STTH30R06P Equivalent & Substitute Parts

Part Overview

The STTH30R06P is a general-purpose rectifier diode manufactured by STMicroelectronics, rated for 600 V DC reverse voltage and 30 A average rectified current in a SOD-93-2 through-hole package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. The diode features fast recovery characteristics with a reverse recovery time of 70 ns and operates at junction temperatures up to 175°C.

Substiute Parts

STTH30R06P

STMicroelectronicsIn Stock: 991STTH30R06P Datasheet

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ISL9R3060P2

onsemiIn Stock: 95335ISL9R3060P2 Datasheet

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RHRP1560

onsemiIn Stock: 159278RHRP1560 Datasheet

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RURP3060

onsemiIn Stock: 2168RURP3060 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the STTH30R06P is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 600 V
• Current - Average Rectified (Io): 30 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant

Secondary Compatibility Factors:

• Reverse Recovery Time (trr): Acceptable range 40–70 ns
• Voltage - Forward (Vf) (Max) @ If: Acceptable range 1.5–2.4 V @ 30 A
• Current - Reverse Leakage @ Vr: Acceptable range 25–250 µA @ 600 V
• Operating Temperature - Junction: Minimum 175°C

Package Consideration: The STTH30R06P uses SOD-93-2 packaging. Substitute parts may use alternative through-hole packages (TO-220-2, TO-220-2L) provided the electrical specifications remain within acceptable ranges. Package differences require mechanical board layout verification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: RURP3060

The RURP3060 is the preferred substitute for the STTH30R06P. Both components share identical voltage (600 V) and current (30 A) ratings, fast recovery speed classification, and maximum junction temperature (175°C). The RURP3060 maintains ROHS3 compliance and is currently in active product status, ensuring long-term availability and supply chain stability. The lower forward voltage (1.5 V @ 30 A) compared to the main part (1.85 V @ 30 A) results in reduced power dissipation. The primary design consideration is the package change from SOD-93-2 to TO-220-2, which requires board layout modification.

Secondary Substitute: ISL9R3060P2

The ISL9R3060P2 matches the voltage and current specifications of the STTH30R06P and operates within acceptable reverse recovery time parameters (45 ns). This component uses Avalanche technology and is classified as obsolete. The forward voltage is elevated at 2.4 V @ 30 A, resulting in higher power dissipation than the main part. The TO-220-2 package requires mechanical board layout changes. This substitute is suitable when forward voltage elevation is acceptable within circuit thermal design margins.

Limited Substitute: RHRP1560

The RHRP1560 is not a direct equivalent due to reduced current rating (15 A versus 30 A). This component is suitable only for applications where the circuit current requirement does not exceed 15 A. The voltage rating (600 V) and speed classification match the main part. This substitute is not recommended for designs requiring the full 30 A current capacity of the STTH30R06P.

Frequently Asked Questions (FAQ)

Q: Can the RURP3060 directly replace the STTH30R06P without circuit modification?

A: The RURP3060 is electrically compatible with the STTH30R06P for all critical parameters (voltage, current, speed, temperature). However, the package change from SOD-93-2 to TO-220-2 requires mechanical board layout modification. The through-hole mounting type remains unchanged, but pin spacing and footprint differ.

Q: What is the impact of forward voltage differences between substitute parts?

A: Forward voltage differences directly affect power dissipation in the diode. The RURP3060 (1.5 V @ 30 A) dissipates less power than the main part (1.85 V @ 30 A), while the ISL9R3060P2 (2.4 V @ 30 A) dissipates more. Power dissipation is calculated as P = Vf × Io. Higher dissipation requires thermal management verification in the circuit design.

Q: Why is the RHRP1560 listed as a substitute if it has a lower current rating?

A: The RHRP1560 is listed as a substitute for applications where the circuit current requirement is 15 A or less. It is not suitable for designs requiring the full 30 A capacity of the STTH30R06P. Current rating must be verified against actual circuit requirements before selection.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (ISL9R3060P2, RHRP1560, RURP3060) are ROHS3 compliant, matching the compliance status of the main part STTH30R06P.

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

A: Reverse recovery time (trr) affects switching speed and electromagnetic interference characteristics. The STTH30R06P has trr of 70 ns. Substitute parts with lower trr values (ISL9R3060P2 at 45 ns, RHRP1560 at 40 ns, RURP3060 at 60 ns) provide faster switching response. Lower trr values reduce switching losses and EMI but do not create incompatibility with the main part.

Q: Is the RURP3060 recommended over the ISL9R3060P2?

A: The RURP3060 is preferred due to active product status, ensuring long-term availability and supply chain continuity. The ISL9R3060P2 is obsolete, similar to the main part. Both are electrically compatible, but the RURP3060 provides superior supply chain reliability.

Q: Can reverse leakage current differences affect circuit performance?

A: Reverse leakage current differences (STTH30R06P at 25 µA, ISL9R3060P2 at 100 µA, RHRP1560 at 100 µA, RURP3060 at 250 µA) are within acceptable ranges for general-purpose rectifier applications. Higher leakage may affect high-impedance circuits or precision analog applications but is not significant for standard power rectification.

Q: What package considerations apply when selecting a substitute?

A: The STTH30R06P uses SOD-93-2 packaging. All listed substitutes use TO-220-2 or TO-220-2L packages. These packages have different physical dimensions and pin spacing. Board layout modification is required, including footprint redesign and thermal management considerations for the larger TO-220 package.