FR106 Equivalent & Substitute Parts

Part Overview

The FR106 is a general-purpose rectifier diode rated for 800 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package configuration. This component is classified as obsolete by the original manufacturer, SMC Diode Solutions. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating packaging variations.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 1 A
Reverse Recovery Time (trr)	500	ns
Current - Reverse Leakage @ Vr	5	µA @ 800 V
Operating Temperature - Junction	-65 to 150	°C
Mounting Type	Through Hole	-
Package / Case	DO-204AL, DO-41, Axial	-

Substitute Part Grouping Explanation

Substitution of the FR106 rectifier diode is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 800 V minimum
Current - Average Rectified (Io): 1 A minimum
Mounting Type: Through Hole
Package / Case: DO-41 or DO-204AL (functionally equivalent axial packages)

Acceptable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Values at or below 1.3 V @ 1 A are acceptable
Reverse Recovery Time (trr): Values at or below 500 ns are acceptable
Current - Reverse Leakage @ Vr: Values at or below 5 µA are acceptable
Operating Temperature - Junction: Ranges that encompass or exceed -65°C to 150°C are acceptable

All substitute parts listed maintain the 800 V reverse voltage rating and 1 A current rating. Packaging variations between DO-41 and DO-204AL designations represent the same physical form factor and are mechanically interchangeable in through-hole applications.

Parameter Comparison

Parameter	FR106 (SMC)	FR106G (Taiwan Semiconductor)	1N4006-TP (Micro Commercial Co)	BYD13KGPHE3/73 (Vishay)
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	800 V	800 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	1.3 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A
Reverse Recovery Time (trr)	500 ns	500 ns	2 µs	3 µs
Current - Reverse Leakage @ Vr	5 µA @ 800 V	5 µA @ 800 V	5 µA @ 800 V	5 µA @ 200 V
Operating Temperature - Junction	-65 to 150 °C	-55 to 150 °C	-55 to 150 °C	-65 to 175 °C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial
Product Status	Obsolete	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

FR106G (Taiwan Semiconductor Corporation) is the primary direct substitute. This part maintains identical electrical specifications to the original FR106, including 800 V reverse voltage, 1 A current rating, 1.3 V forward voltage, and 500 ns recovery time. The FR106G is classified as Active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. The operating temperature range (-55 to 150 °C) is narrower at the lower bound compared to the original (-65 °C), which may require thermal evaluation in applications requiring sub-55 °C operation.

1N4006-TP (Micro Commercial Co) is a functional equivalent with identical voltage and current ratings. This part exhibits lower forward voltage (1.1 V versus 1.3 V) and longer reverse recovery time (2 µs versus 500 ns). The 1N4006-TP is suitable for applications where slower recovery characteristics are acceptable and lower forward voltage drop is beneficial for power efficiency. ROHS3 compliance and Active product status support long-term supply continuity.

BYD13KGPHE3/73 (Vishay General Semiconductor - Diodes Division) meets all critical electrical parameters with 800 V reverse voltage and 1 A current rating. This part offers the widest operating temperature range (-65 to 175 °C) and is ROHS3 compliant. The longer reverse recovery time (3 µs) and lower forward voltage (1.1 V) represent trade-offs similar to the 1N4006-TP. Limited inventory (670 units) may affect availability for high-volume applications.

All substitute parts are through-hole mounted in DO-41 or DO-204AL packages and are mechanically interchangeable with the original FR106.

Frequently Asked Questions (FAQ)

Q: Can FR106G be used as a direct replacement for FR106?

A: Yes. The FR106G maintains identical electrical specifications including 800 V reverse voltage, 1 A current rating, 1.3 V forward voltage, and 500 ns reverse recovery time. Both parts use the same DO-41 package configuration. The primary difference is product status: FR106G is Active while FR106 is Obsolete. The operating temperature range of FR106G (-55 to 150 °C) is narrower at the lower bound than the original FR106 (-65 to 150 °C).

Q: What is the difference between 1N4006-TP and FR106G?

A: Both parts share the same 800 V reverse voltage and 1 A current rating. The 1N4006-TP exhibits lower forward voltage (1.1 V versus 1.3 V) and significantly longer reverse recovery time (2 µs versus 500 ns). The 1N4006-TP is suitable for applications where slower switching recovery is acceptable and lower forward voltage drop reduces power dissipation. Both are ROHS3 compliant and Active status.

Q: Are DO-41 and DO-204AL packages interchangeable?

A: Yes. DO-41 and DO-204AL designations refer to the same physical axial through-hole package form factor. These designations are manufacturer-specific nomenclature for identical package geometry and pin configuration. Parts specified in either designation are mechanically and electrically interchangeable in through-hole PCB applications.

Q: What is the significance of reverse recovery time differences?

A: Reverse recovery time (trr) indicates how quickly the diode transitions from conducting to blocking state. The FR106 and FR106G specify 500 ns recovery time (Standard to Fast Recovery). The 1N4006-TP and BYD13KGPHE3/73 specify longer recovery times (2 µs and 3 µs respectively). Longer recovery times may introduce additional switching losses in high-frequency applications but are acceptable in standard rectification circuits operating at line frequency or lower switching rates.

Q: Which substitute part has the best thermal performance?

A: The BYD13KGPHE3/73 offers the widest operating temperature range (-65 to 175 °C), providing 25 °C additional headroom at the upper temperature limit compared to other substitutes. This part is suitable for applications requiring extended high-temperature operation. However, all substitute parts maintain the same 1 A current rating and 800 V voltage specification across their respective operating ranges.

Q: Are all substitute parts RoHS compliant?

A: Yes. FR106G, 1N4006-TP, and BYD13KGPHE3/73 are all ROHS3 compliant. The original FR106 does not specify RoHS status. ROHS3 compliance ensures these parts meet current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the inventory status of each substitute part?

A: FR106G has 10,626 units in stock. 1N4006-TP has 69,145 units in stock. BYD13KGPHE3/73 has 670 units in stock. The 1N4006-TP offers the highest inventory availability, while BYD13KGPHE3/73 has limited stock. For high-volume production requirements, 1N4006-TP or FR106G are preferred based on availability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message