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STMicroelectronics STTH602CSFY
- Part No.:
- STTH602CSFY
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
STTH602CSFY.pdf
- Description:
- DIODE ARRAY GP 200V 3A TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:5,828
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Product details
Overview
STTH602CSFY from STMicroelectronics is an AEC-Q101-qualified dual ultrafast recovery rectifier diode in PSMC (TO-277A) package, rated 200 V VRRM, 6 A total average forward current (3 A per diode), 24 ns typical reverse recovery time (trr), and 0.80 V typical forward voltage at 125 °C - optimized for secondary-side rectification in automotive DC/DC converters and LED lighting.
For engineers reviewing the STTH602CSFY datasheet, STTH602CSFY pinout, STTH602CSFY application, or STTH602CSFY equivalent, key selection criteria include junction temperature capability up to 175 °C, surge current rating of 55 A (10 ms), thermal resistance Rth(j-c) = 2.14 °C/W, and ECOPACK2 compliance for automotive-grade reliability.
Technical Context
This dual-diode device integrates two independent ultrafast rectifiers in a single surface-mount PSMC (TO-277A) package with common cathode configuration. Each diode exhibits tightly controlled trr ≤ 31 ns and soft recovery (SFACTOR ≥ 0.4), minimizing EMI and switching losses in high-frequency topologies.
It operates across -40 °C to +175 °C junction temperature range with guaranteed VRRM stability and low conduction loss: VF = 0.92 V typ. @ 25 °C / 3 A, dropping to 0.80 V typ. @ 125 °C / 3 A - enabling efficient thermal management in space-constrained ECU power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - supports 24 V automotive systems with 3× safety margin against transients |
| IF(AV) | 6 A total (3 A per diode) - enables compact dual-channel rectification without parallel devices |
| trr (typ.) | 24 ns @ 25 °C - reduces switching loss and EMI in 100–500 kHz DC/DC converters |
| VF (typ.) | 0.80 V @ 125 °C / 3 A - lowers conduction loss and thermal stress in high-temp environments |
| IFSM | 55 A @ 10 ms - withstands load dump and cold-crank surges in automotive ECUs |
| Rth(j-c) | 2.14 °C/W - allows direct heatsinking via metal tab for >3 W dissipation at Tc = 155 °C |
| Tj(max) | 175 °C - meets under-hood temperature requirements for AEC-Q101-compliant designs |
Pinout & Package
STTH602CSFY uses the PSMC (TO-277A) surface-mount package: single-row, 3-terminal, epoxy-molded with exposed metal thermal pad (cathode-connected tab). Dimensions: 6.50 × 4.60 × 1.10 mm (L × W × H); weight: 90 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Anode 1) | Anode of Diode 1 | Input node for first rectifier channel; isolated from other terminals |
| Terminal 2 (Cathode) | Common Cathode | Shared output node; electrically connected to metal tab for thermal and electrical sinking |
| Terminal 3 (Anode 2) | Anode of Diode 2 | Input node for second rectifier channel; fully independent from Anode 1 |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power modules requiring zero-failure reliability over 15-year lifetime |
| Ultrafast recovery (trr ≤ 31 ns) | Enables >300 kHz operation with low reverse recovery charge (QRR < 100 nC) |
| 175 °C max junction temperature | Supports placement near hot components (e.g., MOSFETs, inductors) without derating |
| ECOPACK2 compliance | Meets RoHS, halogen-free, and material declaration requirements for global automotive supply chains |
| Low thermal resistance (Rth(j-c) = 2.14 °C/W) | Permits >3 W continuous dissipation with minimal heatsink area on FR4 PCB |
Applications
| Reverse Polarity Protection | Automotive DC/DC Converters |
|---|---|
Use Scenario: Input protection circuit in engine control unit (ECU) power supply. IC Role / Device Role / Timing Role: Dual-anode diode configured as OR-ing pair with common cathode tied to rail. Use Value: Prevents damage during battery reversal; leverages 55 A IFSM to survive jump-start transients. | Use Scenario: Secondary-side synchronous rectification in 12 V → 3.3 V buck converter. IC Role / Device Role / Timing Role: Ultrafast freewheeling diode replacing MOSFET body diode in non-synchronous mode. Use Value: 24 ns trr minimizes voltage overshoot and EMI vs. standard fast recovery diodes. |
| LED Lighting Drivers | Freewheeling in Inductive Loads |
Use Scenario: Output rectification in constant-current LED driver for headlamp modules. IC Role / Device Role / Timing Role: High-efficiency secondary rectifier operating at 250 kHz PWM frequency. Use Value: 0.80 V VF @ 125 °C reduces conduction loss by ~18% vs. legacy 1.1 V diodes at same current. | Use Scenario: Snubberless flyback diode across solenoid coil in transmission control module. IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback during switch-off. Use Value: Soft recovery (SFACTOR ≥ 0.4) suppresses voltage ringing and contact arcing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast dual rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH602CW | Same die, TO-220AC package; Rth(j-c) = 1.5 °C/W; no common cathode tab | Requires through-hole mounting and external heatsink; not suitable for space-constrained SMT layouts | Select when higher thermal performance is needed and board real estate permits through-hole assembly. |
| VS-6EWH02-M3 | 200 V, 6 A dual ultrafast; trr = 35 ns (max); VF = 0.95 V @ 125 °C; DO-214AB package | Higher VF increases conduction loss; larger footprint than PSMC; lacks AEC-Q101 certification | Select only for non-automotive industrial use where cost is prioritized over thermal efficiency and qualification. |
Compared with STTH602CW and VS-6EWH02-M3, STTH602CSFY uniquely combines AEC-Q101 qualification, SMT-compatible PSMC packaging, 2.14 °C/W thermal resistance, and 24 ns trr - making it the only option qualified for under-hood automotive rectification with minimal board area and thermal overhead.
Availability
STTH602CSFY is available at Aetrix Electronics and suitable for automotive ECUs, LED lighting drivers, and industrial DC/DC converters requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for STTH602CSFY 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.
STTH602CSFY belongs to ST's STTH ultrafast rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in automotive power systems operating up to 175 °C.
FAQ
Is STTH602CSFY pin-compatible with STTH602CW?
No. STTH602CSFY uses the 3-pin PSMC (TO-277A) surface-mount package with common cathode tab, while STTH602CW uses the 2-pin TO-220AC through-hole package with isolated cathodes. Footprint, thermal path, and mounting method differ fundamentally - direct replacement requires PCB redesign.
What is the maximum recommended PCB copper area for thermal relief?
For optimal thermal performance, ST recommends ≥ 10 cm² of 70 µm-thick copper connected directly to the cathode tab. Figure 11 in DS13549 shows Rth(j-a) drops from ~50 °C/W (no copper) to ~12 °C/W with 10 cm², enabling >2 W continuous dissipation on standard FR4.
Does STTH602CSFY support synchronous rectification?
No. STTH602CSFY is a passive ultrafast diode, not a synchronous rectifier IC or MOSFET-based controller. It functions as a freewheeling or rectifying element in non-synchronous topologies. For synchronous designs, discrete MOSFETs with gate drivers are required.
How does its reverse leakage compare at high temperature?
At Tj = 125 °C and VR = VRRM, IR is specified at ≤ 30 µA (max), rising from ≤ 4 µA at 25 °C. This low leakage preserves efficiency in high-temp LED drivers and ensures stable biasing in precision sensing circuits near power stages.
STTH602CSFY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ECOPACK®2
- Package/Case:
- TO-277, 3-PowerDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.06 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 31 ns
- Current - Reverse Leakage @ Vr:
- 4 µA @ 200 V
- Operating Temperature - Junction:
- -40°C ~ 175°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
STTH602CSFY FAQ
1.How can I place an order for STTH602CSFY through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH602CSFY 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 STTH602CSFY reliable?
The price and inventory of STTH602CSFY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH602CSFY is usually 5 days.
3.What payment methods are accepted for STTH602CSFY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH602CSFY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH602CSFY?
STTH602CSFY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH602CSFY 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 STTH602CSFY?
For technical support, including STTH602CSFY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH602CSFY requirements.
6.How does Aetrix verify that STTH602CSFY is sourced from the original manufacturer or authorized distributors?
All STTH602CSFY 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 STTH602CSFY meets industry standards.
7.What is the process for return or replacement of STTH602CSFY?
All STTH602CSFY units undergo pre-shipment inspection (PSI). If there is an issue with STTH602CSFY, 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 STTH602CSFY part is unused and in its original packaging.
Return procedure for STTH602CSFY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STTH602CSFY Tags
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