HDSP-A42C Equivalent & Substitute Parts

Part Overview

The HDSP-A42C is a 14-segment alphanumeric LED display module manufactured by Broadcom Limited, designed for numeric and character display applications. This component features a quad red display with 0.54" character size in a 36-DIP module configuration. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations where equivalent functionality is required.

Substiute Parts

HDSP-A42C

Broadcom LimitedIn Stock: 923HDSP-A42C Datasheet

Current PartRFQ

ASMT-JH13-AST01

Broadcom LimitedIn Stock: 1012ASMT-JH13-AST01 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HDSP-A42C is constrained by the following critical parameters that must align between the main part and any substitute:

Display Characteristics:

• Display type: 14-segment alphanumeric configuration
• Character count: 4 characters
• Character size: 0.54" (13.72mm)
• Common pin configuration: Common anode

Electrical Specifications:

• Color: Red
• Forward voltage: 1.9V typical
• Test current: 20mA
• Wavelength peak: 626nm
• Millicandela rating: 25mcd ~ 80mcd range

Physical & Environmental:

• Package type: 36-DIP Module (0.600", 15.24mm pitch)
• Dimensions: 0.833" H x 2.006" W x 0.276" D
• Moisture sensitivity: Level 1 (Unlimited)

The identified substitute ASMT-JH13-AST01 represents a discrete LED component rather than a complete display module. This substitution applies only in applications where individual LED indication is acceptable and the multi-character alphanumeric display functionality of the HDSP-A42C is not required.

Parameter Comparison

Engineering Selection Recommendations

The HDSP-A42C is an obsolete product, necessitating alternative component selection for new designs or system replacements. The ASMT-JH13-AST01 is an active product from the same manufacturer with identical moisture sensitivity classification and REACH compliance status.

However, the ASMT-JH13-AST01 is a discrete LED component and cannot directly replace the HDSP-A42C in applications requiring multi-character alphanumeric display functionality. This substitute is applicable only where:

• Single LED indication is sufficient
• The application does not require character or numeric display capability
• The transition from DIP module packaging to surface-mount technology is acceptable

For applications requiring equivalent 14-segment alphanumeric display functionality, alternative display modules from Broadcom Limited or other manufacturers with matching electrical and mechanical specifications must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can the ASMT-JH13-AST01 directly replace the HDSP-A42C in existing designs?

A: No. The ASMT-JH13-AST01 is a discrete LED component, not a display module. It cannot provide the 4-character, 14-segment alphanumeric display functionality of the HDSP-A42C. Substitution is only valid in applications where single LED indication is acceptable.

Q: What are the key differences in package type between these components?

A: The HDSP-A42C uses a 36-DIP Module package (0.600", 15.24mm pitch) with through-hole mounting. The ASMT-JH13-AST01 uses a 6-SMD, Flat Lead Exposed Pad package for surface-mount assembly. These are incompatible mounting technologies.

Q: Are both components compliant with environmental regulations?

A: Yes. Both the HDSP-A42C and ASMT-JH13-AST01 have REACH Unaffected status and Moisture Sensitivity Level 1 (Unlimited). The ASMT-JH13-AST01 additionally carries ROHS3 compliance certification.

Q: Why is the HDSP-A42C classified as obsolete?

A: The HDSP-A42C is an older DIP-based display module. Broadcom has transitioned to newer display technologies and surface-mount packaging formats. Obsolete status indicates the component is no longer in active production.

Q: What should I do if I need a replacement display module with equivalent functionality?

A: Evaluate current-generation 14-segment alphanumeric display modules from Broadcom Limited or alternative manufacturers that match the electrical specifications (1.9V forward voltage, 20mA test current, 626nm wavelength, common anode configuration) and physical requirements (0.54" character size, 4-character configuration).