HDSP-K113 Equivalent & Substitute Parts

Part Overview

The HDSP-K113 is a dual-character red 7-segment LED display module manufactured by Broadcom Limited. This component is classified as an active product and is designed for numeric and alphanumeric display applications requiring common cathode configuration. The HDSP-K113 operates at 1.7V forward voltage with a 5mA test current and delivers 4.2mcd brightness at a peak wavelength of 645nm. Finding equivalent substitute parts is necessary when the original component becomes unavailable, when alternative sourcing is required, or when inventory constraints necessitate compatible alternatives that meet the same functional and mechanical specifications.

Substiute Parts

HDSP-K113

Broadcom LimitedIn Stock: 2455HDSP-K113 Datasheet

Current PartRFQ

LTD-6940HR

Lite-On Inc.In Stock: 2056LTD-6940HR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HDSP-K113 is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

• Number of Characters: 2
• Display Type: 7-Segment
• Common Pin Configuration: Common Cathode
• Color: Red
• Digit/Alpha Size: 0.56" (14.22mm)
• Package / Case: 18-DIP (0.600", 15.24mm)

Allowable Parameter Variations: Substitute parts may differ in the following electrical characteristics while maintaining functional compatibility:

• Voltage - Forward (Vf): Acceptable range determined by circuit design tolerance
• Current - Test: Acceptable range determined by circuit design tolerance
• Millicandela Rating: Acceptable range determined by application brightness requirements
• Wavelength - Peak: Acceptable range within red spectrum (typically 620nm–660nm)
• Power Dissipation (Max): Acceptable range determined by thermal design

The LTD-6940HR qualifies as a substitute because it matches all mandatory parameters while operating within acceptable electrical variations for common cathode 7-segment display applications.

Parameter Comparison

Engineering Selection Recommendations

Both the HDSP-K113 and LTD-6940HR are active products with ROHS3 compliance and MSL Level 1 rating, making them suitable for production applications. The HDSP-K113 is manufactured by Broadcom Limited, while the LTD-6940HR is manufactured by Lite-On Inc. Both components share identical mechanical and package specifications, ensuring direct pin-compatible substitution in 18-DIP socket applications.

The LTD-6940HR operates at higher forward voltage (2V vs. 1.7V) and higher test current (20mA vs. 5mA), resulting in increased power dissipation (75mW vs. 37mW). The LTD-6940HR exhibits lower brightness (2.4mcd vs. 4.2mcd) and a slightly shorter peak wavelength (635nm vs. 645nm), remaining within the red spectrum range. Selection between these components should be based on circuit design requirements for voltage, current, and thermal management capacity, as well as brightness requirements for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the LTD-6940HR be used as a direct replacement for the HDSP-K113 in existing PCB designs?

A: Yes, the LTD-6940HR is pin-compatible with the HDSP-K113 due to matching 18-DIP package specifications and common cathode configuration. However, circuit design parameters such as current-limiting resistor values and power supply voltage must be evaluated to accommodate the LTD-6940HR's higher forward voltage (2V) and higher test current (20mA).

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

A: The LTD-6940HR operates at 2V forward voltage compared to the HDSP-K113's 1.7V, and requires 20mA test current versus 5mA. The LTD-6940HR dissipates 75mW maximum power versus 37mW for the HDSP-K113. The LTD-6940HR provides 2.4mcd brightness versus 4.2mcd for the HDSP-K113, with a peak wavelength of 635nm versus 645nm.

Q: Are both parts compliant with current regulatory standards?

A: Yes, both the HDSP-K113 and LTD-6940HR are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, meeting current regulatory requirements for production applications.

Q: What packaging formats are available for these components?

A: The HDSP-K113 is supplied in Bulk packaging, while the LTD-6940HR is supplied in Tube packaging. Both components use identical 18-DIP (0.600", 15.24mm) case format for circuit board integration.

Q: How do the brightness specifications compare between these displays?

A: The HDSP-K113 delivers 4.2mcd at 645nm peak wavelength, while the LTD-6940HR delivers 2.4mcd at 635nm peak wavelength. Application brightness requirements should determine which component is appropriate for the intended use case.