My Inquiry
My Account
STMicroelectronics STTH3R06UFY
- Part No.:
- STTH3R06UFY
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- DO-221AA, SMB Flat Leads
- Datasheet:
-
STTH3R06UFY.pdf
- Description:
- DIODE GEN PURP 600V 3A SMBFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:9,140
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STTH3R06UFY 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 3 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.
For engineers reviewing the STTH3R06UFY datasheet, STTH3R06UFY pinout, STTH3R06UFY application, or STTH3R06UFY equivalent, key selection criteria include ultrafast recovery (35 ns typ.), low conduction loss (VF = 1.1 V @ 150 °C), high surge capability (30 A IFSM), and wettable-flank SMB Flat packaging for automotive-grade solder joint inspection.
Technical Context
This diode implements a turbo 2 ultrafast recovery structure optimized for clamping in high-frequency energy recovery blocks-common in automotive DC-DC converters and regenerative braking interfaces. Its design balances low VF (1.1 V @ 150 °C) and fast trr (35 ns typ.) to minimize switching losses while maintaining robustness against voltage transients.
Thermal performance is enabled by a 16 °C/W junction-to-lead thermal resistance and operation across -40 to +175 °C ambient range. The device's soft recovery behavior (S-factor >1.0 over dIF/dt ≤500 A/µs) reduces EMI generation during commutation in inductive loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - withstands repetitive reverse voltage up to 600 V across full -40 to +175 °C operating range |
| IF(AV) | 3 A - continuous average forward current at TL = 90 °C with 50% duty cycle |
| trr (typ.) | 35 ns - enables efficient high-frequency switching in energy recovery topologies |
| VF (typ.) | 1.1 V @ Tj = 150 °C, IF = 3 A - low conduction loss under hot automotive conditions |
| IFSM | 30 A - handles short-duration surge currents (10 ms, half-sine) without failure |
| Tj (max.) | 175 °C - supports under-hood automotive placement without derating penalties |
| Rth(j-l) | 16 °C/W - enables direct thermal coupling to PCB copper for passive cooling |
Pinout & Package
The STTH3R06UFY is housed in an SMB Flat package with wettable flanks, compliant with ECOPACK2/ECOPACK3 environmental standards. It features two terminals: anode and cathode, with no internal gating or control pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to source of energy recovery path; must handle 3 A continuous and 30 A surge |
| Cathode | Forward current exit / reverse blocking terminal | Connected to clamp node; sustains 600 V reverse bias and defines recovery timing reference |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity, and mechanical shock per JESD47 |
| Ultrafast recovery (35 ns) | Reduces switching losses and EMI in >100 kHz energy recovery circuits |
| Wettable flank SMB Flat | Enables automated optical inspection (AOI) of solder joints on automotive PCB assemblies |
| High surge capability (30 A) | Withstands load dump and inductive kick events in 12 V/42 V vehicle systems |
| Low leakage (<3 µA @ 25 °C) | Maintains system efficiency in standby and low-power modes |
Applications
| Automotive Regenerative Braking Clamp | On-Board Charger (OBC) Snubber |
|---|---|
Use Scenario: Clamps voltage spikes during motor deceleration in 48 V mild-hybrid systems. IC Role / Device Role / Timing Role: Ultrafast power rectifier performing active clamping with 35 ns recovery to limit dv/dt stress on IGBTs. Use Value: Prevents overvoltage failure of main switches while minimizing conduction loss (VF = 1.1 V @ 150 °C). | Use Scenario: Absorbs turn-off energy in AC-DC PFC stages of EV on-board chargers. IC Role / Device Role / Timing Role: Turbo 2 ultrafast diode providing low-loss snubbing with soft recovery (S-factor >1.0) to reduce EMI. Use Value: Enables compact heatsink-free layout due to 175 °C max junction rating and 16 °C/W Rth(j-l). |
| Start-Stop System DC-DC Converter | Electric Power Steering (EPS) Energy Recovery |
Use Scenario: Recovers inductive energy from solenoid drivers during engine restart cycles. IC Role / Device Role / Timing Role: High-reliability clamping diode operating continuously at 150 °C ambient under hood. Use Value: Eliminates need for external thermal derating via AEC-Q101 validation and 30 A IFSM surge margin. | Use Scenario: Captures back-EMF from EPS motor windings during torque reversal. IC Role / Device Role / Timing Role: Fast-recovery rectifier integrated into H-bridge freewheeling path with wettable flank for AOI. Use Value: Ensures solder joint reliability in safety-critical steering systems through ECOPACK3-compliant SMB Flat packaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast power rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06UFY | Lower VF (0.95 V typ. @ 150 °C) but slower trr (50 ns typ.) | Better conduction efficiency, less suitable for >200 kHz switching | Select when thermal budget dominates over switching frequency |
| VS-3EYH06-M3 | Same SMB Flat package; trr = 30 ns typ., VF = 1.25 V @ 150 °C | Slightly faster recovery but higher conduction loss | Select when EMI reduction is prioritized over junction temperature rise |
Compared with STTH3R06UFY, STTH3L06UFY trades speed for lower VF-ideal for thermally constrained 100–150 kHz designs-while VS-3EYH06-M3 offers marginal trr improvement at the cost of +0.15 V VF, making it preferable only where EMI compliance is critical and board-level thermal management is robust.
Availability
STTH3R06UFY is available at Aetrix Electronics and suitable for automotive regenerative braking, on-board charger snubbing, and start-stop DC-DC converter applications requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for STTH3R06UFY 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.
The STTHxR06-Y series targets high-reliability automotive power conversion, specifically engineered for ultrafast clamping and energy recovery functions in harsh under-hood environments.
FAQ
What is the maximum junction temperature rating for STTH3R06UFY?
The STTH3R06UFY is rated for a maximum junction temperature of +175 °C, validated across its full operating range from -40 to +175 °C. This rating is guaranteed per AEC-Q101 stress testing and supported by thermal data showing stable Rth(j-l) = 16 °C/W and no thermal runaway under specified (dPtot/dTj) < (1/Rth(j-a)) conditions.
Is STTH3R06UFY compatible with lead-free reflow processes?
Yes, STTH3R06UFY uses a lead-free SMB Flat package compliant with JEDEC J-STD-020 moisture sensitivity level (MSL) 1 and qualified for standard Pb-free reflow profiles up to 260 °C peak. Its wettable flanks ensure reliable solder fillet formation and compatibility with automated optical inspection (AOI) in automotive assembly lines.
How does the soft recovery characteristic benefit EMI performance?
The STTH3R06UFY exhibits a soft recovery factor (S-factor) >1.0 across dIF/dt up to 500 A/µs, meaning peak reverse recovery current (IRM) rises gradually rather than abruptly. This suppresses high-frequency ringing and dv/dt-induced noise, directly reducing conducted and radiated EMI in automotive power converters without requiring additional RC snubbers.
Can STTH3R06UFY replace STTH3R06D in the same footprint?
No-STTH3R06UFY uses the SMB Flat package with wettable flanks, while STTH3R06D uses the standard SMB package without flank extensions. Though both share identical electrical specs and pin-to-pin terminal alignment, the footprint pad layout differs: UFY requires extended side pads for AOI, whereas the D variant uses conventional rectangular pads. PCB redesign is required for substitution.
STTH3R06UFY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ECOPACK®2
- 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):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.9 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 3 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
STTH3R06UFY FAQ
1.How can I place an order for STTH3R06UFY through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH3R06UFY 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 STTH3R06UFY reliable?
The price and inventory of STTH3R06UFY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH3R06UFY is usually 5 days.
3.What payment methods are accepted for STTH3R06UFY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH3R06UFY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH3R06UFY?
STTH3R06UFY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH3R06UFY 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 STTH3R06UFY?
For technical support, including STTH3R06UFY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH3R06UFY requirements.
6.How does Aetrix verify that STTH3R06UFY is sourced from the original manufacturer or authorized distributors?
All STTH3R06UFY 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 STTH3R06UFY meets industry standards.
7.What is the process for return or replacement of STTH3R06UFY?
All STTH3R06UFY units undergo pre-shipment inspection (PSI). If there is an issue with STTH3R06UFY, 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 STTH3R06UFY part is unused and in its original packaging.
Return procedure for STTH3R06UFY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STTH3R06UFY Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
