TSHA5200 Infrared Emitter 875nm Equivalent & Substitute Parts

Part Overview

The TSHA5200 is an infrared (IR) emitter operating at 875nm wavelength with a maximum forward current of 100mA and typical forward voltage of 1.5V. Manufactured by Vishay Semiconductor Opto Division, this component features a radial package configuration with a 24° viewing angle and is rated for -40°C to 85°C operating temperature range. The TSHA5200 is classified as obsolete, making identification of functionally equivalent active alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

TSHA5200

Vishay Semiconductor Opto DivisionIn Stock: 911TSHA5200 Datasheet

Current PartRFQ

HSDL-4220

Lite-On Inc.In Stock: 2750HSDL-4220 Datasheet

MFR RecommendedRFQ

HSDL-4251

Lite-On Inc.In Stock: 8450HSDL-4251 Datasheet

MFR RecommendedRFQ

HSDL-4261

Lite-On Inc.In Stock: 1202HSDL-4261 Datasheet

MFR RecommendedRFQ

SIR-563ST3FN

Rohm SemiconductorIn Stock: 2941SIR-563ST3FN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSHA5200 is determined by the following critical parameters: wavelength (875nm ±5nm tolerance typical for IR emitters), maximum forward current (100mA), forward voltage compatibility (1.5V ±0.2V), viewing angle (24° ±6° acceptable range), operating temperature range (minimum -40°C, maximum 85°C), and through-hole mounting configuration. Package form factor (radial vs. T 1 3/4) represents a mechanical constraint that affects PCB layout compatibility.

The substitute parts are grouped as follows:

Group 1 - Radial Package (Direct Mechanical Fit): HSDL-4261 maintains the radial package form factor identical to the TSHA5200, ensuring direct PCB compatibility without layout modification.

Group 2 - T 1 3/4 Package (Alternative Mechanical Form): HSDL-4220 and HSDL-4251 utilize the T 1 3/4 package, requiring PCB footprint redesign but offering active product status and extended inventory availability.

Group 3 - Extended Wavelength Range: SIR-563ST3FN operates at 940nm, representing a longer wavelength alternative suitable only for applications where spectral shift is acceptable.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation - HSDL-4261: This Lite-On Inc. part maintains radial package compatibility with the TSHA5200, eliminating PCB redesign requirements. Operating wavelength of 870nm falls within acceptable tolerance of the original 875nm specification. Active product status ensures long-term availability. Operating temperature range of -40°C to 70°C covers the lower bound of the TSHA5200 specification; applications requiring operation above 70°C should be evaluated against actual thermal requirements. MSL rating of 1 (Unlimited) matches the original component.

Secondary Recommendation - HSDL-4251: This Lite-On Inc. alternative offers the widest operating temperature range (-40°C to 85°C), matching the TSHA5200 specification exactly. The T 1 3/4 package requires PCB footprint modification. Wavelength of 870nm and maximum forward current of 100mA provide functional equivalence. Higher radiant intensity (56mW/sr @ 100mA) may require circuit current adjustment. MSL rating of 2A (4 Weeks) introduces moisture handling requirements not present in the original design.

Tertiary Recommendation - HSDL-4220: This Lite-On Inc. part maintains 875nm wavelength matching. The T 1 3/4 package requires PCB redesign. Operating temperature range of 0°C to 70°C does not meet the -40°C lower bound of the TSHA5200; this part is suitable only for applications operating above 0°C. Active product status and MSL rating of 1 (Unlimited) provide procurement advantages.

Alternative for Extended Wavelength Applications - SIR-563ST3FN: This Rohm Semiconductor part operates at 940nm, representing a 65nm shift from the original 875nm specification. Suitable only for applications where longer wavelength operation is acceptable or beneficial. Lower radiant intensity (9mW/sr @ 50mA) requires evaluation against optical system requirements. Active product status and wide operating temperature range (-25°C to 85°C) provide design flexibility.

Frequently Asked Questions (FAQ)

Q: Can HSDL-4261 be used as a direct replacement for TSHA5200 without PCB modification?

A: Yes. HSDL-4261 maintains the radial package configuration of the TSHA5200, allowing direct PCB footprint compatibility. The 870nm wavelength and 26° viewing angle represent minor deviations from the original 875nm and 24° specifications, acceptable for most infrared applications.

Q: What is the impact of switching from TSHA5200 (radial) to HSDL-4251 (T 1 3/4)?

A: The T 1 3/4 package requires PCB footprint redesign and component placement modification. This change is not a direct drop-in replacement. However, HSDL-4251 offers the advantage of matching the full operating temperature range (-40°C to 85°C) of the original component and provides higher radiant intensity.

Q: Why does HSDL-4220 have a narrower operating temperature range than TSHA5200?

A: HSDL-4220 is specified for 0°C to 70°C operation. Applications requiring operation below 0°C must use HSDL-4261 or HSDL-4251. This specification difference reflects the thermal design characteristics of the Lite-On component and does not indicate inferior quality.

Q: Is SIR-563ST3FN suitable for all TSHA5200 applications?

A: No. SIR-563ST3FN operates at 940nm, a 65nm wavelength shift from the TSHA5200 specification. This part is suitable only for applications where longer wavelength infrared operation is acceptable or where the optical receiver is designed for 940nm detection. Verify receiver spectral response before substitution.

Q: What are the moisture sensitivity implications of HSDL-4251?

A: HSDL-4251 carries an MSL rating of 2A (4 Weeks), requiring controlled moisture exposure during storage and handling. The TSHA5200 and other substitute options carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints. Procurement and storage procedures must account for this requirement.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (HSDL-4220, HSDL-4251, HSDL-4261, and SIR-563ST3FN) carry ROHS3 Compliant certification, matching the environmental compliance status of the TSHA5200.