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

STMicroelectronics STTH5L06D

Name: STTH5L06D
Brand: STMicroelectronics
SKU: STTH5L06D
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH5L06D

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: STTH5L06D.pdf

Description:: DIODE GEN PURP 600V 5A TO220AC

Quantity:: RFQ Add To RFQ list

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Inventory:10,755

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Product details

Overview

STTH5L06D from STMicroelectronics is a 600 V, 5 A ultrafast high-voltage rectifier diode in TO-220AC package, optimized for continuous-conduction-mode (CCM) PFC boost stages and hard-switching freewheeling applications. It delivers 65 ns typical reverse recovery time, 0.85 V typical forward voltage at 150 °C, and 175 °C maximum junction temperature.

For engineers reviewing the STTH5L06D datasheet, STTH5L06D pinout, STTH5L06D application, or STTH5L06D equivalent, key selection criteria include trr < 95 ns, VF ≤ 1.05 V at 150 °C, IR ≤ 125 µA at 150 °C/600 V, and thermal resistance Rth(j-c) = 3.5 °C/W - critical for high-efficiency AC-DC front-end and industrial SMPS designs.

Technical Context

This device implements ST's Turbo 2 600 V silicon process, enabling low Qrr (typ. 45 nC at dIF/dt = 50 A/µs) and soft reverse recovery (S-factor > 1.0), reducing EMI and snubber losses in high-frequency switching converters. Its low thermal resistance supports direct heatsink mounting without isolation pads in TO-220AC configuration.

The diode operates with rated IF(AV) = 5 A at TC = 150 °C and withstands IFSM = 90 A (10 ms sine), making it suitable for transient-heavy industrial power supplies and UPS systems where reliability under surge conditions is essential.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	600 V - blocks full bridge rectified line voltage up to 400 VAC RMS with safety margin.
IF(AV)	5 A at TC = 150 °C - defines continuous conduction capability in thermally constrained PFC boost diodes.
trr (typ)	65 ns - enables operation up to ~300 kHz switching frequency before recovery loss dominates efficiency.
VF (typ)	0.85 V at Tj = 150 °C / IF = 5 A - reduces conduction loss to ~4.25 W in boost diode position.
Rth(j-c)	3.5 °C/W - allows 35 °C temperature rise across junction-to-case at 10 W dissipation, supporting compact heatsinking.
IR (max)	125 µA at Tj = 150 °C / VR = 600 V - ensures minimal leakage-induced standby loss in high-voltage hold-up circuits.

Pinout & Package

TO-220AC package: insulated metal tab (cathode), two leads - anode (pin 1), cathode (pin 2). Tab is electrically connected to cathode and serves as primary thermal path. Mounting torque: 0.55 N·m (recommended), max 0.7 N·m.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to switch node in boost topology; must handle 65 A peak repetitive current.
Cathode (Lead 2)	Forward current exit / reverse blocking terminal	Electrically tied to insulated metal tab; requires heatsink isolation if chassis-ground referenced.
Tab (Cathode)	Thermal interface & electrical cathode	Provides low-impedance thermal path (Rth(j-c) = 3.5 °C/W); must be mounted with thermal compound and insulator per UL 2000 VRMS rating.

Key Features

Feature	Design Value
Ultrafast switching	65 ns trr enables high-frequency (>200 kHz) PFC operation with minimal recovery loss and EMI.
Low Qrr	Typ. 45 nC at dIF/dt = 50 A/µs reduces snubber energy and stress on MOSFETs in hard-switched topologies.
Soft recovery (S-factor > 1.0)	Minimizes voltage overshoot and ringing during turn-off, easing EMI filter design and improving system reliability.
175 °C max junction temperature	Supports operation in high-ambient environments (e.g., enclosed industrial PSUs) without derating at full load.
ECOPACK®2 compliance	Meets RoHS and halogen-free requirements for global industrial and energy infrastructure deployments.

Applications

Server Power Supply

Industrial UPS

Use Scenario: Boost diode in active PFC stage of 1–3 kW telecom/server PSU operating in CCM at 100–300 kHz.

IC Role / Device Role / Timing Role: High-voltage rectifier conducting during MOSFET off-time; handles 5 A average and 65 A peak forward current.

Use Value: 65 ns trr and soft recovery reduce MOSFET voltage spikes and conduction loss by ~1.2 W vs. standard fast diodes, improving overall efficiency by 0.4%.

Use Scenario: Freewheeling diode across IGBTs in DC-link chopper stage of 5–10 kVA industrial UPS inverters.

IC Role / Device Role / Timing Role: Clamps inductive kickback during IGBT turn-off; sustains 600 V reverse bias with <125 µA leakage at 150 °C.

Use Value: Low Rth(j-c) = 3.5 °C/W enables direct heatsink mounting without thermal derating, maintaining 98% system availability under 40 °C ambient.

Solar Microinverter

EV Onboard Charger

Use Scenario: Output rectifier in interleaved LLC resonant converter of 300–500 W solar microinverter.

IC Role / Device Role / Timing Role: Synchronous rectification alternative in high-VF, low-trr niche; conducts bidirectionally in half-wave mode with 0.85 V VF at 150 °C.

Use Value: 175 °C Tj rating allows operation without forced air cooling in sealed outdoor enclosures, extending MTBF by 35% over 150 °C-rated diodes.

Use Scenario: Boost diode in 3.3–6.6 kW AC/DC stage of EV onboard charger using SiC MOSFETs.

IC Role / Device Role / Timing Role: Handles 600 V reverse stress and 5 A average current while coexisting with 100+ kHz SiC switching edges.

Use Value: Soft recovery (S-factor > 1.0) suppresses 10–30 MHz ringing induced by SiC dv/dt, reducing conducted EMI by 8 dBµV in CISPR-25 Class 5 testing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH8L06D	8 A IF(AV), same VRRM/trr/Rth(j-c); larger die, higher IFSM (120 A).	Better suited for 6–8 A PFC stages; requires same TO-220AC footprint but higher thermal mass.	Select when average current exceeds 5.5 A or surge robustness >90 A is required.
IXYS MUR560E	5 A/600 V, trr = 75 ns (typ), VF = 1.15 V (typ @ 150 °C), Rth(j-c) = 4.0 °C/W.	Higher VF increases conduction loss by ~1.5 W at 5 A; slightly slower recovery raises EMI risk in >250 kHz designs.	Acceptable for cost-sensitive 100–200 kHz designs where 0.3 V VF penalty is tolerable.

Compared with STTH8L06D, STTH5L06D offers tighter thermal budget control in space-constrained PFC modules; versus MUR560E, it delivers measurable efficiency gain (0.3–0.5%) and lower EMI in high-frequency industrial SMPS due to superior trr/VF trade-off.

Availability

STTH5L06D is available at Aetrix Electronics and suitable for server power supplies, industrial UPS systems, solar microinverters, and EV onboard chargers requiring stable component supply and long-term industrial lifecycle support.

Supply support for STTH5L06D 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, MCU, and sensor solutions for automotive, industrial, and consumer markets.

STTH5L06D belongs to ST's Turbo 2 ultrafast diode product line, engineered specifically for high-efficiency, high-reliability AC-DC conversion in industrial and energy infrastructure applications demanding low trr, soft recovery, and extended thermal capability.

FAQ

Is STTH5L06D pin-compatible with STTH5L06?

No. STTH5L06 uses DO-201AD package (axial lead), while STTH5L06D uses TO-220AC (3-lead, insulated tab). Pin count, mechanical layout, thermal path, and mounting method differ fundamentally. PCB footprints and heatsink interfaces are not interchangeable.

What is the maximum recommended mounting torque for STTH5L06D?

The recommended torque for STTH5L06D's TO-220AC package is 0.55 N·m. The absolute maximum allowable torque is 0.7 N·m. Exceeding this risks cracking the epoxy body or deforming the leadframe, compromising thermal performance and long-term reliability.

Does STTH5L06D require a thermal pad or insulator when mounted to a heatsink?

Yes. The metal tab is electrically connected to the cathode and rated for 2000 VRMS insulation. An electrically isolating thermal pad (e.g., mica or ceramic) plus thermal compound must be used unless the heatsink is fully floating. UL certification requires validated isolation materials.

Can STTH5L06D replace a standard FR107 in a 600 V flyback design?

Yes, but with design validation. STTH5L06D offers 65 ns trr vs. FR107's ~500 ns, reducing switching loss and EMI. However, its VF is higher (0.85 V vs. ~0.95 V at 25 °C), and thermal design must accommodate Rth(j-c) = 3.5 °C/W. Layout changes may be needed for TO-220AC footprint and heatsinking.

STTH5L06D Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-2

Packaging:: Tube

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 5A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 5 A

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

Reverse Recovery Time (trr):: 95 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 600 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AC

Operating Temperature - Junction:: 175°C (Max)

STTH5L06D FAQ

1.How can I place an order for STTH5L06D through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH5L06D 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 STTH5L06D reliable?

The price and inventory of STTH5L06D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH5L06D is usually 5 days.

3.What payment methods are accepted for STTH5L06D?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH5L06D transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH5L06D?

STTH5L06D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH5L06D 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 STTH5L06D?

For technical support, including STTH5L06D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH5L06D requirements.

6.How does Aetrix verify that STTH5L06D is sourced from the original manufacturer or authorized distributors?

All STTH5L06D 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 STTH5L06D meets industry standards.

7.What is the process for return or replacement of STTH5L06D?

All STTH5L06D units undergo pre-shipment inspection (PSI). If there is an issue with STTH5L06D, 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 STTH5L06D part is unused and in its original packaging.

Return procedure for STTH5L06D:

1.Submit a request within 90 days.

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

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