LA-301VB 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The LA-301VB is a single-character, 0.31-inch red 7-segment LED display manufactured by Rohm Semiconductor in a 10-DIP package configuration. This common anode display operates at 2V forward voltage with a 10mA test current and delivers 10 millicandela brightness at 650nm peak wavelength. The component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are necessary when addressing specific application requirements for forward voltage, current consumption, brightness output, or packaging preferences while maintaining functional and mechanical compatibility.

Substiute Parts

LA-301VB

Rohm SemiconductorIn Stock: 8455LA-301VB Datasheet

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HDSP-U211

Broadcom LimitedIn Stock: 21480HDSP-U211 Datasheet

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HDSP-U101

Broadcom LimitedIn Stock: 1706HDSP-U101 Datasheet

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HDSP-U111

Broadcom LimitedIn Stock: 2263HDSP-U111 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LA-301VB is determined by strict adherence to the following parameters:

Fixed Requirements (Non-Negotiable):

• Display Type: 7-Segment, single character
• Common Pin Configuration: Common Anode
• Digit Size: 0.31" (8.00mm)
• Color: Red
• Package / Case: 10-DIP (0.209", 5.30mm)
• RoHS Status: ROHS3 Compliant

Variable Parameters (Allowed Substitution Range):

• Voltage - Forward (Vf): 1.7V to 2V
• Current - Test: 5mA to 20mA
• Millicandela Rating: 3.6mcd to 10mcd
• Wavelength - Peak: 635nm to 650nm
• Power Dissipation (Max): 37mW to 105mW

All substitute parts listed maintain identical mechanical dimensions, package configuration, and electrical interface compatibility with the LA-301VB while operating within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

LA-301VB (Rohm Semiconductor): Primary selection for applications requiring 2V forward voltage, 10mA test current, and 10mcd brightness output. Bulk packaging suitable for high-volume manufacturing. Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

HDSP-U101 (Broadcom Limited): Substitute for low-power applications requiring reduced forward voltage (1.7V) and current consumption (5mA). Delivers 3.6mcd brightness with 37mW maximum power dissipation. Tube packaging. Active product status with full RoHS3 compliance.

HDSP-U111 (Broadcom Limited): Functionally equivalent to HDSP-U101 with identical electrical specifications (1.7V, 5mA, 3.6mcd, 37mW). Bulk packaging option for high-volume applications. Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

HDSP-U211 (Broadcom Limited): Substitute for high-brightness applications requiring increased current capacity (20mA) and brightness output (5.39mcd). Forward voltage matches LA-301VB at 2V. Maximum power dissipation of 105mW. Tube packaging. Active product status with full RoHS3 compliance.

All substitute parts maintain identical mechanical compatibility, 10-DIP package configuration, and common anode interface with the LA-301VB. Selection depends on specific application requirements for voltage, current, and brightness parameters.

Frequently Asked Questions (FAQ)

Q: Can HDSP-U101 or HDSP-U111 directly replace LA-301VB in existing designs?

A: Direct replacement requires circuit redesign. HDSP-U101 and HDSP-U111 operate at 1.7V forward voltage versus LA-301VB's 2V, and deliver 3.6mcd brightness versus 10mcd. Current-limiting resistor values must be recalculated for the 5mA test current specification. Mechanical and electrical interface compatibility is maintained through identical 10-DIP package configuration and common anode pin arrangement.

Q: What is the brightness difference between LA-301VB and HDSP-U211?

A: LA-301VB delivers 10mcd at 650nm peak wavelength. HDSP-U211 delivers 5.39mcd at 635nm peak wavelength. The wavelength shift represents a color variation within the red spectrum. HDSP-U211 operates at 20mA test current versus LA-301VB's 10mA, resulting in higher power dissipation (105mW versus 40mW).

Q: Are packaging differences between Bulk and Tube significant for substitution?

A: Packaging format (Bulk versus Tube) affects supply chain logistics and handling but does not impact electrical or mechanical compatibility. Component performance and interface specifications remain identical regardless of packaging format.

Q: Do all substitute parts meet the same compliance standards as LA-301VB?

A: All listed substitute parts are ROHS3 compliant, REACH unaffected, and classified as Active product status. Moisture sensitivity level is unlimited (MSL 1) for all parts. ECCN and HTSUS classifications are identical across all parts.

Q: Which substitute part provides the lowest power consumption?

A: HDSP-U101 and HDSP-U111 provide the lowest power consumption at 37mW maximum power dissipation, compared to LA-301VB's 40mW and HDSP-U211's 105mW. Both operate at 1.7V forward voltage and 5mA test current.

Q: Can HDSP-U211 be used in applications designed for LA-301VB?

A: HDSP-U211 maintains identical forward voltage (2V) and 10-DIP package configuration with LA-301VB, enabling direct electrical interface compatibility. However, the increased test current specification (20mA versus 10mA) and higher power dissipation (105mW versus 40mW) require verification that the circuit design can accommodate these parameters. Brightness output differs at 5.39mcd versus 10mcd.