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STMicroelectronics STTH2R06UFY
- Part No.:
- STTH2R06UFY
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- DO-221AA, SMB Flat Leads
- Datasheet:
-
STTH2R06UFY.pdf
- Description:
- DIODE GEN PURP 600V 2A SMBFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:4,414
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Product details
Overview
STTH2R06UFY from STMicroelectronics is an AEC-Q101-qualified ultrafast recovery power rectifier in SMB Flat package, designed for clamping in automotive energy recovery circuits. It delivers 2 A average forward current, 600 V repetitive peak reverse voltage, 35 ns typical reverse recovery time, 1.1 V typical forward voltage at 150 °C, and operates up to 175 °C junction temperature - enabling robust performance in engine control and regenerative braking modules.
For engineers reviewing the STTH2R06UFY datasheet, STTH2R06UFY pinout, STTH2R06UFY application, or STTH2R06UFY equivalent, key selection criteria include ultrafast trr (35 ns), low VF at high Tj, surge capability (28 A IFSM), thermal resistance (18 °C/W j-to-lead), and wettable flank compatibility for automated optical inspection in automotive PCB assembly.
Technical Context
This diode employs a planar epitaxial silicon structure optimized for low Qrr and controlled softness in reverse recovery, minimizing EMI in high-dV/dt switching environments. Its 1.1 V VF at 150 °C and 2 A supports efficient conduction in compact, thermally constrained automotive power stages.
The SMB Flat package features wettable flanks and UL94 V0 epoxy, enabling reliable reflow soldering and AOI verification. Thermal design is supported by Rth(j-l) = 18 °C/W and validated operation from –40 °C to +175 °C with VRRM guaranteed across that full range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Withstands repetitive reverse voltage up to 600 V across full operating temperature range (–40 to +175 °C), critical for 48 V mild-hybrid systems. |
| IF(AV) | 2 A at TL = 110 °C - Sustains continuous forward current under real-world board-level thermal conditions without derating. |
| trr (typ.) | 35 ns - Enables high-frequency switching (>100 kHz) with minimal switching loss and reduced snubbing requirements. |
| VF (typ.) | 1.1 V at Tj = 150 °C, IF = 2 A - Low conduction loss at elevated temperature improves system efficiency in under-hood applications. |
| IFSM | 28 A (tp = 10 ms) - Handles transient load dumps and inductive kickback in automotive power rails without failure. |
| Rth(j-l) | 18 °C/W - Enables direct thermal path to PCB copper, simplifying heatsinking for space-constrained modules. |
Pinout & Package
SMB Flat surface-mount package with two terminals: anode and cathode. Dimensions: 5.60 × 3.95 × 1.10 mm (L × W × H), wettable flank leads for solder joint inspection. JEDEC MO-213AA compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to source of energy recovery path (e.g., motor phase or inductive load); must be routed with low-inductance trace. |
| Cathode | Forward current exit / clamping reference | Connected to rail or clamp node; polarity defines direction of freewheeling current during turn-off. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity, and mechanical shock per JESD47 - eliminates need for additional qualification testing. |
| Ultrafast trr (35 ns typ.) | Reduces switching losses by >40% vs. standard fast recovery diodes in 100–200 kHz PWM circuits, lowering MOSFET stress and heatsink size. |
| Wettable flank leads | Enables automated optical inspection (AOI) of solder fillet integrity on bottom-side terminals - essential for zero-defect automotive manufacturing. |
| High Tj max (175 °C) | Supports placement near heat sources (e.g., inverters, DC/DC converters) without thermal derating or external cooling. |
Applications
| Engine Control Unit (ECU) Clamping | Regenerative Braking Diode |
|---|---|
Use Scenario: Suppresses inductive voltage spikes from fuel injector or solenoid drivers in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Ultrafast clamping diode placed across inductive load to limit flyback voltage to ≤600 V within nanoseconds. Use Value: Prevents MOSFET breakdown during rapid turn-off while maintaining <35 ns response - critical for ASIL-B functional safety compliance. | Use Scenario: Freewheeling path for motor current during regenerative braking in 48 V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Conducts reverse-recovery current with minimal Qrr and soft recovery to reduce EMI in high-dI/dt motor phases. Use Value: Enables >95% energy recovery efficiency at 150 °C ambient with no thermal runaway risk due to 18 °C/W Rth(j-l). |
| On-Board Charger (OBC) Snubber | DC/DC Converter Output Rectification |
Use Scenario: Absorbs switching transients in SiC MOSFET-based OBC PFC stages operating at 100–300 kHz. IC Role / Device Role / Timing Role: Fast-recovery snubber diode in RCD clamp network, synchronized to switching edge timing. Use Value: Limits peak voltage overshoot to <10% above bus voltage using 35 ns trr and low IRM - reduces SiC gate driver stress. | Use Scenario: Secondary-side rectification in isolated 48 V → 12 V DC/DC converters for ADAS domain controllers. IC Role / Device Role / Timing Role: High-efficiency output rectifier delivering 2 A continuous current with minimal conduction loss at 150 °C. Use Value: Achieves 1.1 V VF at full load and high temperature, cutting conduction loss by 22% vs. legacy 1.4 V diodes - extends converter lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06DJF | Same die, DPAK package (Rth(j-a) ≈ 50 °C/W vs. 18 °C/W j-l); no wettable flanks. | Better for discrete heatsink mounting; unsuitable for AOI-dependent automotive SMT lines. | Select when thermal interface to heatsink is available and optical inspection not required. |
| ON Semiconductor MUR260E | 600 V, 2 A, trr = 50 ns (typ.), VF = 1.25 V @ 150 °C; not AEC-Q101 qualified. | Limited to industrial/commercial use; lacks automotive reliability validation and temperature-range VRRM guarantee. | Acceptable for non-safety-critical 12 V systems where cost is prioritized over qualification and thermal performance. |
Compared with STTH2R06UFY, STTH2R06DJF trades AOI capability and lower Rth(j-l) for heatsink compatibility, while MUR260E offers lower cost but forfeits AEC-Q101 validation and fails to guarantee VRRM at 175 °C - making STTH2R06UFY the only choice for production automotive energy recovery designs requiring both reliability and manufacturability.
Availability
STTH2R06UFY is available at Aetrix Electronics and suitable for engine control units, regenerative braking modules, on-board chargers, and 48 V DC/DC converters requiring stable component supply across automotive production lifecycles.
Supply support for STTH2R06UFY 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.
STTH2R06UFY belongs to ST's Turbo 2 ultrafast rectifier product line, engineered specifically for high-reliability automotive energy recovery and clamping functions where speed, temperature resilience, and process compatibility are non-negotiable.
FAQ
Is STTH2R06UFY pin-compatible with STTH2R06-Y?
Yes - STTH2R06UFY and STTH2R06-Y share identical SMB Flat package dimensions, terminal layout, and electrical specifications. The "UFY" suffix denotes tape-and-reel packaging (5000 pcs) with wettable flank leads; "Y" is the base part number used in documentation. No PCB redesign is needed when substituting.
What is the maximum allowable PCB copper area for optimal thermal performance?
Per Figure 12 in DS10492, Rth(j-a) drops from ~120 °C/W (no copper) to ~40 °C/W with 2.5 cm² of 70 µm-thick FR4 copper per lead. For best results, allocate ≥4 cm² total copper (2 cm² per lead) with thermal vias to inner layers - achieving Rth(j-a) < 30 °C/W in typical automotive layouts.
Does STTH2R06UFY require a snubber circuit in 200 kHz PFC applications?
Not inherently - its 35 ns trr and soft recovery profile minimize voltage overshoot. However, a small RC snubber (e.g., 100 Ω + 100 pF) is recommended when used with SiC MOSFETs switching >150 kHz to damp high-frequency ringing caused by stray inductance, as confirmed in ST application note AN5067.
How does leakage current behave at 125 °C and full VRRM?
At Tj = 125 °C and VR = 600 V, IR is specified at 12 µA (typ.) and up to 85 µA (max.). This remains well below 100 µA, ensuring negligible standby power loss in always-on automotive modules - verified per Table 3 test conditions with 5 ms pulse width and <2% duty cycle.
STTH2R06UFY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- DO-221AA, SMB Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.9 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 85 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 600 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMBflat
- Operating Temperature - Junction:
- -40°C ~ 175°C
STTH2R06UFY FAQ
1.How can I place an order for STTH2R06UFY through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH2R06UFY 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 STTH2R06UFY reliable?
The price and inventory of STTH2R06UFY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH2R06UFY is usually 5 days.
3.What payment methods are accepted for STTH2R06UFY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH2R06UFY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH2R06UFY?
STTH2R06UFY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH2R06UFY 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 STTH2R06UFY?
For technical support, including STTH2R06UFY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH2R06UFY requirements.
6.How does Aetrix verify that STTH2R06UFY is sourced from the original manufacturer or authorized distributors?
All STTH2R06UFY 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 STTH2R06UFY meets industry standards.
7.What is the process for return or replacement of STTH2R06UFY?
All STTH2R06UFY units undergo pre-shipment inspection (PSI). If there is an issue with STTH2R06UFY, 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 STTH2R06UFY part is unused and in its original packaging.
Return procedure for STTH2R06UFY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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