SFH 4715AS-EA Equivalent & Substitute Parts

Part Overview

The SFH 4715AS-EA is an Infrared (IR) Emitter manufactured by ams-OSRAM USA INC., part of the OSLON® Black series. This component is an active product designed for surface mount applications requiring 860nm wavelength infrared emission. The device operates at 1.5A maximum forward current with a typical forward voltage of 3.35V and delivers 780mW/sr radiant intensity at rated current. Finding equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across manufacturing cycles.

Substiute Parts

SFH 4715AS-EA

ams-OSRAM USA INC.In Stock: 847SFH 4715AS-EA Datasheet

Current PartRFQ

VSMA1085400

Vishay Semiconductor Opto DivisionIn Stock: 1374VSMA1085400 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFH 4715AS-EA is determined by strict alignment of the following critical parameters:

Primary Matching Criteria:

• Wavelength: 860nm (exact match required)
• Current - DC Forward (If) (Max): 1.5A (exact match required)
• Package / Case: 3-SMD, No Lead (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -40°C ~ 125°C (exact match required)

Secondary Compatibility Parameters:

• Voltage - Forward (Vf) (Typ): Allowable variance within typical circuit design tolerances
• Radiant Intensity (Ie) Min @ If: Higher values indicate improved performance; lower values require circuit re-evaluation
• Viewing Angle: Variation acceptable if application requirements permit

The substitute part VSMA1085400 meets all primary matching criteria and is therefore classified as a direct equivalent for the SFH 4715AS-EA.

Parameter Comparison

Engineering Selection Recommendations

SFH 4715AS-EA (ams-OSRAM USA INC.):

• Primary choice for applications requiring ROHS3 compliance certification
• Established supply chain through ams-OSRAM distribution
• MSL rating of 2 (1 Year) suitable for standard manufacturing environments
• Radiant intensity of 780mW/sr at 1.5A meets baseline performance requirements

VSMA1085400 (Vishay Semiconductor Opto Division):

• Direct functional equivalent with identical wavelength, current rating, and package
• Higher radiant intensity output (975mW/sr) provides 25% performance margin
• Narrower viewing angle (80° vs 90°) requires application-specific evaluation
• Lower forward voltage (3.25V vs 3.35V) reduces power dissipation by approximately 3%
• MSL rating of 3 (168 Hours) requires controlled storage conditions
• RoHS compliance status requires supplier verification before selection

Both parts are active products with identical operating temperature ranges and surface mount compatibility. Selection between these components depends on supply availability, compliance documentation requirements, and application-specific performance margins.

Frequently Asked Questions (FAQ)

Q: Can VSMA1085400 be used as a direct replacement for SFH 4715AS-EA in existing designs?

A: Yes, VSMA1085400 is functionally equivalent for applications where the narrower 80° viewing angle and higher radiant intensity (975mW/sr) are acceptable. The 0.10V lower forward voltage requires circuit re-evaluation only if the design operates at voltage margins. Verify RoHS compliance documentation with the supplier before implementation.

Q: What is the significance of the viewing angle difference (90° vs 80°)?

A: The SFH 4715AS-EA provides a 90° viewing angle, while VSMA1085400 provides an 80° viewing angle. This 10° difference results in a narrower beam concentration for the Vishay component. Applications requiring wide-angle infrared coverage should retain the SFH 4715AS-EA. Applications with focused beam requirements may benefit from the VSMA1085400's narrower angle.

Q: How does the radiant intensity difference affect circuit design?

A: The VSMA1085400 delivers 975mW/sr compared to 780mW/sr for the SFH 4715AS-EA at identical 1.5A forward current. This 25% higher output may require adjustment of current-limiting resistors or receiver sensitivity settings to maintain consistent system performance. No circuit redesign is necessary if the application can tolerate increased infrared output.

Q: What are the packaging and moisture sensitivity implications?

A: Both components use identical 3-SMD, No Lead surface mount packages. The SFH 4715AS-EA has MSL 2 (1 Year shelf life), while VSMA1085400 has MSL 3 (168 Hours shelf life). MSL 3 components require more stringent moisture control during storage and handling. Verify your manufacturing environment meets MSL 3 requirements before selecting VSMA1085400.

Q: Are there any compliance or certification differences?

A: The SFH 4715AS-EA is explicitly ROHS3 compliant. VSMA1085400 RoHS compliance status is not specified in the provided data. Obtain formal compliance documentation from Vishay before selecting this component for applications with regulatory compliance requirements.

Q: What forward voltage difference should I account for in circuit design?

A: The forward voltage difference is 0.10V (3.35V for SFH 4715AS-EA vs 3.25V for VSMA1085400). This represents approximately 3% lower power dissipation for the Vishay component. Most circuit designs accommodate this variance within standard component tolerances. Recalculate current-limiting resistor values only if your design operates at tight voltage margins.