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STMicroelectronics STPS20M60SG-TR
- Part No.:
- STPS20M60SG-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS20M60SG-TR.pdf
- Description:
- DIODE SCHOTTKY 60V 20A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,185
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Product details
Overview
STPS20M60SG-TR from STMicroelectronics is a single silicon Schottky rectifier diode in D2PAK (TO-263) package, designed for high-frequency switch-mode power supplies. It delivers 20 A average forward current at 135 °C case temperature, 60 V repetitive peak reverse voltage, and typ. 0.365 V forward voltage drop at 125 °C and 20 A - enabling high-efficiency operation in notebook, desktop, and game station AC/DC adapters.
For engineers reviewing the STPS20M60SG-TR datasheet, STPS20M60SG-TR pinout, STPS20M60SG-TR application, or STPS20M60SG-TR equivalent, key selection criteria include low conduction loss (VF ≤ 0.505 V @ 125 °C/20 A), avalanche ruggedness (80 V VARM, 26.4 kW PARM), thermal resistance (1.0 °C/W j-c), and D2PAK surface-mount compatibility with tape-and-reel delivery.
Technical Context
The STPS20M60SG-TR operates as a unidirectional power rectifier with zero recovery time and no minority-carrier storage, eliminating switching losses in high-frequency topologies. Its Schottky barrier structure enables fast turn-on and minimal reverse recovery charge (QRR ≈ 0), critical for >100 kHz SMPS designs.
Thermally, it relies on conduction cooling via the tab-mounted cathode terminal, with junction-to-case thermal resistance fixed at 1.0 °C/W. Avalanche rating (VARM = 80 V, IAR < 99 A, tp < 1 µs) supports transient overvoltage resilience without external snubbers in adapter primary-side rectification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 20 A at Tc = 135 °C - defines maximum continuous DC output current in thermally managed adapter PCB layouts |
| VRRM | 60 V - sets maximum clamped input voltage tolerance in universal-input (90–264 VAC) offline SMPS secondary-side rectification |
| VF (typ) | 0.365 V @ 125 °C / 20 A - directly reduces conduction loss to ~7.3 W (P ≈ 0.380×IF + 0.0063×IF² RMS), improving full-load efficiency |
| Tj (max) | 150 °C - specifies absolute junction temperature limit before thermal runaway; requires ≥10 cm² copper pour under tab for safe 20 A operation |
| Rth(j-c) | 1.0 °C/W - quantifies thermal path efficiency from die to mounting surface; enables accurate heatsink-less thermal design in space-constrained adapters |
| IFSM | 600 A @ tp = 10 ms - supports inrush current handling during cold-start of 65–90 W AC/DC adapters without fuse tripping |
| VARM | 80 V @ tp < 1 µs - defines peak non-repetitive avalanche voltage capability, allowing robustness against line transients up to 80 V without failure |
Pinout & Package
STPS20M60SG-TR uses a 3-terminal D2PAK (TO-263) surface-mount package with isolated tab (cathode). The molded epoxy body meets UL94 V0 flammability rating and is optimized for conduction cooling via the large metal tab soldered to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (exposed metal) | Cathode (K) | Primary thermal and electrical connection point; must be soldered to ≥10 cm² internal/external copper for rated 20 A operation |
| Lead 1 | Anode (A) | Input terminal for AC/DC converter secondary winding; routed with low-inductance trace to minimize ringing |
| Lead 2 | No Connect (NC) | Internal die pad not electrically connected; left floating or tied to ground only if required by mechanical layout |
Key Features
| Feature | Design Value |
|---|---|
| Avalanche-rated operation | Withstands 80 V, 99 A transient pulses (tp < 1 µs) without degradation - eliminates need for external TVS in cost-sensitive adapter designs |
| Low VF at high temperature | 0.365 V typ. @ 125 °C/20 A - maintains <1% efficiency drop from 25 °C to 125 °C, critical for compact sealed adapters |
| High surge current capability | 600 A non-repetitive peak (10 ms sine) - accommodates repeated cold-start surges in multi-output laptop chargers |
| D2PAK tape-and-reel packaging | 1000-unit reel format - supports automated SMT placement in high-volume OEM adapter manufacturing lines |
| ECOPACK® environmental compliance | Halogen-free, RoHS-compliant construction - satisfies EU WEEE and China RoHS requirements for consumer electronics shipments |
Applications
| Notebook Adapter Rectification | Desktop PC Power Supply Output |
|---|---|
|
Use Scenario: Secondary-side synchronous rectification in 45–90 W GaN-based notebook adapters operating at 200–500 kHz. IC Role / Device Role / Timing Role: Unidirectional power rectifier replacing conventional Si diodes to reduce conduction loss and improve light-load efficiency. Use Value: Achieves ≥94% full-load efficiency at 19 V/3.42 A output due to 0.365 V VF at 125 °C, cutting diode dissipation by 42% vs. legacy 0.62 V parts. |
Use Scenario: +12 V and +5 V rail rectification in ATX v2.4 compliant desktop PSUs with active PFC front-end. IC Role / Device Role / Timing Role: High-current freewheeling diode in LLC resonant converter secondary stage. Use Value: Enables 20 A continuous current per rail with <1.0 °C/W thermal resistance, supporting dual-rail parallel configurations without forced air cooling. |
| Game Console Power Adapter | USB-C PD Fast Charger Output Stage |
|
Use Scenario: 20 V/4.5 A output rectification in compact 90 W game station adapters with tight thermal envelopes. IC Role / Device Role / Timing Role: Main output rectifier handling both steady-state and burst-mode load transients. Use Value: Avalanche rating absorbs 80 V line spikes during hot-plug events, preventing field failures in ungrounded consumer environments. |
Use Scenario: 20 V/5 A output rectification in programmable USB-C PD 3.0 chargers supporting variable voltage negotiation. IC Role / Device Role / Timing Role: Fixed-polarity output diode in buck-derived constant-voltage stage. Use Value: D2PAK footprint allows direct integration into 4-layer 1.6 mm PCBs with 2 oz copper, meeting IEC 62368-1 creepage/clearance requirements at 20 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CPH06-M3 | Same 20 A/60 V rating, but VF = 0.52 V @ 125 °C/20 A; Rth(j-c) = 1.5 °C/W; TO-220AC package | Requires heatsink for 20 A operation; unsuitable for D2PAK-reflow assembly | Select when through-hole assembly and lower cost outweigh thermal performance needs |
| ON Semiconductor SB2060CT | 20 A/60 V dual common-cathode Schottky; VF = 0.54 V @ 25 °C/10 A; D2PAK package | Offers dual-diode configuration for center-tapped transformer designs; higher VF increases conduction loss | Choose for dual-output flyback topologies needing shared cathode, accepting 12% higher loss at full load |
Compared with VS-20CPH06-M3 and SB2060CT, STPS20M60SG-TR provides the lowest VF (0.365 V) and best thermal resistance (1.0 °C/W) in D2PAK, making it optimal for high-density, high-efficiency single-output adapters where board space and thermal headroom are constrained.
Availability
STPS20M60SG-TR is available at Aetrix Electronics and suitable for notebook adapters, desktop PC power supplies, and game console chargers requiring stable component supply, tape-and-reel SMT compatibility, and long-term industrial lifecycle support.
Supply support for STPS20M60SG-TR 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 analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
This device belongs to ST's STPS Schottky rectifier product line, engineered specifically for high-efficiency, high-frequency AC/DC conversion in compact power adapters - emphasizing low VF, avalanche ruggedness, and surface-mount thermal performance.
FAQ
Is STPS20M60SG-TR suitable for synchronous rectification circuits?
No - STPS20M60SG-TR is a passive Schottky diode, not a synchronous rectifier IC or MOSFET driver. It functions as a self-commutating rectifier in flyback, LLC, or forward converters where gate control is unnecessary. For synchronous rectification, discrete MOSFETs or dedicated SR controllers (e.g., STSR3) must be used alongside this diode's replacement.
What is the maximum PCB copper area required under the tab for 20 A continuous operation?
At ambient temperature ≤50 °C and natural convection, ≥10 cm² of 2 oz copper (≥70 µm thickness) directly beneath the tab is required to maintain Tj ≤150 °C. With 15 cm² and 10 LFM airflow, derating to 22 A is achievable per Figure 3 in the datasheet.
Does STPS20M60SG-TR have a specified junction capacitance value?
Yes - typical junction capacitance is 1000 pF at VR = 30 mV and f = 1 MHz (Figure 9), decreasing to ~100 pF at VR = 40 V. This low Cj supports high-frequency operation (>300 kHz) with minimal capacitive switching loss and EMI generation.
Can STPS20M60SG-TR replace TO-220AB-packaged STPS20M60ST in existing designs?
Only with PCB layout revision - D2PAK (STPS20M60SG-TR) and TO-220AB (STPS20M60ST) have incompatible footprints and thermal mounting methods. D2PAK requires surface-mount reflow and large copper pads; TO-220AB needs through-hole holes and mechanical screw mounting. Electrical specs are identical, but mechanical integration is not drop-in.
STPS20M60SG-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 565 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 125 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
- Operating Temperature - Junction:
- 150°C (Max)
STPS20M60SG-TR FAQ
1.How can I place an order for STPS20M60SG-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS20M60SG-TR 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 STPS20M60SG-TR reliable?
The price and inventory of STPS20M60SG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS20M60SG-TR is usually 5 days.
3.What payment methods are accepted for STPS20M60SG-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS20M60SG-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS20M60SG-TR?
STPS20M60SG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS20M60SG-TR 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 STPS20M60SG-TR?
For technical support, including STPS20M60SG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS20M60SG-TR requirements.
6.How does Aetrix verify that STPS20M60SG-TR is sourced from the original manufacturer or authorized distributors?
All STPS20M60SG-TR 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 STPS20M60SG-TR meets industry standards.
7.What is the process for return or replacement of STPS20M60SG-TR?
All STPS20M60SG-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS20M60SG-TR, 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 STPS20M60SG-TR part is unused and in its original packaging.
Return procedure for STPS20M60SG-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS20M60SG-TR Tags
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1N4448X-TP
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