RF071LAM4STR Equivalent & Substitute Parts Reference

Part Overview

The RF071LAM4STR, manufactured by Rohm Semiconductor, is a surface mount, general-purpose fast recovery diode within the Diodes, Rectifiers category. It has a maximum DC reverse voltage of 400V, a continuous average rectified current of 1A, and is packaged in a SOD-128/PMDTM case. The product features fast recovery time and is RoHS3 compliant. When inventory constraints arise or specific certifications are required, evaluating suitable substitutes with equivalent electrical and mechanical specifications is necessary to ensure consistent functionality and system compatibility.

Key Parameters

Parameter	Value
Manufacturer	Rohm Semiconductor
Category	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	400 V
Current - Average Rectified (Io)	1A
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 700 mA
Speed	Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	25 ns
Current - Reverse Leakage @ Vr	10 µA @ 400 V
Mounting Type	Surface Mount
Package / Case	SOD-128
Supplier Device Package	PMDTM
Operating Temperature - Junction	150°C (Max)
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution for the RF071LAM4STR is determined by exact matches in electrical and mechanical parameters, including DC reverse voltage, average rectified current, forward voltage drop at rated current, reverse recovery speed, reverse leakage current at rated voltage, package type, mounting type, and maximum junction temperature. Additional equivalence may be designated by compliance certifications and automotive qualification as indicated in the provided data. Only parts matching these parameters and within the same product category and form factor are grouped as valid substitutes.

Parameter Comparison

Part Number	Manufacturer	Category	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	MSL	REACH Status
RF071LAM4STR	Rohm Semiconductor	Diodes, Rectifiers	400 V	1A	1.25 V @ 700 mA	Fast Recovery =< 500ns, > 200mA (Io)	25 ns	10 µA @ 400 V	Surface Mount	SOD-128	PMDTM	150°C (Max)	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
RF071LAM4STFTR	Rohm Semiconductor	Diodes, Rectifiers	400 V	1A	1.25 V @ 700 mA	Fast Recovery =< 500ns, > 200mA (Io)	25 ns	10 µA @ 400 V	Surface Mount	SOD-128	PMDTM	150°C (Max)	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
RF101LAM4STFTR	Rohm Semiconductor	Diodes, Rectifiers	400 V	1A	1.25 V @ 1 A	Fast Recovery =< 500ns, > 200mA (Io)	25 ns	10 µA @ 400 V	Surface Mount	SOD-128	PMDTM	150°C (Max)	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
RF101LAM4STR	Rohm Semiconductor	Diodes, Rectifiers	400 V	1A	1.25 V @ 1 A	Fast Recovery =< 500ns, > 200mA (Io)	25 ns	10 µA @ 400 V	Surface Mount	SOD-128	PMDTM	150°C (Max)	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected

Engineering Selection Recommendations

All parts listed, including RF071LAM4STFTR, RF101LAM4STFTR, and RF101LAM4STR, have an active product status and share ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH unaffected status. Selection among these parts may be governed by inventory availability, compliance needs, or specific qualification such as automotive grade where applicable.

Frequently Asked Questions (FAQ)

Q1: What criteria are used to determine substitute equivalency for RF071LAM4STR?
A1: Substitution is based strictly on key electrical parameters (reverse voltage, forward current, forward voltage, reverse recovery time, reverse leakage current), package type (SOD-128/PMDTM), mounting type (surface mount), and compliance status.

Q2: Are all substitute parts in the same package as the RF071LAM4STR?
A2: Yes, all substitutes (RF071LAM4STFTR, RF101LAM4STFTR, RF101LAM4STR) are in the SOD-128 package with PMDTM supplier device package.

Q3: What compliance and status factors are considered for interchangeability?
A3: Product status (Active), RoHS3 compliance, Moisture Sensitivity Level, and REACH status are matched across all substitutes for consistent regulatory and handling profiles.

Q4: Can substitutes be used in the same PCB footprint as the RF071LAM4STR?
A4: Yes, all listed substitutes share the same SOD-128 surface mount package, which ensures compatibility with the same PCB footprint.

Q5: Are the electrical performance characteristics identical for all listed substitutes?
A5: All listed substitutes match key electrical characteristics, including maximum voltage, current rating, reverse recovery time, and reverse leakage, as provided in the data.

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