SB240E-G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SB240E-G is a 40V, 2A Schottky rectifier diode manufactured by Comchip Technology in DO-15 (DO-204AC) axial through-hole package. This component is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Equivalent and substitute parts are identified based on matching electrical performance parameters and compatible package configurations within the SB240 base product family.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 40 V
Operating Temperature - Junction	-65°C ~ 125°C
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Technology	Schottky
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitution of SB240E-G is determined by three critical parameters: reverse voltage rating (40V), average rectified current (2A), and forward voltage drop (500 mV @ 2A). All substitute parts maintain these core electrical specifications. Package compatibility is classified into two groups: DO-204AC (DO-15) axial and DO-204AL (DO-41) axial configurations. Both package types are mechanically compatible with through-hole mounting but differ in physical dimensions and lead spacing. Manufacturer variants from Vishay General Semiconductor - Diodes Division are qualified as direct substitutes when electrical parameters match exactly or remain within acceptable tolerance. The SB240 base product number identifies all parts within this substitution family.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Package / Case	Inventory (Pcs)
SB240E-G	Comchip Technology	40 V	2 A	500 mV @ 2 A	DO-204AC, DO-15	2369
SB240-E3/73	Vishay General Semiconductor	40 V	2 A	500 mV @ 2 A	DO-204AC, DO-15	5300
SB240-E3/54	Vishay General Semiconductor	40 V	2 A	500 mV @ 2 A	DO-204AC, DO-15	1600
SB240S-E3/73	Vishay General Semiconductor	40 V	2 A	500 mV @ 2 A	DO-204AL, DO-41	2503
SB240S-E3/54	Vishay General Semiconductor	40 V	2 A	550 mV @ 2 A	DO-204AL, DO-41	38853

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and full RoHS3 compliance. Selection between DO-204AC (DO-15) and DO-204AL (DO-41) package variants depends on PCB layout and through-hole spacing requirements. SB240-E3/73 and SB240-E3/54 are direct electrical equivalents in DO-204AC packaging with identical forward voltage specifications. SB240S-E3/73 maintains identical electrical performance in DO-204AL packaging. SB240S-E3/54 operates at 550 mV forward voltage, representing a 50 mV increase from the primary specification; this variant is suitable only when forward voltage tolerance permits the higher value. All parts share identical reverse voltage, rectified current, leakage current, and temperature range specifications. Inventory availability varies; SB240S-E3/54 offers the highest stock level at 38,853 pieces.

Frequently Asked Questions (FAQ)

Q: Can SB240S-E3/54 replace SB240E-G directly?

A: SB240S-E3/54 is electrically compatible with respect to voltage and current ratings. The forward voltage specification differs at 550 mV versus 500 mV. Substitution is valid only if circuit design tolerates the additional 50 mV forward voltage drop. Package configuration differs: SB240S-E3/54 uses DO-204AL (DO-41) versus SB240E-G DO-204AC (DO-15), requiring PCB layout verification for lead spacing compatibility.

Q: What is the difference between DO-204AC and DO-204AL packages?

A: Both are axial through-hole Schottky diode packages. DO-204AC (DO-15) and DO-204AL (DO-41) differ in physical dimensions and lead spacing. Component selection must match PCB hole spacing and layout requirements. Electrical performance is independent of package designation.

Q: Are all substitute parts RoHS3 compliant?

A: All parts listed in this reference maintain RoHS3 compliance and REACH unaffected status, matching the original SB240E-G specifications.

Q: Which substitute offers the best inventory availability?

A: SB240S-E3/54 provides the highest stock level at 38,853 pieces. This part operates at 550 mV forward voltage and uses DO-204AL (DO-41) packaging.

Q: Can I use SB240-E3/73 as a direct replacement for SB240E-G?

A: SB240-E3/73 is a direct electrical and package equivalent. Both use DO-204AC (DO-15) packaging with identical 40V, 2A, and 500 mV specifications. Substitution requires no circuit modifications.

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