RB520SM-30FHT2R Equivalent & Substitute Parts Reference

Part Overview

The RB520SM-30FHT2R, manufactured by Rohm Semiconductor, is an automotive-grade Schottky rectifier diode designed for surface mount applications. The device is AEC-Q101 qualified, rated for 30V DC reverse voltage and 200mA average rectified current, with a maximum forward voltage of 580mV at 200mA. It is housed in the EMD2 (SC-79, SOD-523) package and maintains an active product status with robust RoHS3 and REACH compliance. Engineers may seek alternative models due to procurement needs, inventory considerations, or stringent matching of voltage, current, and package parameters within the Diodes, Rectifiers category.

Key Parameters

Parameter	Value
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	30 V
Current - Average Rectified (Io)	200 mA
Voltage - Forward (Vf) (Max) @ If	580 mV @ 200 mA
Current - Reverse Leakage @ Vr	1 µA @ 10 V
Mounting Type	Surface Mount
Package / Case	SC-79, SOD-523
Supplier Device Package	EMD2
Operating Temperature - Junction	150°C (Max)
RoHS Status	ROHS3 Compliant
Product Status	Active
Grade / Qualification	Automotive / AEC-Q101
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution is determined strictly by matching electrical and mechanical parameters, as provided. The key parameters used for substitution in the Diodes, Rectifiers category are: Schottky technology, maximum reverse voltage (30V), average rectified current (200mA), maximum forward voltage at defined current, reverse leakage current, mounting type (Surface Mount), package/case (SC-79, SOD-523), supplier device package (EMD2 or SOD-523), operating temperature, product status, RoHS and REACH compliance, grade, qualification, MSL, and automotive certification. Certified and active status is mandatory.

Parameter Comparison

Parameter	RB520SM-30FHT2R	RB520SM-30T2R	1PS79SB10,115	RB520S-30-TP	SBAT54XV2T1G
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	30 V	30 V	30 V	30 V	30 V
Current - Average Rectified (Io)	200 mA	200 mA	200 mA	200 mA	200 mA
Voltage - Forward (Vf) (Max) @ If	580 mV @ 200 mA	580 mV @ 200 mA	800 mV @ 100 mA	600 mV @ 200 mA	800 mV @ 100 mA
Current - Reverse Leakage @ Vr	1 µA @ 10 V	1 µA @ 10 V	2 µA @ 25 V	1 µA @ 10 V	2 µA @ 25 V
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523
Supplier Device Package	EMD2	EMD2	SOD-523	SOD-523	SOD-523
Operating Temperature - Junction (Max)	150°C	150°C	125°C	125°C	125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Grade / Qualification	Automotive / AEC-Q101		Automotive / AEC-Q100

Engineering Selection Recommendations

All substitute parts listed have active status and ROHS3 compliance, with a Moisture Sensitivity Level of 1 (Unlimited) and REACH unaffected status. The RB520SM-30T2R shares identical key parameters with RB520SM-30FHT2R, including automotive qualification and package. 1PS79SB10,115 offers AEC-Q100 automotive qualification with matching voltage and current ratings, but has a different junction temperature specification and forward voltage reference. RB520S-30-TP and SBAT54XV2T1G match primary electrical and package parameters. For applications requiring the identical automotive AEC-Q101 qualification, RB520SM-30T2R provides a parametric match.

Frequently Asked Questions (FAQ)

Q: What parameters must be matched when substituting the RB520SM-30FHT2R Schottky diode?
A: Substitution must be based on equivalent technology, reverse voltage (30V), average rectified current (200mA), forward voltage ratings, reverse leakage current, package/case, mounting type, and device status. Compliance standards and qualification grade must align with application requirements.

Q: Are substitute diodes available in the same package and mounting style?
A: All listed substitutes are supplied in SC-79, SOD-523 surface mount packages, aligning with the mechanical requirements of RB520SM-30FHT2R.

Q: How does automotive qualification affect substitution?
A: Automotive qualification, such as AEC-Q101 or AEC-Q100, should match the application's certification needs. RB520SM-30T2R matches AEC-Q101 qualification, while 1PS79SB10,115 offers AEC-Q100.

Q: Is the operating junction temperature critical for substitution?
A: Junction temperature should not exceed the rating for the intended application. RB520SM-30FHT2R and RB520SM-30T2R are rated to 150°C, while other substitutes are rated to 125°C.

Q: Do all substitutes meet ROHS and REACH requirements?
A: All substitutes listed are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

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