GL100MN3MP1 Infrared Emitter - Equivalent & Substitute Parts

Part Overview

The GL100MN3MP1 is a 940nm infrared emitter manufactured by Sharp Microelectronics, designed for applications requiring near-infrared light emission at 50mA maximum forward current. This component operates at a typical forward voltage of 1.25V with a radiant intensity of 3mW/sr at 20mA and a narrow 18° viewing angle, making it suitable for focused infrared transmission applications.

The GL100MN3MP1 is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing production, maintenance, or redesign efforts where this part is no longer readily available from primary sources.

Substiute Parts

GL100MN3MP1

Sharp MicroelectronicsIn Stock: 985GL100MN3MP1 Datasheet

Current PartRFQ

IR11-21C/TR8

Everlight Electronics Co LtdIn Stock: 53796IR11-21C/TR8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GL100MN3MP1 is evaluated based on the following critical parameters:

• Wavelength: Must be 940nm to maintain compatibility with receiver circuits and optical filtering
• Forward Current Rating (If): The substitute must support the application's current requirements; higher ratings provide design margin
• Forward Voltage (Vf): Must be compatible with the power supply and circuit design; minor variations are acceptable within typical operating ranges
• Radiant Intensity: Determines optical output; substitutes with lower intensity may require circuit adjustments
• Viewing Angle: Affects beam divergence; wider angles provide greater tolerance in optical alignment
• Mounting Type & Package: Must be surface mount compatible; package footprint differences require PCB redesign consideration
• Operating Temperature Range: Must encompass the application's thermal environment
• Product Status & Compliance: Active parts with current certifications ensure long-term availability and regulatory compliance

The IR11-21C/TR8 from Everlight Electronics Co Ltd qualifies as a substitute based on matching wavelength (940nm), compatible voltage characteristics (1.2V vs. 1.25V), surface mount construction, and active product status with current RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The IR11-21C/TR8 is an active substitute for the obsolete GL100MN3MP1. Selection should be based on the following factors:

Availability & Compliance: The IR11-21C/TR8 is currently in active production with 53,696 units in stock and carries RoHS3 compliance certification, ensuring regulatory alignment and supply chain continuity.

Optical Performance Trade-offs: The substitute exhibits lower radiant intensity (0.5mW/sr vs. 3mW/sr at 20mA) and a significantly wider viewing angle (100° vs. 18°). Applications requiring the original narrow beam profile and high intensity must evaluate whether the substitute's optical characteristics meet functional requirements.

Electrical Compatibility: Forward voltage difference (1.2V vs. 1.25V) is negligible for most circuit designs. The higher current rating (65mA vs. 50mA) provides additional design margin without adverse effects.

Physical Integration: Package footprint change from 2-SMD to 1206 (3016 Metric) requires PCB layout modification. Temperature range narrowing at the low end (-25°C vs. -30°C) must be verified against application requirements.

Thermal Environment: The substitute's operating range extends to 85°C, matching the original specification at the upper limit.

Frequently Asked Questions (FAQ)

Q: Can the IR11-21C/TR8 directly replace the GL100MN3MP1 without circuit modifications?

A: Electrical substitution is feasible due to compatible wavelength, voltage, and current characteristics. However, PCB layout changes are required due to different package footprints (2-SMD vs. 1206). Optical performance differences (radiant intensity and viewing angle) may necessitate circuit adjustments depending on application sensitivity.

Q: What is the significance of the radiant intensity difference between these parts?

A: Radiant intensity (3mW/sr vs. 0.5mW/sr at 20mA) directly affects optical output power in the forward direction. Applications with tight optical budgets or long transmission distances may experience reduced performance with the substitute. Receiver sensitivity and circuit gain must be evaluated.

Q: How does the viewing angle difference impact system design?

A: The original GL100MN3MP1 has an 18° narrow beam suitable for focused transmission. The IR11-21C/TR8 provides a 100° wide beam, distributing light over a broader area. This affects optical alignment tolerance, receiver field-of-view requirements, and potential crosstalk in multi-channel systems.

Q: Is the temperature range difference critical?

A: The substitute's lower temperature limit (-25°C vs. -30°C) represents a 5°C reduction. Applications operating below -25°C require verification that the substitute meets thermal requirements. The upper limit (85°C) is identical.

Q: What packaging considerations apply to this substitution?

A: The GL100MN3MP1 uses a 2-SMD, No Lead package, while the IR11-21C/TR8 uses a 1206 (3016 Metric) package. These have different footprints and land patterns. PCB redesign is necessary; existing designs cannot accommodate the substitute without layout modification.

Q: Does the substitute meet current regulatory standards?

A: Yes. The IR11-21C/TR8 carries RoHS3 compliance certification and REACH Unaffected status, meeting current environmental and regulatory requirements. The original GL100MN3MP1 compliance status is not specified.