FFP08D60L2 Equivalent & Substitute Parts

Part Overview

The FFP08D60L2 is a general-purpose rectifier diode manufactured by onsemi, rated for 600 V DC reverse voltage and 8 A average rectified current in a through-hole TO-220-2 package. This component is classified as obsolete, indicating that direct replacement with active production alternatives is necessary for new designs and ongoing procurement requirements. The diode features fast recovery characteristics with a reverse recovery time of 25 ns, suitable for standard rectification applications requiring moderate current handling at 600 V operation.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	8	A
Voltage - Forward (Vf) (Max) @ If	3.6 V @ 8 A	V
Reverse Recovery Time (trr)	25	ns
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Mounting Type	Through Hole	—
Package / Case	TO-220-2	—
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the FFP08D60L2 is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Critical Parameters for Substitution:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 600 V
Current - Average Rectified (Io): Must equal or exceed 8 A
Mounting Type: Must be through-hole
Package / Case: Must be TO-220-2 or compatible TO-220AC variant
Speed Classification: Must maintain fast recovery characteristics (≤ 500ns, > 200mA)
RoHS Compliance: Must maintain ROHS3 or equivalent compliance status

Substitute parts are grouped into two categories based on current rating alignment:

Category 1: Direct Current Rating Match (8 A) Parts rated at exactly 8 A average rectified current provide direct functional equivalence with minimal circuit redesign considerations.

Category 2: Higher Current Rating (10 A, 20 A, 25 A) Parts rated above 8 A provide enhanced current handling capability while maintaining all other electrical specifications. These parts are electrically compatible and offer design margin for applications requiring higher current capacity.

Category 3: Lower Current Rating (3 A, 5 A, 6 A) Parts rated below 8 A are listed for reference only and do not constitute valid substitutes for the FFP08D60L2 due to insufficient current capacity.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Temp Junction (Max) [°C]	Product Status	RoHS Status
FFP08D60L2	onsemi	600	8	3.6 @ 8 A	25	10 @ 600 V	TO-220-2	150	Obsolete	ROHS3
PSDP0860S1_T0_00001	Panjit International Inc.	600	8	2.3 @ 8 A	55	100 @ 600 V	TO-220-2	150	Active	ROHS3
STTH806DIRG	STMicroelectronics	600	8	1.85 @ 8 A	55	8 @ 600 V	TO-220-2	175	Active	ROHS3
DHG10I600PA	IXYS	600	10	2.35 @ 10 A	35	15 @ 600 V	TO-220-2	150	Active	ROHS3
DHG20I600PA	IXYS	600	20	2.32 @ 20 A	35	30 @ 600 V	TO-220-2	150	Active	ROHS3
DHG5I600PA	IXYS	600	5	2.2 @ 5 A	35	10 @ 600 V	TO-220-2	150	Active	ROHS3
DSEI25-06A	IXYS	600	25	1.31 @ 25 A	50	100 @ 600 V	TO-220-2	150	Active	ROHS3
LQA03TC600	Power Integrations	600	3	3.1 @ 3 A	13	20 @ 600 V	TO-220-2	150	Active	RoHS
LXA06T600	Power Integrations	600	6	2.94 @ 6 A	23	250 @ 600 V	TO-220-2	150	Active	RoHS
QH03TZ600	Power Integrations	600	3	3 @ 3 A	9.8	250 @ 600 V	TO-220-2	150	Active	RoHS
STTH506DTI	STMicroelectronics	600	5	3.6 @ 5 A	25	6 @ 600 V	TO-220-2	175	Active	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Direct 8 A Rating):

The PSDP0860S1_T0_00001 (Panjit International Inc.) and STTH806DIRG (STMicroelectronics) are direct functional equivalents to the FFP08D60L2. Both parts maintain the 600 V reverse voltage rating and 8 A average rectified current specification. Both are active production components with ROHS3 compliance. The STTH806DIRG offers an elevated maximum junction temperature of 175°C compared to the FFP08D60L2 specification of 150°C, providing enhanced thermal margin. The PSDP0860S1_T0_00001 maintains the 150°C junction temperature specification identical to the original part.

Secondary Substitutes (Higher Current Rating):

The DHG10I600PA, DHG20I600PA, and DSEI25-06A (all IXYS) provide current ratings exceeding the 8 A requirement while maintaining 600 V reverse voltage specification and TO-220-2 package compatibility. These parts are active production components with ROHS3 compliance. Selection of higher-rated parts is appropriate when circuit design permits increased current capacity or when design margin is required for thermal or reliability considerations.

Non-Substitutes (Lower Current Rating):

The DHG5I600PA, LQA03TC600, LXA06T600, QH03TZ600, and STTH506DTI do not constitute valid substitutes due to current ratings below the 8 A requirement of the FFP08D60L2. These parts are listed for reference only and are not suitable for direct replacement in applications requiring 8 A operation.

Compliance Considerations:

All recommended substitute parts maintain ROHS3 compliance or equivalent RoHS certification status, ensuring regulatory alignment with the original FFP08D60L2 specification. All parts are classified as active production components, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the PSDP0860S1_T0_00001 directly replace the FFP08D60L2?

A: Yes. The PSDP0860S1_T0_00001 maintains identical electrical specifications for voltage (600 V), current (8 A), and package type (TO-220-2). Both parts are fast recovery diodes with ROHS3 compliance. The PSDP0860S1_T0_00001 is an active production component, addressing the obsolescence status of the FFP08D60L2.

Q: What is the difference between TO-220-2 and TO-220AC packaging?

A: TO-220-2 and TO-220AC are compatible package designations for the same physical form factor. Both refer to a three-lead through-hole package with identical mechanical and thermal characteristics. Parts specified as TO-220AC are functionally equivalent to TO-220-2 packages for circuit application purposes.

Q: Can I use the DHG10I600PA (10 A) instead of the FFP08D60L2 (8 A)?

A: Yes. The DHG10I600PA maintains the 600 V reverse voltage specification and TO-220-2 package compatibility. The higher 10 A current rating provides design margin and is electrically compatible with circuits designed for 8 A operation. The DHG10I600PA is an active production component with ROHS3 compliance.

Q: Why are parts rated below 8 A listed in the comparison table?

A: Lower-rated parts are included for reference and informational completeness. These parts do not constitute valid substitutes for the FFP08D60L2 due to insufficient current capacity. Selection of undersized components would violate the electrical specification requirements of the original design.

Q: What is the significance of reverse recovery time (trr) in diode selection?

A: Reverse recovery time indicates the speed at which the diode transitions from conducting to blocking state. The FFP08D60L2 specifies 25 ns. Substitute parts with equal or lower trr values maintain or improve switching performance. Parts with higher trr values may introduce additional switching losses in high-frequency applications but remain functionally compatible for standard rectification circuits.

Q: Are all substitute parts RoHS compliant?

A: Yes. All recommended substitute parts maintain RoHS compliance status. The FFP08D60L2 is ROHS3 compliant. All substitute parts are either ROHS3 compliant or RoHS compliant, ensuring regulatory alignment for new designs and procurement.

Q: What is the operating temperature range consideration for substitution?

A: The FFP08D60L2 specifies a maximum junction temperature of 150°C. The STTH806DIRG offers 175°C maximum junction temperature, providing enhanced thermal margin. The PSDP0860S1_T0_00001 maintains the 150°C specification. Both are acceptable substitutes. Higher junction temperature ratings provide additional design margin in thermally constrained applications.

Q: Can I substitute a 25 A diode (DSEI25-06A) in a circuit designed for 8 A?

A: Yes. The DSEI25-06A maintains the 600 V reverse voltage and TO-220-2 package specifications. The higher current rating provides design margin and is electrically compatible with 8 A circuit requirements. The DSEI25-06A is an active production component with ROHS3 compliance. Higher-rated components do not degrade circuit performance in standard rectification applications.

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