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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

STMicroelectronics STTH2R06

Name: STTH2R06
Brand: STMicroelectronics
SKU: STTH2R06
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH2R06

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: STTH2R06.pdf

Description:: DIODE GEN PURP 600V 2A DO41

Quantity:: RFQ Add To RFQ list

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Inventory:8,189

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Product details

Overview

STTH2R06 from STMicroelectronics is a 600 V, 2 A ultrafast recovery rectifier diode using Turbo 2 planar Pt-doping technology, optimized for high-frequency switching in inverters, freewheeling paths, and polarity protection circuits. It delivers low conduction loss (VF(typ) = 1.0 V at 150 °C), negligible switching loss, and fast reverse recovery (trr(typ) = 35 ns at 25 °C).

For engineers reviewing the STTH2R06 datasheet, STTH2R06 pinout, STTH2R06 application, or STTH2R06 equivalent, key selection criteria include junction temperature rating (Tj = 175 °C), thermal resistance (Rth(j-l) = 20–35 °C/W depending on package), and dynamic performance under dIF/dt stress up to 500 A/µs.

Technical Context

The STTH2R06 employs platinum-doped silicon with controlled carrier lifetime to achieve ultrafast soft recovery-minimizing EMI and voltage overshoot during turn-off. Its design targets zero-recovery-charge trade-offs while maintaining low forward voltage across wide temperature range (−40 to +175 °C).

It operates reliably under repetitive surge conditions (IFSM = 30–40 A) and supports high-frequency PWM topologies due to consistent trr < 50 ns across IF = 0.5–2 A and dIF/dt = −50 A/µs, with peak reverse recovery current IRM ≤ 450 A at V_R = 400 V and T_j = 125 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - blocks up to 600 V repetitive reverse voltage without breakdown, suitable for 400 V DC bus applications with safety margin.
I_F(AV)	2 A - average forward current rating at specified thermal conditions (DO-41: TL = 70 °C; SMC: TL = 115 °C), defining continuous power handling.
V_F(typ)	1.0 V at T_j = 150 °C, I_F = 2 A - low conduction drop reduces power loss and heatsink requirements in high-efficiency SMPS.
t_rr(typ)	35 ns at T_j = 25 °C, I_F = 1 A, dIF/dt = −50 A/µs - enables operation above 100 kHz with minimal switching loss and ringing.
T_j max	175 °C - extended junction temperature allows reliable operation in compact, thermally constrained industrial environments.
R_th(j-l)	20 °C/W (SMC) - low junction-to-lead thermal resistance improves transient thermal response and power cycling robustness.
I_FSM	30 A (SMA/SMB/SMC), 40 A (DO-41), t_p = 10 ms - withstands short-circuit and startup surges in motor drives and UPS systems.

Pinout & Package

Packaged in DO-41, SMA, SMB, and SMC configurations. All variants are axial or surface-mount discrete diodes with cathode band marking. Thermal and mechanical dimensions per ST Doc ID 10757 Rev 4.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of load or switch node; must handle full I_F(AV) and I_FSM with low parasitic inductance layout.
Cathode	Forward current exit / reverse blocking terminal	Marked by band; connects to higher-potential rail; carries reverse leakage (<2 µA at 25 °C) and absorbs recovery charge Q_RR.

Key Features

Feature	Design Value
Ultrafast soft recovery	trr ≤ 50 ns with low IRM and Q_RR, reducing EMI and snubber losses in hard-switched converters.
High-temperature capability	Rated for continuous operation at T_j = 175 °C, enabling use in sealed enclosures or high-ambient industrial settings.
Low forward voltage	V_F = 1.0 V typ at 150 °C ensures <1.5 W conduction loss at 2 A, easing thermal management vs. standard FRD alternatives.
Multiple package options	DO-41, SMA, SMB, SMC footprints support through-hole prototyping and automated SMT assembly across power tiers.

Applications

Motor Drive Freewheeling

Solar Inverter DC Link Protection

Use Scenario: Clamping inductive kickback from IGBTs in 3-phase motor inverters operating at 10–20 kHz PWM frequency.

IC Role / Device Role / Timing Role: Ultrafast freewheeling diode providing low-loss current path during IGBT off-time; recovers before next switching cycle.

Use Value: Reduces switching losses by >30% vs. standard fast recovery diodes and eliminates need for external snubbers.

Use Scenario: Reverse polarity protection and DC link clamping in string-level solar inverters with 600 V DC input.

IC Role / Device Role / Timing Role: High-voltage blocking diode preventing backfeed during partial shading or fault conditions; handles 150 °C ambient.

Use Value: Enables compliance with UL 1741 anti-islanding requirements while maintaining >98.5% system efficiency at full load.

UPS Output Rectification

Industrial SMPS Input Stage

Use Scenario: Output stage rectification in online double-conversion UPS systems delivering clean 230 V AC with <5% THD.

IC Role / Device Role / Timing Role: Low-VF, high-reliability output diode conducting 2 A continuous load current with minimal ripple injection.

Use Value: Extends battery runtime by reducing conduction loss by 0.8 W per diode versus legacy 1N5408 equivalents.

Use Scenario: Input bridge rectification in 500 W industrial AC/DC power supplies operating in harsh factory environments.

IC Role / Device Role / Timing Role: High-T_j rectifier sustaining 175 °C junction temperature during sustained overload or poor airflow conditions.

Use Value: Eliminates derating below 85 °C ambient, simplifying thermal design and reducing heatsink mass by 40%.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2L06	Lower V_F (0.95 V typ at 150 °C), same V_RRM/I_F(AV), but slower trr (50 ns typ)	Better conduction efficiency, less suitable for >50 kHz topologies due to higher Q_RR	Prefer when thermal budget is tighter than switching speed requirement.
ES1J (Vishay)	Same V_RRM/I_F(AV), VF = 1.7 V typ at 25 °C, trr = 35 ns, but T_j max = 150 °C	Limited high-temp reliability; not rated for continuous 175 °C operation	Select only for cost-sensitive consumer-grade designs with ambient <70 °C.

Compared with STTH2L06 and ES1J, the STTH2R06 uniquely balances ultrafast recovery (35 ns), low VF (1.0 V at 150 °C), and full 175 °C junction rating-making it optimal for high-reliability industrial inverters where both efficiency and thermal headroom are critical.

Availability

STTH2R06 is available at Aetrix Electronics and suitable for motor drive freewheeling, solar inverter DC link protection, and industrial SMPS input stage applications requiring stable component supply across multiple package formats (DO-41, SMA, SMB, SMC).

Supply support for STTH2R06 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, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.

The STTH series targets high-efficiency power conversion, with the STTH2R06 specifically engineered for ultrafast switching in 600 V-class industrial and renewable energy systems where thermal resilience and dynamic performance are co-critical.

FAQ

What is the maximum allowable lead temperature during soldering for STTH2R06 in SMA package?

The STTH2R06A (SMA) has a maximum lead temperature of 260 °C for 10 seconds during reflow soldering, per JEDEC J-STD-020. Hand-soldering must not exceed 300 °C for ≤3 seconds per lead, and thermal profile must avoid exceeding T_j = 175 °C during assembly.

Does STTH2R06 meet RoHS and REACH requirements?

Yes, all STTH2R06 variants (DO-41, SMA, SMB, SMC) comply with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. They are offered in ECOPACK®2-compliant versions with halogen-free epoxy and lead-free terminations, verified per ST's published environmental status reports.

Can STTH2R06 replace STTH2R06U in an SMB footprint design?

Yes-STTH2R06U is the SMB-packaged variant of STTH2R06, sharing identical electrical specifications, thermal ratings, and pinout (anode/cathode). Mechanical compatibility is confirmed by ST's footprint drawings (Figure 14, Doc ID 10757 Rev 4), with no layout or soldering process changes required.

How does reverse recovery behavior change at elevated junction temperature?

At T_j = 125 °C, trr increases to ~45 ns (vs. 35 ns at 25 °C) and Q_RR rises ~2.5×, per Figure 7. However, VF drops to 1.0 V (typ), improving conduction efficiency. Designers must verify EMI and snubber sizing at worst-case T_j using ST's measured curves (Figures 4–6).

STTH2R06 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: DO-204AL, DO-41, Axial

Packaging:: Cut Tape (CT)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 600 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 1.7 V @ 2 A

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

Reverse Recovery Time (trr):: 50 ns

Current - Reverse Leakage @ Vr:: 2 µA @ 600 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-41

Operating Temperature - Junction:: -40°C ~ 175°C

STTH2R06 FAQ

1.How can I place an order for STTH2R06 through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH2R06 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 STTH2R06 reliable?

The price and inventory of STTH2R06 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH2R06 is usually 5 days.

3.What payment methods are accepted for STTH2R06?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH2R06 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH2R06?

STTH2R06 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH2R06 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 STTH2R06?

For technical support, including STTH2R06 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH2R06 requirements.

6.How does Aetrix verify that STTH2R06 is sourced from the original manufacturer or authorized distributors?

All STTH2R06 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 STTH2R06 meets industry standards.

7.What is the process for return or replacement of STTH2R06?

All STTH2R06 units undergo pre-shipment inspection (PSI). If there is an issue with STTH2R06, 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 STTH2R06 part is unused and in its original packaging.

Return procedure for STTH2R06:

1.Submit a request within 90 days.

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

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