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

STMicroelectronics STTH2L06RL

Name: STTH2L06RL
Brand: STMicroelectronics
SKU: STTH2L06RL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH2L06RL

Manufacturer:: STMicroelectronics

Category:: Single Diodes

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

Datasheet:: STTH2L06RL.pdf

Description:: DIODE GEN PURP 600V 2A DO41

Quantity:: RFQ Add To RFQ list

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Inventory:8,354

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Product details

Overview

STTH2L06RL from STMicroelectronics is a 600 V, 2 A ultrafast recovery rectifier diode using Turbo 2 planar platinum-doped technology, optimized for high-frequency SMPS and base-drive transistor circuits. It delivers low conduction losses (VF(typ) = 0.85 V at 150 °C), negligible switching losses, and fast reverse recovery (trr(max) = 60 ns), enabling efficient operation in inverters and freewheeling applications.

For engineers reviewing the STTH2L06RL datasheet, STTH2L06RL pinout, STTH2L06RL application, or STTH2L06RL equivalent, key selection criteria include its DO-41 axial package, 175 °C maximum junction temperature, 600 V repetitive peak reverse voltage, and suitability for polarity protection and high-frequency power conversion where low trr and thermal robustness are critical.

Technical Context

The STTH2L06RL is a single-die, planar-junction, Pt-doped silicon ultrafast rectifier with no integrated guard ring or soft-recovery enhancement. Its dynamic performance is characterized by tightly controlled reverse recovery charge (Qrr) and peak reverse recovery current (IRM), both strongly dependent on dIF/dt and junction temperature.

Thermal design relies on validated junction-to-lead resistance (Rth(j-l) = 35 °C/W for DO-41, L = 5 mm), and conduction loss modeling uses the empirical equation P = 0.89 × IF(AV) + 0.08 × IF²(RMS), confirming its efficiency advantage over standard fast recovery diodes in continuous conduction mode.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	600 V - supports input rectification in universal AC/DC front-ends up to 400 VAC RMS with margin.
IF(AV)	2 A at TL = 90 °C - defines continuous DC output current capability in TO-220-equivalent thermal environments.
trr (max)	60 ns - enables operation up to ~500 kHz in hard-switched converters without excessive switching loss or EMI.
VF (typ)	0.85 V at TJ = 150 °C, IF = 2 A - reduces conduction loss by ~15% vs. comparable 1.0 V VF diodes at elevated temperature.
Tj (max)	175 °C - allows derating headroom for high ambient or high-power-density PCB layouts without thermal shutdown.
Rth(j-l)	35 °C/W - quantifies thermal path efficiency from die to lead; used directly in junction temperature estimation under pulsed loads.

Pinout & Package

STTH2L06RL is supplied in the DO-41 axial leaded plastic package. The cathode is marked by a colored band on the body; the anode is the unmarked lead. Leads are tinned and suitable for wave or hand soldering per JEDEC J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry node	Connected to higher-potential side of circuit (e.g., transformer secondary or switch node); must withstand surge current up to 45 A (tp = 10 ms).
Cathode	Forward current exit node / reverse blocking terminal	Connected to load or ground reference; blocks 600 V reverse voltage and carries full forward current; marked by band.

Key Features

Feature	Design Value
Ultrafast recovery	trr(max) = 60 ns ensures minimal switching loss and reduced EMI generation in high-frequency SMPS.
Low forward voltage	VF(typ) = 0.85 V at 150 °C improves system efficiency by lowering I²R conduction loss under thermal stress.
High junction temperature rating	Tj(max) = 175 °C enables reliable operation in compact, sealed, or high-ambient industrial enclosures.
DO-41 mechanical robustness	UL 94 V0 epoxy body and 5 mm lead length support mechanical stability and flame-retardant compliance in safety-critical designs.

Applications

Switch-Mode Power Supply Rectification

Transistor Base Drive Protection

Use Scenario: Output rectification in 50–200 W offline flyback or forward converters operating at 65–130 kHz.

IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; clamps inductive kickback and recovers before next switching cycle.

Use Value: 60 ns trr prevents reverse recovery overlap with high-side switch turn-on, reducing cross-conduction loss and improving efficiency by ≥0.8% at full load.

Use Scenario: Clamping diode across BJT or IGBT base-emitter terminals in motor driver gate drive stages.

IC Role / Device Role / Timing Role: Polarity protection device limiting reverse base voltage to <1 V during negative transients.

Use Value: Low VF and fast trr prevent unintended turn-on during fast edge transitions, enhancing switching fidelity and preventing latch-up.

Inverter Freewheeling Path

Polarity Protection Circuit

Use Scenario: Bidirectional freewheeling path in half-bridge inverter legs driving inductive loads like solenoids or small motors.

IC Role / Device Role / Timing Role: Provides low-loss return path for inductive current when main switches are off; conducts only during dead time.

Use Value: 2 A average current rating and 35 A surge capability sustain repeated inductive energy dissipation without thermal runaway.

Use Scenario: Input polarity guard in 12–48 V DC-powered industrial sensors or field instruments connected via screw terminals.

IC Role / Device Role / Timing Role: Reverse-voltage blocking element placed in series with positive supply rail to prevent damage from accidental reverse connection.

Use Value: 600 V VRRM provides >10× margin over 48 V systems, while 2 µA IR at 25 °C ensures negligible standby leakage current.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R06RL	Same DO-41 package, identical VRRM (600 V), but IF(AV) = 2 A at TL = 75 °C (vs. 90 °C); VF slightly higher (0.92 V typ at 150 °C).	Lower thermal derating margin; less suitable for high-ambient or poorly ventilated enclosures.	Select STTH2R06RL only if board-level thermal management is constrained and junction temperature remains ≤150 °C.
UF2JCT	DO-41, 600 V, 2 A, trr(max) = 75 ns, VF = 0.95 V (typ @ 150 °C); manufactured by ON Semiconductor.	Higher trr and VF increase conduction and switching losses by ~12% in 100 kHz SMPS.	Choose UF2JCT only when STTH2L06RL is unavailable and system efficiency targets allow ≥1% efficiency penalty.

Compared with STTH2R06RL and UF2JCT, STTH2L06RL offers superior thermal margin (90 °C lead temp rating), lowest VF at high temperature, and fastest trr-making it optimal for space-constrained, high-efficiency, or high-ambient industrial power supplies where reliability under thermal stress is critical.

Availability

STTH2L06RL is available at Aetrix Electronics and suitable for switch-mode power supplies, transistor base drive protection circuits, inverter freewheeling paths, and polarity protection applications requiring stable component supply and long-term industrial lifecycle support.

Supply support for STTH2L06RL 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, digital, and mixed-signal ICs and discrete devices for industrial, automotive, and consumer markets.

The STTH2L06RL belongs to ST's Turbo 2 ultrafast diode product line, engineered specifically for high-frequency power conversion where low trr, low VF, and high Tj are essential for efficiency and reliability in compact SMPS and motor control designs.

FAQ

What is the maximum allowable lead temperature during soldering for STTH2L06RL?

The STTH2L06RL DO-41 package is rated for wave soldering per JEDEC J-STD-020. Peak lead temperature must not exceed 260 °C for ≤10 seconds. Preheating to 100–150 °C is recommended to minimize thermal shock. Hand soldering requires iron tip temperature ≤350 °C with contact time <3 seconds per lead.

Can STTH2L06RL replace a standard 1N4007 in a 12 V DC adapter?

No-STTH2L06RL is not a drop-in replacement for 1N4007. While both are DO-41 diodes, STTH2L06RL is an ultrafast rectifier (trr = 60 ns) optimized for high-frequency switching, whereas 1N4007 is a general-purpose rectifier (trr > 2 µs). Using STTH2L06RL in a 50/60 Hz linear supply offers no benefit and risks unnecessary cost and potential EMI due to faster edge rates.

How does the 35 °C/W Rth(j-l) value translate to real-world junction temperature rise?

With 2 A average forward current and VF = 0.85 V (at 150 °C), conduction power dissipation is ~1.7 W. Applying Rth(j-l) = 35 °C/W gives ΔTj-l ≈ 59.5 °C. If lead temperature is held at 90 °C (per spec), junction temperature reaches ~149.5 °C-well within the 175 °C limit and confirming safe operation under rated conditions.

Is STTH2L06RL compliant with RoHS and REACH regulations?

Yes-STTH2L06RL is manufactured in ST's ECOPACK®-compliant DO-41 package, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead finish is matte tin, and the epoxy meets UL 94 V0 flammability requirements. Full compliance documentation is available via ST's official product page and material declarations.

STTH2L06RL Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Technology:: Standard

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

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 2 A

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

Reverse Recovery Time (trr):: 85 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:: 175°C (Max)

STTH2L06RL FAQ

1.How can I place an order for STTH2L06RL through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH2L06RL 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 STTH2L06RL reliable?

The price and inventory of STTH2L06RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH2L06RL is usually 5 days.

3.What payment methods are accepted for STTH2L06RL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH2L06RL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH2L06RL?

STTH2L06RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH2L06RL 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 STTH2L06RL?

For technical support, including STTH2L06RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH2L06RL requirements.

6.How does Aetrix verify that STTH2L06RL is sourced from the original manufacturer or authorized distributors?

All STTH2L06RL 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 STTH2L06RL meets industry standards.

7.What is the process for return or replacement of STTH2L06RL?

All STTH2L06RL units undergo pre-shipment inspection (PSI). If there is an issue with STTH2L06RL, 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 STTH2L06RL part is unused and in its original packaging.

Return procedure for STTH2L06RL:

1.Submit a request within 90 days.

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

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