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STMicroelectronics STPS20SM60CR
- Part No.:
- STPS20SM60CR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
STPS20SM60CR.pdf
- Description:
- DIODE ARRAY SCHOTT 60V 10A I2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:990
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Product details
Overview
STPS20SM60CR from STMicroelectronics is a dual common-cathode Schottky rectifier in I2PAK package, rated for 2 × 10 A average forward current per diode, 60 V repetitive peak reverse voltage, and 0.370 V typical forward voltage at 125 °C - optimized for high-frequency switch-mode power supplies in notebook and desktop adapters.
For engineers reviewing the STPS20SM60CR datasheet, STPS20SM60CR pinout, STPS20SM60CR application, or STPS20SM60CR equivalent, this device delivers low conduction loss (P = 0.375 × IF(AV) + 0.0135 × IF²(RMS)), avalanche-rated ruggedness (13.6 kW peak), and thermal coupling-aware junction-to-case resistance (0.85 °C/W total) critical for dual-diode thermal management in compact AC/DC adapters.
Technical Context
The STPS20SM60CR integrates two independent Schottky diodes sharing a common cathode terminal, enabling synchronous rectification or dual-output DC-DC conversion. Its low VF (0.370–0.510 V across temperature and current) and fast recovery (no minority-carrier storage) support >100 kHz operation without reverse recovery loss.
Thermal design requires joint consideration of per-diode power dissipation and inter-diode coupling: ΔTj(diode 1) = P₁ × Rth(j-c) + P₂ × Rth(c), where Rth(c) = 0.2 °C/W and total Rth(j-c) = 0.85 °C/W confirms shared case thermal path between diodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) per diode | 10 A at Tc = 140 °C - supports sustained 20 A total output in dual-channel adapter designs with heatsink mounting. |
| VRRM | 60 V - suitable for secondary-side rectification in 19–24 V output SMPS with margin against transient overshoot. |
| VF (typ) | 0.370 V at 10 A, 125 °C - reduces conduction loss to ~3.7 W per diode at full load, improving adapter efficiency by ≥1.2% vs. standard Schottkys. |
| IFSM | 300 A (10 ms sinusoidal) - withstands inrush currents during cold-start of laptop power supplies. |
| Tj(max) | 150 °C - enables operation under high ambient conditions (e.g., enclosed game station adapters) with derated current above 125 °C. |
| PARM | 13600 W (tp = 1 µs) - provides robustness against short-duration voltage spikes in unregulated flyback outputs. |
Pinout & Package
Package: I2PAK (TO-263AB), surface-mount with isolated tab for thermal conduction. Dimensions per Table 7: D = 8.95–9.35 mm, E = 10.00–10.40 mm, L = 13–14 mm; recommended torque 0.4–0.6 N·m when mounted to heatsink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first diode channel; routed separately to avoid cross-conduction in dual-output topologies. |
| A2 | Anode 2 | Input terminal for second diode channel; electrically isolated from A1 but thermally coupled via shared case. |
| K | Common Cathode | Single output node for both diodes; must be routed with low-inductance copper pour to minimize switching noise in high-frequency SMPS. |
Key Features
| Feature | Design Value |
|---|---|
| Avalanche-rated operation | 13.6 kW peak avalanche power (tp = 1 µs) validated per AN1768/AN2025 - eliminates need for external clamping in cost-sensitive adapter designs. |
| Low thermal resistance coupling | Rth(c) = 0.2 °C/W between diodes - enables accurate thermal modeling when both channels operate simultaneously at different loads. |
| High-frequency suitability | No reverse recovery charge (Qrr ≈ 0) - eliminates switching loss and EMI associated with PN diodes in >200 kHz flyback converters. |
| ECOPACK® compliance | Meets UL94 V0 flammability rating and RoHS/REACH requirements - supports global regulatory certification for consumer power adapters. |
Applications
| Notebook Adapter Secondary Rectification | Desktop PC Power Supply Output Stage |
|---|---|
Use Scenario: Dual-rail 12 V / 5 V output in compact 65 W notebook adapter with active clamp flyback topology. IC Role / Device Role / Timing Role: Dual common-cathode Schottky rectifier replacing two discrete diodes to reduce PCB area and thermal footprint. Use Value: 0.370 V VF at 125 °C cuts conduction loss by 28% versus legacy 0.52 V parts, enabling 92.4% efficiency at full load per DOE VI. |
Use Scenario: +12 V and +5 V synchronous rectification in ATX main transformer secondary of 300 W desktop PSU. IC Role / Device Role / Timing Role: High-current dual Schottky handling combined 20 A load with shared cathode return path. Use Value: 300 A IFSM rating absorbs startup surges without derating; 150 °C Tj(max) sustains operation under chassis airflow restriction. |
| Game Console Power Module | USB-C PD Fast Charger Output |
Use Scenario: 19 V/3.42 A output stage in sealed game station adapter with limited heatsinking. IC Role / Device Role / Timing Role: Primary secondary-side rectifier managing dynamic load steps up to 200% for GPU burst power. Use Value: Avalanche energy rating ensures reliability during repeated 80 V transients on 19 V rail - no external TVS required. |
Use Scenario: Dual-output 9 V/3 A and 15 V/3 A rails in 45 W USB-C PD charger using quasi-resonant flyback. IC Role / Device Role / Timing Role: Common-cathode dual Schottky delivering tightly regulated dual voltages with single output filter. Use Value: 0.85 °C/W total Rth(j-c) allows 10 A/channel operation at 125 °C junction temp with minimal heatsink mass. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CPH06-M3 | Same 60 V VRRM, 2 × 10 A IF(AV), but TO-220AC package (non-isolated tab); VF = 0.52 V @ 10 A, 125 °C. | Lacks avalanche rating; requires external clamping in unregulated flyback; higher conduction loss increases thermal stress. | Select only if mechanical compatibility with existing TO-220 footprint is mandatory and surge immunity is handled externally. |
| ON Semiconductor MBR2060CT | Dual common-cathode TO-220AB; VF = 0.72 V @ 10 A, 25 °C; no avalanche rating; Tj(max) = 175 °C. | Higher VF increases conduction loss by ~42% at 125 °C; lacks pulse avalanche validation per ST's AN1768 methodology. | Acceptable for lower-efficiency, non-avalanche-critical designs where 175 °C junction rating offsets thermal margin loss. |
Compared with VS-20CPH06-M3 and MBR2060CT, STPS20SM60CR uniquely combines low VF (0.370 V), certified avalanche ruggedness (13.6 kW), and I2PAK thermal coupling data - making it the only option supporting high-efficiency, compact, and transient-robust dual-output adapter designs without added protection circuitry.
Availability
STPS20SM60CR is available at Aetrix Electronics and suitable for notebook adapters, desktop PC power supplies, game console power modules, and USB-C PD fast chargers requiring stable component supply and consistent thermal performance across production batches.
Supply support for STPS20SM60CR 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 silicon solutions for automotive, industrial, and consumer markets since 1987.
The STPS20SM60CR belongs to ST's Power Schottky Rectifier product line, engineered specifically for high-frequency, high-efficiency AC/DC and DC/DC conversion in space-constrained consumer power adapters.
FAQ
What is the maximum continuous current per diode at 100 °C case temperature?
At Tc = 100 °C, the STPS20SM60CR supports 13.5 A per diode (derated from 10 A at 140 °C per Table 2). This is calculated using linear interpolation of the derating curve in Figure 3, confirming 13.5 A average forward current remains within safe operating limits without exceeding 150 °C junction temperature.
Can STPS20SM60CR replace a single 20 A Schottky in a single-output design?
No - STPS20SM60CR contains two independent anodes (A1, A2) sharing one cathode (K); it is not rated for 20 A single-diode operation. Its absolute rating is 10 A per diode. Using both anodes in parallel without current-sharing resistors risks thermal imbalance and premature failure due to parameter mismatch.
Is the I2PAK package electrically isolated?
No - the I2PAK package used in STPS20SM60CR has a conductive tab (pin K) that is electrically connected to the common cathode. The tab must be mounted to a grounded or low-impedance return plane; isolation requires external insulating hardware or a different package variant like D2PAK with isolated tab option.
How does the 0.2 °C/W coupling resistance affect thermal design?
The 0.2 °C/W Rth(c) quantifies thermal crosstalk between diodes: power dissipated in Diode 2 raises Diode 1's junction temperature by 0.2 × P₂. This must be included in worst-case thermal modeling (e.g., Diode 1 at 10 A, Diode 2 at 5 A → +1 °C offset), ensuring neither diode exceeds 150 °C junction limit under simultaneous load.
STPS20SM60CR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 645 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 40 µA @ 60 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- I2PAK
STPS20SM60CR FAQ
1.How can I place an order for STPS20SM60CR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS20SM60CR 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 STPS20SM60CR reliable?
The price and inventory of STPS20SM60CR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS20SM60CR is usually 5 days.
3.What payment methods are accepted for STPS20SM60CR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS20SM60CR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS20SM60CR?
STPS20SM60CR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS20SM60CR 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 STPS20SM60CR?
For technical support, including STPS20SM60CR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS20SM60CR requirements.
6.How does Aetrix verify that STPS20SM60CR is sourced from the original manufacturer or authorized distributors?
All STPS20SM60CR 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 STPS20SM60CR meets industry standards.
7.What is the process for return or replacement of STPS20SM60CR?
All STPS20SM60CR units undergo pre-shipment inspection (PSI). If there is an issue with STPS20SM60CR, 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 STPS20SM60CR part is unused and in its original packaging.
Return procedure for STPS20SM60CR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS20SM60CR Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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