OD-100 Infrared Emitter 880nm Equivalent & Substitute Parts

Part Overview

The OD-100 is an infrared (IR) emitter manufactured by Opto Diode Corp, designed for applications requiring 880nm wavelength emission at 500mA forward current. The device is packaged in a TO-205AD, TO-39-3 metal can configuration with a 110° viewing angle and operates across the temperature range of -55°C to 100°C.

The OD-100 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure continued availability for maintenance, repair, and new design implementations where 880nm IR emission specifications are required or can be adapted to alternative wavelengths within acceptable system parameters.

Substiute Parts

OD-100

Opto Diode CorpIn Stock: 1121OD-100 Datasheet

Current PartRFQ

OD-250

Opto Diode CorpIn Stock: 1606OD-250 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OD-100 is determined by the following critical parameters:

Electrical Compatibility:

• Maximum DC forward current (If Max): 500mA
• Forward voltage (Vf): tolerance range acceptable for system design
• Radiant intensity output: sufficient for application requirements

Optical Compatibility:

• Wavelength: 880nm primary specification; alternative wavelengths (such as 850nm) may be substituted if system design permits spectral shift
• Viewing angle: 110° maintained across substitute options
• Radiant intensity: minimum output specifications must meet or exceed application demands

Mechanical & Environmental Compatibility:

• Package / Case: TO-205AD, TO-39-3 metal can (identical form factor)
• Mounting type: Through Hole (identical)
• Operating temperature range: substitute must cover or exceed the required operating window
• Moisture sensitivity: MSL 1 (Unlimited) acceptable

Regulatory & Compliance:

• ECCN and HTSUS classifications must align
• RoHS and REACH compliance status considered for new designs

The OD-250 qualifies as a substitute based on matching electrical current rating (500mA), identical package configuration, equivalent viewing angle (110°), and compatible operating temperature range, with the primary difference being wavelength shift from 880nm to 850nm.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): The OD-100 remains available in current inventory (1045 units). Direct use is appropriate for existing designs and maintenance applications where 880nm wavelength is specified and the -55°C minimum operating temperature is required.

For Substitute Selection (OD-250): The OD-250 is recommended as a substitute when:

• System design permits wavelength operation at 850nm instead of 880nm
• Minimum operating temperature requirement does not fall below -40°C
• Forward current and voltage specifications (500mA, 1.7V typical) are compatible with circuit design
• Identical TO-39 package and through-hole mounting eliminate mechanical redesign

The OD-250 carries active product status with higher inventory availability (1590 units), ensuring long-term supply continuity. The OD-250 is RoHS Compliant, providing compliance advantage for new designs subject to RoHS regulations.

Critical Compatibility Factors:

• Wavelength shift (880nm to 850nm): Verify system photodetector or optical filter acceptance
• Operating temperature minimum (-40°C vs -55°C): Confirm application does not require sub -40°C operation
• Forward voltage increase (1.65V to 1.7V): Verify circuit current-limiting design accommodates 0.05V variation

Frequently Asked Questions (FAQ)

Q: Can the OD-250 directly replace the OD-100 in existing designs?

A: Mechanical and electrical compatibility is confirmed (identical package, 500mA current rating, 1.7V forward voltage within typical tolerance). Substitution requires verification that the system accepts 850nm wavelength instead of 880nm. If the application uses a narrowband optical filter or photodetector tuned to 880nm, spectral mismatch may reduce performance. Confirm with system design specifications.

Q: What is the wavelength difference between OD-100 and OD-250, and does it matter?

A: The OD-100 emits at 880nm; the OD-250 emits at 850nm. This 30nm difference may be significant depending on application. IR detection systems using narrowband filters, specific photodiodes, or wavelength-dependent optical components may experience reduced signal coupling. Broadband IR detection systems typically tolerate this shift. Consult application requirements.

Q: Why does the OD-250 have a narrower operating temperature range?

A: The OD-100 operates from -55°C to 100°C; the OD-250 operates from -40°C to 100°C. The OD-250 minimum operating temperature is 15°C higher. If your application requires operation below -40°C, the OD-100 is required. For applications within -40°C to 100°C, both parts are suitable.

Q: Are the packages identical?

A: Yes. Both the OD-100 and OD-250 use the TO-205AD, TO-39-3 metal can package with through-hole mounting. No PCB layout or mechanical redesign is necessary for substitution.

Q: What is the radiant intensity difference?

A: The OD-100 specifies 60mW/sr minimum at 500mA. The OD-250 does not provide a radiant intensity specification in the available data. If radiant intensity is a critical parameter for your application, direct measurement or manufacturer consultation is required before substitution.

Q: Is the OD-250 RoHS compliant?

A: Yes. The OD-250 is RoHS Compliant. The OD-100 RoHS status is not specified in the provided data. For new designs subject to RoHS regulations, the OD-250 provides documented compliance.

Q: Which part should I choose for a new design?

A: If wavelength flexibility exists in system design, the OD-250 is preferred due to active product status, higher inventory availability, and RoHS compliance. If 880nm wavelength is mandatory or operating temperature below -40°C is required, the OD-100 must be used while inventory is available.