LDS-C5642RI Equivalent & Substitute Parts

Part Overview

The LDS-C5642RI is a single-character 7-segment LED display module manufactured by Lumex Opto/Components Inc. This green display operates with common cathode configuration and is housed in a 10-DIP package. The device is classified as Active product status and maintains full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and package standardization align with the original specification, enabling direct circuit board replacement without design modification.

Substiute Parts

LDS-C5642RI

Lumex Opto/Components Inc.In Stock: 999LDS-C5642RI Datasheet

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HDSP-5603

Broadcom LimitedIn Stock: 2154HDSP-5603 Datasheet

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SC52-11GWA

KingbrightIn Stock: 2782SC52-11GWA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LDS-C5642RI are qualified based on the following criteria:

Package Compatibility: All substitute parts must use 10-DIP (0.600", 15.24mm) package configuration to ensure mechanical fit on standard PCB layouts and socket compatibility.

Electrical Configuration: Common cathode configuration is mandatory for direct pin-level compatibility without circuit redesign.

Display Characteristics: Single-character 7-segment green LED display type ensures functional equivalence.

Operating Parameters: Forward voltage (Vf), test current, and power dissipation must fall within acceptable ranges for existing circuit designs. Peak wavelength in the green spectrum (565-566nm) ensures color consistency.

Compliance Status: All substitute parts must maintain Active product status and RoHS3 compliance to meet current procurement and environmental standards.

Moisture Sensitivity: MSL rating of 1 (Unlimited) ensures equivalent handling and storage requirements.

Parameter Comparison

Engineering Selection Recommendations

HDSP-5603 (Broadcom Limited): This substitute maintains identical package configuration, common cathode pinout, and test current specification. Physical dimensions are within 0.08mm variance across all axes. Forward voltage is 0.1V lower (2.1V vs. 2.2V), which is acceptable for standard LED driver circuits. Peak wavelength (566nm) remains within green spectrum specification. Power dissipation matches the original at 105mW maximum. Product status is Active with full RoHS3 compliance and MSL 1 rating. The lower millicandela rating (2.5mcd vs. 3.9mcd) indicates reduced brightness output.

SC52-11GWA (Kingbright): This substitute provides 10-DIP package compatibility and common cathode configuration. Forward voltage matches at 2.2V. However, the test current specification is 20mA (double the original 10mA), resulting in lower maximum power dissipation (62.5mW vs. 105mW). Digit size is 0.52" (13.21mm) versus the original 0.56" (14.22mm), representing a 7% reduction in character height. Physical depth is reduced to 0.276" (7.00mm) from 0.315" (8.00mm). Millicandela rating is significantly higher at 10.5mcd. Product status is Active with full RoHS3 compliance and MSL 1 rating. The smaller character size and different current rating require circuit design verification.

All substitute parts maintain Active product status, RoHS3 compliance, and MSL 1 moisture sensitivity rating, ensuring compatibility with current procurement standards and environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can HDSP-5603 be used as a direct replacement for LDS-C5642RI without circuit modification?

A: The HDSP-5603 maintains identical 10-DIP package pinout and common cathode configuration. Forward voltage difference (2.1V vs. 2.2V) is within typical LED driver tolerance. Physical dimensions are nearly identical. Direct substitution is supported at the circuit board level without design changes.

Q: What is the primary difference between SC52-11GWA and the original LDS-C5642RI?

A: The SC52-11GWA operates at 20mA test current versus 10mA for the original, and features a smaller 0.52" character size compared to 0.56". These differences affect brightness output and visual display size. Circuit design verification is required before substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both HDSP-5603 and SC52-11GWA are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original LDS-C5642RI specification.

Q: What does the 10-DIP package designation mean?

A: 10-DIP refers to a Dual Inline Package with 10 pins, 0.600" (15.24mm) row spacing. This standardized package ensures mechanical compatibility with DIP sockets and PCB layouts designed for this form factor.

Q: Why does the HDSP-5603 have lower millicandela rating than the original?

A: Millicandela rating (2.5mcd vs. 3.9mcd) indicates brightness intensity at specified test current. The HDSP-5603 produces lower light output at 10mA. Application brightness requirements must be evaluated before selection.

Q: Can SC52-11GWA be used in space-constrained applications?

A: The SC52-11GWA has reduced depth (0.276" vs. 0.315") and smaller character size (0.52" vs. 0.56"), making it suitable for compact designs. However, the smaller display size may affect readability, and the 20mA current requirement must be accommodated in circuit design.

Q: What is the wavelength specification and why does it matter?

A: Peak wavelength (565-566nm) defines the color output in the green spectrum. All substitute parts maintain wavelength within 1nm variance, ensuring consistent green color appearance across different manufacturers.

Q: Are there inventory considerations for these substitute parts?

A: Inventory levels are provided for reference: LDS-C5642RI (980 Pcs), HDSP-5603 (2058 Pcs), SC52-11GWA (2733 Pcs). Availability may vary by distributor and time of order.