TSUS4300-ASZ Equivalent & Substitute Parts

Part Overview

The TSUS4300-ASZ is an Infrared (IR) Emitter manufactured by Vishay Semiconductor Opto Division, designed for through-hole applications in the 950nm wavelength spectrum. This component operates at 1.3V forward voltage with a maximum DC forward current of 100mA and delivers 7mW/sr radiant intensity at 100mA. The device features a 3mm diameter radial package (T-1 form factor) with a 32° viewing angle.

The TSUS4300-ASZ is classified as Obsolete. Locating equivalent or substitute components becomes necessary when original stock is depleted or when design flexibility is required for procurement optimization. Substitute parts must maintain compatibility across electrical parameters, mechanical form factors, and operating temperature ranges to ensure functional equivalence in circuit applications.

Substiute Parts

TSUS4300-ASZ

Vishay Semiconductor Opto DivisionIn Stock: 1297TSUS4300-ASZ Datasheet

Current PartRFQ

INL-5AHIR30

InoluxIn Stock: 3003INL-5AHIR30 Datasheet

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INL-5AHIR30

InoluxIn Stock: 3003INL-5AHIR30 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSUS4300-ASZ is evaluated based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Compatibility Criteria:

• Maximum DC Forward Current (If Max): Must support 100mA operation
• Forward Voltage (Vf): Acceptable range 1.2V to 1.3V for circuit design flexibility
• Radiant Intensity (Ie): Minimum 7mW/sr to maintain optical output performance
• Wavelength: Near-infrared spectrum 940nm to 950nm for application compatibility

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole required
• Package Form Factor: Radial configuration, 3mm diameter (T-1 standard)
• Viewing Angle: 30° to 32° acceptable range for directional emission patterns

Environmental & Compliance Criteria:

• Operating Temperature Range: Minimum -40°C to 80°C (TSUS4300-ASZ operates to 85°C)
• RoHS Status: ROHS3 Compliant required
• ECCN Classification: EAR99 for export control consistency

The INL-5AHIR30 from Inolux meets all substitution criteria within these defined parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: INL-5AHIR30 (Inolux)

The INL-5AHIR30 is the qualified substitute for the TSUS4300-ASZ based on the following engineering factors:

Electrical Performance: The INL-5AHIR30 operates at 1.2V forward voltage, which is 0.1V lower than the TSUS4300-ASZ. Both components support 100mA maximum DC forward current. The radiant intensity of the INL-5AHIR30 (7.8mW/sr @ 20mA) exceeds the minimum requirement of 7mW/sr @ 100mA, providing equivalent or superior optical output performance.

Mechanical Compatibility: Both components utilize through-hole mounting with radial package configuration in the standard T-1 form factor (3mm diameter). The viewing angle difference of 2° (32° versus 30°) falls within acceptable tolerance for directional emission applications.

Environmental & Compliance Alignment: The INL-5AHIR30 maintains ROHS3 compliance and EAR99 export classification consistent with the original component. Operating temperature range extends from -40°C to 80°C, providing adequate coverage for the majority of industrial and consumer applications, with a 5°C reduction at the upper limit.

Product Status Advantage: The INL-5AHIR30 is classified as Active, ensuring continued availability and supply chain reliability compared to the Obsolete status of the TSUS4300-ASZ.

Procurement Consideration: The INL-5AHIR30 is currently available with 2949 pieces in stock, providing immediate procurement capability.

Frequently Asked Questions (FAQ)

Q: Can the INL-5AHIR30 be used as a direct replacement for the TSUS4300-ASZ in existing circuit designs?

A: Yes. The INL-5AHIR30 meets all critical electrical and mechanical parameters. The 0.1V forward voltage difference (1.2V versus 1.3V) is within standard circuit design tolerance. Both components support 100mA maximum current and deliver equivalent radiant intensity performance. Through-hole mounting and radial package configuration are identical.

Q: What is the significance of the wavelength difference between 950nm and 940nm?

A: Both wavelengths operate in the near-infrared spectrum and are functionally compatible for standard IR receiver applications. The 10nm difference does not affect component substitution for typical infrared sensing, remote control, or data transmission circuits. Application-specific requirements should be evaluated if narrow wavelength tolerance is critical.

Q: How does the viewing angle difference of 2° (32° versus 30°) affect circuit performance?

A: The viewing angle defines the directional emission pattern. A 2° difference represents a minor variation in beam width. For applications requiring precise directional control, this difference should be evaluated against specific optical design requirements. For general-purpose IR applications, this difference is negligible.

Q: Why is the operating temperature range of the INL-5AHIR30 limited to 80°C compared to 85°C for the TSUS4300-ASZ?

A: The 5°C difference at the upper temperature limit reflects manufacturer specifications for the respective components. For applications operating within -40°C to 80°C, the INL-5AHIR30 provides full compatibility. Applications requiring operation above 80°C should be evaluated against specific thermal requirements.

Q: What does the radiant intensity specification "7.8mW/sr @ 20mA" mean for the INL-5AHIR30?

A: Radiant intensity is measured at a specific forward current. The INL-5AHIR30 specification indicates 7.8mW/sr when operating at 20mA. The TSUS4300-ASZ specification indicates 7mW/sr at 100mA. The INL-5AHIR30 delivers higher intensity at lower current, indicating superior optical efficiency and meeting the minimum intensity requirement.

Q: Are both components RoHS compliant?

A: Yes. Both the TSUS4300-ASZ and INL-5AHIR30 are ROHS3 Compliant, meeting environmental and hazardous substance restrictions for electronic components.

Q: What is the packaging difference between the two components?

A: The TSUS4300-ASZ packaging information is not specified in the provided data. The INL-5AHIR30 is supplied in Bag packaging. Both components utilize identical through-hole radial package form factors suitable for standard PCB assembly processes.