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STMicroelectronics STPS20200CT
- Part No.:
- STPS20200CT
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
STPS20200CT.pdf
- Description:
- DIODE ARR SCHOTT 200V 10A TO-220
- Quantity:
- Payment:
- Shipping:
Inventory:197
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Product details
Overview
STPS20200CT from STMicroelectronics is a dual-center-tap 200 V Schottky rectifier in TO-220AB package, rated for 2 × 10 A average forward current per diode, 0.64 V typical forward voltage at 125 °C, and 175 °C maximum junction temperature. It serves as secondary-side synchronous rectification in high-frequency switch-mode power supplies and DC–DC converters.
For engineers reviewing the STPS20200CT datasheet, STPS20200CT pinout, STPS20200CT application, or STPS20200CT equivalent, key selection criteria include low conduction loss (0.6×IF(AV) + 0.01×IF(RMS)²), negligible switching losses, insulated case (2000 V DC), and thermal resistance of 0.75 °C/W (junction-to-case, per device).
Technical Context
This dual Schottky diode integrates two independent 200 V/10 A rectifiers sharing a common cathode terminal (center-tap configuration), enabling efficient full-wave rectification without external wiring. Its low VF and absence of minority-carrier storage eliminate reverse recovery charge, making it suitable for >100 kHz operation.
The TO-220AB package provides direct metal tab thermal conduction with 0.75 °C/W junction-to-case resistance per device, while its insulated variant (TO-220FPAB) adds 2000 V DC isolation and 45 pF inter-terminal capacitance - critical for safety-isolated SMPS secondary stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse voltage each diode withstands without breakdown; defines safe operating margin in 12–48 V output SMPS designs. |
| IF(AV) | 2 × 10 A - Average forward current rating per diode at Tc = 160 °C; supports continuous 20 A total output in dual-phase or center-tap topologies. |
| VF(typ) | 0.64 V @ 10 A, 125 °C - Typical forward drop under real-world thermal conditions; directly determines conduction loss (P ≈ 6.4 W per diode at 10 A). |
| Rth(j-c) | 0.75 °C/W (per device) - Junction-to-case thermal resistance in TO-220AB; enables ~15 W dissipation per diode before exceeding 175 °C Tj at 25 °C heatsink. |
| Tj(max) | 175 °C - Maximum allowable junction temperature; allows operation in high-ambient industrial environments when properly heatsinked. |
| IR | 1.3 mA @ 125 °C, VRRM - Reverse leakage current at elevated temperature; low enough to avoid significant standby loss in offline adapters. |
Pinout & Package
STPS20200CT uses the TO-220AB package: insulated plastic body with metal tab (cathode-connected), three leads - Cathode (pin 1), Anode 1 (pin 2), Anode 2 (pin 3). The metal tab is electrically connected to the common cathode and serves as primary heat path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (Metal Surface) | Common Cathode | Electrically tied to both diodes' cathodes; must be isolated from chassis ground unless circuit topology requires shared reference; primary thermal interface. |
| Lead 1 (Left) | Anode 1 | Input terminal for first diode leg; connects to transformer center-tap or phase winding in full-wave rectifier configurations. |
| Lead 2 (Center) | Anode 2 | Input terminal for second diode leg; completes dual-anode, single-cathode topology required for center-tapped secondary rectification. |
| Lead 3 (Right) | No Connection / Mechanical Support | Unused lead in TO-220AB variant; present for mechanical stability only - not electrically bonded internally. |
Key Features
| Feature | Design Value |
|---|---|
| Low VF typ. 0.64 V @ 125 °C | Reduces conduction loss by ≥30% vs. standard silicon diodes at same current, improving efficiency in 12–24 V output SMPS. |
| 2000 V DC insulation (TO-220FPAB variant) | Enables reinforced isolation in medical/industrial AC–DC adapters without additional barrier components. |
| Extremely fast switching (no Qrr) | Eliminates reverse recovery loss and EMI spikes, allowing stable operation up to 500 kHz in resonant LLC converters. |
| ECOPACK®2 compliance | Meets RoHS, halogen-free, and lead-free soldering requirements for global industrial and consumer product certifications. |
| Thermal resistance 0.75 °C/W (per device) | Supports >15 W continuous dissipation per diode with standard 10 cm² aluminum heatsink, simplifying thermal design. |
Applications
| Server Power Supply Rectification | LED Driver Secondary Side |
|---|---|
Use Scenario: High-efficiency 48 V input, 12 V/20 A output DC–DC converter in telecom server PSU. IC Role / Device Role / Timing Role: Dual-center-tap Schottky rectifier performing synchronous full-wave rectification on transformer secondary. Use Value: 0.64 V VF reduces conduction loss by 4.2 W per diode vs. Si counterpart, lowering thermal load and enabling fanless operation. | Use Scenario: Constant-current LED driver for street lighting with 36 V output and 10 A load. IC Role / Device Role / Timing Role: Secondary-side rectifier converting high-frequency AC from flyback transformer to regulated DC bus. Use Value: Negligible switching loss eliminates EMI filtering overhead; TO-220AB mounting simplifies heatsinking on aluminum PCB. |
| Industrial PLC Power Module | USB-C PD Adapter Output Stage |
Use Scenario: 24 V/15 A isolated auxiliary supply in programmable logic controller with wide ambient range (-40 to +70 °C). IC Role / Device Role / Timing Role: Center-tap rectifier handling 100 kHz transformer output with minimal thermal derating. Use Value: 175 °C Tj(max) and -40 °C minimum Tj ensure reliable startup and operation across industrial temperature extremes. | Use Scenario: 20 V/5 A output stage in compact 100 W USB-C PD adapter using active clamp flyback topology. IC Role / Device Role / Timing Role: Low-loss secondary rectifier replacing synchronous MOSFETs in cost-sensitive designs. Use Value: Eliminates gate drive complexity and timing constraints while maintaining >94% efficiency at full load. |
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-20CPH02-M3 | Same 200 V VRRM, 2 × 10 A IF(AV), but TO-247AC package; Rth(j-c) = 0.55 °C/W; VF = 0.72 V @ 125 °C. | Higher thermal performance but larger footprint; requires different heatsink interface and layout clearance. | Select when thermal budget is tighter than board space; verify mechanical compatibility with existing TO-220AB heatsink mounts. |
| ON Semiconductor MBR20200CT | 200 V VRRM, 2 × 10 A IF(AV), TO-220AB; VF = 0.82 V @ 125 °C; Rth(j-c) = 0.9 °C/W; no ECOPACK®2 compliance. | Higher conduction loss (+0.18 V) and lower thermal efficiency; RoHS-compliant but not halogen-free. | Acceptable for cost-driven, non-certified consumer designs where efficiency >92% is sufficient and halogen-free is not mandated. |
Compared with VS-20CPH02-M3 and MBR20200CT, STPS20200CT delivers the lowest VF (0.64 V) and best balance of thermal resistance (0.75 °C/W), ECOPACK®2 compliance, and TO-220AB mechanical fit - making it optimal for space-constrained, high-efficiency industrial and LED power supplies.
Availability
STPS20200CT is available at Aetrix Electronics and suitable for server power supply rectification, LED driver secondary side, industrial PLC power modules, and USB-C PD adapter output stages requiring stable component supply and long-term industrial lifecycle support.
Supply support for STPS20200CT 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 microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STPS20200CT belongs to ST's Power Schottky Diode product line, engineered specifically for high-frequency, high-efficiency secondary-side rectification in switch-mode power supplies and LED drivers where low VF and zero Qrr are critical.
FAQ
What is the maximum continuous forward current per diode for STPS20200CT?
The STPS20200CT is rated for 10 A average forward current per diode at case temperature Tc = 160 °C in TO-220AB package. This assumes proper heatsinking and derating per Figure 1 in the datasheet; at Tc = 100 °C, the rating drops to approximately 7.5 A per diode due to thermal limits.
Is the metal tab of STPS20200CT electrically isolated?
No - the metal tab is internally connected to the common cathode terminal and is not insulated. For isolation, the TO-220FPAB variant (STPS20200CFP) must be used, which provides 2000 V DC insulation between tab and leads. Standard TO-220AB requires external insulating hardware if mounted to a grounded heatsink.
Can STPS20200CT replace a single 20 A Schottky diode in a bridge rectifier?
No - STPS20200CT is a dual-center-tap configuration (Anode1–Cathode–Anode2), not a bridge. It replaces two discrete Schottky diodes in full-wave center-tapped transformer topologies. For bridge rectification, a four-diode discrete array or dedicated bridge like STTH2002C is required.
Does STPS20200CT require a snubber circuit?
No snubber is needed for normal operation. As a Schottky diode with no reverse recovery charge (Qrr ≈ 0), it generates negligible voltage overshoot during turn-off. Snubbers may still be used for EMI suppression in ultra-low-noise designs, but they are not required for functional reliability or voltage clamping.
STPS20200CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 860 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 15 µA @ 200 V
- Operating Temperature - Junction:
- -40°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
STPS20200CT FAQ
1.How can I place an order for STPS20200CT through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS20200CT 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 STPS20200CT reliable?
The price and inventory of STPS20200CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS20200CT is usually 5 days.
3.What payment methods are accepted for STPS20200CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS20200CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS20200CT?
STPS20200CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS20200CT 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 STPS20200CT?
For technical support, including STPS20200CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS20200CT requirements.
6.How does Aetrix verify that STPS20200CT is sourced from the original manufacturer or authorized distributors?
All STPS20200CT 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 STPS20200CT meets industry standards.
7.What is the process for return or replacement of STPS20200CT?
All STPS20200CT units undergo pre-shipment inspection (PSI). If there is an issue with STPS20200CT, 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 STPS20200CT part is unused and in its original packaging.
Return procedure for STPS20200CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS20200CT Tags
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BAV99,215
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BAT54S-7-F
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BAV99LT1G
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