ACSA04-41SRWA-F01 Equivalent & Substitute Parts

Part Overview

The ACSA04-41SRWA-F01 is a single-character red 7-segment LED display module manufactured by Kingbright. This component features a common anode configuration with a 0.40-inch digit height, designed for numeric and alphanumeric display applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production runs and legacy system support.

Substiute Parts

ACSA04-41SRWA-F01

KingbrightIn Stock: 860ACSA04-41SRWA-F01 Datasheet

Current PartRFQ

ACSA04-41SURKWA-F01

KingbrightIn Stock: 1342ACSA04-41SURKWA-F01 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ACSA04-41SRWA-F01 is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Display Type: 7-Segment
• Number of Characters: 1
• Digit/Alpha Size: 0.40" (10.16mm)
• Common Pin Configuration: Common Anode
• Color: Red
• Package / Case: 10-SMD, No Lead
• Physical Dimensions: 0.512" H x 0.358" W x 0.148" D (13.00mm x 9.10mm x 3.75mm)
• Current - Test: 20mA
• Power Dissipation (Max): 75mW
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 2A (4 Weeks)

Allowable Parameter Variations:

• Voltage - Forward (Vf) (Typ): Within acceptable operating range for common anode red LED displays
• Millicandela Rating: Brightness variations acceptable within application tolerance
• Wavelength - Peak: Red spectrum variations (650nm to 660nm) acceptable
• Packaging Format: Cut Tape (CT) & Digi-Reel® or Tape & Reel (TR) formats are interchangeable for procurement purposes
• Product Status: Active status preferred for long-term availability

Parameter Comparison

Engineering Selection Recommendations

The ACSA04-41SURKWA-F01 is the manufacturer-recommended substitute for the obsolete ACSA04-41SRWA-F01. Both components share identical mechanical form factors, electrical pin configurations, and compliance certifications (ROHS3 Compliant, MSL 2A).

Selection Basis:

The substitute part maintains full functional compatibility through matching display type, character count, digit size, common anode configuration, color, package type, and power specifications. The forward voltage differential of 0.10V (1.85V to 1.95V) and brightness increase from 14mcd to 27mcd represent performance enhancements within the red LED display category. The wavelength shift from 660nm to 650nm remains within the red spectrum and does not affect visual compatibility in standard display applications.

The ACSA04-41SURKWA-F01 carries active product status, ensuring continued availability and supply chain support. Both parts are manufactured by Kingbright and share the same base product number (ACSA04), confirming design lineage and compatibility.

Frequently Asked Questions (FAQ)

Q: Can the ACSA04-41SURKWA-F01 be used as a direct replacement for the ACSA04-41SRWA-F01?

A: Yes. Both parts are identical in mechanical dimensions, pin configuration, display type, and electrical test current. The substitute part is the manufacturer-recommended equivalent for the obsolete original part.

Q: What is the difference in forward voltage between these parts?

A: The ACSA04-41SRWA-F01 has a typical forward voltage of 1.85V, while the ACSA04-41SURKWA-F01 has a typical forward voltage of 1.95V. This 0.10V difference is within normal operating tolerance for common anode red LED displays and does not require circuit redesign.

Q: Why is the brightness (millicandela rating) different?

A: The substitute part (ACSA04-41SURKWA-F01) provides 27mcd compared to 14mcd in the original part. This represents improved brightness performance and is compatible with existing designs. If brightness reduction is required, current-limiting resistor values can be adjusted accordingly.

Q: Are the packaging formats interchangeable?

A: The original part is supplied in Cut Tape (CT) & Digi-Reel® format, while the substitute is supplied in Tape & Reel (TR) format. Both formats are standard SMD packaging and are compatible with automated assembly equipment. Format selection depends on procurement volume and assembly line requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ACSA04-41SRWA-F01 and ACSA04-41SURKWA-F01 are ROHS3 Compliant, REACH Unaffected, and carry identical Moisture Sensitivity Level (MSL) ratings of 2A (4 Weeks).

Q: What is the wavelength difference, and does it affect application compatibility?

A: The original part has a peak wavelength of 660nm, while the substitute has 650nm. Both wavelengths are within the red spectrum and produce visually equivalent red color output. This difference does not affect compatibility in standard display applications.