Equivalent & Substitute Parts for WP7104F3C

Part Overview

The WP7104F3C is an Infrared (IR) Emitter manufactured by Kingbright, designed for 940nm wavelength applications requiring 50mA forward current operation. This component is classified as Obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The part operates at 1.2V forward voltage with a radiant intensity of 7mW/sr at 50mA and features a 34° viewing angle in a T-1 through-hole package configuration.

Substiute Parts

WP7104F3C

KingbrightIn Stock: 826WP7104F3C Datasheet

Current PartRFQ

WP710A10F3C

KingbrightIn Stock: 2338WP710A10F3C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WP7104F3C is determined by the following critical parameters that must remain consistent across equivalent parts:

Core Electrical Parameters:

• Wavelength: 940nm (infrared spectrum requirement)
• Maximum DC Forward Current: 50mA
• Typical Forward Voltage: 1.2V
• Operating Temperature Range: -40°C ~ 85°C

Optical Parameters:

• Viewing Angle: 34°
• Radiant Intensity: minimum 7mW/sr @ 50mA

Physical and Compliance Parameters:

• Mounting Type: Through Hole
• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part WP710A10F3C maintains electrical compatibility through identical wavelength, forward current rating, forward voltage, and operating temperature specifications. The primary difference is the package configuration (Radial versus T-1) and enhanced radiant intensity (10mW/sr versus 7mW/sr), which represents improved performance within the same electrical operating envelope.

Parameter Comparison

Engineering Selection Recommendations

The WP710A10F3C serves as a direct electrical substitute for the obsolete WP7104F3C, with all critical electrical and optical parameters maintained at equivalent or superior levels. The substitute part is currently in Active product status, ensuring long-term availability and supply chain continuity.

Primary Consideration: Package configuration differs between the main part (T-1) and substitute (Radial). PCB layout and mechanical mounting requirements must accommodate the Radial lead configuration. Both parts maintain identical through-hole mounting methodology and are suitable for standard PCB assembly processes.

Compliance Status: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental compatibility in equivalent applications.

Performance Advantage: The substitute part delivers 10mW/sr radiant intensity compared to the main part's 7mW/sr, representing a 43% increase in optical output while maintaining identical electrical operating parameters.

Frequently Asked Questions (FAQ)

Q: Can WP710A10F3C directly replace WP7104F3C in existing designs?

A: Electrical substitution is direct. All electrical parameters (wavelength, forward current, forward voltage, operating temperature) are identical. Physical substitution requires PCB layout modification due to package form factor change from T-1 to Radial configuration.

Q: What is the primary difference between these two parts?

A: The main differences are package configuration (T-1 versus Radial) and radiant intensity (7mW/sr versus 10mW/sr). Electrical specifications remain identical.

Q: Is the higher radiant intensity of WP710A10F3C a concern for compatibility?

A: No. The increased radiant intensity (10mW/sr) represents improved optical performance within the same electrical operating envelope. Applications requiring minimum 7mW/sr will function with enhanced optical output.

Q: Are both parts RoHS compliant?

A: Yes. Both WP7104F3C and WP710A10F3C are ROHS3 compliant with identical moisture sensitivity levels (MSL 1 - Unlimited).

Q: Why is WP7104F3C marked as Obsolete?

A: Product status reflects manufacturer lifecycle decisions. The WP710A10F3C (Active status) provides equivalent electrical functionality with improved specifications and current manufacturing support.

Q: What mounting considerations apply to the Radial package?

A: The Radial package uses through-hole mounting identical to the T-1 package. PCB footprint design must accommodate radial lead spacing and positioning. Standard through-hole assembly equipment is compatible with both configurations.