a variance of 0.004" (0.10mm). Height and depth dimensions are identical at 0.433" and 0.197" respectively. This minor width variance is within standard manufacturing tolerances and does not impact PCB layout compatibility.

Q: Why is the NAR131SH-F classified as obsolete?

A: The NAR131SH-F is no longer in active production by Stanley Electric Co. The HDSP-U211 represents the current active production equivalent, ensuring availability for new designs and ongoing supply for maintenance applications.

Q: What inventory availability exists for the HDSP-U211?

A: The HDSP-U211 has confirmed inventory of 21,400 units in new original condition, providing substantial supply availability compared to the obsolete NAR131SH-F status.