SE3455-003 Infrared Emitter 935nm Equivalent & Substitute Parts

Part Overview

The SE3455-003 is an infrared (IR) emitter manufactured by Honeywell Sensing and Productivity Solutions, designed for 935nm wavelength applications requiring 100mA forward current operation. This component features a TO-46-2 metal can package with through-hole mounting and operates across an extended temperature range of -55°C to 125°C.

The SE3455-003 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements. The substitute parts listed maintain core electrical and mechanical compatibility while offering active product status and enhanced availability.

Substiute Parts

SE3455-003

Honeywell Sensing and Productivity SolutionsIn Stock: 757SE3455-003 Datasheet

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OP130

TT Electronics/Optek TechnologyIn Stock: 1760OP130 Datasheet

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OP132

TT Electronics/Optek TechnologyIn Stock: 2129OP132 Datasheet

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OP133W

TT Electronics/Optek TechnologyIn Stock: 4427OP133W Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SE3455-003 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Wavelength: 935nm (all substitutes match)
• Maximum Forward Current: 100mA (all substitutes match)
• Package / Case: TO-46-2 Metal Can (all substitutes match)
• Mounting Type: Through Hole (all substitutes match)
• Orientation: Top View (all substitutes match)

Variable Parameters Affecting Application Suitability:

• Viewing Angle: 90° (main part) vs. 18° or 50° (substitutes)
• Forward Voltage: 1.7V (main part) vs. 1.75V (substitutes)
• Radiant Intensity: Not specified (main part) vs. 1–5mW/cm² @ 100mA (substitutes)
• Operating Temperature Range: -55°C to 125°C (main part) vs. -65°C to 125°C (substitutes)

All three substitute parts (OP130, OP132, OP133W) maintain electrical and mechanical compatibility with the SE3455-003. Selection among substitutes depends on application requirements for viewing angle and radiant intensity output.

Parameter Comparison

Engineering Selection Recommendations

OP133W is the primary substitute for SE3455-003 applications requiring broad beam distribution. This part maintains the widest viewing angle at 50°, closest to the original 90° specification, while delivering the highest radiant intensity at 5mW/cm² @ 100mA. OP133W carries active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

OP130 is suitable for applications requiring narrow beam concentration with 18° viewing angle and minimal radiant intensity output at 1mW/cm² @ 100mA. This part is appropriate for focused IR transmission applications where beam collimation is critical.

OP132 provides intermediate radiant intensity at 4mW/cm² @ 100mA with the same 18° viewing angle as OP130. This part bridges performance between OP130 and OP133W for applications requiring moderate intensity with narrow beam characteristics.

All three substitute parts are manufactured by TT Electronics/Optek Technology and carry active product status with ROHS3 compliance. Forward voltage increases from 1.7V to 1.75V across all substitutes, requiring circuit verification for current-limiting resistor calculations. Operating temperature range extends to -65°C minimum across all substitutes, providing enhanced low-temperature performance compared to the SE3455-003.

Frequently Asked Questions (FAQ)

Q: Can OP133W, OP132, and OP130 be used interchangeably with SE3455-003?

A: All three parts share identical wavelength (935nm), maximum forward current (100mA), package type (TO-46-2 Metal Can), and mounting configuration (through-hole). Interchangeability depends on application-specific requirements for viewing angle and radiant intensity. OP133W provides the closest beam angle match to the original 90° specification at 50°. OP130 and OP132 feature narrower 18° viewing angles suitable for focused applications.

Q: What is the impact of the 0.05V forward voltage increase from 1.7V to 1.75V?

A: The forward voltage increase affects circuit design calculations for current-limiting resistors. For a given supply voltage and target forward current of 100mA, the resistor value must be recalculated using the new 1.75V specification. This adjustment is necessary to maintain proper emitter operation and prevent overcurrent conditions.

Q: How do the radiant intensity specifications differ among substitutes?

A: OP130 delivers 1mW/cm² @ 100mA, OP132 delivers 4mW/cm² @ 100mA, and OP133W delivers 5mW/cm² @ 100mA. The SE3455-003 does not specify radiant intensity. Higher radiant intensity values indicate greater IR output power density. Application requirements for detection range and signal strength determine which substitute intensity level is appropriate.

Q: Are all substitute parts RoHS compliant?

A: Yes. The SE3455-003 is RoHS Compliant. All three substitute parts (OP130, OP132, OP133W) are ROHS3 Compliant, meeting current regulatory requirements for hazardous substance restrictions.

Q: What is the difference between TO-46-2 Metal Can and TO-46-2 Lens Top Metal Can packaging?

A: Both are TO-46-2 package variants with through-hole mounting. The Lens Top variant (OP130, OP132) includes an integrated lens element for beam shaping. The standard Metal Can variant (SE3455-003, OP133W) does not include an integrated lens. This distinction affects beam characteristics and optical performance but does not impact electrical compatibility or pin configuration.

Q: Do the substitute parts support the full operating temperature range of the SE3455-003?

A: The SE3455-003 operates from -55°C to 125°C. All substitute parts operate from -65°C to 125°C, extending the minimum operating temperature by 10°C. This provides enhanced performance margin for low-temperature applications.

Q: What is the inventory status of substitute parts?

A: OP130 has 1,738 units in stock, OP132 has 2,049 units in stock, and OP133W has 4,317 units in stock. All substitute parts are classified as active products with established supply chains, ensuring reliable availability compared to the obsolete SE3455-003.