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

STMicroelectronics STTH6006W

Name: STTH6006W
Brand: STMicroelectronics
SKU: STTH6006W
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH6006W

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: DO-247-2 (Straight Leads)

Datasheet:: STTH6006W.pdf

Description:: DIODE GEN PURP 600V 60A DO247

Quantity:: RFQ Add To RFQ list

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Inventory:1,099

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Product details

Overview

STTH6006W from STMicroelectronics is a 600 V, 60 A ultrafast high-voltage rectifier diode in DO-247 package, optimized for switching power supplies and industrial welding equipment. It delivers 1.1 V typical forward voltage at 150 °C, 60 ns maximum reverse recovery time, and 0.75 °C/W junction-to-case thermal resistance.

For engineers reviewing the STTH6006W datasheet, STTH6006W pinout, STTH6006W application, or STTH6006W equivalent, key selection criteria include conduction loss modeling (P = 1.07×IF(AV) + 0.006×IF²(RMS)), soft recovery behavior under high dIF/dt, and thermal derating above 95 °C case temperature.

Technical Context

This diode employs ST's Turbo 2 technology to achieve an optimized VF/trr trade-off-enabling lower switching losses in high-frequency hard-switched converters while maintaining low conduction losses. Its 175 °C maximum junction temperature and low Rth(j-c) support high-power density designs with minimal heatsink mass.

Dynamic performance is characterized under controlled dIF/dt conditions: trr remains ≤85 ns up to 500 A/µs at 150 °C, and softness factor (IRM/Irr) stays ≥0.4 across operating range-critical for EMI reduction in arc-welding inverters and UPS systems.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	600 V - supports 400 V DC bus designs with 1.5× safety margin against transient overvoltage
IF(AV)	60 A at Tc = 95 °C - defines continuous current capability with standard heatsink mounting
trr (max)	60 ns at 25 °C - enables operation up to ~1 MHz switching frequency before recovery-related losses dominate
VF (typ)	1.1 V at IF = 60 A, Tj = 150 °C - directly reduces conduction loss in high-temp industrial environments
Rth(j-c)	0.75 °C/W - allows precise junction temperature estimation from measured case temperature
IRM	14 A peak at dIF/dt = −100 A/µs, VR = 400 V, Tj = 150 °C - quantifies peak reverse current stress on snubber components
Qrr	~2500 nC at dIF/dt = 500 A/µs, Tj = 125 °C - determines energy dissipated in freewheeling path during turn-off

Pinout & Package

STTH6006W is a two-terminal axial device in DO-247 package: anode and cathode are identified by polarity marking on the body (cathode band). The package uses epoxy housing compliant with UL94 V0, with M6 screw-mount capability (0.80 Nm recommended torque).

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to input side of bridge or boost stage; must withstand full surge current (400 A, 10 ms)
Cathode	Forward current exit / reverse blocking terminal	Connected to output rail; carries full reverse voltage (600 V) and hosts heatsink interface

Key Features

Feature	Design Value
Ultrafast recovery	trr ≤ 60 ns ensures minimal tail current in hard-switched PFC and DC-DC stages
Low thermal resistance	Rth(j-c) = 0.75 °C/W enables direct bolt-down heatsinking without thermal interface pads in many cases
High junction temperature rating	Tj(max) = 175 °C supports operation in enclosed industrial enclosures without forced air
Soft recovery characteristic	S-factor ≥ 0.4 reduces EMI generation and voltage overshoot during commutation
ECOPACK® compliance	Lead-free second-level interconnect meets RoHS and JEDEC JESD97 marking requirements

Applications

Industrial Welding Inverters

Server PSU Rectification

Use Scenario: High-current DC link rectification in IGBT-based inverter welders operating at 20–50 kHz.

IC Role / Device Role / Timing Role: Output rectifier in full-bridge secondary synchronous or diode-based configuration.

Use Value: Low trr and soft recovery minimize snubber losses and RF noise during rapid current reversal in arc initiation.

Use Scenario: Primary-side boost PFC rectifier in 3 kW telecom/server PSUs with active clamp topology.

IC Role / Device Role / Timing Role: Fast-recovery boost diode handling 60 A average current at 100 kHz switching.

Use Value: 1.1 V VF at 150 °C reduces conduction loss by ~12% vs. standard 600 V FREDs at full load and elevated ambient.

Uninterruptible Power Supplies

Motor Drive DC Link

Use Scenario: Battery-charger input rectification in 10 kVA double-conversion UPS with bidirectional AC/DC stage.

IC Role / Device Role / Timing Role: High-reliability output diode in phase-shifted full-bridge rectifier.

Use Value: 400 A non-repetitive surge rating handles inrush into large bulk capacitors without degradation.

Use Scenario: DC link freewheeling diode in 7.5 kW HVAC inverter drives with 600 V bus.

IC Role / Device Role / Timing Role: Clamping and regeneration path for IGBT shoot-through protection and regenerative braking.

Use Value: 175 °C Tj rating allows sustained operation at 105 °C ambient with 20 K thermal margin under overload conditions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IXYS MUR6060CT	TO-247 package, dual-die common-cathode; trr = 65 ns (max), VF = 1.25 V @ 60 A, 150 °C	Requires dual-layout footprint; higher VF increases conduction loss by ~135 mW/A at full load	Preferred when dual-diode integration simplifies board layout and thermal symmetry is critical
Vishay VS-60EPU06L	DO-247 package, single die; trr = 75 ns (max), VF = 1.15 V @ 60 A, 150 °C, Rth(j-c) = 0.85 °C/W	Higher trr and thermal resistance reduce efficiency in high-frequency, high-power-density designs	Valid drop-in replacement where 15 °C lower thermal margin and 15 ns longer trr are acceptable

Compared with MUR6060CT and VS-60EPU06L, STTH6006W offers the lowest combined VF/trr product and best thermal resistance in DO-247 form factor-making it optimal for space-constrained, thermally aggressive welding and UPS applications where dynamic loss minimization is prioritized.

Availability

STTH6006W is available at Aetrix Electronics and suitable for industrial welding inverters, server power supply rectification, and uninterruptible power systems requiring stable component supply and long-term manufacturing continuity.

Supply support for STTH6006W 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, high-reliability power conversion in industrial-grade equipment-emphasizing ruggedness, thermal robustness, and dynamic performance over cost-optimized consumer-grade alternatives.

FAQ

What is the maximum allowable case temperature for continuous 60 A operation?

The datasheet specifies IF(AV) = 60 A at Tc = 95 °C. Exceeding this requires derating per Figure 1: at Tc = 105 °C, average current drops to ~54 A; at Tc = 115 °C, it falls to ~47 A. Thermal design must ensure case temperature remains ≤95 °C under worst-case ambient and airflow conditions.

Does STTH6006W support parallel operation for higher current handling?

Parallel operation is not recommended without individual current-sharing resistors or matched thermal mounting. The device exhibits positive temperature coefficient for VF, but manufacturing spread in trr and Qrr can cause dynamic current imbalance during switching transients-especially above 100 kHz.

Is the DO-247 package compatible with standard TO-247 heatsinks?

No-the DO-247 has a unique flange geometry (15.45–15.75 mm H, 10.90 mm G) and M6 mounting hole spacing. It requires heatsinks designed specifically for DO-247 or custom adapter plates; TO-247 clips or retainers will not align or secure properly.

How does the softness factor impact EMI in welding inverter designs?

A softness factor ≥0.4 means peak reverse recovery current (IRM) is no more than 2.5× the initial reverse current (Irr), suppressing high di/dt spikes that excite parasitic LC resonances. This directly lowers conducted EMI in the 30–300 MHz band and reduces snubber capacitor stress in high-dI/dt welder outputs.

STTH6006W Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: DO-247-2 (Straight Leads)

Packaging:: Tube

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 60A

Voltage - Forward (Vf) (Max) @ If:: 1.85 V @ 60 A

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

Reverse Recovery Time (trr):: 85 ns

Current - Reverse Leakage @ Vr:: 50 µA @ 600 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-247

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

STTH6006W FAQ

1.How can I place an order for STTH6006W through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH6006W 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 STTH6006W reliable?

The price and inventory of STTH6006W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH6006W is usually 5 days.

3.What payment methods are accepted for STTH6006W?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH6006W transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH6006W?

STTH6006W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH6006W 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 STTH6006W?

For technical support, including STTH6006W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH6006W requirements.

6.How does Aetrix verify that STTH6006W is sourced from the original manufacturer or authorized distributors?

All STTH6006W 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 STTH6006W meets industry standards.

7.What is the process for return or replacement of STTH6006W?

All STTH6006W units undergo pre-shipment inspection (PSI). If there is an issue with STTH6006W, 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 STTH6006W part is unused and in its original packaging.

Return procedure for STTH6006W:

1.Submit a request within 90 days.

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

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