APD340VG-G1 Equivalent & Substitute Parts

Part Overview

The APD340VG-G1 is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 40 V DC reverse voltage and 3 A average rectified current in a through-hole DO-15 package. This component is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. Substitute parts must maintain electrical performance characteristics while accommodating potential package and availability differences.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 3 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 40 V
Mounting Type	Through Hole
Operating Temperature - Junction	-50°C ~ 125°C
Technology	Schottky
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the APD340VG-G1 are identified based on electrical parameter equivalence within the Schottky rectifier diode category. The substitution criteria are:

Primary Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 500 mV @ 3 A
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr: 500 µA @ 40 V

Secondary Parameters (Compatible Range):

Mounting Type: Through Hole
Operating Temperature - Junction: -50°C minimum to 125°C maximum
Technology: Schottky
RoHS Compliance: ROHS3 Compliant

Package Consideration:

Original package: DO-204AC, DO-15, Axial
Substitute packages: DO-201AD, Axial (mechanically compatible through-hole axial configuration)

Parameter Comparison

Parameter	APD340VG-G1 (Diodes Inc.)	SB340E-G (Comchip Technology)	Match Status
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	Equivalent
Current - Average Rectified (Io)	3 A	3 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	500 mV @ 3 A	500 mV @ 3 A	Equivalent
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Equivalent
Current - Reverse Leakage @ Vr	500 µA @ 40 V	500 µA @ 40 V	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Operating Temperature - Junction	-50°C ~ 125°C	-65°C ~ 125°C	Compatible (SB340E-G extends lower range)
Technology	Schottky	Schottky	Equivalent
Package / Case	DO-204AC, DO-15, Axial	DO-201AD, Axial	Compatible (both axial through-hole)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Obsolete	Active	Substitute is active production

Engineering Selection Recommendations

The SB340E-G manufactured by Comchip Technology is a direct electrical equivalent to the APD340VG-G1. Both components meet identical electrical specifications for reverse voltage, forward current, forward voltage drop, switching speed, and reverse leakage current. Both are ROHS3 compliant and rated for the same junction temperature maximum of 125°C.

The SB340E-G offers the following advantages for component selection:

Product Status: The SB340E-G maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete APD340VG-G1.

Temperature Range: The SB340E-G extends the minimum operating temperature to -65°C, providing a wider operating envelope than the APD340VG-G1 (-50°C minimum).

Compliance: Both components are ROHS3 compliant. The SB340E-G is REACH Unaffected, while the APD340VG-G1 is REACH Affected, potentially simplifying regulatory documentation for new designs.

Package Compatibility: Both components use axial through-hole configurations (DO-15 and DO-201AD respectively). These packages are mechanically compatible in standard through-hole PCB layouts with equivalent lead spacing and mounting characteristics.

Frequently Asked Questions (FAQ)

Q: Can the SB340E-G directly replace the APD340VG-G1 in existing designs?

A: Yes. The SB340E-G meets all electrical specifications of the APD340VG-G1, including reverse voltage (40 V), forward current (3 A), forward voltage drop (500 mV @ 3 A), switching speed (Fast Recovery ≤ 500 ns), and reverse leakage current (500 µA @ 40 V). Both components are through-hole axial diodes suitable for standard PCB mounting.

Q: Are there package differences between these parts?

A: The APD340VG-G1 uses a DO-15 package, while the SB340E-G uses a DO-201AD package. Both are axial through-hole configurations with compatible lead spacing and mounting characteristics for standard PCB applications.

Q: What is the significance of the product status difference?

A: The APD340VG-G1 is classified as obsolete, indicating discontinued production. The SB340E-G is in active production, ensuring availability for current and future procurement needs.

Q: Do both parts have the same temperature operating range?

A: Both parts operate to a maximum junction temperature of 125°C. The SB340E-G extends the minimum operating temperature to -65°C, compared to -50°C for the APD340VG-G1. This provides a wider operating envelope for the substitute part.

Q: Are there compliance differences between these parts?

A: Both parts are ROHS3 compliant. The SB340E-G is REACH Unaffected, while the APD340VG-G1 is REACH Affected. For new designs, the SB340E-G may simplify regulatory compliance documentation.

Q: What electrical parameters must match for substitution?

A: Critical matching parameters are reverse voltage (40 V), average rectified current (3 A), forward voltage drop (500 mV @ 3 A), switching speed (Fast Recovery ≤ 500 ns, > 200 mA), and reverse leakage current (500 µA @ 40 V). The SB340E-G meets all these specifications.

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