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

STMicroelectronics STTH30RQ06D

Name: STTH30RQ06D
Brand: STMicroelectronics
SKU: STTH30RQ06D
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH30RQ06D

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: STTH30RQ06D.pdf

Description:: DIODE GEN PURP 600V 30A TO220AC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STTH30RQ06D from STMicroelectronics is a 600 V, 30 A ultrafast high-voltage rectifier diode in TO-220AC package, designed for secondary-side rectification in LLC full-bridge topologies and PFC stages. It delivers 1.45 V typical forward voltage at 15 A/150 °C, 30 ns maximum reverse recovery time, and operates up to 175 °C junction temperature-enabling high-efficiency, compact AC/DC power supplies for industrial UPS and EV charging stations.

For engineers reviewing the STTH30RQ06D datasheet, STTH30RQ06D pinout, STTH30RQ06D application, or STTH30RQ06D equivalent, key selection criteria include its soft-recovery behavior (S-factor >1.0), low thermal resistance (0.70 °C/W j-c), 200 A surge rating, and compliance with ECOPACK2 environmental standards-critical for high-reliability, thermally constrained rectifier designs.

Technical Context

This ultrafast rectifier employs optimized silicon epitaxy and lifetime control to achieve soft reverse recovery (typical S-factor >1.2 at 125 °C) and low Q_RR (485 nC), minimizing switching losses and EMI in high-frequency resonant converters. Its 600 V V_RRM rating supports 400 V DC bus applications with margin for transient overvoltage.

The device is characterized for operation across -65 °C to +175 °C ambient, with thermal performance validated for conduction-cooled mounting on heatsinks. The TO-220AC package provides 200 A non-repetitive surge current capability (10 ms sinusoidal) and mechanical robustness via 0.55 N·m recommended mounting torque.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Withstands repetitive reverse voltage up to 600 V, enabling use in 400 V DC-link systems with safety margin against transients.
I_F(AV)	30 A at T_C = 103 °C - Continuous average forward current rating under standard heatsink conditions.
V_F (typ.)	1.45 V at I_F = 15 A, T_j = 150 °C - Low conduction loss enables high efficiency in high-current rectification paths.
t_rr (max.)	30 ns at I_F = 0.5 A, I_R = 1 A, I_rr = 0.25 A - Ultrafast recovery minimizes turn-off losses and dv/dt-induced ringing in MHz-range LLC converters.
R_th(j-c)	0.70 °C/W - Low junction-to-case thermal resistance allows effective heat transfer to heatsink, supporting stable 175 °C operation.
T_j(max)	175 °C - High-temperature capability extends lifetime and reliability in thermally demanding industrial environments.
I_FSM	200 A (10 ms sinusoidal) - Robust surge handling for inrush current and fault conditions in UPS and motor drives.

Pinout & Package

TO-220AC package: single-anode, single-cathode, isolated metal tab (anode-connected). Mounting hole centered on tab; cathode lead is pin 1 (flat side of package body).

Pin/Terminal	Circuit Role	Design Meaning
Anode (Tab)	Forward current input / Heat sink interface	Electrically active anode terminal; must be electrically isolated from heatsink unless system design requires common-anode topology.
Cathode (Lead 1)	Forward current output / Output node	Primary current exit path; connects to output rail or transformer secondary center-tap in full-wave configurations.

Key Features

Feature	Design Value
Ultrafast soft recovery	S-factor >1.2 at 125 °C ensures low EMI and reduced snubber stress in high-frequency resonant converters.
High junction temperature rating	175 °C max T_j enables reliable operation in enclosed, high-ambient environments like EV chargers and industrial UPS.
Low thermal resistance	0.70 °C/W j-c allows 30 A continuous conduction with modest heatsinking-reducing BOM cost and footprint.
ECOPACK2 compliance	Meets RoHS and halogen-free requirements without compromising thermal or electrical performance.
High creepage-ready variants	Available in D²PAK HV (5.38 mm anode–cathode creepage) for reinforced insulation in safety-critical AC/DC designs.

Applications

LLC Resonant Converter Secondary Rectification

Active PFC Boost Diode

Use Scenario: High-efficiency 1–3 kW server PSU or telecom rectifier using asymmetric half-bridge LLC topology.

IC Role / Device Role / Timing Role: Ultrafast anode-cathode rectifier conducting during resonant tank zero-voltage switching intervals.

Use Value: 30 ns t_rr and soft recovery minimize reverse recovery spikes, enabling >96% efficiency at 300–500 kHz switching frequency.

Use Scenario: 3.3 kW single-phase industrial PFC front-end operating at 70 kHz with 400 V DC bus.

IC Role / Device Role / Timing Role: Fast-recovery boost diode handling continuous 30 A average current in discontinuous/continuous conduction mode.

Use Value: 1.45 V V_F at 150 °C reduces conduction loss by ~12% vs. standard fast diodes, lowering heatsink requirements.

Uninterruptible Power Supply (UPS) Output Stage

EV Charging Station DC-DC Isolation Stage

Use Scenario: Online double-conversion UPS delivering clean 230 V AC output with battery backup and bidirectional energy flow.

IC Role / Device Role / Timing Role: Bidirectional freewheeling/clamping diode in H-bridge inverter output stage.

Use Value: 200 A I_FSM withstands short-circuit currents during grid-fail transitions; 175 °C rating ensures stability during extended battery discharge.

Use Scenario: 11 kW liquid-cooled DC fast charger converting 400–800 V DC input to 200–1000 V DC output via dual-active-bridge isolation.

IC Role / Device Role / Timing Role: High-voltage secondary-side synchronous rectifier replacement in isolated DC-DC stage.

Use Value: 600 V V_RRM supports 800 V nominal bus with 20% overvoltage margin; DO-247 LL variant offers 0.90 °C/W R_th(j-c) for high-power density.

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 MUR3060CT	600 V, 30 A dual common-cathode TO-220AB; t_rr = 35 ns (max); V_F = 1.75 V (typ. @ 15 A, 125 °C)	Requires dual-diode layout; higher V_F increases conduction loss in high-duty-cycle PFC.	Select when dual-diode configuration is required and soft recovery is secondary to cost.
Vishay V30100CI	100 V lower V_RRM (500 V); same I_F(AV), t_rr = 30 ns; R_th(j-c) = 0.85 °C/W	Not suitable for 400 V DC bus with transient margin; limited to 350 V nominal systems.	Choose only for lower-voltage, cost-sensitive industrial SMPS where 500 V rating suffices.

Compared with MUR3060CT and V30100CI, STTH30RQ06D offers superior thermal performance (0.70 °C/W), softer recovery (S-factor >1.2), and full 600 V margin-making it optimal for high-reliability, high-frequency, high-temperature rectification where efficiency and EMI are critical.

Availability

STTH30RQ06D is available at Aetrix Electronics and suitable for industrial UPS, EV charging station power modules, and high-density LLC resonant converters requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for STTH30RQ06D 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 microcontrollers, power devices, analog ICs, and sensors for automotive, industrial, and consumer markets.

The STTH series targets high-efficiency power conversion, with STTH30RQ06D specifically engineered for ultrafast, high-voltage rectification in resonant and PFC topologies demanding low loss and high thermal resilience.

FAQ

What is the maximum recommended mounting torque for the STTH30RQ06D TO-220AC package?

The recommended torque value for the STTH30RQ06D TO-220AC mounting screw is 0.55 N·m, with a maximum allowable torque of 0.70 N·m. Exceeding this may deform the case or compromise thermal interface integrity. Proper torque ensures optimal thermal contact between the anode tab and heatsink while maintaining mechanical reliability over thermal cycling.

Does STTH30RQ06D support surface-mount assembly?

No-STTH30RQ06D is exclusively offered in through-hole TO-220AC packaging and is not compatible with reflow or wave soldering. It requires mechanical mounting to a heatsink via its insulated metal tab. For surface-mount alternatives, consider STTH30RQ06G (D²PAK) or STTH30RQ06G2 (D²PAK HV), both available in tape-and-reel format.

How does the soft recovery behavior of STTH30RQ06D reduce EMI in LLC converters?

Soft recovery (S-factor >1.2) limits the rate of diode current collapse (di/dt) during turn-off, suppressing high-frequency ringing and voltage overshoot caused by parasitic inductance. This directly lowers conducted and radiated EMI, reducing filter component count and easing EMC certification-especially critical in high-power, high-frequency LLC topologies above 300 kHz.

Can STTH30RQ06D replace older STTH30L06 in existing designs?

Yes-STTH30RQ06D is a direct drop-in replacement for STTH30L06 in TO-220AC form factor, offering identical pinout, package dimensions, and thermal mounting. It improves upon the L-series with lower V_F (1.45 V vs. 1.65 V typ.), faster t_rr (30 ns vs. 35 ns), and enhanced softness-yielding measurable efficiency gains without layout changes.

STTH30RQ06D Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: ECOPACK®

Package/Case:: TO-220-2

Packaging:: Tube

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 30A

Voltage - Forward (Vf) (Max) @ If:: 2.95 V @ 30 A

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

Reverse Recovery Time (trr):: 55 ns

Current - Reverse Leakage @ Vr:: 40 µA @ 600 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AC

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

STTH30RQ06D FAQ

1.How can I place an order for STTH30RQ06D through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH30RQ06D 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 STTH30RQ06D reliable?

The price and inventory of STTH30RQ06D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH30RQ06D is usually 5 days.

3.What payment methods are accepted for STTH30RQ06D?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH30RQ06D transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH30RQ06D?

STTH30RQ06D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH30RQ06D 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 STTH30RQ06D?

For technical support, including STTH30RQ06D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH30RQ06D requirements.

6.How does Aetrix verify that STTH30RQ06D is sourced from the original manufacturer or authorized distributors?

All STTH30RQ06D 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 STTH30RQ06D meets industry standards.

7.What is the process for return or replacement of STTH30RQ06D?

All STTH30RQ06D units undergo pre-shipment inspection (PSI). If there is an issue with STTH30RQ06D, 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 STTH30RQ06D part is unused and in its original packaging.

Return procedure for STTH30RQ06D:

1.Submit a request within 90 days.

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

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