STTH3006W Equivalent & Substitute Parts

Part Overview

The STTH3006W is a general-purpose fast recovery rectifier diode manufactured by STMicroelectronics, rated for 600 V DC reverse voltage and 30 A average rectified current. The device is packaged in DO-247-2 (Straight Leads) configuration for through-hole mounting applications. This diode is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified when circuit designs require component sourcing alternatives due to inventory constraints, supply chain considerations, or design flexibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	30	A
Voltage - Forward (Vf) (Max) @ If	1.85 V @ 30 A	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Reverse Recovery Time (trr)	70	ns
Current - Reverse Leakage @ Vr	25	µA @ 600 V
Mounting Type	Through Hole	-
Package / Case	DO-247-2 (Straight Leads)	-
Operating Temperature - Junction (Max)	175	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the STTH3006W are classified based on electrical parameter equivalence and mechanical compatibility. The substitution logic is structured as follows:

Parametric Equivalent Classification: Parts that match all critical electrical parameters including 600 V reverse voltage rating, 30 A average rectified current, fast recovery speed classification (≤ 500ns), and through-hole mounting configuration.

Similar Classification: Parts that maintain the same voltage and current ratings with through-hole mounting but may exhibit variations in forward voltage drop, reverse recovery time, reverse leakage current, or package variant (DO-247 vs. TO-247 configurations).

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 30 A
Speed Classification: Fast Recovery
Mounting Type: Through Hole
Package Compatibility: DO-247 or TO-247 family

Parameter Comparison

Parameter	STTH3006W	STTH30R06W	APT30D60BG	DHG30I600HA	SDUR3060W
Manufacturer	STMicroelectronics	STMicroelectronics	Microchip Technology	IXYS	SMC Diode Solutions
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	30 A	30 A	30 A	30 A	30 A
Voltage - Forward (Vf) (Max) @ If	1.85 V @ 30 A	1.85 V @ 30 A	1.8 V @ 30 A	2.36 V @ 30 A	1.8 V @ 30 A
Reverse Recovery Time (trr)	70 ns	70 ns	85 ns	35 ns	50 ns
Current - Reverse Leakage @ Vr	25 µA @ 600 V	25 µA @ 600 V	250 µA @ 600 V	50 µA @ 600 V	250 µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-247-2 (Straight Leads)	DO-247-2 (Straight Leads)	TO-247-2	TO-247-2	TO-247-2
Operating Temperature - Junction (Max)	175°C	175°C	175°C	150°C	150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

STTH30R06W (STMicroelectronics): This part is a parametric equivalent to the STTH3006W, maintaining identical electrical specifications including 600 V reverse voltage, 30 A average rectified current, 1.85 V forward voltage drop at 30 A, and 70 ns reverse recovery time. Both devices feature DO-247-2 straight lead packaging and 175°C maximum junction temperature. The STTH30R06W is ROHS3 compliant and Active product status. This substitute provides direct functional equivalence with identical thermal and electrical performance characteristics.

APT30D60BG (Microchip Technology): This part maintains the 600 V and 30 A ratings with fast recovery speed classification. The APT30D60BG features a slightly lower forward voltage drop of 1.8 V at 30 A compared to the STTH3006W. The reverse recovery time is 85 ns, which is within the fast recovery classification. The package is TO-247-2, which is mechanically compatible with through-hole mounting. Reverse leakage current is specified at 250 µA at 600 V, which is higher than the STTH3006W. The device is ROHS3 compliant and Active product status with 175°C maximum junction temperature.

DHG30I600HA (IXYS): This part meets the 600 V and 30 A electrical requirements with fast recovery speed classification. The DHG30I600HA exhibits a higher forward voltage drop of 2.36 V at 30 A and a faster reverse recovery time of 35 ns. The package is TO-247-2 for through-hole mounting. Reverse leakage current is 50 µA at 600 V. The maximum junction temperature is 150°C, which is lower than the STTH3006W. The device is ROHS3 compliant and Active product status.

SDUR3060W (SMC Diode Solutions): This part maintains 600 V and 30 A ratings with fast recovery speed classification. The forward voltage drop is 1.8 V at 30 A, and the reverse recovery time is 50 ns. The package is TO-247AC for through-hole mounting. Reverse leakage current is 250 µA at 600 V. The maximum junction temperature is 150°C. The device is ROHS3 compliant and Active product status. REACH Status is listed as REACH Affected, which differs from the STTH3006W classification.

Frequently Asked Questions (FAQ)

Q: Can STTH30R06W be used as a direct replacement for STTH3006W?

A: Yes. The STTH30R06W is a parametric equivalent with identical electrical specifications (600 V, 30 A, 1.85 V forward voltage, 70 ns reverse recovery time) and identical DO-247-2 packaging. Both devices share the same 175°C maximum junction temperature and ROHS3 compliance status.

Q: What is the difference between DO-247 and TO-247 packaging?

A: DO-247 and TO-247 are both through-hole package families with similar lead configurations and pin spacing. The primary distinction is the standardization body and historical naming convention. Both package types are mechanically compatible for through-hole PCB mounting applications. The APT30D60BG, DHG30I600HA, and SDUR3060W utilize TO-247 variants, while STTH3006W and STTH30R06W use DO-247-2 packaging.

Q: Are there differences in forward voltage drop among the substitute parts?

A: Yes. The STTH3006W and STTH30R06W specify 1.85 V forward voltage drop at 30 A. The APT30D60BG and SDUR3060W specify 1.8 V at 30 A. The DHG30I600HA specifies 2.36 V at 30 A. These variations affect power dissipation and thermal management in the application circuit.

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

A: Reverse recovery time (trr) indicates the speed at which the diode transitions from forward conduction to reverse blocking. The STTH3006W specifies 70 ns. The DHG30I600HA has the fastest recovery at 35 ns, while the APT30D60BG has the slowest at 85 ns. All parts meet the fast recovery classification (≤ 500ns). Faster recovery times reduce switching losses in high-frequency applications.

Q: How does reverse leakage current affect part selection?

A: Reverse leakage current represents the small current flowing through the diode when reverse biased. The STTH3006W specifies 25 µA at 600 V, which is the lowest among the listed substitutes. The APT30D60BG and SDUR3060W specify 250 µA, while DHG30I600HA specifies 50 µA. Higher leakage currents increase standby power consumption and heat generation in blocking mode.

Q: Is the maximum junction temperature difference between parts significant?

A: The STTH3006W and STTH30R06W are rated to 175°C maximum junction temperature. The APT30D60BG is also rated to 175°C. The DHG30I600HA and SDUR3060W are rated to 150°C. This 25°C difference affects thermal margin in high-temperature operating environments. Applications requiring operation near 175°C should prioritize parts with the higher temperature rating.

Q: What does REACH Affected status mean for SDUR3060W?

A: REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) Affected status indicates the part may contain substances subject to REACH regulations. The STTH3006W is listed as REACH Unaffected. This distinction may be relevant for applications in regulated markets or industries with specific chemical compliance requirements.

Q: Can these parts be used interchangeably in all applications?

A: All listed parts meet the core electrical requirements of 600 V reverse voltage and 30 A average rectified current with fast recovery speed classification. However, differences in forward voltage drop, reverse recovery time, reverse leakage current, and maximum junction temperature may affect performance in specific applications. Circuit design parameters such as power dissipation, switching frequency, and thermal management must be evaluated for each substitute part.

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