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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

STMicroelectronics STTH10BC065CT

Name: STTH10BC065CT
Brand: STMicroelectronics
SKU: STTH10BC065CT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH10BC065CT

Manufacturer:: STMicroelectronics

Category:: Diode Arrays

Package:: TO-220-3

Datasheet:: STTH10BC065CT.pdf

Description:: DIODE ARRAY GP 650V 5A TO-220

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STTH10BC065CT from STMicroelectronics is a 650 V high-voltage dual common-cathode ultrafast rectifier diode optimized for BC2 topology in continuous conduction mode (CCM) PFC stages. It delivers 2 × 5 A average forward current, achieves up to 2.5% efficiency gain over standard 600 V PN diodes, supports switching up to 300 kHz, and enables 1 kW PFC designs compliant with 80+ requirements.

For engineers reviewing the STTH10BC065CT datasheet, STTH10BC065CT pinout, STTH10BC065CT application, or STTH10BC065CT equivalent, key selection criteria include reverse recovery charge minimization, BC2 topology compatibility, thermal performance in TO-220AB package, and PFC controller IC interoperability at 300 kHz operation.

Technical Context

This diode implements ST's patented BC2 topology optimization, where dual cathode configuration reduces reverse recovery losses during zero-current switching transitions in interleaved CCM PFC. Its low Q_rr and soft recovery behavior suppress voltage overshoot and EMI generation when paired with standard PFC controllers.

The device operates with V_RRM = 650 V and I_F(AV) = 2 × 5 A per anode, enabling high-power density 1 kW front-end designs without SiC-level cost. Thermal resistance R_th(j-c) is specified for TO-220AB mounting, supporting reliable conduction at junction temperatures up to 175 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	650 V - withstands peak line voltage plus margin in universal-input 85–265 V AC PFC stages
I_F(AV)	2 × 5 A - supports 1 kW interleaved CCM PFC with shared cathode thermal path
f_sw max	300 kHz - enables high-frequency PFC operation reducing inductor size and improving transient response
Efficiency gain	Up to +2.5% vs. standard 600 V ultrafast PN diodes - directly measurable in 1 kW reference designs
Topology support	BC2 (patented ST architecture) - requires dual-anode, common-cathode layout for optimal loss distribution
Package	TO-220AB - industry-standard thermally robust through-hole package with isolated tab

Pinout & Package

TO-220AB package with isolated metal tab (pin 3), featuring three terminals: two anodes (A1, A2) and one common cathode (K). Mounting requires electrically isolated heatsink interface due to tab isolation.

Pin/Terminal	Circuit Role	Design Meaning
A1	Anode 1	Connects to first PFC boost switch leg; shares cathode node with A2 for interleaved current balancing
A2	Anode 2	Connects to second PFC boost switch leg; enables phase-shifted conduction in BC2 topology
K	Common Cathode	Output node of dual-leg PFC stage; carries combined rectified current to bulk capacitor
Tab	Isolated Heat Sink Interface	Electrically isolated metal tab allows direct mechanical mounting without insulating washer

Key Features

Feature	Design Value
BC2 topology optimization	Patented dual-anode, common-cathode structure reduces total conduction + switching loss in interleaved CCM PFC
Low Q_rr and soft recovery	Minimizes voltage spikes and EMI during turn-off, easing filter design in high-frequency PFC
650 V blocking capability	Supports 400 V DC bus with 60% safety margin against transients in universal AC input systems
TO-220AB thermal performance	R_th(j-c) enables 5 A per anode operation at T_j ≤ 175 °C with standard heatsinking

Applications

Server Power Supply

Industrial AC-DC PSU

Use Scenario: 1 kW redundant power supply in data center rack units requiring 80+ Titanium compliance.

IC Role / Device Role / Timing Role: Dual-anode rectifier in interleaved BC2 PFC front-end, handling 5 A per phase at 200 kHz.

Use Value: Enables 2.5% higher full-load efficiency versus legacy PN diodes, reducing cooling demand and energy cost over system lifetime.

Use Scenario: Programmable logic controller (PLC) power module with wide-input 85–305 V AC range.

IC Role / Device Role / Timing Role: High-reliability rectifier in CCM PFC stage operating continuously at 60°C ambient with 10-year MTBF target.

Use Value: Stable soft recovery behavior prevents gate driver stress on PFC MOSFETs, extending controller lifetime under thermal cycling.

LED Streetlight Driver

Medical Imaging PSU

Use Scenario: Outdoor-rated 300 W LED driver with active PFC and high-temperature operation (T_a = 85 °C).

IC Role / Device Role / Timing Role: Primary rectifier in single-stage BC2 PFC + flyback topology, conducting 5 A average per anode.

Use Value: TO-220AB package provides sufficient thermal margin for sealed enclosure operation without forced air.

Use Scenario: CT scanner auxiliary power supply requiring low EMI and high reliability in safety-critical environment.

IC Role / Device Role / Timing Role: Low-noise rectifier in medical-grade PFC stage operating at 250 kHz with strict CISPR-11 Class B limits.

Use Value: Soft reverse recovery eliminates high-frequency ringing, simplifying EMI filter component count and board space.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage PFC rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH10R06D	Single-anode 600 V ultrafast diode; no BC2 optimization; higher Q_rr and harder recovery	Suitable for conventional single-phase CCM PFC, not BC2 interleaved topologies	Select only if redesigning away from BC2 architecture or requiring lower unit cost with relaxed efficiency targets
STTH12R06D	Higher I_F(AV) = 12 A (single anode); same 600 V rating; no dual-anode configuration	Used in higher-power single-leg PFC or non-interleaved 1.2 kW designs	Choose when scaling output power beyond 1 kW while retaining standard PFC controller compatibility

Compared with STTH10R06D and STTH12R06D, the STTH10BC065CT uniquely enables BC2 topology benefits-lower system-level losses, reduced EMI, and higher power density-without requiring SiC-level cost or gate drive complexity.

Availability

STTH10BC065CT is available at Aetrix Electronics and suitable for server power supplies, industrial AC-DC PSUs, LED streetlight drivers, and medical imaging power supplies requiring stable component supply and long-term manufacturability.

Supply support for STTH10BC065CT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The STTH series targets high-efficiency AC-DC conversion, with the BC2-optimized variants specifically developed to reduce system cost and complexity in next-generation PFC front-ends.

FAQ

What topology is the STTH10BC065CT specifically designed for?

The STTH10BC065CT is engineered exclusively for the BC2 topology-a patented STMicroelectronics interleaved continuous conduction mode PFC architecture using dual anodes and a common cathode. It is not optimized for standard single-phase or discontinuous mode PFC, and its performance advantages are realized only when implemented in BC2 layouts with compatible controllers.

Does the STTH10BC065CT have an isolated tab?

Yes, the STTH10BC065CT uses a TO-220AB package with an electrically isolated metal tab. This allows direct mounting to a grounded heatsink without requiring an insulating pad or washer, simplifying thermal design and improving long-term reliability in high-voltage PFC applications.

Can STTH10BC065CT replace standard 600 V ultrafast diodes in existing designs?

No-it is not a drop-in replacement. Its dual-anode configuration requires PCB layout changes to accommodate separate anode traces and shared cathode routing. Also, BC2-specific timing and current-sharing control must be implemented; substituting it into conventional PFC circuits yields no efficiency benefit and may cause instability.

What is the maximum recommended operating frequency for STTH10BC065CT?

The device is characterized and qualified for stable operation up to 300 kHz in CCM PFC applications. At this frequency, its low Q_rr and soft recovery maintain low switching losses and minimal voltage overshoot. Operation above 300 kHz is not validated and may degrade efficiency or reliability due to increased dynamic losses.

STTH10BC065CT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

Diode Configuration:: 1 Pair Common Cathode

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 650 V

Current - Average Rectified (Io) (per Diode):: 5A

Voltage - Forward (Vf) (Max) @ If:: 3.2 V @ 5 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 70 ns

Current - Reverse Leakage @ Vr:: 2.5 µA @ 650 V

Operating Temperature - Junction:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

STTH10BC065CT FAQ

1.How can I place an order for STTH10BC065CT through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH10BC065CT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STTH10BC065CT reliable?

The price and inventory of STTH10BC065CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH10BC065CT is usually 5 days.

3.What payment methods are accepted for STTH10BC065CT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH10BC065CT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH10BC065CT?

STTH10BC065CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH10BC065CT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STTH10BC065CT?

For technical support, including STTH10BC065CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH10BC065CT requirements.

6.How does Aetrix verify that STTH10BC065CT is sourced from the original manufacturer or authorized distributors?

All STTH10BC065CT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STTH10BC065CT meets industry standards.

7.What is the process for return or replacement of STTH10BC065CT?

All STTH10BC065CT units undergo pre-shipment inspection (PSI). If there is an issue with STTH10BC065CT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STTH10BC065CT part is unused and in its original packaging.

Return procedure for STTH10BC065CT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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