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STMicroelectronics STPS360AF
- Part No.:
- STPS360AF
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
STPS360AF.pdf
- Description:
- DIODE SCHOTTKY 60V 3A SOD128FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:97,528
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Product details
Overview
STPS360AF from STMicroelectronics is a 60 V, 3 A average forward current Schottky barrier rectifier in SOD128Flat package, optimized for high-frequency DC-DC converters and miniature switched-mode power supplies with low conduction loss and 175 °C junction temperature capability.
For engineers reviewing the STPS360AF datasheet, STPS360AF pinout, STPS360AF application, or STPS360AF equivalent, key selection criteria include forward voltage drop at 3 A (0.61 V typ. @ 25 °C), reverse leakage (150 µA @ 25 °C), avalanche rating (140 W @ 10 µs), thermal resistance (16 °C/W junction-to-lead), and ECOPACK®-compliant lead-free packaging.
Technical Context
This Schottky rectifier uses a planar metal-silicon junction to achieve negligible switching losses and low forward voltage, enabling high-efficiency operation in 100 kHz–1 MHz DC-DC topologies. Its 60 V repetitive peak reverse voltage and 65 A non-repetitive surge current support transient robustness in compact power stages.
The device operates across -40 °C to +175 °C junction temperature range and features avalanche-rated capability up to 140 W for 10 µs pulses at 125 °C, allowing reliable energy clamping without external snubbers in flyback or synchronous rectifier circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum repetitive reverse blocking voltage; defines usable input voltage range in buck/flyback designs |
| IF(AV) | 3 A @ TL = 140 °C - Continuous DC output current capability under real thermal mounting conditions |
| VF(typ.) | 0.61 V @ 25 °C, 3 A - Directly determines conduction loss: ~1.83 W at full load, critical for thermal design |
| IR | 150 µA @ 25 °C, 60 V - Low leakage preserves efficiency in standby and light-load modes |
| Rth(j-l) | 16 °C/W - Enables direct thermal path to PCB copper; supports >2 W dissipation with minimal lead temperature rise |
| Tj(max) | 175 °C - Allows operation in sealed enclosures or high-ambient industrial environments without derating |
| PARM | 140 W @ 10 µs - Specifies single-pulse avalanche energy handling for inductive turn-off protection |
Pinout & Package
SOD128Flat is a surface-mount, flat-lead, dual-terminal package with exposed cathode and anode pads. It provides low-profile (max. 1.03 mm height) and high thermal conductivity via direct copper contact on both leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward current entry point | Connected to input/source side; requires adequate copper pour for thermal management |
| Cathode (K) | Forward current exit / reverse-blocking terminal | Connected to output/load side; serves as primary heat-sinking interface in layout |
Key Features
| Feature | Design Value |
|---|---|
| Negligible switching losses | No reverse recovery charge (Qrr ≈ 0), eliminating turn-off loss and EMI in high-frequency SMPS |
| High junction temperature capability | Rated to 175 °C continuous operation-enables smaller heatsinks or no heatsink in 3 A applications |
| Good VF/IR trade-off | 0.61 V @ 3 A and 150 µA @ 60 V balances efficiency across load and standby conditions |
| Avalanche specification | 140 W pulse rating allows safe inductive energy absorption without external clamping diodes |
| ECOPACK® compliance | Lead-free, RoHS-compliant, UL94 V0 epoxy-meets global environmental and safety requirements |
Applications
| Server VRM Power Stage | USB-C PD Adapter Secondary Side |
|---|---|
Use Scenario: High-density 12 V → 3.3 V/5 V point-of-load conversion in server motherboards with strict thermal limits. IC Role / Device Role / Timing Role: Output rectifier in synchronous buck converter operating at 500 kHz–1 MHz. Use Value: 0.61 V forward drop reduces conduction loss by ~30% vs. standard silicon diodes, lowering board temperature rise by 12 °C at 3 A. | Use Scenario: Secondary-side rectification in compact 65 W USB-C power adapters where size and efficiency are critical. IC Role / Device Role / Timing Role: Freewheeling diode in quasi-resonant flyback topology. Use Value: 175 °C max junction temperature enables full 3 A output in 12 mm² footprint without forced air cooling. |
| Industrial PLC Power Supply | Automotive Infotainment DC-DC Module |
Use Scenario: 24 V input DC-DC conversion for I/O modules operating in ambient temperatures up to 85 °C. IC Role / Device Role / Timing Role: Input rectifier in isolated forward converter with wide input voltage tolerance. Use Value: 60 V VRRM and 65 A surge rating withstand 40 V transients per ISO 7637-2, eliminating need for TVS clamping. | Use Scenario: 12 V → 5 V/3.3 V conversion in head unit power management with vibration and thermal cycling exposure. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in secondary-side LLC resonant converter. Use Value: Avalanche rating absorbs inductive kickback during cold-crank events (6 V–16 V input dips), preventing failure without added protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor SB360 | Same 60 V VRRM, 3 A IF(AV), but VF = 0.72 V typ. @ 3 A; Rth(j-l) = 20 °C/W | Higher conduction loss (+0.33 W) and reduced thermal margin in confined layouts | Prefer when cost sensitivity outweighs efficiency and thermal performance |
| Vishay VSSAF360-M3/5AT | Identical SOD128Flat package, 60 V/3 A rating, VF = 0.60 V typ., but IR = 250 µA @ 25 °C | Higher leakage may impact light-load efficiency in always-on systems | Prefer when footprint compatibility and VF matching are prioritized over leakage-critical standby operation |
Compared with SB360 and VSSAF360-M3/5AT, STPS360AF delivers the lowest combined conduction loss and thermal resistance while maintaining industry-leading leakage control-making it optimal for thermally constrained, high-efficiency 3 A DC-DC stages.
Availability
STPS360AF is available at Aetrix Electronics and suitable for server VRMs, USB-C PD adapters, industrial PLC power supplies, and automotive infotainment DC-DC modules requiring stable component supply and long-term manufacturability.
Supply support for STPS360AF 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 analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.
The STPS series targets high-efficiency power conversion, with STPS360AF specifically engineered for compact, high-frequency Schottky rectification in space-constrained and thermally demanding applications.
FAQ
What is the maximum allowable PCB copper area for optimal thermal performance of STPS360AF?
Per Figure 8 in the datasheet, thermal resistance junction-to-ambient drops from ~100 °C/W (no copper) to ~45 °C/W with 2 cm² of 35 µm copper per lead on FR4. For full 3 A operation, ≥4 cm² total copper (2 cm² per lead) is recommended to maintain Tj < 125 °C at 50 °C ambient.
Does STPS360AF require a heatsink in typical 3 A applications?
No heatsink is required if PCB layout provides ≥4 cm² of 35 µm copper connected directly to both leads. With Rth(j-l) = 16 °C/W and PD ≈ 1.83 W at 3 A, lead temperature rise is ~29 °C above ambient-well within safe limits for standard FR4 boards.
Can STPS360AF replace a standard PN-junction rectifier in an existing 60 V design?
Yes-STPS360AF is a direct drop-in replacement for 60 V, 3 A PN rectifiers like 1N5822, offering lower VF (0.61 V vs. 0.9 V), zero Qrr, and higher Tj(max) (175 °C vs. 125 °C), resulting in measurable efficiency and thermal improvement without circuit modification.
Is STPS360AF suitable for automotive AEC-Q101 qualified applications?
No-STPS360AF is not AEC-Q101 qualified. While it operates from -40 °C to +175 °C and meets industrial reliability standards, it lacks the stress testing, lot traceability, and failure analysis reporting required for automotive qualification. Use ST's AEC-Q101-certified equivalents (e.g., STPS360A-TR) for automotive designs.
STPS360AF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SOD-128
- 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:
- 150 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD128Flat
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPS360AF FAQ
1.How can I place an order for STPS360AF through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS360AF 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 STPS360AF reliable?
The price and inventory of STPS360AF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS360AF is usually 5 days.
3.What payment methods are accepted for STPS360AF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS360AF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS360AF?
STPS360AF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS360AF 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 STPS360AF?
For technical support, including STPS360AF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS360AF requirements.
6.How does Aetrix verify that STPS360AF is sourced from the original manufacturer or authorized distributors?
All STPS360AF 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 STPS360AF meets industry standards.
7.What is the process for return or replacement of STPS360AF?
All STPS360AF units undergo pre-shipment inspection (PSI). If there is an issue with STPS360AF, 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 STPS360AF part is unused and in its original packaging.
Return procedure for STPS360AF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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