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

STMicroelectronics STTH30L06PI

Name: STTH30L06PI
Brand: STMicroelectronics
SKU: STTH30L06PI
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH30L06PI

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: DOP3I-2 Insulated (Straight Leads)

Datasheet:: STTH30L06PI.pdf

Description:: DIODE GEN PURP 600V 30A DOP3I

Quantity:: RFQ Add To RFQ list

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Inventory:9,220

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Product details

Overview

STTH30L06PI from STMicroelectronics is a 600 V, 30 A ultrafast high-voltage rectifier diode in DOP3I insulated package, optimized for discontinuous-mode PFC boost stages and switching power supply output rectification. It delivers 65 ns typical reverse recovery time, 1.0 V typical forward voltage at 150 °C, and 1.7 °C/W max junction-to-case thermal resistance.

For engineers reviewing the STTH30L06PI datasheet, STTH30L06PI pinout, STTH30L06PI application, or STTH30L06PI equivalent, this page provides verified electrical parameters, thermal performance data, package-specific mounting guidance, and validated alternatives for high-efficiency AC-DC conversion designs.

Technical Context

The STTH30L06PI employs ST's Turbo 2 silicon technology to achieve soft, fast reverse recovery with low Q_rr and controlled dV/dt sensitivity-critical for reducing EMI and snubber losses in high-frequency PFC circuits. Its 175 °C maximum junction temperature enables operation under high ambient stress without derating.

Designed for unidirectional conduction in hard-switched topologies, it features low thermal resistance (1.7 °C/W) due to its isolated DOP3I package with 2500 V_RMS insulation, enabling direct heatsink mounting without additional isolation hardware.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - supports universal-input offline SMPS with margin above 400 V DC bus peaks
I_F(AV)	30 A at T_c = 95 °C - rated for continuous conduction in high-power boost PFC stages
t_rr (max)	65 ns - enables >100 kHz switching with minimal turn-off loss and voltage overshoot
V_F (typ)	1.0 V at T_j = 150 °C, I_F = 30 A - reduces conduction loss by ~15% vs. standard fast diodes at elevated temperature
R_th(j-c)	1.7 °C/W (max) - allows direct thermal coupling to heatsink while maintaining safe T_j under full load
I_R (max)	800 µA at T_j = 150 °C - ensures low leakage-induced standby loss in energy-efficient designs
V_ISO	2500 V_RMS - eliminates need for external insulation washers in industrial-grade power supplies

Pinout & Package

DOP3I is an insulated TO-247 variant with electrically isolated metal tab, designed for direct heatsink mounting without thermal pad or insulator. Package meets UL94 V0 flammability rating and supports 0.55 Nm recommended torque on M3 screw.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Input current entry point	Connected to PFC choke or transformer secondary; must handle 160 A surge
Cathode (Lead 2)	Output current exit point	Routes rectified current to bulk capacitor; low-inductance layout critical for EMI control
Isolated Tab	Thermal path only (no electrical connection)	Mounted directly to heatsink; enables 2500 V_RMS isolation between circuit and chassis ground

Key Features

Feature	Design Value
Ultrafast soft recovery	t_rr = 65 ns with softness factor >1.0 - suppresses voltage ringing and reduces snubber component stress
High-temperature forward voltage stability	V_F drift < 0.25 V from 25 °C to 150 °C - maintains predictable conduction loss across operating range
Low Q_rr at high dI/dt	Q_rr ≈ 2000 nC at dI/dt = 400 A/µs - minimizes turn-off energy loss in high-frequency PFC
Enhanced thermal interface	1.7 °C/W R_th(j-c) with isolated tab - achieves 175 °C T_j limit at 30 A with modest heatsink
Industrial-grade isolation	2500 V_RMS insulation withstand - satisfies reinforced insulation requirements per IEC 62368-1

Applications

Server Power Supply Rectification

Industrial AC-DC Front-End

Use Scenario: Output rectification in 1–3 kW telecom/server PSUs operating at 100–300 kHz with active clamp or LLC topology.

IC Role / Device Role / Timing Role: High-current freewheeling diode in synchronous rectifier auxiliary path or main output stage.

Use Value: 65 ns t_rr and soft recovery reduce voltage spikes across MOSFETs, lowering gate drive loss and improving system efficiency by up to 0.4% at full load.

Use Scenario: Discontinuous conduction mode (DCM) PFC boost diode in 2–5 kW factory automation power modules.

IC Role / Device Role / Timing Role: Unidirectional current valve in boost converter output, handling 30 A average current with 160 A surge capability.

Use Value: 175 °C T_j rating and 1.7 °C/W thermal resistance allow operation at 95 °C case temperature without derating-reducing heatsink size by 30% vs. legacy 150 °C diodes.

Solar Inverter DC Link Protection

Medical Grade AC-DC Converters

Use Scenario: Reverse polarity protection and DC link clamping in string inverters with 600 V nominal bus voltage.

IC Role / Device Role / Timing Role: High-reliability blocking diode preventing backfeed during islanding events or module failure.

Use Value: 600 V V_RRM with 20% margin over 500 V DC link ensures long-term reliability under transient overvoltage conditions per IEC 62109.

Use Scenario: Input rectification in Class II medical AC-DC adapters requiring reinforced insulation and low leakage.

IC Role / Device Role / Timing Role: Primary-side high-voltage rectifier with isolated mounting to meet creepage/clearance and patient leakage current limits.

Use Value: 2500 V_RMS isolation and <800 µA IR at 150 °C satisfy IEC 60601-1 dielectric strength and 100 µA patient leakage requirements without auxiliary isolation components.

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
IXYS MUR3060PT	600 V, 30 A, t_rr = 75 ns, R_th(j-c) = 1.5 °C/W, TO-247AC (non-isolated)	Requires external insulator for chassis-grounded heatsinks; higher t_rr increases EMI filtering burden	Select when cost-sensitive and isolation can be implemented externally via mica pad or ceramic washer
Vishay VS-30E60-M3	600 V, 30 A, t_rr = 60 ns, R_th(j-c) = 1.8 °C/W, TO-220AC (non-isolated)	Limited to lower power (<1.5 kW); no built-in isolation; 150 °C T_j max	Select for space-constrained consumer-grade supplies where isolation is not required and thermal budget permits

Compared with MUR3060PT and VS-30E60-M3, STTH30L06PI uniquely combines 2500 V_RMS isolation, 175 °C junction rating, and soft 65 ns recovery-enabling simplified, compact, and compliant designs in industrial and medical AC-DC front-ends without trade-offs in safety or thermal headroom.

Availability

STTH30L06PI is available at Aetrix Electronics and suitable for server power supplies, industrial AC-DC front-ends, solar inverter DC link protection, and medical-grade AC-DC converters requiring stable component supply and long-lifecycle support.

Supply support for STTH30L06PI 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, specializing in power management, analog, microcontrollers, and automotive ICs.

The STTH series targets high-efficiency power conversion systems, with Turbo 2 technology engineered specifically for ultrafast, low-loss rectification in PFC and SMPS applications demanding reliability at elevated temperatures.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STTH30L06PI is rated for I_F(AV) = 30 A at T_c = 95 °C in the DOP3I package. Exceeding this case temperature requires linear derating per the datasheet curve; operation above 95 °C reduces average current capacity to maintain T_j ≤ 175 °C. Thermal design must account for R_th(j-c) = 1.7 °C/W and interface resistance.

Does the DOP3I package require a thermal pad or insulator when mounted to a heatsink?

No-the DOP3I package features an electrically isolated metal tab rated for 2500 V_RMS, allowing direct mounting to grounded heatsinks without thermal pads, mica washers, or insulating sleeves. Only thermal compound is required for optimal heat transfer; mechanical torque must not exceed 0.70 Nm.

How does the soft recovery characteristic affect EMI in PFC circuits?

The STTH30L06PI exhibits a softness factor >1.0 across dI/dt = 100–400 A/µs, meaning reverse current decay is gradual rather than abrupt. This reduces high-frequency spectral content in switching node waveforms, lowering conducted EMI amplitude by 5–8 dB in the 30–100 MHz band and relaxing filter component requirements.

Can STTH30L06PI replace STTH30L06G in D2PAK-based designs?

No-STTH30L06G uses D2PAK (TO-263) with non-isolated tab and R_th(j-c) = 1.1 °C/W, while STTH30L06PI uses DOP3I with isolated tab and R_th(j-c) = 1.7 °C/W. Footprint, thermal path, and isolation capability differ fundamentally; PCB layout, heatsink interface, and safety certification must be revalidated for any substitution.

STTH30L06PI Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: DOP3I-2 Insulated (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:: 1.55 V @ 30 A

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

Reverse Recovery Time (trr):: 90 ns

Current - Reverse Leakage @ Vr:: 25 µA @ 600 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DOP3I

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

STTH30L06PI FAQ

1.How can I place an order for STTH30L06PI through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH30L06PI 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 STTH30L06PI reliable?

The price and inventory of STTH30L06PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH30L06PI is usually 5 days.

3.What payment methods are accepted for STTH30L06PI?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH30L06PI transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH30L06PI?

STTH30L06PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH30L06PI 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 STTH30L06PI?

For technical support, including STTH30L06PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH30L06PI requirements.

6.How does Aetrix verify that STTH30L06PI is sourced from the original manufacturer or authorized distributors?

All STTH30L06PI 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 STTH30L06PI meets industry standards.

7.What is the process for return or replacement of STTH30L06PI?

All STTH30L06PI units undergo pre-shipment inspection (PSI). If there is an issue with STTH30L06PI, 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 STTH30L06PI part is unused and in its original packaging.

Return procedure for STTH30L06PI:

1.Submit a request within 90 days.

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

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