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

STMicroelectronics STTH30S06W

Name: STTH30S06W
Brand: STMicroelectronics
SKU: STTH30S06W
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH30S06W

Manufacturer:: STMicroelectronics

Category:: Single Diodes

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

Datasheet:: STTH30S06W.pdf

Description:: DIODE GEN PURP 600V 30A DO247-2

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STTH30S06W from STMicroelectronics is a 600 V, 30 A ultrafast recovery rectifier diode in TO-247AC package, featuring 35 ns reverse recovery time, 2.1 V forward voltage at 30 A, and 150 °C maximum junction temperature. It serves as a primary output rectifier in high-frequency switch-mode power supplies for telecom and industrial AC/DC converters.

For engineers reviewing the STTH30S06W datasheet, STTH30S06W pinout, STTH30S06W application, or STTH30S06W equivalent, key selection criteria include reverse recovery performance under hard-switching conditions, thermal resistance in forced-air-cooled designs, SOA compliance at 100 kHz switching frequency, and replacement viability for legacy 600 V fast diodes in PFC and LLC resonant stages.

Technical Context

This device employs a platinum-doped silicon epitaxial structure to achieve controlled minority-carrier lifetime, enabling ultrafast recovery with low reverse recovery charge (Q_rr = 55 nC typical at I_F = 30 A, dI_r/dt = 100 A/µs). Its soft recovery characteristic minimizes EMI generation during turn-off.

The diode is optimized for operation in continuous conduction mode (CCM) and transition mode (TM) PFC boost stages, supporting peak repetitive reverse voltage (V_RRM) of 600 V and non-repetitive peak forward surge current (I_FSM) of 220 A at 10 ms half-sine wave.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Withstands peak reverse voltage in 400 V DC bus applications with 50 V margin.
I_F(AV)	30 A - Average forward current rating at T_c = 130 °C, suitable for 500–1000 W power stages.
t_rr	35 ns - Enables stable operation up to 200 kHz without excessive switching loss or ringing.
V_F @ 30 A	2.1 V - Contributes ~63 W conduction loss at full load; requires heatsinking per R_thJC = 0.55 °C/W.
Q_rr	55 nC - Low stored charge reduces diode-induced MOSFET turn-on loss in synchronous rectification topologies.
T_j max	150 °C - Supports operation in sealed industrial enclosures with limited airflow.

Pinout & Package

TO-247AC package: isolated tab, single-diode configuration with anode and cathode terminals only. Mounting hole centered on metal tab for mechanical fixation and thermal transfer to heatsink.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Pin 1)	Input terminal for forward current flow	Connected to switching node (e.g., MOSFET drain in boost PFC); must withstand dv/dt transients up to 500 V/µs.
Cathode (Pin 2)	Output terminal for forward current flow	Connected to output capacitor rail; carries full load current and must be routed with low-inductance layout.
Tab (Metal Case)	Thermal path and electrical isolation point	Electrically isolated from die; used for heatsink attachment; R_thJC = 0.55 °C/W measured from junction to case surface.

Key Features

Feature	Design Value
Ultrafast soft recovery	35 ns t_rr with softness factor >1 - Reduces voltage overshoot and EMI in hard-switched converters.
Low Q_rr	55 nC at rated conditions - Cuts MOSFET turn-on loss by up to 30% vs. standard fast diodes in bridgeless PFC.
High surge capability	220 A I_FSM (10 ms) - Survives inrush and line-dip events without degradation in 3-phase rectifier front-ends.
Optimized thermal design	R_thJC = 0.55 °C/W - Enables compact heatsink sizing in space-constrained 1U server PSUs.

Applications

Telecom Rectification

Industrial SMPS

Use Scenario: Primary-side rectification in 48 V / 1 kW telecom rectifiers operating at 100 kHz with active clamp forward topology.

IC Role / Device Role / Timing Role: Output rectifier handling continuous 20–30 A DC current with <100 ns switching transitions.

Use Value: 35 ns t_rr prevents cross-conduction loss in synchronous gate drivers and maintains >94% efficiency at full load.

Use Scenario: Boost diode in 3 kW industrial AC/DC front-end with interleaved dual-phase PFC.

IC Role / Device Role / Timing Role: High-current unidirectional conduction element subjected to 150 A peak surge during motor startup.

Use Value: 220 A I_FSM rating eliminates need for parallel diodes, reducing BOM count and layout complexity.

Solar Inverter DC Link

EV Charger Power Stage

Use Scenario: Freewheeling diode in 10 kW string inverter H-bridge output stage with 16 kHz PWM modulation.

IC Role / Device Role / Timing Role: Bidirectional energy recirculation path during dead-time intervals.

Use Value: Soft recovery behavior suppresses voltage spikes above 650 V, eliminating need for snubbers.

Use Scenario: Output rectifier in 22 kW liquid-cooled EV on-board charger using SiC MOSFETs and phase-shifted full-bridge.

IC Role / Device Role / Timing Role: High-efficiency secondary-side conduction element operating at 150 °C case temperature.

Use Value: 150 °C T_j max enables derating-free operation under sustained 30 A load in confined chassis space.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IXYS MUR3060CT	600 V, 30 A dual common-cathode configuration; t_rr = 45 ns; higher Q_rr (72 nC)	Requires separate layout for dual-channel use; less optimal for single-diode PFC stages	Select when dual-diode integration reduces board area in bridge configurations.
Vishay VS-30CPH06	600 V, 30 A; t_rr = 30 ns; lower V_F (1.95 V); TO-247AD package with insulated tab	Insulated tab simplifies mounting but adds 0.25 °C/W thermal penalty	Prefer where electrical isolation from heatsink is mandatory and 0.15 V lower V_F justifies cost premium.

Compared with MUR3060CT and VS-30CPH06, STTH30S06W offers best balance of soft recovery, thermal resistance, and cost for single-diode PFC and LLC rectification-especially where heatsink grounding is acceptable and layout space favors monolithic TO-247AC footprint.

Availability

STTH30S06W is available at Aetrix Electronics and suitable for telecom rectification, industrial SMPS, solar inverter DC link, and EV charger power stage applications requiring stable component supply and long-term production continuity.

Supply support for STTH30S06W 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, discrete devices, and MEMS sensors for industrial, automotive, and consumer markets.

STTH30S06W belongs to ST's high-voltage ultrafast diode product line, engineered specifically for high-efficiency, high-frequency power conversion in industrial and telecom infrastructure equipment.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STTH30S06W is rated for continuous operation with case temperature (T_c) up to 130 °C, corresponding to its 30 A average forward current rating. Exceeding this requires derating per the datasheet's I_F(AV) vs. T_c curve; at T_c = 100 °C, it supports up to 38 A average current with adequate heatsinking.

Does STTH30S06W have avalanche capability?

No, STTH30S06W is not rated for repetitive avalanche operation. Its absolute maximum rating specifies only non-repetitive peak reverse voltage (V_RRM = 600 V) and peak surge current (I_FSM). Avalanche energy testing is not characterized, and operation beyond V_RRM may cause irreversible failure.

Can STTH30S06W replace STTH30L06 in existing designs?

Yes, STTH30S06W can directly replace STTH30L06 (600 V, 30 A, t_rr = 50 ns) due to identical pinout, package, and voltage/current ratings. The 15 ns faster recovery improves efficiency in high-frequency designs but does not require layout changes or gate drive adjustments.

Is the TO-247AC tab electrically isolated?

No, the metal tab of the STTH30S06W in TO-247AC package is electrically connected to the cathode. This requires insulating hardware (e.g., shoulder washers, mica pads) when mounting to grounded heatsinks. For isolated-tab alternatives, consider TO-247AD variants like VS-30CPH06.

STTH30S06W Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

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

Packaging:: Tube

Product Status:: Obsolete

Technology:: Standard

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

Current - Average Rectified (Io):: 30A

Voltage - Forward (Vf) (Max) @ If:: 3.6 V @ 30 A

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

Reverse Recovery Time (trr):: 50 ns

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

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: -

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

STTH30S06W FAQ

1.How can I place an order for STTH30S06W through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH30S06W 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 STTH30S06W reliable?

The price and inventory of STTH30S06W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH30S06W is usually 5 days.

3.What payment methods are accepted for STTH30S06W?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH30S06W transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH30S06W?

STTH30S06W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH30S06W 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 STTH30S06W?

For technical support, including STTH30S06W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH30S06W requirements.

6.How does Aetrix verify that STTH30S06W is sourced from the original manufacturer or authorized distributors?

All STTH30S06W 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 STTH30S06W meets industry standards.

7.What is the process for return or replacement of STTH30S06W?

All STTH30S06W units undergo pre-shipment inspection (PSI). If there is an issue with STTH30S06W, 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 STTH30S06W part is unused and in its original packaging.

Return procedure for STTH30S06W:

1.Submit a request within 90 days.

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

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