RF081LAM2STR Equivalent & Substitute Parts Reference

Part Overview

The Rohm Semiconductor RF081LAM2STR is a surface-mount general-purpose diode in the Diodes, Rectifiers product category. It features a 200 V maximum reverse DC voltage, 1.1 A average rectified current, and fast recovery characteristics. The part is supplied in SOD-128 packaging and is listed as "Active." Identifying equivalent and substitute parts is necessary to ensure supply continuity and manufacturing flexibility, especially for volume requirements, inventory management, or automotive qualification needs.

Substiute Parts

RF081LAM2STR

Rohm SemiconductorIn Stock: 4009RF081LAM2STR Datasheet

Current PartRFQ

RF081LAM2STFTR

Rohm SemiconductorIn Stock: 45452RF081LAM2STFTR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for RF081LAM2STR must match the critical electrical and mechanical parameters as specified:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 1.1A
• Voltage - Forward (Vf) (Max) @ If: 980 mV @ 1 A
• Speed: Fast Recovery =< 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): 25 ns
• Current - Reverse Leakage @ Vr: 10 µA @ 200 V
• Mounting Type: Surface Mount
• Package / Case: SOD-128
• Supplier Device Package: PMDTM
• Operating Temperature - Junction: 150°C (Max)

Only parts with identical or fully compatible parameters, compliance standards, and package specifications are included in the equivalency list. Substitution is strictly restricted to validated, explicitly defined parametric matches.

Parameter Comparison

Engineering Selection Recommendations

Both RF081LAM2STR and RF081LAM2STFTR are classified as "Active" with identical electrical and mechanical specifications. They hold ROHS3 compliance and REACH unaffected status. RF081LAM2STFTR provides an automotive-qualified option (AEC-Q101) while maintaining complete parametric equivalence. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for both parts. Select either part based on available certifications and compliance requirements.

Frequently Asked Questions (FAQ)

Q: What parameters must match for a diode to be considered an equivalent substitute for RF081LAM2STR?
A: The following parameters must be identical: Voltage - DC Reverse (Vr) (Max), Current - Average Rectified (Io), Voltage - Forward (Vf) (Max) @ If, Speed, Reverse Recovery Time (trr), Current - Reverse Leakage @ Vr, Mounting Type, Package / Case, Supplier Device Package, Operating Temperature - Junction, RoHS Status, Moisture Sensitivity Level (MSL), and REACH Status.

Q: Is the package type critical when selecting an equivalent diode?
A: Yes. Both RF081LAM2STR and its substitutes utilize the SOD-128 surface-mount package, ensuring mechanical and footprint compatibility.

Q: Are automotive grade and compliance differences relevant to substitution?
A: Automotive qualification (AEC-Q101) is an additional parameter in RF081LAM2STFTR. Select this part specifically when automotive standards are required; both parts otherwise meet general-purpose and compliance requirements.

Q: Can RF081LAM2STFTR be used in place of RF081LAM2STR without electrical or mechanical modification?
A: Yes. All specified parameters match, and both use the SOD-128/PMDTM package. No modifications are required for direct substitution.

Q: How does Moisture Sensitivity Level (MSL) affect the selection?
A: Both parts have MSL 1 (Unlimited), suitable for standard industrial and automotive reflow processes.