SIR-320ST3FP Equivalent & Substitute Parts

Part Overview

The SIR-320ST3FP is an infrared emitter manufactured by Rohm Semiconductor, classified as an Emitter component. This part is designated as Obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and procurement needs. The obsolete status requires engineers to evaluate functionally compatible alternatives to maintain system performance and ensure supply chain continuity.

Substiute Parts

SIR-320ST3FP

Rohm SemiconductorIn Stock: 1073SIR-320ST3FP Datasheet

Current PartRFQ

SIR-34ST3F

Rohm SemiconductorIn Stock: 3690SIR-34ST3F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SIR-34ST3F is identified as a manufacturer-recommended substitute for the SIR-320ST3FP. Substitution eligibility is determined by the following parameters:

Substitution Criteria:

• Manufacturer alignment (Rohm Semiconductor)
• Component classification (Infrared Emitter)
• Regulatory compliance (REACH Unaffected, EAR99 classification)
• Harmonized tariff code compatibility (8541.41.0000)
• Electrical performance parameters (wavelength, forward current, forward voltage, radiant intensity)
• Mechanical form factor (T-1 package, Through Hole mounting)

The SIR-34ST3F meets all substitution requirements as a functionally equivalent infrared emitter with documented electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Regulatory Compliance: Both the SIR-320ST3FP and SIR-34ST3F maintain REACH Unaffected status and EAR99 export classification, ensuring consistent regulatory compliance across substitution. The SIR-34ST3F provides additional RoHS3 compliance certification.

Product Status Consideration: Both components are classified as Obsolete. Selection of the SIR-34ST3F as a substitute does not resolve long-term obsolescence concerns. For applications requiring extended component availability, evaluation of non-obsolete infrared emitter alternatives from current product lines is warranted.

Inventory Availability: The SIR-34ST3F demonstrates significantly higher inventory availability (3660 Pcs) compared to the SIR-320ST3FP (978 Pcs), supporting near-term procurement requirements.

Electrical and Mechanical Compatibility: The SIR-34ST3F provides complete electrical specifications (950nm wavelength, 100mA maximum forward current, 1.3V typical forward voltage) and mechanical form factor (T-1 Through Hole package) suitable for direct substitution in applications originally designed for the SIR-320ST3FP.

Frequently Asked Questions (FAQ)

Q: Can the SIR-34ST3F be used as a direct replacement for the SIR-320ST3FP?

A: Yes. The SIR-34ST3F is the manufacturer-recommended substitute. Both components are infrared emitters from Rohm Semiconductor with compatible regulatory classifications (REACH Unaffected, EAR99) and identical HTSUS coding. The SIR-34ST3F provides documented electrical parameters (950nm, 100mA, 1.3V) and T-1 Through Hole packaging suitable for direct substitution.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by wavelength (950nm), maximum forward current (100mA), typical forward voltage (1.3V), radiant intensity (3.5mW/sr @ 50mA), and viewing angle (54°). These parameters ensure functional equivalence in infrared emission applications.

Q: Are there packaging differences between these components?

A: Both components utilize T-1 Through Hole packaging. No package conversion or board redesign is required for substitution.

Q: What is the operating temperature range for the SIR-34ST3F?

A: The SIR-34ST3F operates across -25°C to 85°C ambient temperature range (TA), providing standard industrial temperature performance.

Q: Does the SIR-34ST3F have RoHS compliance?

A: Yes. The SIR-34ST3F is RoHS3 Compliant, providing enhanced environmental compliance compared to the original SIR-320ST3FP specification.

Q: Are both components still in active production?

A: No. Both the SIR-320ST3FP and SIR-34ST3F are classified as Obsolete. While the SIR-34ST3F offers higher current inventory levels, long-term availability cannot be guaranteed. For applications requiring extended component lifecycle support, evaluation of current-generation infrared emitter products is recommended.

Q: What is the moisture sensitivity level of the SIR-34ST3F?

A: The SIR-34ST3F carries MSL Rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.