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

STMicroelectronics STTH15RQ06G-TR

Name: STTH15RQ06G-TR
Brand: STMicroelectronics
SKU: STTH15RQ06G-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH15RQ06G-TR

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: STTH15RQ06G-TR.pdf

Description:: DIODE GEN PURP 600V 15A D2PAK

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Product details

Overview

STTH15RQ06G-TR from STMicroelectronics is a 600 V, 15 A ultrafast recovery rectifier diode in D²PAK package, optimized for high-voltage secondary rectification in LLC full-bridge topologies and PFC stages. It delivers 1.45 V max forward voltage at 150 °C, 25 ns max reverse recovery time, and 175 °C maximum junction temperature - enabling high-efficiency, thermally robust operation in air conditioning inverters and EV charging stations.

For engineers reviewing the STTH15RQ06G-TR datasheet, STTH15RQ06G-TR pinout, STTH15RQ06G-TR application, or STTH15RQ06G-TR equivalent, key selection criteria include soft recovery behavior (S-factor >1.0), low thermal resistance (1.5 °C/W j-c), creepage distance compliance (5.38 mm anode-to-cathode with coating), and ECOPACK®2 environmental certification.

Technical Context

This diode employs a Turbo 2 silicon epitaxial structure to achieve ultrafast switching with soft reverse recovery - minimizing EMI and voltage overshoot during turn-off in hard-switched and resonant converters. Its design targets high dI_F/dt immunity (up to 500 A/µs) and stable Q_RR (250 nC typical) across temperature.

Thermal performance is enhanced by low R_th(j-c) (1.5 °C/W), enabling high-power dissipation with minimal heatsink area. The D²PAK package provides mechanical robustness and improved creepage (5.38 mm min. anode–cathode) for reinforced insulation in 600 V systems compliant with IEC 60664-1.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - supports primary-side isolation and bus voltages up to 400 V DC link with safety margin in industrial UPS and EV chargers.
I_F(AV)	15 A - rated average forward current at T_C = 115 °C, suitable for continuous conduction mode (CCM) PFC and LLC output rectification.
V_F (max)	1.45 V at 15 A, 150 °C - enables low conduction loss (P_cond ≈ 1.05×I_F(AV) + 0.053×I_F(RMS)²) in high-temp environments.
t_rr (max)	25 ns at 0.5 A/1 A test condition - ensures fast turn-off with minimal tail current, reducing switching loss in 100–300 kHz LLC converters.
R_th(j-c)	1.5 °C/W - allows direct PCB copper pad thermal coupling, supporting >20 W power dissipation without oversized heatsinks.
Creepage (A–K)	5.38 mm min. (with top coating) - meets reinforced insulation requirements for 600 V working voltage per IEC 60664-1 in D²PAK HV variant.
T_j(max)	175 °C - extends operational lifetime under transient overload and high ambient conditions in air conditioning compressors.

Pinout & Package

D²PAK (TO-263) surface-mount package with isolated tab (anode-connected), single cathode terminal, and integrated thermal pad for direct PCB conduction cooling. Package complies with ECOPACK®2 environmental standards and UL94 V0 flammability rating.

Pin/Terminal	Circuit Role	Design Meaning
Tab (Anode)	Anode connection / thermal path	Electrically active anode terminal; must be soldered to large copper pour for thermal management and electrical return.
Lead 2 (Cathode)	Cathode connection	Only signal terminal; carries full forward current and reverse blocking voltage; requires proper trace width and clearance.

Key Features

Feature	Design Value
Ultrafast soft recovery	S-factor >1.0 across dI_F/dt range (0–500 A/µs), suppressing voltage ringing and reducing snubber losses in high-frequency LLC converters.
High-temperature operation	Rated for continuous 175 °C junction temperature, enabling compact designs in sealed enclosures like HVAC inverters and onboard chargers.
Low thermal resistance	1.5 °C/W junction-to-case enables >20 W steady-state dissipation using standard 4-layer PCB with 10 cm² 2 oz copper pad.
Reinforced creepage	5.38 mm anode-to-cathode spacing (D²PAK HV variant) satisfies IEC 60664-1 for 600 V working voltage in industrial safety-critical applications.
ECOPACK®2 compliance	Halogen-free, RoHS-compliant epoxy and lead-free termination - meets global environmental regulations without derating or process change.

Applications

LLC Resonant Converter Output Rectification

PFC Boost Diode in Industrial SMPS

Use Scenario: High-efficiency 2–5 kW server PSU or telecom rectifier using asymmetric half-bridge LLC topology with synchronous rectification disabled.

IC Role / Device Role / Timing Role: Primary secondary-side unidirectional power transfer device; conducts during positive half-cycle of resonant tank voltage; turns off rapidly with soft recovery to minimize dv/dt stress on MOSFETs.

Use Value: 25 ns t_rr and low Q_RR reduce switching loss by ≥15% vs. standard FRDs, while 1.45 V V_F maintains conduction efficiency at full load.

Use Scenario: Active PFC stage in 3 kW industrial motor drive, operating at 70 kHz with 400 V DC bus and 230 V AC input.

IC Role / Device Role / Timing Role: Boost diode conducting during MOSFET off-time; blocks 600 V reverse voltage while sustaining 15 A average current with minimal reverse recovery charge injection into boost inductor.

Use Value: Soft recovery limits peak reverse current (I_RM ≤ 8 A) and reduces EMI filter size; 175 °C rating avoids thermal derating at 70 °C ambient.

Uninterruptible Power Supply (UPS) Inverter Stage

EV Onboard Charger (OBC) Secondary Rectification

Use Scenario: Double-conversion online UPS with 6 kVA capacity, requiring reliable 600 V rectification in battery-charging and inverter output paths.

IC Role / Device Role / Timing Role: Freewheeling and clamping diode in H-bridge inverter output stage; handles bidirectional reactive power flow and absorbs inductive kickback during PWM transitions.

Use Value: 120 A non-repetitive surge rating (I_FSM) withstands short-circuit transients; low IR (≤400 µA @ 150 °C) prevents leakage-induced bus droop during standby.

Use Scenario: 6.6 kW OBC with dual-phase LLC converter, where secondary-side rectification occurs at 100–200 kHz with 400 V battery interface.

IC Role / Device Role / Timing Role: High-voltage output rectifier converting resonant AC to regulated DC; operates continuously at elevated case temperature (>100 °C) due to enclosure constraints.

Use Value: 1.5 °C/W R_th(j-c) enables stable 15 A operation with <10 °C ΔT above heatsink; D²PAK footprint simplifies automated assembly and thermal validation.

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
STTH15R06DJ-TR	D²PAK package, same V_RRM/I_F(AV), but 35 ns t_rr (max) and no D²PAK HV creepage enhancement.	Lacks 5.38 mm creepage; unsuitable for reinforced insulation requirements in medical or grid-tied OBC designs.	Select when creepage >5 mm is not mandated and cost sensitivity outweighs soft recovery priority.
IXYS MUR1560CT	TO-220AB dual common-cathode configuration; 600 V, 15 A per diode; t_rr = 35 ns (typ), higher V_F (1.75 V @ 15 A).	Through-hole mounting; higher conduction loss; no surface-mount thermal pad; unsuitable for high-density SMT layouts.	Choose only for legacy through-hole production or dual-diode redundancy needs; avoid for new SMT LLC designs.

Compared with STTH15RQ06G-TR, STTH15R06DJ-TR trades soft recovery and creepage for lower cost, while IXYS MUR1560CT sacrifices SMT compatibility and thermal efficiency for dual-diode integration - making the STTH15RQ06G-TR optimal for space-constrained, high-frequency, safety-certified applications.

Availability

STTH15RQ06G-TR is available at Aetrix Electronics and suitable for LLC resonant converters, industrial PFC modules, and EV onboard charger designs requiring stable component supply, high-temperature reliability, and reinforced insulation compliance.

Supply support for STTH15RQ06G-TR 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, sensors, and analog ICs for automotive, industrial, and consumer markets.

This diode belongs to ST's Turbo 2 ultrafast rectifier product line, engineered specifically for high-frequency, high-voltage switching power supplies where soft recovery, thermal resilience, and safety-compliant packaging are critical.

FAQ

What is the maximum recommended mounting torque for the STTH15RQ06G-TR D²PAK package?

The D²PAK package does not require mechanical screw mounting; it is soldered directly to the PCB. Unlike TO-220AC or DO-247 variants, it has no mounting hole or torque specification. Thermal performance relies entirely on solder joint integrity and copper pad area beneath the tab.

Does STTH15RQ06G-TR support parallel operation for higher current handling?

Yes, but with strict layout and thermal matching: identical trace lengths, symmetric copper pours, and shared thermal plane are mandatory. Derating to ≤12 A per device is advised due to V_F mismatch (±50 mV typical), which causes current imbalance exceeding 20% without external ballasting.

Is the STTH15RQ06G-TR pinout compatible with STTH15RQ06G2-TR?

Yes - both use identical D²PAK footprint and pin assignment (anode tab, cathode lead). However, STTH15RQ06G2-TR is the D²PAK HV variant with enhanced 5.38 mm creepage; it is physically interchangeable but offers superior isolation for safety-critical designs.

How does the soft recovery behavior impact EMI filter design in a 200 kHz LLC converter?

With S-factor >1.0 and t_rr ≤25 ns, the diode minimizes high-frequency spectral content above 10 MHz. This reduces common-mode noise amplitude by ~12 dB compared to standard FRDs, allowing smaller Y-capacitors and simplified EMI filter layout without compromising CISPR-32 Class B compliance.

STTH15RQ06G-TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: ECOPACK®

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 15A

Voltage - Forward (Vf) (Max) @ If:: 2.95 V @ 15 A

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

Reverse Recovery Time (trr):: 50 ns

Current - Reverse Leakage @ Vr:: 20 µA @ 600 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

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

STTH15RQ06G-TR FAQ

1.How can I place an order for STTH15RQ06G-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH15RQ06G-TR 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 STTH15RQ06G-TR reliable?

The price and inventory of STTH15RQ06G-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH15RQ06G-TR is usually 5 days.

3.What payment methods are accepted for STTH15RQ06G-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH15RQ06G-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH15RQ06G-TR?

STTH15RQ06G-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH15RQ06G-TR 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 STTH15RQ06G-TR?

For technical support, including STTH15RQ06G-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH15RQ06G-TR requirements.

6.How does Aetrix verify that STTH15RQ06G-TR is sourced from the original manufacturer or authorized distributors?

All STTH15RQ06G-TR 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 STTH15RQ06G-TR meets industry standards.

7.What is the process for return or replacement of STTH15RQ06G-TR?

All STTH15RQ06G-TR units undergo pre-shipment inspection (PSI). If there is an issue with STTH15RQ06G-TR, 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 STTH15RQ06G-TR part is unused and in its original packaging.

Return procedure for STTH15RQ06G-TR:

1.Submit a request within 90 days.

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

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