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STMicroelectronics STPR620CT
- Part No.:
- STPR620CT
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
STPR620CT.pdf
- Description:
- DIODE ARRAY GP 200V 3A TO-220
- Quantity:
- Payment:
- Shipping:
Inventory:4,988
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Product details
Overview
STPR620CT from STMicroelectronics is a dual-center-tap ultra-fast recovery rectifier diode in TO-220AB package, rated for 200 V repetitive peak reverse voltage, 3 A average forward current per diode at Tc = 125°C, and 30 ns maximum reverse recovery time. It delivers low conduction losses (VF ≤ 0.99 V at 3 A, 125°C) and high surge capability (30 A, 10 ms sine), suited for SMPS output rectification and high-frequency DC–DC converters.
For engineers reviewing the STPR620CT datasheet, STPR620CT pinout, STPR620CT application, or STPR620CT equivalent, key selection criteria include its center-tap dual-diode topology, 2000 V DC insulation rating (in insulated variants), thermal resistance of 6.5 °C/W (junction-to-case, per diode), and suitability for low-voltage, high-frequency freewheeling and polarity protection circuits.
Technical Context
This device integrates two ultra-fast recovery diodes sharing a common cathode terminal (center-tap configuration), enabling full-wave rectification without external wiring. Its silicon construction and optimized doping profile yield low trr (30 ns max) and low Qrr, minimizing switching losses in hard-switched topologies.
The TO-220AB package provides direct metal heatsink mounting with 0.8 Nm recommended torque and 6.5 °C/W thermal resistance per diode. The device operates up to 150°C junction temperature and supports 2000 V DC isolation when used in insulated variants (e.g., STPR620CF), though STPR620CT itself is non-insulated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage per diode; defines safe operating range in rectifier bridges and flyback snubbers. |
| IF(AV) | 3 A per diode at Tc = 125°C - Continuous DC output current capability under heatsink-cooled conditions. |
| trr | 30 ns max - Ultra-fast recovery ensures minimal switching loss and EMI in 100 kHz–500 kHz SMPS designs. |
| VF | 0.99 V max at IF = 3 A, Tj = 125°C - Low forward drop reduces conduction loss and improves efficiency at rated load. |
| IFSM | 30 A (10 ms sine) - Robust surge handling supports inrush current during power-up and fault transients. |
| Rth(j-c) | 6.5 °C/W per diode - Enables thermal design with standard TO-220 heatsinks for continuous 3 A operation. |
Pinout & Package
STPR620CT uses the TO-220AB package: 3-terminal, non-insulated, through-hole mount with metal tab (cathode) and two anode leads (A1, A2). Mounting torque: 0.8 Nm recommended, 1.0 Nm max.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first diode leg; connects to transformer secondary or input rail in center-tap rectifier. |
| A2 | Anode 2 | Input terminal for second diode leg; completes full-wave rectification path with A1. |
| K | Common Cathode | Output node for rectified DC; serves as shared return path and must be heatsinked via metal tab. |
Key Features
| Feature | Design Value |
|---|---|
| Dual center-tap diode structure | Enables compact full-wave rectification without external center-tap wiring or discrete diode pairing. |
| Ultra-fast recovery (trr ≤ 30 ns) | Reduces switching loss and di/dt-induced ringing in high-frequency converters (>100 kHz). |
| Low VF (0.99 V @ 3 A, 125°C) | Lowers conduction loss by ~15% vs. standard fast recovery diodes, improving system efficiency at mid-load. |
| High surge rating (30 A, 10 ms) | Withstands repeated cold-start surges and transient overloads without degradation in industrial SMPS. |
Applications
| AC/DC Adapter Output Rectification | DC–DC Converter Freewheeling |
|---|---|
Use Scenario: 12 V/5 A offline AC/DC adapter for networking equipment using center-tap transformer and synchronous rectification constraints. IC Role / Device Role / Timing Role: Dual-anode, common-cathode rectifier providing full-wave output with minimal voltage drop and EMI. Use Value: 30 ns trr prevents cross-conduction loss during commutation; 0.99 V VF maintains >87% efficiency at full load. | Use Scenario: 48 V to 12 V isolated buck-derived DC–DC module in telecom power shelf with tight thermal envelope. IC Role / Device Role / Timing Role: Freewheeling diode across primary-side switch, conducting during off-time with low reverse recovery charge. Use Value: 30 ns trr and low Qrr reduce voltage overshoot on MOSFET drain, eliminating need for snubber networks. |
| Low-Voltage Inverter Output Stage | Polarity Protection Circuit |
Use Scenario: 24 V battery-powered motor inverter driving brushed DC motors in portable tools. IC Role / Device Role / Timing Role: Output rectifier clamping inductive kickback during PWM switching, protecting H-bridge switches. Use Value: 30 A IFSM handles motor stall currents; 150°C Tj rating allows operation in sealed enclosures up to 85°C ambient. | Use Scenario: Reverse-polarity protection in automotive infotainment head unit powered from vehicle battery (12 V ±15%). IC Role / Device Role / Timing Role: Series-connected center-tap diode pair acting as low-loss bidirectional clamp during miswiring events. Use Value: Dual-diode symmetry ensures equal forward drop in both directions; 200 V VRRM exceeds load dump transients (ISO 7637-2 Pulse 5a). |
Availability
STPR620CT is available at Aetrix Electronics and suitable for AC/DC adapters, DC–DC converters, low-voltage inverters, and polarity protection circuits requiring stable component supply and legacy-compatible TO-220AB footprint.
Supply support for STPR620CT 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.
The STPR series belongs to ST's high-reliability power rectifier product line, engineered specifically for high-efficiency, high-frequency switched-mode power conversion where low trr and low VF are critical.
FAQ
What is the pin configuration of STPR620CT?
STPR620CT has three terminals: Anode 1 (A1), Anode 2 (A2), and Common Cathode (K). The metal tab is electrically connected to K and serves as the thermal path. Pin order (viewed from front, leads down) is A1–K–A2. This center-tap arrangement enables full-wave rectification without external interconnects.
Is STPR620CT insulated or non-insulated?
STPR620CT uses the standard TO-220AB package and is non-insulated - the metal tab (K) is electrically connected to the cathode. For insulated applications, STMicroelectronics offers STPR620CF (ISOWATT220AB, 2000 V DC isolation) and STPR620CFP (TO-220FPAB, same isolation rating).
How does STPR620CT compare to standard fast recovery diodes?
Compared to general-purpose fast recovery diodes (e.g., FR107, trr ≈ 500 ns), STPR620CT achieves 30 ns trr - over 15× faster - reducing switching loss and EMI. Its VF is also lower (0.99 V vs. ~1.3 V at 3 A), and it features dual-diode integration, eliminating layout complexity and parasitic inductance from discrete pairing.
Can STPR620CT replace STTH8R06 in a 200 V design?
No - STTH8R06 is a single 600 V, 8 A ultrafast diode. STPR620CT is a dual 200 V, 3 A center-tap device with different topology, voltage rating, and current sharing. Direct replacement would require circuit redesign to accommodate dual-anode architecture and reduced VRRM; it is not a drop-in substitute.
STPR620CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 990 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 30 ns
- Current - Reverse Leakage @ Vr:
- 50 µA @ 200 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
STPR620CT FAQ
1.How can I place an order for STPR620CT through Aetrix?
Please submit a Request for Quotation (RFQ) for STPR620CT 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 STPR620CT reliable?
The price and inventory of STPR620CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPR620CT is usually 5 days.
3.What payment methods are accepted for STPR620CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPR620CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPR620CT?
STPR620CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPR620CT 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 STPR620CT?
For technical support, including STPR620CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPR620CT requirements.
6.How does Aetrix verify that STPR620CT is sourced from the original manufacturer or authorized distributors?
All STPR620CT 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 STPR620CT meets industry standards.
7.What is the process for return or replacement of STPR620CT?
All STPR620CT units undergo pre-shipment inspection (PSI). If there is an issue with STPR620CT, 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 STPR620CT part is unused and in its original packaging.
Return procedure for STPR620CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPR620CT Tags
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