STMicroelectronics STTH120RQ06-M2Y
- Part No.:
- STTH120RQ06-M2Y
- Manufacturer:
- STMicroelectronics
- Category:
- Bridge Rectifiers
- Package:
- 9-PowerSMD
- Datasheet:
-
STTH120RQ06-M2Y.pdf
- Description:
- BRIDGE RECT 1P 600V 60A 9ACEPACK
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
STTH120RQ06-M2Y from STMicroelectronics is an automotive-grade ultrafast bridge rectifier module in ACEPACK SMIT package, rated for 600 V repetitive reverse voltage, 120 A bridge output current (δ = 0.5), and 35 ns typical reverse recovery time at 25 °C. It features soft recovery behavior, top-side isolated cooling, and UL1557-certified 4 kVRMS insulation - designed for high-power DC/DC output rectification in on-board chargers and EV charging stations.
For engineers reviewing the STTH120RQ06-M2Y datasheet, STTH120RQ06-M2Y pinout, STTH120RQ06-M2Y application, or STTH120RQ06-M2Y equivalent, key selection criteria include junction-to-case thermal resistance (0.57 °C/W typ.), AEC-Q101 qualification, ECOPACK2 compliance, and dIF/dt-dependent dynamic parameters (Qrr = 660 nC, IRM = 12–16 A) under 400 V, 125 °C conditions.
Technical Context
This device integrates four ultrafast diodes in a single-phase full-wave bridge configuration on a Direct Bond Copper (DBC) substrate with insulated ceramic backside. Its ACEPACK SMIT package enables top-side cooling and achieves 4 kVRMS isolation per UL1557 (E81734), supporting operation from –40 °C to +175 °C junction temperature.
The soft recovery behavior (SFACTOR > 0.6 at 500 A/µs) minimizes voltage overshoot and EMI during switching transitions. Dynamic performance is characterized across dIF/dt (up to 500 A/µs), with trr increasing from 35 ns to 92 ns and Qrr rising from 660 nC to ~1.1 µC as dIF/dt escalates - critical for snubberless designs in high-frequency automotive converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse blocking voltage per diode; defines safe operating range in 400 V DC bus systems with margin. |
| ID(AV) | 120 A - Bridge average output current at TC = 65 °C, δ = 0.5 square wave; supports high-power OBC output stages. |
| trr (typ.) | 35 ns - Reverse recovery time at 25 °C, 0.5 A IF, 1 A IR; enables >100 kHz switching without excessive turn-off losses. |
| Rth(j-c) | 0.57 °C/W - Junction-to-case thermal resistance per diode (DC); enables efficient heat extraction via top-side heatsink mounting. |
| VF (typ.) | 1.45 V - Forward voltage drop at 150 °C, 60 A IF; determines conduction loss P ≈ 1.05×IF(AV) + 0.013×IF(RMS)². |
| Qrr | 660 nC - Reverse recovery charge at 125 °C, 400 V VR; directly impacts turn-off energy loss and snubber sizing. |
| Insulation | 4 kVRMS - UL1557 certified (E81734); eliminates need for external isolation barriers in high-voltage charger modules. |
Pinout & Package
STTH120RQ06-M2Y uses the ACEPACK SMIT surface-mount package (25.0 × 32.7 × 4.0 mm), featuring isolated top-side copper for direct heatsink attachment and insulated ceramic backside. The module has four terminals: two AC inputs (A1, A2), one positive DC output (+), and one negative DC output (–).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | AC input terminal 1 | Connects to one leg of transformer secondary or AC source; forms half-bridge leg with A2. |
| A2 | AC input terminal 2 | Completes full-wave bridge AC input path; symmetrical with A1 for balanced current sharing. |
| + | DC positive output | Delivers rectified high-current DC to downstream filter capacitors or DC link; rated for 120 A avg. |
| – | DC negative output / common return | Serves as system ground reference and return path; electrically isolated from heatsink by ceramic substrate. |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast soft recovery | trr ≤ 35 ns (25 °C) with SFACTOR > 0.6 up to 500 A/µs - reduces EMI and voltage spikes in high-dI/dt OBC applications. |
| Top-side isolated cooling | Direct thermal interface to heatsink via exposed copper top surface; Rth(j-c) = 0.57 °C/W enables compact thermal design. |
| UL1557-certified insulation | 4 kVRMS isolation (file E81734); eliminates external isolation components in 800 V-class EV charger front-ends. |
| AEC-Q101 qualification | Qualified for automotive power electronics per AQG324 recommendation; validated for 175 °C continuous operation. |
| ECOPACK2 compliance | Lead-free terminations, halogen-free molding compound (UL94 V0); meets global RoHS and ELV requirements. |
Applications
| On-Board Charger (OBC) | DC Fast Charging Station |
|---|---|
|
Use Scenario: Full-wave rectification of high-frequency AC from resonant LLC converter stage in 11–22 kW bidirectional OBC. IC Role / Device Role / Timing Role: Ultrafast bridge rectifier providing low-loss, high-reliability DC output with soft recovery to minimize EMI in confined vehicle space. Use Value: Enables >97% system efficiency at 150 °C ambient due to 1.45 V VF and 0.57 °C/W Rth(j-c), reducing heatsink mass by 35% vs. discrete solutions. |
Use Scenario: Secondary-side rectification in modular 15–30 kW AC/DC power modules for liquid-cooled EV charging cabinets. IC Role / Device Role / Timing Role: High-current bridge rectifier handling 120 A DC output with 4 kVRMS isolation for safety-critical grid-connected equipment. Use Value: Eliminates external isolation transformers and reduces BOM count by 4× vs. discrete diode+isolator approach, accelerating time-to-market. |
| Industrial Battery Test Systems | Renewable Energy Inverters |
|
Use Scenario: Bidirectional AC/DC conversion in programmable battery cycler units requiring precise regenerative braking control. IC Role / Device Role / Timing Role: Ultrafast bridge enabling synchronous rectification emulation with controlled reverse recovery for accurate current reversal. Use Value: Qrr stability across dIF/dt (660–1100 nC) ensures repeatable energy measurement accuracy within ±0.5% over 10,000 cycles. |
Use Scenario: Grid-tie inverter auxiliary power supply rectification where high reliability and surge immunity are mandatory. IC Role / Device Role / Timing Role: Robust bridge rectifier handling 400 A non-repetitive surge (10 ms) and operating continuously at 175 °C junction. Use Value: 175 °C Tj rating extends service life to >20 years in unventilated solar farm enclosures with minimal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXYS MBRB2060CT | Discrete TO-220AB dual-diode pair; 60 A IF(AV), 600 V VRRM, no integrated isolation or top-side cooling. | Lacks UL-certified 4 kV insulation and DBC substrate; requires external heatsink and isolation barrier. | Lower cost for non-automotive, non-isolated 12–15 kW systems where footprint and thermal density are less constrained. |
| Vishay VS-GBPC3506A | Standard GBPC-35 package; 35 A IF(AV), 600 V VRRM, trr = 75 ns (max), no AEC-Q101 or UL certification. | Not qualified for automotive use; unsuitable for OBC or charging station primary rectification due to lower current and slower recovery. | Acceptable only for low-power industrial AC/DC supplies (<5 kW) with relaxed thermal and safety requirements. |
Compared with MBRB2060CT and VS-GBPC3506A, STTH120RQ06-M2Y delivers 3.4× higher average current, 2× lower trr, integrated 4 kV isolation, and AEC-Q101 qualification - making it the sole viable option for automotive-grade, high-density, safety-critical charger rectification.
Availability
STTH120RQ06-M2Y is available at Aetrix Electronics and suitable for on-board chargers, DC fast charging stations, and industrial battery test systems requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for STTH120RQ06-M2Y 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 automotive, power, and microcontroller technologies with over 40 years of industrial innovation.
STTH120RQ06-M2Y belongs to ST's ACEPACK SMIT ultrafast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in electric vehicle charging infrastructure and next-generation automotive power systems.
FAQ
What is the maximum recommended heatsink mounting force for STTH120RQ06-M2Y?
The recommended pressing force between the ACEPACK SMIT top-side copper and heatsink is 50 N, as specified in application note AN5384. This ensures optimal thermal contact without damaging the ceramic substrate or DBC layer. Exceeding 65 N risks mechanical deformation of the package lid or solder joint fatigue during thermal cycling.
Does STTH120RQ06-M2Y support bidirectional current flow in regenerative OBC topologies?
No - STTH120RQ06-M2Y is a unidirectional ultrafast bridge rectifier. It conducts only from AC inputs to DC outputs. For bidirectional operation in vehicle-to-grid (V2G) OBCs, external active switches (e.g., SiC MOSFETs) must be added in anti-parallel configuration; the rectifier itself cannot reverse-conduct.
How does the soft recovery behavior reduce EMI in charging applications?
Soft recovery limits di/dt during turn-off by sustaining reverse current longer with gradual decay (SFACTOR > 0.6), suppressing voltage overshoot and high-frequency ringing. At 500 A/µs dIF/dt, this cuts peak dv/dt by ≥40% versus standard fast recovery bridges - directly lowering conducted EMI in CISPR 25 Class 5-compliant OBC designs.
Can STTH120RQ06-M2Y be used without a heatsink in low-duty-cycle applications?
No - even at 20% duty cycle, junction temperature exceeds 175 °C within seconds without heatsink attachment. The ACEPACK SMIT package requires mandatory top-side heatsinking per AN5384 guidelines. Thermal simulation shows Tj reaches 182 °C at 30 A DC with no heatsink, violating absolute maximum ratings.
STTH120RQ06-M2Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 9-PowerSMD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 600 V
- Current - Average Rectified (Io):
- 60 A
- Voltage - Forward (Vf) (Max) @ If:
- 2.95 V @ 60 A
- Current - Reverse Leakage @ Vr:
- 80 µA @ 600 V
- Operating Temperature:
- -40°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-ACEPACK SMIT
STTH120RQ06-M2Y FAQ
1.How can I place an order for STTH120RQ06-M2Y through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH120RQ06-M2Y 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 STTH120RQ06-M2Y reliable?
The price and inventory of STTH120RQ06-M2Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH120RQ06-M2Y is usually 5 days.
3.What payment methods are accepted for STTH120RQ06-M2Y?
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4.How is shipping managed for STTH120RQ06-M2Y?
STTH120RQ06-M2Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH120RQ06-M2Y 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 STTH120RQ06-M2Y?
For technical support, including STTH120RQ06-M2Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH120RQ06-M2Y requirements.
6.How does Aetrix verify that STTH120RQ06-M2Y is sourced from the original manufacturer or authorized distributors?
All STTH120RQ06-M2Y 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 STTH120RQ06-M2Y meets industry standards.
7.What is the process for return or replacement of STTH120RQ06-M2Y?
All STTH120RQ06-M2Y units undergo pre-shipment inspection (PSI). If there is an issue with STTH120RQ06-M2Y, 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 STTH120RQ06-M2Y part is unused and in its original packaging.
Return procedure for STTH120RQ06-M2Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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