SE2470-002 Infrared Emitter 880nm Equivalent & Substitute Parts

Part Overview

The SE2470-002 is an infrared (IR) emitter manufactured by Honeywell Sensing and Productivity Solutions, designed for applications requiring 880nm wavelength emission at 75mA maximum forward current. This component operates at 1.8V typical forward voltage with a radiant intensity of 6mW/sr at 50mA and an 18° viewing angle in a Mini-pill surface mount package.

The SE2470-002 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this component.

Substiute Parts

SE2470-002

Honeywell Sensing and Productivity SolutionsIn Stock: 90208SE2470-002 Datasheet

Current PartRFQ

OP224

TT Electronics/Optek TechnologyIn Stock: 5884OP224 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SE2470-002 are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Wavelength range: 880nm to 890nm (near-infrared spectrum alignment)
• Forward voltage: 1.8V typical (circuit bias compatibility)
• Package type: Mini-pill surface mount (mechanical and thermal compatibility)
• Operating temperature range: Minimum -55°C capability (thermal envelope)
• Mounting orientation: Top View (PCB layout compatibility)
• RoHS compliance status (regulatory requirement)

The OP224 from TT Electronics/Optek Technology meets these core substitution criteria. While the OP224 exhibits variations in maximum forward current (100mA vs. 75mA), radiant intensity specification format (3.5mW/cm² vs. 6mW/sr), and viewing angle (24° vs. 18°), these differences remain within acceptable tolerance for near-infrared emitter applications where the primary functional requirement is 880nm-class wavelength emission in a Mini-pill package.

Parameter Comparison

Engineering Selection Recommendations

SE2470-002 (Honeywell) - Primary Part: The SE2470-002 is classified as obsolete. Current inventory of 90,100 pieces is available; however, no future manufacturing is expected. This part remains suitable for applications where existing stock is available and design requirements are locked to 880nm wavelength with 75mA maximum current and 18° viewing angle specifications.

OP224 (TT Electronics/Optek Technology) - Active Substitute: The OP224 is actively manufactured and represents the recommended substitute for new designs or production continuation when SE2470-002 inventory is depleted. The OP224 maintains identical forward voltage (1.8V typical) and package form factor (Mini-pill surface mount), ensuring direct PCB compatibility. The OP224 achieves ROHS3 compliance, exceeding the RoHS Compliant status of the SE2470-002.

Key Differences Requiring Design Review:

• Wavelength: OP224 operates at 890nm versus SE2470-002 at 880nm. This 10nm difference may impact optical system performance in applications with narrow-band filtering or wavelength-critical detection circuits.
• Maximum Forward Current: OP224 supports 100mA versus SE2470-002 at 75mA. Existing current-limiting circuits designed for 75mA operation remain valid for OP224 operation.
• Viewing Angle: OP224 provides 24° versus SE2470-002 at 18°. The wider beam angle of OP224 may alter optical coverage patterns in directional applications.
• Operating Temperature: OP224 extends to -65°C minimum versus SE2470-002 at -55°C, providing enhanced low-temperature capability.

Compliance Status: Both parts maintain MSL 1 (Unlimited) moisture sensitivity and are RoHS compliant. OP224 carries ROHS3 designation, confirming compliance with current regulatory requirements. Both parts are classified under ECCN EAR99 and HTSUS 8541.41.0000.

Frequently Asked Questions (FAQ)

Q: Can the OP224 be used as a direct replacement for the SE2470-002 without circuit modification?

A: The OP224 shares identical forward voltage (1.8V typical), package type (Mini-pill), and mounting method (surface mount, top view orientation). Direct PCB substitution is mechanically and electrically feasible. However, the 10nm wavelength difference (890nm vs. 880nm) and 6° wider viewing angle (24° vs. 18°) may affect optical system performance. Circuit modification is not required for basic electrical operation, but optical system validation is necessary.

Q: What is the significance of the wavelength difference between 880nm and 890nm?

A: Both wavelengths fall within the near-infrared spectrum used for IR sensing and communication applications. The 10nm difference may be significant in systems employing narrow-band optical filters, wavelength-specific photodetectors, or applications where spectral response is tightly controlled. Applications with broad-spectrum IR detection may tolerate this variance without performance degradation.

Q: Why does the OP224 have a higher maximum forward current rating (100mA vs. 75mA)?

A: The OP224 is rated for higher maximum forward current, indicating greater current-handling capability. Existing designs operating the SE2470-002 at or below 75mA will operate the OP224 within its rated envelope. The higher rating provides design margin and does not require circuit modification for existing applications.

Q: Are there packaging or handling differences between these parts?

A: Both parts are Mini-pill surface mount packages with MSL 1 (Unlimited) moisture sensitivity level. Handling, storage, and reflow soldering processes are equivalent. No special precautions beyond standard surface mount component handling are required.

Q: What is the inventory status for each part?

A: SE2470-002 has 90,100 pieces in stock but is classified as obsolete with no future manufacturing planned. OP224 has 5,867 pieces in stock and is actively manufactured. For long-term supply assurance, OP224 is the recommended selection.

Q: How do the RoHS compliance statuses compare?

A: SE2470-002 is RoHS Compliant. OP224 is ROHS3 Compliant, representing the current regulatory standard. Both parts meet RoHS requirements; OP224 demonstrates compliance with the latest directive version.

Q: Does the wider viewing angle of the OP224 (24° vs. 18°) affect system design?

A: The OP224 provides a 6° wider viewing angle, resulting in broader optical coverage. In directional IR applications, this may alter beam pattern and detection range characteristics. Applications requiring precise beam control or narrow-angle emission should evaluate this parameter during optical system validation.