MMSD914-TP Equivalent & Substitute Parts

Part Overview

The MMSD914-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 75 V DC reverse voltage and 200 mA average rectified current in a surface mount SOD-123 package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

MMSD914-TP

Micro Commercial CoIn Stock: 2002MMSD914-TP Datasheet

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1N4148W_R1_00001

Panjit International Inc.In Stock: 56271N4148W_R1_00001 Datasheet

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MMSD914T1G

onsemiIn Stock: 236185MMSD914T1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMSD914-TP are identified based on the following criteria:

Primary Substitution Criteria:

• Package / Case: SOD-123 (surface mount, identical footprint)
• Mounting Type: Surface Mount
• Current - Average Rectified (Io): 200 mA (minimum requirement)
• Voltage - DC Reverse (Vr) (Max): 75 V or greater (equal or higher rating)
• Speed Classification: Small Signal ≤ 200mA (Io), Any Speed
• Operating Temperature Range: -55°C to 150°C (minimum requirement)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitution Logic: Parts are grouped as equivalent when they maintain identical or superior electrical ratings within the specified parameters. Forward voltage, reverse leakage current, reverse recovery time, and capacitance are secondary parameters that may vary within acceptable ranges for general-purpose rectification applications. All substitute parts listed maintain the same package footprint and mounting technology, ensuring mechanical and electrical compatibility in PCB assembly.

Parameter Comparison

Engineering Selection Recommendations

MMSD914-TP (Micro Commercial Co) — Primary Part

The MMSD914-TP is the specified component with Active product status and full RoHS3 compliance. Selection of this part is appropriate when supply from Micro Commercial Co is available and design specifications explicitly require this manufacturer's device.

1N4148W_R1_00001 (Panjit International Inc.) — Equivalent Substitute

The 1N4148W_R1_00001 is electrically equivalent to the MMSD914-TP with identical voltage and current ratings, matching package, and identical operating temperature range. This part is Active status and RoHS3 compliant. The forward voltage specification differs at a different test current (1.25 V @ 150 mA versus 1 V @ 10 mA), and reverse leakage current is lower (2.5 µA versus 5 µA). Capacitance is lower (1.5 pF versus 4 pF). These parameter variations remain within acceptable ranges for general-purpose rectification. This substitute is suitable for direct replacement in applications where Panjit International Inc. supply is preferred or required.

MMSD914T1G (onsemi) — Higher Voltage Rating Substitute

The MMSD914T1G is manufactured by onsemi and shares the same base product number (MMSD914) as the primary part. This device is rated for 100 V DC reverse voltage, exceeding the 75 V requirement of the MMSD914-TP. Current rating, forward voltage, reverse recovery time, and capacitance are identical or equivalent. Operating temperature range and RoHS3 compliance match the primary part. This substitute is suitable for applications where higher reverse voltage margin is beneficial or where onsemi supply is required. The higher voltage rating does not create incompatibility in circuits designed for 75 V operation.

All three parts maintain Active product status, RoHS3 compliance, MSL Level 1, and identical SOD-123 surface mount packaging, ensuring mechanical and thermal compatibility in PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the 1N4148W_R1_00001 be used as a direct replacement for the MMSD914-TP?

A: Yes. Both parts are rated for 75 V DC reverse voltage and 200 mA average rectified current in identical SOD-123 packages. Operating temperature ranges and RoHS compliance are identical. The 1N4148W_R1_00001 has lower reverse leakage current and lower capacitance, which are acceptable variations for general-purpose rectification circuits.

Q: What is the difference between the MMSD914-TP and MMSD914T1G?

A: The MMSD914T1G is rated for 100 V DC reverse voltage compared to 75 V for the MMSD914-TP. All other electrical parameters, package type, and compliance certifications are equivalent. The higher voltage rating of the MMSD914T1G provides additional reverse voltage margin without affecting circuit operation in 75 V applications.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the SOD-123 surface mount package, which defines an identical PCB footprint. No layout modifications are required when substituting between these parts.

Q: Do these parts have the same moisture sensitivity requirements?

A: Yes. All three parts are classified as MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can the MMSD914T1G be used in a circuit designed for the MMSD914-TP?

A: Yes. The MMSD914T1G has a higher reverse voltage rating (100 V versus 75 V) and identical forward voltage and current characteristics. Higher voltage-rated diodes operate correctly in lower-voltage applications without performance degradation.

Q: What is the significance of the different forward voltage test conditions between these parts?

A: Forward voltage is measured at different test currents: MMSD914-TP at 10 mA (1 V max) and 1N4148W_R1_00001 at 150 mA (1.25 V max). These measurements reflect device behavior at different operating points. Both specifications are within acceptable ranges for general-purpose rectification and do not prevent substitution.

Q: Are all parts RoHS3 compliant?

A: Yes. All three parts are RoHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for electronic component use.