CMLD6001 TR Equivalent & Substitute Parts

Part Overview

The CMLD6001 TR is a dual independent diode array manufactured by Central Semiconductor Corp, designed for general-purpose rectification applications requiring 75 V reverse voltage rating and 250 mA average rectified current per diode. The device is housed in a surface mount SOT-563/SOT-666 package configuration.

This part is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode array.

Substiute Parts

CMLD6001 TR

Central Semiconductor CorpIn Stock: 975CMLD6001 TR Datasheet

Current PartRFQ

1SS361UDJ-7

Diodes IncorporatedIn Stock: 339571SS361UDJ-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMLD6001 TR is determined by the following critical parameters:

Functional Requirements:

• Diode configuration must be 2 independent diodes
• Reverse voltage rating must equal or exceed 75 V
• Average rectified current per diode must equal or exceed 250 mA (DC)
• Forward voltage drop must not exceed 1.1 V @ 100 mA
• Operating temperature range must encompass -65°C to 150°C

Physical Requirements:

• Surface mount technology
• Package compatibility with SOT-563 or SOT-666 footprints or equivalent miniature surface mount packages

Reliability Requirements:

• Moisture sensitivity level of 1 (Unlimited) or equivalent
• Standard or faster recovery speed characteristics

The substitute part 1SS361UDJ-7 meets these criteria with electrical parameters that equal or exceed the CMLD6001 TR specifications, while maintaining surface mount compatibility and environmental compliance.

Parameter Comparison

Engineering Selection Recommendations

The 1SS361UDJ-7 manufactured by Diodes Incorporated is a qualified substitute for the obsolete CMLD6001 TR based on the following engineering criteria:

Electrical Compatibility: The 1SS361UDJ-7 meets or exceeds all critical electrical parameters. The 80 V reverse voltage rating provides 5 V margin above the 75 V requirement. Current ratings are identical at 250 mA per diode. Forward voltage is 1.23 V versus 1.1 V, representing a 0.13 V increase that remains within typical circuit tolerance margins for general-purpose rectification applications.

Product Status and Supply: The 1SS361UDJ-7 is classified as active product with 33,903 units in stock, ensuring long-term availability and supply chain continuity compared to the obsolete CMLD6001 TR status.

Compliance and Certification: The 1SS361UDJ-7 carries ROHS3 compliance certification and maintains REACH unaffected status, matching the environmental compliance profile of the original part.

Package Consideration: The substitute uses SOT-963 packaging instead of SOT-563/SOT-666. PCB layout modification is required to accommodate the different package footprint. Physical dimensions and pin configuration must be verified against design specifications before implementation.

Recovery Characteristics: The 1SS361UDJ-7 exhibits faster recovery characteristics (4 ns versus 3 µs), which provides improved switching performance and reduced switching losses in rectification circuits.

Frequently Asked Questions (FAQ)

Q: Can the 1SS361UDJ-7 directly replace the CMLD6001 TR without PCB modification?

A: No. While electrical parameters are compatible, the package families differ (SOT-963 versus SOT-563/SOT-666). PCB layout redesign is required to accommodate the different footprint and pin spacing.

Q: What is the significance of the higher forward voltage in the 1SS361UDJ-7?

A: The 1SS361UDJ-7 forward voltage is 1.23 V compared to 1.1 V for the CMLD6001 TR. This 0.13 V difference is typical for different diode technologies and manufacturing processes. For general-purpose rectification, this variance is generally acceptable and should be verified against specific circuit requirements.

Q: Does the faster recovery time of the 1SS361UDJ-7 affect circuit operation?

A: The 1SS361UDJ-7 recovery time of 4 ns is significantly faster than the CMLD6001 TR at 3 µs. Faster recovery reduces switching losses and improves efficiency in rectification circuits. This is a beneficial characteristic that does not create compatibility issues.

Q: Are there any compliance differences between the two parts?

A: The 1SS361UDJ-7 carries explicit ROHS3 compliance certification. Both parts maintain REACH unaffected status and EAR99 export classification. The substitute provides enhanced environmental compliance documentation.

Q: What is the impact of higher reverse leakage current in the 1SS361UDJ-7?

A: The 1SS361UDJ-7 reverse leakage is 1 µA at 80 V compared to 500 pA at 75 V for the CMLD6001 TR. This represents a higher leakage characteristic. For general-purpose rectification applications, this difference is typically acceptable. Applications requiring extremely low leakage should evaluate circuit-specific requirements.

Q: Is the 80 V rating of the 1SS361UDJ-7 suitable for 75 V applications?

A: Yes. The 80 V rating exceeds the 75 V requirement, providing a 5 V safety margin. This is a standard engineering practice and does not create compatibility issues.

Q: What inventory status should be considered for production planning?

A: The CMLD6001 TR has 919 units in stock but is obsolete. The 1SS361UDJ-7 has 33,903 units in stock and is active product. For new designs or ongoing production, the 1SS361UDJ-7 provides superior supply chain security.