WP73JB/IDA LED Circuit Board Indicator Equivalent & Substitute Parts

Part Overview

The WP73JB/IDA is an active LED circuit board indicator manufactured by Kingbright, designed for through-hole, right-angle mounting applications. This single red diffused LED operates at 2V with a 30mA current rating and delivers 40 millicandela brightness at a 60° viewing angle. The component features a 4.80mm diameter domed lens and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits alternative specifications within acceptable electrical and mechanical parameters.

Substiute Parts

WP73JB/IDA

KingbrightIn Stock: 1159WP73JB/IDA Datasheet

Current PartRFQ

XVB1LUR50D

SunLEDIn Stock: 8464XVB1LUR50D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WP73JB/IDA is determined by the following critical parameters:

Optical Compatibility: The substitute part must match the peak wavelength (627nm) and color (red) to maintain visual consistency and circuit board indicator functionality. The millicandela rating (40mcd) and viewing angle (60°) establish the brightness and visibility envelope for the application.

Electrical Compatibility: The substitute part must operate within acceptable voltage and current ranges. The WP73JB/IDA operates at 2V/30mA; substitute parts with lower voltage ratings (1.9V) and reduced current requirements (10mA) are acceptable when the circuit design accommodates current-limiting resistor adjustment.

Mechanical Compatibility: The substitute part must support through-hole, right-angle mounting to ensure PCB integration without redesign. Lens diameter variations (4.80mm to 5.00mm) are acceptable within standard circuit board indicator footprints.

Compliance & Environmental: All substitute parts must maintain ROHS3 compliance and MSL 1 rating to ensure regulatory alignment and manufacturing process compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (WP73JB/IDA): Use the Kingbright WP73JB/IDA when original specification compliance is required and inventory is available. This part maintains exact electrical and optical parameters as originally designed.

Substitute Selection (XVB1LUR50D): The SunLED XVB1LUR50D is acceptable as a substitute when the WP73JB/IDA is unavailable. Both parts are ROHS3 compliant with MSL 1 ratings, ensuring regulatory and manufacturing process alignment.

Circuit Design Considerations: The XVB1LUR50D operates at 1.9V/10mA compared to the WP73JB/IDA at 2V/30mA. Circuit designers must recalculate current-limiting resistor values to accommodate the lower operating current. The reduced current consumption may improve overall circuit efficiency.

Optical Appearance: The XVB1LUR50D uses a diffused lens without tinting, whereas the WP73JB/IDA includes tinting. This may result in a slight visual difference in color saturation under identical lighting conditions, though both maintain the same peak wavelength (627nm) and brightness rating (40mcd).

Frequently Asked Questions (FAQ)

Q: Can the XVB1LUR50D directly replace the WP73JB/IDA without circuit modification?

A: No. The XVB1LUR50D operates at 1.9V/10mA versus the WP73JB/IDA at 2V/30mA. The circuit current-limiting resistor must be recalculated to accommodate the lower operating current. Direct substitution without resistor adjustment will result in incorrect LED brightness and potential component damage.

Q: Are the optical characteristics identical between these parts?

A: Both parts share the same peak wavelength (627nm), color (red), millicandela rating (40mcd), and viewing angle (60°). The primary optical difference is lens tinting: the WP73JB/IDA includes tinting while the XVB1LUR50D does not. This may produce a slight visual difference in color saturation.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the WP73JB/IDA and XVB1LUR50D are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity ratings. They are suitable for equivalent regulatory and manufacturing environments.

Q: What is the mechanical compatibility between these parts?

A: Both parts support through-hole, right-angle mounting. The WP73JB/IDA features a 4.80mm diameter lens while the XVB1LUR50D features a 5.00mm diameter lens. Both sizes are compatible with standard circuit board indicator footprints.

Q: Which part should be selected for new designs?

A: For new designs, select based on availability and circuit power budget. The WP73JB/IDA provides the original specification. The XVB1LUR50D offers reduced power consumption (10mA vs. 30mA) if the circuit design permits lower operating current.