Diodes Incorporated STPR1620
- Part No.:
- STPR1620
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
STPR1620.pdf
- Description:
- DIODE ARRAY GP 200V 8A TO220AB
- Quantity:
- Payment:

- Shipping:

Inventory:3,559
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Product details
Overview
STPR1620 from Diodes Incorporated is a 16A dual-leg super-fast rectifier diode in TO220AB package, rated for 200V peak reverse voltage, 8A average current per leg (16A total), 1.1V forward voltage at 8A/25°C, and 30ns reverse recovery time - deployed in high-frequency DC-DC converters and switched-mode power supplies where fast switching and low conduction loss are critical.
For engineers reviewing the STPR1620 datasheet, STPR1620 pinout, STPR1620 application, or STPR1620 equivalent, key selection criteria include verified 200V VRRM, 30ns tRR, thermal resistance of 3°C/W (J-to-case), 125A IFSM, and RoHS-compliant matte tin-plated leads suitable for lead-free reflow.
Technical Context
This dual-common-cathode super-fast rectifier integrates two independent 200V/8A legs in a single TO220AB thermally optimized package. Its glass-passivated die construction ensures stable reverse leakage (<10µA at 200V/25°C) and robust surge handling (125A non-repetitive).
The device operates across –55°C to +150°C junction temperature range with typical junction-to-case thermal resistance of 3°C/W when mounted on a 75mm × 75mm × 1.8mm copper heatsink, enabling high-power density SMPS designs without forced air cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - blocks up to 200V reverse voltage per leg without breakdown |
| IO (per leg) | 8 A - continuous average forward current rating per anode leg at TC = 100°C |
| tRR | 30 ns - enables efficient operation in >100 kHz DC-DC topologies with minimal switching loss |
| VF @ 8A/25°C | 1.10 V - low conduction loss reduces heat generation in high-current output stages |
| IR @ 200V/25°C | 10 µA - low leakage preserves efficiency in standby and light-load conditions |
| RθJC | 3 °C/W - allows direct heatsink mounting for thermal management in compact industrial PSUs |
| IFSM | 125 A - withstands transient inrush currents during cold-start or fault events |
Pinout & Package
Package: TO220AB (Type WX), molded green plastic (UL 94V-0), matte tin-plated leads, 1.927 g weight, polarity shown in datasheet diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Lead 1) | Input terminal for first rectifier leg | Accepts AC or switching node input; electrically isolated from Anode 2 |
| Anode 2 (Lead 2) | Input terminal for second rectifier leg | Enables dual-output or interleaved converter configurations |
| Cathode (Tab) | Common output terminal (electrically connected to metal tab) | Serves as primary thermal path and DC output node; must be electrically insulated if floating ground required |
Key Features
| Feature | Design Value |
|---|---|
| Super-fast switching (tRR = 30 ns) | Reduces turn-off loss and EMI in high-frequency SMPS (>100 kHz) |
| Glass passivated die | Enhances long-term reliability under thermal cycling and humidity stress |
| 200V peak reverse voltage rating | Supports 48V–400V bus architectures with margin for voltage spikes |
| Low forward voltage (1.10 V @ 8A) | Lowers conduction loss by ~15% vs. standard fast rectifiers at same current |
| RoHS-compliant, halogen- and antimony-free | Meets IPC-1752A material declaration requirements for automotive and industrial end equipment |
Applications
| Server Power Supply | Industrial DC-DC Converter |
|---|---|
Use Scenario: Primary-side synchronous rectification in 1U server PSU with 48V intermediate bus. IC Role / Device Role / Timing Role: Dual-leg super-fast rectifier replacing discrete diodes in center-tapped or full-wave configurations. Use Value: 30ns tRR minimizes dead-time losses and improves efficiency above 94% at full load. | Use Scenario: Output rectification in 24V/20A isolated DC-DC module for PLC backplane power. IC Role / Device Role / Timing Role: High-current common-cathode rectifier delivering regulated 24V from 100 kHz flyback stage. Use Value: 8A/leg rating and 3°C/W RθJC enable natural convection cooling without heatsink derating. |
| Telecom Rectifier Module | EV Onboard Charger Auxiliary Supply |
Use Scenario: Secondary-side rectification in -48V telecom rectifier with active OR-ing control. IC Role / Device Role / Timing Role: Low-leakage (10 µA) dual-anode rectifier supporting hot-swap and redundancy circuits. Use Value: Sub-µA-level IR drift over temperature ensures stable biasing in precision current-sense paths. | Use Scenario: Auxiliary 12V supply rectification in bidirectional OBC using phase-shifted full-bridge topology. IC Role / Device Role / Timing Role: Fast-recovery dual-leg rectifier handling 100 kHz+ switching with 125A surge capability. Use Value: 125A IFSM withstands repeated inrush during AC grid reconnect sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1602D | 16A single-diode TO220AC; 200V VRRM, 35ns tRR, higher VF (1.25V @ 8A) | Single-leg configuration requires two devices for dual-output use | Select when board layout favors discrete placement or thermal isolation between legs is required |
| GBU16K | 16A bridge rectifier in GBU package; 800V VRRM, 500ns tRR, no dual-anode flexibility | Fixed bridge topology limits use to single-output full-wave applications | Select only for cost-sensitive, lower-frequency (<50 kHz) AC-input front-end rectification |
Compared with STTH1602D and GBU16K, STPR1620 uniquely delivers dual-anode super-fast rectification in one TO220AB package - enabling space-efficient interleaved or dual-output designs with superior tRR and thermal performance, while avoiding the layout overhead of discrete pairs or the speed penalty of bridge alternatives.
Availability
STPR1620 is available at Aetrix Electronics and suitable for switched-mode power supplies, high-frequency DC-DC converters, and telecom rectifier modules requiring stable component supply, consistent thermal performance, and RoHS-compliant packaging.
Supply support for STPR1620 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-efficiency power management, signal integrity, and protection solutions for industrial, computing, and communications markets.
The STPR series targets high-reliability power conversion applications, emphasizing fast recovery, low leakage, and thermal robustness in TO220-based rectifiers for next-generation SMPS and DC-DC systems.
FAQ
What is the maximum junction temperature for STPR1620?
The STPR1620 has an operating junction temperature range of –55°C to +150°C. This rating is validated per JEDEC JESD22-A108 and confirmed in thermal characterization tests with a 75mm × 75mm × 1.8mm copper heatsink. Derating curves in DS43470 show usable current drops linearly above TC = 100°C.
Is STPR1620 suitable for automotive applications?
STPR1620 is not AEC-Q101 qualified. While it meets RoHS and halogen-free requirements, Diodes explicitly states that automotive-grade versions require PPAP-capable manufacturing and IATF 16949 certification - which this part does not carry. It is intended for industrial and commercial power supplies, not safety-critical automotive subsystems.
How is the cathode terminal connected internally?
The cathode is electrically tied to the metal tab (lead 3) and forms the common output node for both anode legs. The tab is not internally insulated - electrical isolation from the PCB mount surface must be implemented externally using mica washers or insulating pads when the cathode is not at chassis ground potential.
What is the typical total capacitance and its impact on EMI?
STPR1620 exhibits 65 pF typical total capacitance at VR = 4V and f = 1.0 MHz. This low CT minimizes displacement current during high-dv/dt switching transitions, reducing common-mode EMI generation in high-frequency converters - especially beneficial in noise-sensitive telecom and server power applications.
STPR1620 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 30 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO220AB (Type WX)
STPR1620 FAQ
1.How can I place an order for STPR1620 through Aetrix?
Please submit a Request for Quotation (RFQ) for STPR1620 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 STPR1620 reliable?
The price and inventory of STPR1620 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPR1620 is usually 5 days.
3.What payment methods are accepted for STPR1620?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPR1620 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPR1620?
STPR1620 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPR1620 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 STPR1620?
For technical support, including STPR1620 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPR1620 requirements.
6.How does Aetrix verify that STPR1620 is sourced from the original manufacturer or authorized distributors?
All STPR1620 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 STPR1620 meets industry standards.
7.What is the process for return or replacement of STPR1620?
All STPR1620 units undergo pre-shipment inspection (PSI). If there is an issue with STPR1620, 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 STPR1620 part is unused and in its original packaging.
Return procedure for STPR1620:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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