TS8542VA Equivalent & Substitute Parts

Part Overview

The TS8542VA is an infrared (IR) emitter manufactured by Vishay Semiconductor Opto Division, designed for 850nm wavelength applications with a maximum forward current of 1A and typical forward voltage of 1.6V. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The die-form packaging and specific optical characteristics require careful evaluation when selecting alternative components.

Substiute Parts

TS8542VA

Vishay Semiconductor Opto DivisionIn Stock: 1071TS8542VA Datasheet

Current PartRFQ

SST-10-IR-B90-K850-00

Luminus Devices Inc.In Stock: 112981SST-10-IR-B90-K850-00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS8542VA is determined by the following critical parameters:

• Wavelength: 850nm (primary functional requirement)
• Current Rating: Maximum forward current capability must meet or exceed 1A
• Voltage Characteristics: Forward voltage must be compatible with circuit design parameters
• Viewing Angle: 110° specification defines the optical radiation pattern
• Package Type: Surface mount configuration with appropriate form factor
• Compliance: RoHS3 and REACH compliance status for regulatory alignment

The SST-10-IR-B90-K850-00 qualifies as a substitute based on matching wavelength (850nm), surface mount technology, and compliance certifications. Differences in current rating (1.5A vs. 1A), forward voltage (1.5V vs. 1.6V), and viewing angle (90° vs. 110°) must be evaluated within the context of the specific application circuit.

Parameter Comparison

Engineering Selection Recommendations

The SST-10-IR-B90-K850-00 is an active product with current manufacturing support, addressing the obsolescence status of the TS8542VA. Both components maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental consistency.

The substitute part demonstrates higher current capacity (1.5A maximum vs. 1A) and lower typical forward voltage (1.5V vs. 1.6V). The viewing angle differs at 90° compared to the original 110°, and the package configuration transitions from die form to 2-SMD with exposed pad. These differences require circuit-level evaluation to confirm functional compatibility within the intended application.

Frequently Asked Questions (FAQ)

Q: Can the SST-10-IR-B90-K850-00 directly replace the TS8542VA?

A: Both components operate at 850nm wavelength and are surface mount devices with matching compliance certifications. However, differences in current rating, forward voltage, viewing angle, and package form require application-specific validation before implementation.

Q: What is the significance of the viewing angle difference (110° vs. 90°)?

A: The viewing angle defines the optical radiation pattern. The TS8542VA provides a wider 110° beam, while the SST-10-IR-B90-K850-00 produces a narrower 90° beam. Application requirements for optical coverage must be assessed accordingly.

Q: How do the current ratings affect substitution?

A: The TS8542VA is rated for 1A maximum forward current, while the SST-10-IR-B90-K850-00 supports 1.5A. The substitute part can operate at the original design current without exceeding its rating. Circuit design must ensure the substitute is not driven beyond its specifications.

Q: Are there packaging considerations for this substitution?

A: The TS8542VA uses die packaging, while the SST-10-IR-B90-K850-00 employs 2-SMD with exposed pad configuration. PCB layout, thermal management, and assembly processes must be adapted to accommodate the different package form factor.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TS8542VA and SST-10-IR-B90-K850-00 are ROHS3 compliant and REACH unaffected, maintaining regulatory alignment for applications requiring these certifications.