Equivalent & Substitute Parts for 30CPF06

Part Overview

The 30CPF06 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 600 V DC reverse voltage and 30 A average rectified current in a TO-247AC through-hole package. This part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing design support and procurement continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with comparable performance characteristics within the same application category.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	30 A
Voltage - Forward (Vf) (Max) @ If	1.41 V @ 30 A
Reverse Recovery Time (trr)	160 ns
Current - Reverse Leakage @ Vr	100 µA @ 600 V
Speed Classification	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Mounting Type	Through Hole
Package / Case	TO-247-3
Operating Temperature - Junction	-40°C ~ 150°C
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility for rectifier diodes is determined by matching the following critical parameters: maximum reverse voltage rating, average rectified current capacity, forward voltage characteristics, reverse recovery time, package type, and mounting configuration. All substitute parts listed maintain the 600 V reverse voltage rating and TO-247-3 package footprint required for direct mechanical and electrical compatibility.

The 30CPF06 substitutes are grouped into two categories:

Parametric Equivalent (VS-30APF06-M3): This part maintains identical electrical specifications including 30 A current rating, 1.41 V forward voltage at 30 A, and 160 ns reverse recovery time. The primary distinction is product status (active versus obsolete) and RoHS compliance level.

Manufacturer-Recommended Substitute (STTH30R06CW): This STMicroelectronics part operates at the same 600 V reverse voltage and shares the TO-247-3 package. However, it is configured as a diode array with 1 Pair Common Cathode topology and provides 15 A per diode rather than 30 A single-diode operation. This configuration requires circuit-level evaluation for application compatibility.

Parameter Comparison

Parameter	30CPF06 (Main Part)	VS-30APF06-M3 (Parametric Equivalent)	STTH30R06CW (Manufacturer Substitute)
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	STMicroelectronics
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V
Current - Average Rectified (Io)	30 A	30 A	15 A (per diode)
Voltage - Forward (Vf) (Max) @ If	1.41 V @ 30 A	1.41 V @ 30 A	2.9 V @ 15 A
Reverse Recovery Time (trr)	160 ns	160 ns	50 ns
Current - Reverse Leakage @ Vr	100 µA @ 600 V	100 µA @ 600 V	60 µA @ 600 V
Speed Classification	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-247-3	TO-247-3	TO-247-3
Operating Temperature - Junction	-40°C ~ 150°C	-40°C ~ 150°C	-40°C to 175°C (Max)
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

The VS-30APF06-M3 is the appropriate selection when an exact electrical and mechanical equivalent is required. This part is manufactured by the same supplier (Vishay General Semiconductor - Diodes Division), maintains all electrical parameters of the 30CPF06, and is currently in active production status. The VS-30APF06-M3 achieves ROHS3 compliance, addressing regulatory requirements that the original 30CPF06 does not meet. Inventory availability is confirmed at 1,038 pieces.

For Alternative Sourcing (Functional Substitute):

The STTH30R06CW from STMicroelectronics provides a functional alternative when design flexibility permits circuit-level modifications. This part shares the 600 V reverse voltage rating and TO-247-3 package footprint. However, the diode array configuration (1 Pair Common Cathode) and reduced per-diode current rating (15 A versus 30 A) require verification against specific circuit requirements. The STTH30R06CW offers improved reverse recovery time (50 ns versus 160 ns) and lower reverse leakage current (60 µA versus 100 µA), with extended maximum junction temperature rating (175°C). This part is in active production with substantial inventory availability (267,820 pieces).

Compliance Considerations:

Both substitute parts achieve ROHS3 compliance and REACH Unaffected status, supporting modern procurement and environmental regulatory requirements. The 30CPF06 is RoHS non-compliant and obsolete, making transition to either substitute part advisable for new designs or long-term production continuity.

Frequently Asked Questions (FAQ)

Q: Can VS-30APF06-M3 be used as a direct drop-in replacement for 30CPF06?

A: Yes. The VS-30APF06-M3 maintains identical electrical specifications (600 V, 30 A, 1.41 V forward voltage, 160 ns reverse recovery time) and shares the same TO-247-3 package footprint. No circuit modifications are required. The primary differences are product status (active versus obsolete) and RoHS compliance level.

Q: What are the limitations of using STTH30R06CW as a substitute?

A: The STTH30R06CW is a diode array with 1 Pair Common Cathode configuration, not a single diode. Each diode element is rated for 15 A, not 30 A. Applications requiring 30 A continuous current from a single diode element cannot use this part without circuit redesign. The higher forward voltage (2.9 V @ 15 A versus 1.41 V @ 30 A) also affects power dissipation calculations.

Q: Are all substitute parts available in the same TO-247-3 package?

A: Yes. Both VS-30APF06-M3 and STTH30R06CW use the TO-247-3 package, ensuring mechanical compatibility with existing PCB layouts and thermal management solutions designed for the 30CPF06.

Q: What is the difference between RoHS non-compliant and ROHS3 compliant status?

A: RoHS non-compliant indicates the 30CPF06 does not meet Restriction of Hazardous Substances directives. ROHS3 compliant parts (VS-30APF06-M3 and STTH30R06CW) meet current RoHS 3 standards, which restrict specific hazardous materials and are required for many modern applications and markets.

Q: How do reverse recovery time differences affect circuit performance?

A: Reverse recovery time (trr) determines how quickly a diode transitions from conducting to blocking state. The 30CPF06 and VS-30APF06-M3 both specify 160 ns trr. The STTH30R06CW specifies 50 ns, indicating faster switching. In high-frequency switching applications, faster recovery reduces switching losses and electromagnetic interference, but circuit design must account for the different diode configuration.

Q: Which substitute part should be selected for new designs?

A: For new designs requiring 30 A single-diode operation at 600 V, the VS-30APF06-M3 is the appropriate selection. It provides identical electrical performance to the obsolete 30CPF06 while offering active production status and modern compliance certifications. The STTH30R06CW is suitable only when circuit architecture can accommodate diode array topology and reduced per-element current ratings.

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