FMB-2306 Equivalent & Substitute Parts Reference

Part Overview

The FMB-2306 from Sanken Electric USA Inc. is a Schottky diode array with a 1 Pair Common Cathode configuration, designed for rectification applications up to 60 V DC Reverse (Vr) and 15A Average Rectified Current (Io) per diode. It utilizes a fast recovery Schottky technology within a TO-220-3 Full Pack through-hole package. As the product status is Obsolete, it is essential to identify alternative models to ensure continued design support and replacement availability for existing applications.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	60 V
Current - Average Rectified (Io) (per Diode)	15A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 15 A
Speed	Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	8 mA @ 60 V
Operating Temperature - Junction	-40°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3 Full Pack
Supplier Device Package	TO-220F
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitute diode rectifiers for FMB-2306 are identified strictly by matching the following key parameters: Diode Configuration (1 Pair Common Cathode), Schottky technology, maximum Reverse Voltage (Vr) of 60 V, Average Rectified Current (Io) of 15A per diode, maximum Forward Voltage (Vf) at 15A, fast recovery speed (≤500ns), Through Hole mounting in a TO-220-3 Full Pack package, and RoHS compliance. Only parts with equivalent or superior electrical and mechanical specifications within these criteria are selected as direct substitutes.

Parameter Comparison

Parameter	Main: FMB-2306 Sanken	Substitute: FMW-4306 Sanken	Similar: RB225T-60 Rohm
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	60 V	60 V	60 V
Current - Average Rectified (Io) (per Diode)	15A	15A	15A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 15 A	700 mV @ 15 A	630 mV @ 15 A
Speed	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	8 mA @ 60 V	3 mA @ 60 V	600 µA @ 60 V
Operating Temperature - Junction	-40°C ~ 150°C	-40°C ~ 150°C	150°C (Max)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3 Full Pack	TO-220-3 Full Pack	TO-220-3 Full Pack
Supplier Device Package	TO-220F	TO-220F-3	TO-220FN
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

The FMB-2306 is classified as Obsolete. Both FMW-4306 and RB225T-60 are Active and RoHS compliant. These substitutes meet all provided environmental compliance and certifications necessary for applications requiring continued RoHS adherence. All parts listed hold ECCN EAR99, ensuring equivalent export classification.

Frequently Asked Questions (FAQ)

Q1: Which key parameters must match for a rectifier diode to be a direct substitute for FMB-2306?
A1: Critical parameters include diode configuration (1 Pair Common Cathode), Schottky technology, maximum DC reverse voltage (60V), maximum average rectified current per diode (15A), maximum forward voltage at the operational current, recovery speed, package type (TO-220-3 Full Pack), mounting type, and RoHS compliance.

Q2: Are there any packaging or mechanical form factor differences among FMB-2306, FMW-4306, and RB225T-60?
A2: All parts utilize a TO-220-3 Full Pack through-hole package. The supplier device package may be denoted as TO-220F, TO-220F-3, or TO-220FN as per manufacturer designation, but these reflect package compatibility.

Q3: What compliance information should be checked for substitute selection?
A3: Verify RoHS status, MSL (Moisture Sensitivity Level), and ECCN classification. All listed substitutes are RoHS compliant and have MSL rating of 1 (unlimited), suitable for leaded through-hole processes.

Q4: Are there differences in reverse leakage or forward voltage between these parts?
A4: There are differences in maximum reverse leakage current and maximum forward voltage. For instance, FMW-4306 specifies a maximum reverse leakage of 3 mA and RB225T-60 specifies 600 µA, compared to FMB-2306's 8 mA. Maximum forward voltage at 15A also varies slightly.

Q5: Can the substitute parts be used in the same circuit without mechanical changes?
A5: All substitutes are through-hole diodes in TO-220-3 Full Pack packages, enabling direct mechanical interchangeability based on the provided package information.

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