RPMD-0100 Equivalent & Substitute Parts

Part Overview

The RPMD-0100 is a 940nm photodiode optical sensor manufactured by Rohm Semiconductor, designed for infrared detection applications. This component features a 2-SMD, No Lead package with a 120° viewing angle and 100ns response time. The product is classified as Obsolete, making identification of suitable substitute components necessary for ongoing system support and new procurement requirements.

Substiute Parts

RPMD-0100

Rohm SemiconductorIn Stock: 4110RPMD-0100 Datasheet

Current PartRFQ

RPMD-0132

Rohm SemiconductorIn Stock: 2252RPMD-0132 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RPMD-0100 is determined by the following critical parameters:

Primary Matching Criteria:

• Wavelength: 940nm (exact match required)
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant
• Regulatory Status: REACH Unaffected, ECCN EAR99

Secondary Compatibility Factors:

• Operating Temperature Range (minimum -25°C acceptable for most applications)
• Package configuration (SMD variants acceptable with circuit board layout verification)
• Reverse Voltage Rating (application-dependent; lower ratings require circuit redesign consideration)
• Dark Current characteristics (application-dependent based on signal-to-noise requirements)

The RPMD-0132 qualifies as a substitute based on matching wavelength, surface mount configuration, and regulatory compliance status. Package differences (3-SMD vs. 2-SMD) and electrical parameter variations require application-level assessment.

Parameter Comparison

Engineering Selection Recommendations

RPMD-0132 Substitution Considerations:

The RPMD-0132 maintains core functional equivalence through identical 940nm wavelength specification and shared regulatory compliance (ROHS3, REACH Unaffected, EAR99). Both components are classified as end-of-life products (Obsolete and Not For New Designs respectively), indicating limited long-term availability.

Critical Differences Requiring Circuit Assessment:

• Reverse Voltage Rating: RPMD-0132 maximum 15V versus RPMD-0100 maximum 60V. Applications requiring higher reverse bias must retain the original part or implement voltage limiting circuitry.
• Dark Current: RPMD-0132 exhibits 1nA typical dark current versus RPMD-0100 at 500pA. High-sensitivity applications may experience increased noise floor.
• Operating Temperature Lower Limit: RPMD-0132 minimum -25°C versus RPMD-0100 minimum -40°C. Cold-temperature applications require verification.
• Package Configuration: 3-SMD versus 2-SMD requires PCB layout modification and footprint verification.

For new designs, alternative 940nm photodiode sources from active product lines should be evaluated to ensure long-term supply continuity.

Frequently Asked Questions (FAQ)

Q: Can RPMD-0132 directly replace RPMD-0100 without circuit modification?

A: Direct replacement is not recommended without circuit review. The 15V reverse voltage maximum of RPMD-0132 versus 60V on RPMD-0100 requires verification that your application does not exceed 15V bias. Package differences (3-SMD vs. 2-SMD) necessitate PCB layout changes.

Q: What is the significance of the "Not For New Designs" status on RPMD-0132?

A: This designation indicates the manufacturer does not recommend this part for new product development. Both RPMD-0100 and RPMD-0132 are end-of-life components. For new applications, sourcing from active product lines is preferred.

Q: Are there electrical performance differences between these parts?

A: Yes. Dark current differs (500pA vs. 1nA), and response time is specified only for RPMD-0100 (100ns). Operating temperature ranges differ at the lower limit (-40°C vs. -25°C). These differences are application-dependent and require functional validation.

Q: What compliance certifications apply to both parts?

A: Both RPMD-0100 and RPMD-0132 are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes. Moisture Sensitivity Level is 1 (Unlimited) for both components.

Q: How do package differences affect substitution?

A: RPMD-0100 uses 2-SMD, No Lead packaging while RPMD-0132 uses 3-SMD, No Lead. Different lead counts require new PCB footprints and assembly process verification. Mechanical compatibility cannot be assumed.