MTPD1346-080 Equivalent & Substitute Parts

Part Overview

The MTPD1346-080 is a photodiode optical sensor manufactured by Marktech Optoelectronics, classified within the 1346 InGaAs series. This component is currently listed as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs. The part was originally supplied in TO-46 packaging with a 0.8mm active area configuration.

Substiute Parts

MTPD1346-080

Marktech OptoelectronicsIn Stock: 1116MTPD1346-080 Datasheet

Current PartRFQ

MTPD1346D-100

Marktech OptoelectronicsIn Stock: 1394MTPD1346D-100 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MTPD1346-080 is determined by the following critical parameters:

• Manufacturer Series Alignment: Both the main part and substitute must belong to the Marktech Optoelectronics 1346 InGaAs photodiode series to ensure compatibility with existing optical system designs.
• Package Type Compatibility: The TO-46 form factor is the primary mechanical constraint. The substitute MTPD1346D-100 utilizes TO-46-3 packaging, which maintains the same through-hole mounting interface and mechanical footprint compatibility.
• Diode Classification: Both parts are photodiode sensors within the InGaAs technology family, confirming functional equivalence for infrared detection applications.
• Moisture Sensitivity: Matching MSL rating of 1 (Unlimited) ensures equivalent handling and storage requirements.
• Active Area Consideration: The MTPD1346-080 specifies 0.8mm active area, while the substitute MTPD1346D-100 provides 1.00mm diameter active area. This represents a minor geometric variation within the same product family.

Parameter Comparison

Engineering Selection Recommendations

The MTPD1346D-100 is the designated substitute for the obsolete MTPD1346-080 based on the following engineering criteria:

• Product Status: The MTPD1346D-100 maintains active production status with confirmed inventory availability (1382 Pcs), whereas the MTPD1346-080 is obsolete. This ensures long-term supply chain continuity.
• Series Continuity: Both components belong to the Marktech 1346 InGaAs photodiode series, maintaining design compatibility with existing optical sensor applications.
• Regulatory Compliance: The MTPD1346D-100 is ROHS3 compliant, meeting current environmental and regulatory standards for electronic component manufacturing and distribution.
• Package Compatibility: The TO-46-3 Lens Top Metal Can package maintains mechanical and electrical interface compatibility with TO-46 mounting requirements.
• Operational Parameters: The substitute provides defined electrical characteristics including 5V maximum reverse voltage, 200nA typical dark current, and -40°C to 85°C operating temperature range, enabling precise system integration.

Frequently Asked Questions (FAQ)

Q: Can the MTPD1346D-100 directly replace the MTPD1346-080 in existing designs?

A: Yes. Both components share the same manufacturer series (1346 InGaAs), package family (TO-46), and MSL rating. The TO-46-3 variant maintains mechanical and electrical compatibility with TO-46 mounting interfaces. The active area difference (0.8mm to 1.00mm) represents a minor geometric variation within the same product family.

Q: What is the significance of the active area difference between these parts?

A: The MTPD1346-080 specifies 0.8mm active area, while the MTPD1346D-100 provides 1.00mm diameter active area. This 0.2mm increase affects light collection efficiency and may require optical system recalibration in applications with tight spatial constraints or specific coupling requirements.

Q: Are there compliance differences between the two parts?

A: The MTPD1346D-100 is ROHS3 compliant, whereas compliance information for the MTPD1346-080 is not provided. For new designs or systems requiring regulatory compliance documentation, the MTPD1346D-100 is the appropriate selection.

Q: What is the packaging difference between TO-46 and TO-46-3?

A: The MTPD1346D-100 uses TO-46-3 Lens Top Metal Can packaging, which includes an integrated lens element. This variant maintains the same through-hole mounting footprint as standard TO-46 packages while providing enhanced optical focusing capabilities.

Q: Is the MTPD1346D-100 available in the same quantities as the obsolete part?

A: The MTPD1346D-100 has higher current inventory availability (1382 Pcs) compared to the MTPD1346-080 (1096 Pcs), providing improved supply chain security for production and replacement applications.