MA3J1470GL Equivalent & Substitute Parts

Part Overview

The MA3J1470GL is a general-purpose diode array manufactured by Panasonic Electronic Components, configured as a 1 Pair Series Connection with 80 V reverse voltage rating and 100 mA average rectified current per diode. The device is housed in an SC-85 surface mount package (SMini3-F2 supplier package). This part is classified as obsolete, necessitating identification of active substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

MA3J1470GL

Panasonic Electronic ComponentsIn Stock: 38114MA3J1470GL Datasheet

Current PartRFQ

BAV99WT1G

onsemiIn Stock: 125482BAV99WT1G Datasheet

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DA228UT106

Rohm SemiconductorIn Stock: 19018DA228UT106 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MA3J1470GL is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Diode configuration must be 1 Pair Series Connection
• Voltage - DC Reverse (Vr) rating must equal or exceed 80 V
• Current - Average Rectified (Io) per diode must equal or exceed 100 mA
• Voltage - Forward (Vf) characteristics must be compatible at rated current
• Speed classification and reverse recovery time must support the application's switching requirements
• Reverse leakage current must remain within acceptable limits for the circuit

Mechanical Compatibility Criteria:

• Mounting type must be Surface Mount
• Package footprint must be compatible with the original SC-85 or equivalent surface mount packages
• Moisture Sensitivity Level must be acceptable for the assembly process

The substitute parts identified (BAV99WT1G and DA228UT106) meet or exceed the electrical specifications of the MA3J1470GL while offering active product status and improved availability. Both substitutes maintain the 1 Pair Series Connection configuration and surface mount technology required for direct functional replacement.

Parameter Comparison

Engineering Selection Recommendations

DA228UT106 (Rohm Semiconductor) is the primary substitute for the MA3J1470GL. This part maintains identical electrical specifications for voltage, current, and forward voltage characteristics. The DA228UT106 is classified as active with ROHS3 compliance and REACH unaffected status, ensuring long-term availability and regulatory compliance. The SC-70 (SOT-323) package provides a smaller footprint than the original SC-85, requiring PCB layout modification but offering improved space efficiency. The reverse leakage current specification matches the original part at 100 nA @ 80 V.

BAV99WT1G (onsemi) serves as a secondary substitute with enhanced electrical performance. This part exceeds the original specifications with 100 V reverse voltage rating (versus 80 V) and 215 mA current capability (versus 100 mA). The BAV99WT1G is active with ROHS3 compliance and REACH unaffected status. The fast recovery speed classification (≤ 500ns) provides improved switching performance compared to the small signal classification of the MA3J1470GL. The SC-70 (SOT-323) package requires the same PCB layout modification as the DA228UT106. Higher reverse leakage current (2.5 µA @ 70 V) may require circuit evaluation in low-leakage applications.

Both substitutes are surface mount devices with unlimited moisture sensitivity levels, compatible with standard assembly processes. Selection between DA228UT106 and BAV99WT1G depends on circuit requirements for voltage margin, current headroom, and switching speed performance.

Frequently Asked Questions (FAQ)

Q: Can the MA3J1470GL be directly replaced with BAV99WT1G or DA228UT106 without circuit modification?

A: Both substitutes maintain the 1 Pair Series Connection configuration and surface mount technology. However, package footprint differs: the original SC-85 (SMini3-F2) differs from the SC-70 (SOT-323) packages of both substitutes. PCB layout modification is required to accommodate the different package geometry. Electrical functionality is preserved as both substitutes meet or exceed the original specifications.

Q: What are the key electrical differences between the two substitute parts?

A: DA228UT106 matches the MA3J1470GL specifications exactly for voltage (80 V), current (100 mA), and forward voltage (1.2 V @ 100 mA). BAV99WT1G provides higher voltage rating (100 V), higher current capability (215 mA), and faster recovery time (6 ns versus 3 ns). BAV99WT1G exhibits higher reverse leakage current (2.5 µA @ 70 V versus 100 nA @ 75 V).

Q: Are both substitute parts compliant with current regulatory requirements?

A: Yes. Both BAV99WT1G and DA228UT106 are ROHS3 compliant and REACH unaffected. Both carry MSL 1 (Unlimited) moisture sensitivity ratings, compatible with standard surface mount assembly processes.

Q: Which substitute should be selected for a low-leakage application?

A: DA228UT106 is the appropriate choice for low-leakage requirements, matching the original MA3J1470GL specification of 100 nA @ 80 V. BAV99WT1G exhibits 2.5 µA @ 70 V reverse leakage, which may be unsuitable for sensitive analog circuits.

Q: What is the impact of package change from SC-85 to SC-70?

A: The SC-70 (SOT-323) package is smaller than the SC-85 (SMini3-F2) package. PCB footprint modification is required. The SC-70 package is a standard industry format with widespread design tool support. Mechanical compatibility with the circuit board layout must be verified before implementation.

Q: Are there any temperature operating range differences between the original and substitutes?

A: The MA3J1470GL and DA228UT106 both specify 150°C maximum junction temperature. BAV99WT1G specifies an extended operating range of -65°C to 150°C, providing improved low-temperature performance. For applications operating below 0°C, BAV99WT1G offers superior thermal performance.