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STMicroelectronics STPS660CSFY
- Part No.:
- STPS660CSFY
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
STPS660CSFY.pdf
- Description:
- DIODE SCHOTTKY 60V 3A TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:2,935
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Product details
Overview
STPS660CSFY from STMicroelectronics is an AEC-Q101-qualified dual 3 A automotive Schottky rectifier in PSMC (TO-277A) package, rated for 60 V repetitive peak reverse voltage, 175 °C maximum junction temperature, and typ. 0.50 V forward voltage at 3 A and 125 °C - optimized for secondary rectification in DC/DC converters and freewheeling in engine control units.
For engineers reviewing the STPS660CSFY datasheet, STPS660CSFY pinout, STPS660CSFY application, or STPS660CSFY equivalent, key selection criteria include its dual-diode configuration, low VF/IR trade-off at high Tj, AEC-Q101 qualification, and thermal performance with Rth(j-c) = 1.5 °C/W - critical for under-hood power conversion reliability.
Technical Context
This dual common-cathode Schottky rectifier integrates two independent 60 V / 3 A diodes in a single PSMC (TO-277A) thermally enhanced surface-mount package. Its design targets high-efficiency, high-temperature operation in automotive power stages where conduction loss minimization and reverse leakage stability across -40 °C to +175 °C are mandatory.
The device uses platinum-silicon barrier technology to achieve VF as low as 0.50 V (typ.) at 3 A and 125 °C while maintaining IR ≤ 10 mA at 125 °C and VR = 60 V. It supports surge currents up to 120 A (10 ms sinusoidal) and delivers 170 W avalanche power capability at 10 µs pulse width.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - maximum repetitive reverse blocking voltage per diode, guaranteed over full -40 °C to +175 °C junction range |
| IF(AV) per diode | 3 A - average forward current per diode at Tc = 160 °C, δ = 0.5, enabling compact thermal design |
| VF (typ.) | 0.50 V at IF = 3 A, Tj = 125 °C - low conduction loss directly reduces power stage inefficiency in 12 V–48 V DC/DC systems |
| IR (max) | 10 mA at VR = 60 V, Tj = 125 °C - stable leakage ensures minimal standby power loss in always-on ECU modules |
| Rth(j-c) | 1.5 °C/W - low junction-to-case thermal resistance enables direct heatsink mounting without thermal vias |
| IFS M | 120 A - non-repetitive surge rating supports load dump and inductive kick transient immunity |
| Tj (max) | 175 °C - extended junction temperature rating allows placement near hot components in engine bay applications |
Pinout & Package
STPS660CSFY uses the PSMC (TO-277A) thermally optimized surface-mount package with exposed metal tab for direct thermal conduction. The dual-diode structure features a common cathode configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first Schottky diode | Accepts forward current up to 3 A; electrically isolated from A2 but shares cathode node |
| Anode 2 (A2) | Input terminal for second Schottky diode | Enables dual-channel rectification or independent freewheeling paths in multi-phase topologies |
| Cathode (K) | Common output node for both diodes | Low-inductance, high-current return path; connected to exposed metal tab for thermal and electrical grounding |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock per stress test requirements |
| 175 °C max. Tj operation | Enables placement in high-ambient zones (e.g., near exhaust manifolds or power inductors) without derating |
| Low VF / IR balance | 0.50 V VF at 125 °C and <10 mA IR at same condition - reduces both conduction loss and standby dissipation simultaneously |
| ECOPACK2 compliance | Halogen-free, RoHS-compliant construction with lead-free terminations meeting automotive environmental standards |
| High IFSM capability | 120 A surge rating supports robustness against load dump transients in 12 V vehicle electrical systems |
Applications
| Engine Control Unit (ECU) | 48 V Mild Hybrid DC/DC Converter |
|---|---|
Use Scenario: Reverse polarity protection on main 12 V input rail of engine control unit. IC Role / Device Role / Timing Role: Dual Schottky rectifier configured as back-to-back anode-connected diodes to block reverse current during battery misconnection. Use Value: Prevents damage to MCU and CAN transceivers without adding series resistance or active circuitry - enabled by low VF and AEC-Q101 reliability. | Use Scenario: Secondary-side synchronous rectification in bidirectional 48 V/12 V DC/DC converter for mild hybrid vehicles. IC Role / Device Role / Timing Role: Freewheeling diode pair replacing MOSFETs in low-side clamp leg to reduce gate drive complexity and improve light-load efficiency. Use Value: Achieves >94% efficiency at 500 W output with <0.5 V conduction drop at 125 °C - critical for thermal management in confined power module space. |
| Automotive Infotainment Power Supply | Electric Power Steering (EPS) Auxiliary Rail |
Use Scenario: Output rectification for isolated 5 V/3 A auxiliary supply powering audio DSP and display controllers. IC Role / Device Role / Timing Role: Dual common-cathode Schottky providing parallel 3 A paths to meet ripple and thermal requirements in compact layout. Use Value: Enables 10 mm² PCB footprint reduction vs. discrete dual-SOD123 solution while maintaining 175 °C operation for under-dash mounting. | Use Scenario: Freewheeling path for H-bridge motor driver supplying 24 V auxiliary power to EPS torque sensor and position encoder. IC Role / Device Role / Timing Role: Low-VF dual diode clamping inductive energy during PWM dead-time, minimizing voltage spikes and EMI. Use Value: Limits VDS spike to <65 V during 100 A motor current decay - verified per ISO 7637-2 Pulse 5a - due to fast recovery and low stored charge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40002MT1G | Single 4 A diode in SOD-123FL; no dual configuration; VF = 0.52 V @ 3 A, 125 °C; VRRM = 40 V | Limited to single-rail use; insufficient for 60 V systems; lower surge rating (80 A) | Only suitable for cost-sensitive 12 V-only applications where dual functionality and 60 V rating are not required |
| Vishay VS-6CWQ06FN-M3 | Dual 3 A, 60 V in TO-252AA; VF = 0.57 V @ 3 A, 125 °C; Rth(j-c) = 2.5 °C/W; AEC-Q101 qualified | Larger footprint; higher thermal resistance limits power density; same voltage/current rating | Preferred when board-level reworkability or through-hole compatibility is needed, but less optimal for space-constrained automotive modules |
Compared with NSS40002MT1G and VS-6CWQ06FN-M3, STPS660CSFY uniquely combines dual 3 A channels, 60 V rating, 1.5 °C/W thermal resistance, and AEC-Q101 qualification in a 3.6 × 6.5 mm surface-mount package - making it the only option meeting all four criteria for next-generation compact automotive DC/DC designs.
Availability
STPS660CSFY is available at Aetrix Electronics and suitable for automotive engine control units, 48 V mild hybrid DC/DC converters, and electric power steering auxiliary rails requiring stable component supply across extended temperature and lifecycle demands.
Supply support for STPS660CSFY 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 designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.
STPS660CSFY belongs to ST's automotive-grade Schottky rectifier product line, engineered specifically for high-temperature, high-reliability power conversion in engine bay and chassis-mounted electronic control units.
FAQ
Is STPS660CSFY suitable for synchronous rectification in 48 V automotive DC/DC converters?
Yes. STPS660CSFY's 60 V VRRM rating, 0.50 V typical VF at 125 °C, and dual-diode configuration make it appropriate for secondary-side synchronous rectification in 48 V/12 V bi-directional converters. Its low forward voltage minimizes conduction losses, and AEC-Q101 qualification ensures reliability under automotive thermal and vibration stress.
What is the recommended PCB layout for thermal management of STPS660CSFY?
ST recommends connecting the exposed metal tab (cathode) to ≥6 cm² of 70 µm copper on FR4 via multiple thermal vias to internal ground planes. Per Figure 7 in DS13525, Rth(j-a) drops from ~60 °C/W (no copper) to ~25 °C/W with 6 cm² copper area - essential to maintain Tj ≤ 175 °C at 6 A total device current.
Does STPS660CSFY have a specified reverse recovery time (trr)?
No - as a Schottky rectifier, STPS660CSFY has no minority-carrier storage and therefore no defined reverse recovery time. Its switching behavior is governed by junction capacitance (Cj ≈ 300 pF at VR = 5 V), enabling zero-recovery-loss operation in high-frequency DC/DC topologies up to 1 MHz, unlike PN junction rectifiers.
Can STPS660CSFY replace a single 6 A Schottky diode in freewheeling applications?
No - STPS660CSFY is a dual 3 A device with common cathode, not a single 6 A diode. It supports two independent 3 A paths sharing one cathode node. For true 6 A single-path freewheeling, a discrete 6 A Schottky (e.g., STPS6H100CG) is required; using STPS660CSFY in parallel requires careful current sharing design and separate anode routing.
STPS660CSFY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-277, 3-PowerDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 610 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 19 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPS660CSFY FAQ
1.How can I place an order for STPS660CSFY through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS660CSFY 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 STPS660CSFY reliable?
The price and inventory of STPS660CSFY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS660CSFY is usually 5 days.
3.What payment methods are accepted for STPS660CSFY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS660CSFY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS660CSFY?
STPS660CSFY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS660CSFY 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 STPS660CSFY?
For technical support, including STPS660CSFY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS660CSFY requirements.
6.How does Aetrix verify that STPS660CSFY is sourced from the original manufacturer or authorized distributors?
All STPS660CSFY 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 STPS660CSFY meets industry standards.
7.What is the process for return or replacement of STPS660CSFY?
All STPS660CSFY units undergo pre-shipment inspection (PSI). If there is an issue with STPS660CSFY, 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 STPS660CSFY part is unused and in its original packaging.
Return procedure for STPS660CSFY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS660CSFY Tags
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