STTH15AC06CT Equivalent & Substitute Parts

Part Overview

The STTH15AC06CT is a fast recovery diode array manufactured by STMicroelectronics, configured as a 1 Pair Common Cathode rectifier with 600 V reverse voltage rating and 7.5 A average rectified current per diode. This component is packaged in a TO-220-3 through-hole configuration and is currently in active production status with 3031 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement in circuit applications. Substitutes must maintain compatibility across voltage ratings, current capacity, package type, and mounting configuration while meeting the same functional requirements.

Substiute Parts

STTH15AC06CT

STMicroelectronicsIn Stock: 3069STTH15AC06CT Datasheet

Current PartRFQ

LXA16T600C

Power IntegrationsIn Stock: 5153LXA16T600C Datasheet

SimilarRFQ

SDUR1560CT

SMC Diode SolutionsIn Stock: 2090SDUR1560CT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the STTH15AC06CT are qualified based on the following critical parameters:

Mandatory Compatibility Criteria:

• Voltage - DC Reverse (Vr) (Max): 600 V minimum
• Diode Configuration: 1 Pair Common Cathode
• Package / Case: TO-220-3
• Mounting Type: Through Hole
• Current - Average Rectified (Io) (per Diode): Equal to or greater than 7.5 A

Acceptable Variation Parameters:

• Voltage - Forward (Vf) (Max): May vary within circuit design tolerances
• Reverse Recovery Time (trr): May vary; faster recovery acceptable
• Current - Reverse Leakage @ Vr: May vary; lower leakage acceptable
• Technology: Standard or Schottky acceptable if electrical parameters met
• Operating Temperature Range: May extend beyond specified range

Two substitute parts meet these criteria: the LXA16T600C (Power Integrations) and the SDUR1560CT (SMC Diode Solutions). Both maintain the 600 V reverse voltage rating, 1 Pair Common Cathode configuration, TO-220-3 package, and through-hole mounting. Both support current ratings equal to or exceeding 7.5 A.

Parameter Comparison

Engineering Selection Recommendations

STTH15AC06CT (Primary Part)

The STTH15AC06CT remains the primary selection for applications requiring standard fast recovery diode technology with 600 V reverse voltage and 7.5 A current rating. This part is ROHS3 compliant, REACH unaffected, and maintains active production status with substantial inventory availability (3031 units). The operating temperature range of -40°C to 150°C accommodates standard industrial applications.

LXA16T600C (Substitute - Schottky Technology)

The LXA16T600C is a qualified substitute when Schottky diode characteristics are acceptable or beneficial. This part offers faster reverse recovery time (21.5 ns versus 50 ns), which reduces switching losses in high-frequency applications. The higher current rating (8 A) provides additional margin. However, the forward voltage drop is higher (2.94 V @ 8 A versus 1.9 V @ 7.5 A), resulting in increased power dissipation. Reverse leakage current is significantly higher (250 µA @ 600 V versus 1 µA @ 600 V). This part is RoHS compliant and REACH unaffected. The maximum operating temperature is specified as 150°C without a minimum temperature specification.

SDUR1560CT (Substitute - Standard Technology)

The SDUR1560CT is a qualified substitute offering standard fast recovery diode technology matching the STTH15AC06CT. This part provides the lowest forward voltage drop (1.5 V @ 8 A) among the three options, resulting in lower power dissipation. Reverse leakage current (10 µA @ 600 V) is moderate. The operating temperature range extends to -55°C minimum, providing broader low-temperature capability. This part is ROHS3 compliant. REACH status is listed as affected, requiring compliance verification for specific applications. Inventory availability is 2080 units.

Frequently Asked Questions (FAQ)

Q: Can the LXA16T600C replace the STTH15AC06CT in all applications?

A: The LXA16T600C is electrically compatible as a substitute based on voltage rating, current capacity, and package configuration. However, the Schottky technology introduces differences in forward voltage drop and reverse leakage current. Applications sensitive to power dissipation or leakage current must evaluate these parameter differences. The faster reverse recovery time (21.5 ns) is beneficial for high-frequency switching applications.

Q: What is the primary difference between the SDUR1560CT and STTH15AC06CT?

A: Both parts use standard fast recovery diode technology and share identical voltage ratings, configuration, and package type. The SDUR1560CT offers lower forward voltage drop (1.5 V @ 8 A versus 1.9 V @ 7.5 A), reducing power dissipation. The SDUR1560CT extends the minimum operating temperature to -55°C. The STTH15AC06CT provides lower reverse leakage current (1 µA @ 600 V versus 10 µA @ 600 V).

Q: Are all three parts physically interchangeable?

A: Yes. All three parts share the TO-220-3 package configuration and through-hole mounting type. Physical installation is identical. Electrical performance differences require circuit-level evaluation based on application requirements.

Q: What is the significance of the 1 Pair Common Cathode configuration?

A: This configuration indicates the diode array contains two diodes with a shared cathode terminal. The TO-220-3 package provides three leads: two anodes and one common cathode. This configuration is standard for bridge rectifier applications and dual-diode circuits. All substitute parts maintain this identical configuration.

Q: How do forward voltage drop differences affect circuit performance?

A: Forward voltage drop directly impacts power dissipation and heat generation. The SDUR1560CT (1.5 V @ 8 A) dissipates less power than the STTH15AC06CT (1.9 V @ 7.5 A), which dissipates less than the LXA16T600C (2.94 V @ 8 A). Applications with thermal constraints or high-current operation benefit from lower forward voltage drop. Conversely, applications with minimal current or thermal headroom may tolerate higher forward voltage drop.

Q: What does reverse recovery time indicate?

A: Reverse recovery time (trr) measures the interval required for a diode to transition from forward conduction to reverse blocking when the applied voltage reverses. Faster recovery time reduces switching losses and electromagnetic interference in high-frequency applications. The LXA16T600C (21.5 ns) recovers faster than both the STTH15AC06CT and SDUR1560CT (50 ns each).

Q: Are there compliance differences between the three parts?

A: All three parts are RoHS compliant. The STTH15AC06CT and SDUR1560CT are ROHS3 compliant. The LXA16T600C is RoHS compliant without ROHS3 specification. All three are REACH unaffected or affected; the SDUR1560CT lists REACH status as affected, requiring compliance verification for specific regulatory jurisdictions.

Q: What inventory considerations apply to these substitutes?

A: The STTH15AC06CT has 3031 units in stock, the LXA16T600C has 5100 units, and the SDUR1560CT has 2080 units. Inventory availability may influence selection when lead time or supply continuity is a consideration.