STTA2006P Equivalent & Substitute Parts

Part Overview

The STTA2006P is a general-purpose rectifier diode manufactured by STMicroelectronics, rated for 600 V DC reverse voltage and 20 A average rectified current. This device is packaged in SOD-93-2 through-hole configuration and belongs to the TURBOSWITCH™ series. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating packaging and mounting differences.

Substiute Parts

STTA2006P

STMicroelectronicsIn Stock: 2818STTA2006P Datasheet

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STTH30R06PI

STMicroelectronicsIn Stock: 1890STTH30R06PI Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the STTA2006P is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The substitute part must maintain a DC reverse voltage rating of 600 V or greater to ensure safe operation in the original application circuit.

Current Rating: The substitute part must support an average rectified current of 20 A or greater. Parts with higher current ratings (such as 30 A) are acceptable as they provide additional design margin without compromising circuit function.

Speed Classification: The substitute part must maintain fast recovery characteristics (≤ 500ns, > 200mA) to preserve switching performance and minimize reverse recovery losses.

Reverse Recovery Time: The substitute part must maintain a reverse recovery time specification compatible with the original circuit timing requirements.

Mounting Type: Both the main part and substitute must be through-hole mounted devices to ensure mechanical compatibility with existing PCB layouts.

Thermal Rating: The substitute part must support the operating temperature range of the application. Higher maximum junction temperatures provide additional thermal margin.

Compliance: The substitute part must maintain ROHS3 compliance and REACH unaffected status to satisfy regulatory requirements.

The STTH30R06PI meets all substitution criteria while offering improved electrical characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The STTH30R06PI is a qualified substitute for the STTA2006P based on the following engineering criteria:

Electrical Compatibility: The STTH30R06PI maintains the 600 V reverse voltage rating and exceeds the 20 A current requirement with a 30 A rating, providing additional design margin. Fast recovery characteristics and reverse recovery time specifications remain within acceptable parameters for circuit operation.

Regulatory Compliance: Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for new production and design implementations.

Product Status: The STTH30R06PI is classified as active, ensuring long-term availability and supply chain continuity. The STTA2006P obsolete status necessitates transition to an active alternative for ongoing production support.

Thermal Performance: The STTH30R06PI offers a higher maximum junction temperature rating (175°C versus 150°C), providing improved thermal margin in applications with elevated ambient or junction temperatures.

Package Consideration: The STTH30R06PI uses DOP3I-2 insulated straight-lead packaging instead of SOD-93-2. PCB layout modifications are required to accommodate the different package footprint and lead configuration. Mechanical verification of board space and lead spacing is necessary before implementation.

Frequently Asked Questions (FAQ)

Q: Can the STTH30R06PI directly replace the STTA2006P without PCB modifications?

A: Electrical substitution is valid; however, mechanical substitution requires PCB layout changes. The STTH30R06PI uses DOP3I-2 packaging with different lead spacing and footprint compared to the SOD-93-2 package of the STTA2006P. PCB redesign is necessary for proper mounting.

Q: What is the significance of the higher 30 A current rating on the STTH30R06PI?

A: The 30 A rating on the STTH30R06PI exceeds the 20 A requirement of the original application, providing additional current capacity and design margin. This allows the substitute to handle transient current spikes and thermal stress without exceeding rated specifications.

Q: How do the forward voltage characteristics compare between these devices?

A: The STTA2006P specifies 1.75 V forward voltage at 20 A, while the STTH30R06PI specifies 1.85 V at 30 A. At the original 20 A operating point, the STTH30R06PI forward voltage will be lower than the specified maximum, maintaining circuit performance within acceptable parameters.

Q: Are there thermal advantages to using the STTH30R06PI?

A: The STTH30R06PI has a maximum junction temperature rating of 175°C compared to 150°C for the STTA2006P. This 25°C improvement provides additional thermal headroom in applications operating at elevated temperatures or with limited heat dissipation.

Q: What does the lower reverse leakage current on the STTH30R06PI indicate?

A: The STTH30R06PI exhibits 25 µA reverse leakage at 600 V compared to 100 µA for the STTA2006P. Lower reverse leakage indicates improved device quality and reduced standby power consumption in the application circuit.

Q: Is the 10 ns difference in reverse recovery time significant?

A: The STTH30R06PI reverse recovery time of 70 ns compared to 60 ns for the STTA2006P represents a 17% increase. Both devices maintain fast recovery classification and remain within acceptable switching performance parameters for standard rectifier applications.

Q: What compliance certifications apply to both devices?

A: Both the STTA2006P and STTH30R06PI maintain ROHS3 compliance and REACH unaffected status. These certifications satisfy environmental and hazardous substance restrictions for commercial and industrial applications.