FR306G A0G Equivalent & Substitute Parts

Part Overview

The FR306G A0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 800 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical packaging, and operational specifications to ensure direct functional replacement in circuit applications.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	800 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A
Package / Case	DO-201AD, Axial
Mounting Type	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the FR306G A0G are qualified based on the following criteria:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 800 V
Current - Average Rectified (Io): 3 A
Package / Case: DO-201AD, Axial
Mounting Type: Through Hole
Product Status: Active
RoHS Compliance: ROHS3 Compliant

Allowable Variations:

Voltage - Forward (Vf) (Max) @ If: Within component design tolerances
Operating Temperature - Junction: Extended ranges acceptable
Recovery Speed Classification: Standard or Fast Recovery acceptable
Reverse Recovery Time (trr): Variation permitted within technology specifications
Current - Reverse Leakage @ Vr: Consistent at 5 µA @ 800 V
Capacitance @ Vr, F: Minor variations acceptable

All substitute parts listed maintain electrical equivalence for 800 V, 3 A rectification applications and are compatible with DO-201AD through-hole PCB layouts.

Parameter Comparison

Parameter	FR306G A0G (Main)	1N5407-E3/54	1N5407-E3/73	GP30K-E3/54
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	800 V	800 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A	1.2 V @ 3 A	1.2 V @ 3 A	1.1 V @ 3 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)
Reverse Recovery Time (trr)	500 ns	Not specified	Not specified	5 µs
Current - Reverse Leakage @ Vr	5 µA @ 800 V	5 µA @ 800 V	5 µA @ 800 V	5 µA @ 800 V
Capacitance @ Vr, F	30 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz	40 pF @ 4V, 1MHz
Package / Case	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C	-50°C ~ 150°C	-50°C ~ 150°C	-65°C ~ 175°C
Product Status	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity with the FR306G A0G.

1N5407-E3/54 and 1N5407-E3/73 (Vishay): These parts provide electrical equivalence at 800 V, 3 A with identical reverse leakage and capacitance specifications. Forward voltage is reduced to 1.2 V @ 3 A compared to the main part's 1.3 V, resulting in lower power dissipation. Both maintain the DO-201AD package and through-hole mounting. Operating temperature range is -50°C ~ 150°C, which covers the main part's range. The primary difference between these two variants is packaging format (Cut Tape designation) and moisture sensitivity level classification.

GP30K-E3/54 (Vishay SUPERECTIFIER®): This part delivers the lowest forward voltage at 1.1 V @ 3 A, providing superior efficiency in rectification circuits. It maintains 800 V, 3 A ratings and DO-201AD packaging. The extended operating temperature range of -65°C ~ 175°C accommodates applications requiring wider thermal operation. Reverse recovery time is specified at 5 µs (slower than the main part's 500 ns fast recovery), and capacitance is slightly elevated at 40 pF @ 4V, 1MHz. This part is suitable for applications where forward voltage reduction and thermal range extension are beneficial.

All substitute parts are electrically and mechanically compatible with the FR306G A0G for direct PCB replacement in 800 V, 3 A rectifier applications.

Frequently Asked Questions (FAQ)

Q: Can the 1N5407-E3/54 directly replace the FR306G A0G?

A: Yes. Both parts share identical voltage ratings (800 V), current ratings (3 A), and DO-201AD through-hole packaging. The 1N5407-E3/54 operates within the FR306G A0G's temperature range and maintains equivalent reverse leakage and capacitance specifications.

Q: What is the difference between 1N5407-E3/54 and 1N5407-E3/73?

A: Both parts are electrically identical with 800 V, 3 A ratings and DO-201AD packaging. The primary difference is packaging format designation (Cut Tape variants) and moisture sensitivity level classification. Electrical performance and thermal characteristics are equivalent.

Q: Why does the GP30K-E3/54 have a lower forward voltage?

A: The GP30K-E3/54 is part of Vishay's SUPERECTIFIER® series, which incorporates optimized semiconductor technology to reduce forward voltage to 1.1 V @ 3 A compared to standard rectifiers. This results in lower power dissipation during rectification.

Q: Is the GP30K-E3/54 suitable for high-temperature applications?

A: Yes. The GP30K-E3/54 operates across -65°C ~ 175°C, providing a wider temperature range than the FR306G A0G (-55°C ~ 150°C). This makes it suitable for applications requiring extended thermal operation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The FR306G A0G and all listed substitute parts (1N5407-E3/54, 1N5407-E3/73, GP30K-E3/54) are ROHS3 compliant and REACH unaffected.

Q: Can I use these parts interchangeably on the same PCB?

A: Yes. All substitute parts use the DO-201AD axial through-hole package with identical pin spacing and mounting requirements. They are mechanically and electrically interchangeable for PCB applications designed for 800 V, 3 A rectification.

Q: What is the reverse recovery time difference between the main part and substitutes?

A: The FR306G A0G specifies 500 ns fast recovery. The 1N5407 variants do not specify reverse recovery time but are classified as standard recovery (>500ns). The GP30K-E3/54 specifies 5 µs recovery time. Selection depends on circuit switching frequency requirements.

Q: Do all parts have the same reverse leakage current?

A: Yes. All parts maintain 5 µA @ 800 V reverse leakage current, ensuring consistent reverse bias behavior across all substitute options.

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