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STMicroelectronics STPS20H100CG-TR
- Part No.:
- STPS20H100CG-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS20H100CG-TR.pdf
- Description:
- DIODE ARRAY SCHOT 100V 10A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,556
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Product details
Overview
STPS20H100CG-TR from STMicroelectronics is a 100 V, 2 × 10 A dual center-tap Schottky rectifier in D²PAK (TO-263) package, optimized for high-frequency switch-mode power supplies. It delivers typ. 0.59 V forward voltage at 10 A and 125 °C, supports 175 °C max junction temperature, and features avalanche rating and 2000 VRMS insulation capability in insulated variants - used in notebook adapters and on-board DC/DC converters.
For engineers reviewing the STPS20H100CG-TR datasheet, STPS20H100CG-TR pinout, STPS20H100CG-TR application, or STPS20H100CG-TR equivalent, key selection criteria include forward voltage vs. temperature trade-off, thermal resistance (Rth(j-c) = 1.6 °C/W per diode), avalanche energy handling (775 W peak), and D²PAK mounting compatibility with FR4 PCB copper area optimization.
Technical Context
This dual-center-tap Schottky rectifier integrates two independent 100 V / 10 A diodes sharing a common cathode terminal, enabling synchronous rectification in center-tapped transformer topologies. Its low Qrr and negligible reverse recovery charge minimize switching losses in 100–500 kHz SMPS designs.
The device operates up to 175 °C junction temperature with controlled leakage (<6 mA at 125 °C, VRRM), and its Rth(j-c) of 1.6 °C/W (per diode) enables efficient heat transfer to external heatsinks via the exposed tab - critical for thermally constrained LED drivers and compact AC/DC adapters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - blocks full reverse voltage in center-tapped secondary windings without breakdown. |
| IF(AV) per diode | 10 A - continuous DC current handling per anode leg under TC = 160 °C, defining thermal design margin. |
| VF (typ) | 0.59 V @ 10 A, 125 °C - directly reduces conduction loss (P ≈ 0.55×IF(AV) + 0.009×IF(RMS)²) in high-temp operation. |
| Tj(max) | +175 °C - enables operation in sealed enclosures or high-ambient industrial LED drivers without derating. |
| Rth(j-c) | 1.6 °C/W per diode - determines minimum heatsink requirement when mounted on 35 µm Cu FR4 with ≥30 cm² copper area. |
| IFSM | 250 A @ 10 ms sine - withstands inrush currents during cold-start in 65 W notebook adapters. |
| Avalanche rating | 775 W @ 10 µs pulse, Tj = 125 °C - protects against transient overvoltage in unregulated flyback secondaries. |
Pinout & Package
D²PAK (TO-263) package with isolated mounting tab (2000 VRMS insulation), 3-pin configuration: two anodes (A1, A2) and one common cathode (K). Exposed metal tab serves as cathode terminal and primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Connects to first winding half of center-tapped transformer secondary; carries up to 10 A DC. |
| A2 | Anode 2 | Connects to second winding half; electrically isolated from A1 but shares cathode return path. |
| K (Tab) | Common cathode | Exposed metal tab functions as both electrical cathode and thermal interface; must be soldered to ≥30 cm² Cu pour. |
Key Features
| Feature | Design Value |
|---|---|
| Negligible switching losses | Zero reverse recovery charge (Qrr ≈ 0) eliminates turn-off loss and EMI in 300 kHz+ DC/DC converters. |
| Avalanche rated | 775 W repetitive peak avalanche power enables robustness against transformer leakage spikes without snubbers. |
| High Tj capability | 175 °C max junction temperature allows full 10 A rating in ambient >85 °C environments like enclosed LED luminaires. |
| Low leakage at high Tj | <6 mA @ 125 °C, VRRM - prevents thermal runaway in parallel configurations and improves no-load efficiency. |
| ECOPACK®2 compliant | Meets RoHS, halogen-free, and lead-free reflow requirements for automotive and industrial end-equipment compliance. |
Applications
| Adapter Power Supply | On-Board DC/DC Converter |
|---|---|
|
Use Scenario: 65 W universal-input AC/DC adapter for notebooks and game stations with center-tapped transformer topology. IC Role / Device Role / Timing Role: Dual Schottky rectifier providing synchronous rectification on secondary side; replaces two discrete diodes with shared cathode return. Use Value: Reduces conduction loss by 35% vs. fast recovery diodes, enabling >90% efficiency at full load and <0.5 W no-load consumption. |
Use Scenario: 12 V input, 3.3 V/15 A output buck-derived DC/DC module on server motherboard or telecom card. IC Role / Device Role / Timing Role: Center-tap rectifier in forward converter secondary; handles high di/dt during MOSFET switching transitions. Use Value: Eliminates reverse recovery noise, reducing EMI filter size by 40% and enabling 500 kHz operation without snubber networks. |
| LED Driver Secondary | Industrial SMPS |
|
Use Scenario: Constant-current LED driver for high-bay lighting with 24–48 V output and 175 °C ambient rating requirement. IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback with center-tapped auxiliary winding for bias supply. Use Value: Sustains 10 A average current at 125 °C junction without derating, enabling compact heatsinkless design in IP66-rated enclosures. |
Use Scenario: 24 V/20 A industrial power supply for PLC I/O modules operating in 70 °C cabinet environments. IC Role / Device Role / Timing Role: Primary secondary-side rectifier in double-ended forward converter with active clamp. Use Value: Avalanche rating absorbs 100 V transients from relay coil de-energization, eliminating need for TVS clamping on secondary. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual center-tap Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CPH05-M3 | 50 V VRRM, 20 A total, TO-220AB package, Rth(j-c) = 1.5 °C/W, no avalanche rating | Limited to ≤50 V outputs; requires external heatsink due to non-insulated TO-220AB package | Select only for cost-sensitive 12–24 V systems where voltage margin and isolation are not required |
| ON Semiconductor MBR20100CT | 100 V VRRM, 20 A total, TO-220AB, Rth(j-c) = 1.7 °C/W, VF = 0.82 V @ 10 A, 25 °C | Higher forward drop increases conduction loss by ~1.2 W at 10 A; lacks avalanche rating and ECOPACK2 compliance | Acceptable for lower-efficiency, non-automotive applications where thermal margin exceeds 15 °C |
Compared with VS-20CPH05-M3 and MBR20100CT, STPS20H100CG-TR uniquely combines 100 V rating, 175 °C operation, avalanche ruggedness, and D²PAK surface-mount compatibility - making it the only option qualified for thermally dense, high-reliability 65 W adapter and industrial DC/DC designs.
Availability
STPS20H100CG-TR is available at Aetrix Electronics and suitable for notebook adapters, on-board DC/DC converters, and industrial SMPS requiring stable component supply with tape-and-reel packaging for automated assembly.
Supply support for STPS20H100CG-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, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.
This device belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-efficiency, high-power-density switch-mode power supplies operating above 100 kHz with stringent thermal and reliability requirements.
FAQ
What is the maximum continuous forward current per diode at 145 °C case temperature?
The STPS20H100CG-TR supports 10 A average forward current per diode at TC = 160 °C for D²PAK mounting. At TC = 145 °C, derating is not required - the 10 A rating remains valid per diode, as confirmed in Table 1 of DS1216 Rev 10. This reflects its robust thermal design for high-ambient applications.
Does the D²PAK package provide electrical isolation between the tab and PCB ground plane?
No - the D²PAK variant (STPS20H100CG-TR) has a non-insulated tab: the cathode (K) is electrically connected to the exposed metal pad. For 2000 VRMS isolation, ST offers the TO-220FPAB version (STPS20H100CFP), which uses an insulated package with dielectric coating on the mounting surface.
Can this device replace two separate 10 A Schottky diodes in a center-tap design?
Yes - STPS20H100CG-TR integrates two matched 10 A Schottky diodes with a common cathode, eliminating layout mismatch and thermal imbalance. Its dual-die construction ensures identical VF and thermal characteristics across both legs, improving current sharing and reliability versus discrete pairs.
What is the recommended minimum copper area for thermal performance on FR4 PCB?
For optimal thermal performance, ST recommends ≥30 cm² of 35 µm copper on the component side connected to the cathode tab, as shown in Figure 9 of DS1216. With this layout, Rth(j-a) drops to ~15 °C/W, enabling full 20 A device current at Tamb = 50 °C without forced air cooling.
STPS20H100CG-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
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 770 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 4.5 µA @ 100 V
- Operating Temperature - Junction:
- 175°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
STPS20H100CG-TR FAQ
1.How can I place an order for STPS20H100CG-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS20H100CG-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 STPS20H100CG-TR reliable?
The price and inventory of STPS20H100CG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS20H100CG-TR is usually 5 days.
3.What payment methods are accepted for STPS20H100CG-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS20H100CG-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS20H100CG-TR?
STPS20H100CG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS20H100CG-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 STPS20H100CG-TR?
For technical support, including STPS20H100CG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS20H100CG-TR requirements.
6.How does Aetrix verify that STPS20H100CG-TR is sourced from the original manufacturer or authorized distributors?
All STPS20H100CG-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 STPS20H100CG-TR meets industry standards.
7.What is the process for return or replacement of STPS20H100CG-TR?
All STPS20H100CG-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS20H100CG-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 STPS20H100CG-TR part is unused and in its original packaging.
Return procedure for STPS20H100CG-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS20H100CG-TR Tags
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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
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
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BAS40-04LT1G
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MMBD1503-TP
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