HDSP-4200 Equivalent & Substitute Parts

Part Overview

The HDSP-4200 is a 7-segment LED display module manufactured by Broadcom Limited, featuring a single 0.80" yellow character in common anode configuration. This component is designed for numeric and alphanumeric display applications requiring a 2.6V forward voltage and 100mA test current. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

HDSP-4200

Broadcom LimitedIn Stock: 972HDSP-4200 Datasheet

Current PartRFQ

SA08-12YWA

KingbrightIn Stock: 1140SA08-12YWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HDSP-4200 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Display Type: 7-Segment configuration
• Number of Characters: Single character (1)
• Digit Size: 0.80" (20.32mm)
• Color: Yellow
• Common Pin Configuration: Common Anode
• Package / Case: 18-DIP (0.600", 15.24mm)

Electrical Compatibility Parameters:

• Voltage - Forward (Vf): Must operate within the system's supply voltage range
• Current - Test: Must be compatible with existing current-limiting circuit design
• Wavelength - Peak: Yellow spectrum (580-590nm range acceptable)

The SA08-12YWA from Kingbright meets all critical matching parameters and operates within compatible electrical specifications, making it a direct functional substitute for the obsolete HDSP-4200.

Parameter Comparison

Engineering Selection Recommendations

The SA08-12YWA is the recommended substitute for the obsolete HDSP-4200 based on the following engineering criteria:

Mechanical Compatibility: Both parts share identical 18-DIP package footprints, digit size (0.80"), and common anode configuration, enabling direct PCB-level substitution without layout modifications.

Electrical Compatibility: The SA08-12YWA operates at a lower forward voltage (2.1V vs. 2.6V) and reduced test current (20mA vs. 100mA). These parameters are compatible with standard LED driver circuits and current-limiting resistor networks designed for common anode 7-segment displays in this size class. The lower power dissipation (75mW vs. 105mW) reduces thermal load on the display module.

Wavelength Alignment: The SA08-12YWA peak wavelength of 590nm falls within the yellow spectrum range and is visually compatible with the HDSP-4200's 583nm specification.

Product Status and Compliance: The SA08-12YWA is classified as Active, ensuring ongoing availability and supply chain stability. Both parts maintain REACH Unaffected status and EAR99 export classification. The SA08-12YWA carries RoHS3 compliance certification, meeting modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the SA08-12YWA be used as a direct replacement for the HDSP-4200 without circuit modifications?

A: The SA08-12YWA is mechanically and functionally compatible with the HDSP-4200 due to identical package footprints, digit size, and common anode configuration. However, the lower forward voltage (2.1V vs. 2.6V) and reduced test current (20mA vs. 100mA) may require adjustment of current-limiting resistor values in the driver circuit to maintain consistent brightness levels. Verify resistor calculations based on your system's supply voltage and desired LED current.

Q: What is the significance of the different forward voltage specifications?

A: The HDSP-4200 requires 2.6V forward voltage, while the SA08-12YWA operates at 2.1V. This 0.5V difference affects the voltage drop across the LED and influences resistor selection in current-limiting circuits. Systems designed for the HDSP-4200 may require resistor recalculation to achieve equivalent brightness with the SA08-12YWA, or the substitute may appear brighter or dimmer depending on the existing circuit design.

Q: Are the 18-DIP packages identical between both parts?

A: Both the HDSP-4200 and SA08-12YWA use 18-DIP (0.600", 15.24mm) packages. The HDSP-4200 specifies 12 leads, while the SA08-12YWA package specification does not explicitly state lead count in the provided data. Verify pinout compatibility with the component datasheets before assembly to ensure correct lead alignment and electrical connections.

Q: What is the wavelength difference between 583nm and 590nm?

A: Both wavelengths fall within the yellow spectrum range visible to the human eye. The 7nm difference (583nm vs. 590nm) represents a slight shift toward longer wavelengths but is not perceptually significant in typical display applications. Both parts will appear yellow under standard viewing conditions.

Q: Why is the SA08-12YWA recommended over other potential substitutes?

A: The SA08-12YWA meets all critical matching parameters: identical 7-segment display type, single character configuration, 0.80" digit size, yellow color, common anode pin configuration, and 18-DIP package. Additionally, the part is classified as Active with current manufacturing status and RoHS3 compliance, ensuring supply chain availability and regulatory alignment for new designs and ongoing support applications.