RF501BM2SFHTL Equivalent & Substitute Parts Reference

Part Overview

The Rohm Semiconductor RF501BM2SFHTL is a surface-mount general-purpose fast recovery rectifier diode, specified for 200 V reverse voltage and 5 A average rectified current, in a TO-252-3 (DPAK) package. The part features a 25 ns reverse recovery time and a maximum forward voltage drop of 920 mV at 5 A. It holds an AEC-Q101 automotive qualification and is listed as an active product. The need for alternatives may arise due to supply constraints, obsolescence, package demands, or specific sourcing requirements.

Key Parameters

Parameter	RF501BM2SFHTL	Definition
Technology	Standard	Diode Technology Used
Voltage - DC Reverse (Vr) (Max)	200 V	Maximum Continuous Reverse Voltage
Current - Average Rectified (Io)	5A	Average Continuous Forward Current
Voltage - Forward (Vf) (Max) @ If	920 mV @ 5A	Maximum Voltage Drop at Rated Current
Reverse Recovery Time (trr)	25 ns	Time to Switch from Conducting to Blocking State
Current - Reverse Leakage @ Vr	1 µA @ 200 V	Reverse Leakage Current at Maximum Rated Voltage
Mounting Type	Surface Mount	Mounting Configuration
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	Physical Package
Operating Temperature - Junction	150°C (Max)	Maximum Junction Temperature
RoHS Status	ROHS3 Compliant	Environmental Compliance
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Handling Classification
Qualification	AEC-Q101	Automotive Grade

Substitute Part Grouping Explanation

Substitutes are grouped based on strict adherence to the following essential electrical and mechanical parameters: diode technology, maximum DC reverse voltage, average rectified current, forward voltage at rated current, reverse recovery time, reverse leakage current, package/case, mounting method, and compliance/certification status (RoHS, MSL, AEC-Q101). Substitution is valid only when these parameters match or remain within the specified product requirements.

Parameter Comparison

Parameter	RF501BM2SFHTL Rohm Semiconductor	RF501BM2STL Rohm Semiconductor	BD5200S_L2_00001 Panjit International Inc.	STTH4R02BY-TR STMicroelectronics
Technology	Standard	Standard	Schottky	Standard
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	5A	5A	5A	4A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 5A	920 mV @ 5A	900 mV @ 5A	1.05 V @ 4A
Reverse Recovery Time (trr)	25 ns	25 ns	-	30 ns
Current - Reverse Leakage @ Vr	1 µA @ 200 V	1 µA @ 200 V	50 µA @ 200 V	3 µA @ 200 V
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63
Operating Temperature - Junction	150°C (Max)	150°C (Max)	-65°C ~ 175°C	-40°C ~ 175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Qualification	AEC-Q101	Not specified	Not specified	AEC-Q101
Product Status	Active	Active	Obsolete	Active

Engineering Selection Recommendations

When selecting substitute rectifier diodes for RF501BM2SFHTL, confirm that the alternative meets the required product status (Active if current production is needed), RoHS3 compliance, and AEC-Q101 qualification if automotive grade is necessary. Both RF501BM2STL and STTH4R02BY-TR maintain active status and RoHS3 compliance, with AEC-Q101 qualification specified in the main part and STTH4R02BY-TR. BD5200S_L2_00001 is listed as obsolete and does not specify automotive qualification; its technology is Schottky, which may impact application suitability.

Frequently Asked Questions (FAQ)

Q1: Which parameters are critical when evaluating substitutes for RF501BM2SFHTL?
A1: The essential parameters are maximum DC reverse voltage, average rectified current, forward voltage at the rated current, reverse recovery time, reverse leakage current, diode technology, package/case, mounting type, RoHS and MSL compliance, and any required automotive qualification (AEC-Q101).

Q2: Can a Schottky diode be directly substituted for a standard fast recovery diode?
A2: Substitution is only valid if the electrical parameters (voltage, current, forward voltage, leakage current) and mechanical package align with requirements. Technology differences may affect application-specific characteristics.

Q3: Are package and pinout identical for all substitutes listed?
A3: All compared parts are specified in the TO-252-3 (DPAK, 2 Leads + Tab, SC-63) package and are surface mount devices.

Q4: Does product status affect the suitability of a substitute?
A4: Product status is critical for supply continuity; only active parts should be considered for current and future designs.

Q5: Is automotive qualification (AEC-Q101) required for all substitutions?
A5: Select substitutes with AEC-Q101 automotive qualification if compliance with automotive standards is necessary. Ensure compliance matches the main part where required.

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