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Diodes Incorporated STPR1640
- Part No.:
- STPR1640
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
STPR1640.pdf
- Description:
- DIODE ARRAY GP 400V 8A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:75
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Product details
Overview
STPR1640 from Diodes Incorporated is a 16A dual-leg super-fast rectifier in TO220AB (Type WX) package, rated for 400V peak reverse voltage, 8A average current per leg (16A total), 1.3V max forward voltage at 8A/25°C, and 35ns reverse recovery time - deployed in high-frequency DC-DC converters and SMPS output stages.
For engineers reviewing the STPR1640 datasheet, STPR1640 pinout, STPR1640 application, or STPR1640 equivalent, key selection criteria include its 35ns tRR, 100A non-repetitive surge rating, glass-passivated die construction, low IR (10µA @ 400V/25°C), and thermal resistance of 2°C/W junction-to-case - critical for compact, high-efficiency power conversion designs.
Technical Context
The STPR1640 integrates two independent super-fast rectifying diodes in a single TO220AB (Type WX) package with common cathode configuration. Its 35ns reverse recovery time and low QRR support operation above 100kHz, while the glass-passivated junction ensures stable leakage performance across temperature.
Rated for 400V VRRM and 100A IFSM (8.3ms half-sine), it delivers robust surge immunity in transient-prone power rails. The 2°C/W RθJC enables direct mounting to heatsinks for sustained 16A conduction without derating beyond TC = +110°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - blocks up to 400V reverse voltage without breakdown in SMPS flyback or boost outputs |
| IO (per leg) | 8 A - supports continuous 8A conduction per anode leg at TC = +110°C |
| tRR | 35 ns - enables efficient switching at >100 kHz in high-frequency DC-DC converters |
| VF (max) | 1.30 V @ 8A/25°C - reduces conduction loss vs. standard fast rectifiers, improving efficiency |
| IR (max) | 10 µA @ 400V/25°C - minimizes standby power loss in offline adapters and hold-up circuits |
| RθJC | 2 °C/W - allows direct heatsink mounting for thermal management in space-constrained 16A designs |
| IFSM | 100 A - withstands inrush and fault currents in industrial power supplies without failure |
Pinout & Package
Package: TO220AB (Type WX), 3-terminal molded plastic case with matte tin-plated leads, UL 94V-0 rated, 1.927g weight. Common-cathode dual-diode configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Lead 1) | Input terminal for first rectifier leg | Connects to transformer secondary or switching node; carries up to 8A continuous current |
| Anode 2 (Lead 2) | Input terminal for second rectifier leg | Independent high-current path; enables dual-output or interleaved converter topologies |
| Cathode (Tab) | Common output terminal (electrically connected to metal tab) | Must be electrically isolated from chassis unless referenced to system ground; primary heat dissipation path |
Key Features
| Feature | Design Value |
|---|---|
| Super-fast switching (tRR = 35 ns) | Enables high-frequency operation (>100 kHz) with minimal switching loss and EMI generation |
| Glass-passivated die construction | Ensures long-term reliability and stable IR performance under thermal cycling and humidity stress |
| 100A peak surge rating (IFSM) | Provides margin against line transients and startup inrush in industrial AC-DC front-ends |
| Low VF (1.30 V max @ 8A/25°C) | Reduces conduction loss by ~15% vs. standard fast rectifiers, improving full-load efficiency |
| RoHS 3 & "Green" compliant | Meets global environmental regulations with <900 ppm Br/Cl and <1000 ppm Sb; suitable for automotive PPAP |
Applications
| Server Power Supply | Industrial DC-DC Converter |
|---|---|
Use Scenario: Primary output rectification in 1U server PSUs operating at 200–500 kHz. IC Role / Device Role / Timing Role: Dual-leg common-cathode super-fast rectifier replacing discrete diodes in synchronous rectifier auxiliary paths. Use Value: 35ns tRR and 2°C/W RθJC enable compact heatsink design while maintaining >92% efficiency at 12V/100A output. | Use Scenario: Output stage in isolated 48V-to-12V industrial DC-DC modules with wide input range. IC Role / Device Role / Timing Role: High-reliability rectifier handling 16A combined load with surge immunity during motor drive transients. Use Value: 100A IFSM and glass-passivated junction ensure uptime in factory automation environments with frequent load dumps. |
| Telecom Rectifier Module | LED Driver Power Stage |
Use Scenario: -48V telecom rectifier board requiring high power density and low standby loss. IC Role / Device Role / Timing Role: Secondary-side rectifier in phase-shifted full-bridge topology. Use Value: 10µA IR @ 400V/25°C minimizes no-load consumption, meeting Energy Star Level VI requirements. | Use Scenario: Constant-current LED driver for street lighting with 300W output and 100–240VAC input. IC Role / Device Role / Timing Role: Bridge rectifier input stage followed by PFC and buck converter. Use Value: TO220AB mechanical robustness and 150°C Tj rating support operation in sealed outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1604D | 16A, 400V, tRR = 45ns, VF = 1.35V @ 8A/25°C, TO220AC package (single-anode) | Single-diode topology requires two devices for dual-leg function; higher tRR increases switching loss | Select when discrete layout flexibility or legacy footprint compatibility is required |
| GBU16J | 16A, 600V, tRR = 250ns, VF = 1.1V @ 8A/25°C, GBU package (integrated bridge) | Slower recovery limits use to <50 kHz; integrated bridge reduces component count but lacks dual-anode independence | Select only for low-frequency, cost-sensitive AC-DC inputs where speed is not critical |
Compared with STTH1604D and GBU16J, the STPR1640 uniquely combines dual-anode independence, 35ns speed, and TO220AB thermal performance - making it optimal for high-density, high-frequency dual-output SMPS where layout area and thermal headroom are constrained.
Availability
STPR1640 is available at Aetrix Electronics and suitable for switched-mode power supplies, high-frequency DC-DC converters, and industrial rectifier modules requiring stable component supply, RoHS-compliant sourcing, and consistent TO220AB mechanical fit.
Supply support for STPR1640 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The STPR series belongs to Diodes' high-reliability power rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in computing, telecom, and industrial equipment.
FAQ
What is the maximum junction temperature and how does it affect thermal design?
The STPR1640 has a TJ rating of –55°C to +150°C. At TC = +110°C, it delivers 8A per leg continuously. With RθJC = 2°C/W, a 40°C temperature rise from case to junction occurs at 20W dissipation - requiring a heatsink capable of maintaining TC ≤ 110°C under worst-case load and ambient conditions.
Is the STPR1640 suitable for automotive applications?
The STPR1640 is not AEC-Q101 qualified out-of-box. However, Diodes offers automotive-grade variants (e.g., STPR1640Q) with PPAP documentation, IATF 16949 manufacturing, and extended qualification testing. For automotive use, contact Diodes or Aetrix for qualified alternatives.
How is polarity identified on the TO220AB (Type WX) package?
Polarity is marked on the device top view: the cathode is the metal tab (electrically connected to lead 3), and the two anodes are leads 1 and 2. The marking "STPR1640" appears adjacent to lead 1; the tab must be insulated unless used as the circuit return path.
Does the 16A rating apply to both legs simultaneously?
Yes - the 16A total average rectified output current rating assumes both legs conduct simultaneously at balanced load. Each leg is independently rated for 8A at TC = +110°C, and the package thermal design supports combined 16A conduction when properly heatsinked.
STPR1640 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):
- 400 V
- Current - Average Rectified (Io) (per Diode):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO220AB (Type WX)
STPR1640 FAQ
1.How can I place an order for STPR1640 through Aetrix?
Please submit a Request for Quotation (RFQ) for STPR1640 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 STPR1640 reliable?
The price and inventory of STPR1640 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPR1640 is usually 5 days.
3.What payment methods are accepted for STPR1640?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPR1640 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPR1640?
STPR1640 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPR1640 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 STPR1640?
For technical support, including STPR1640 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPR1640 requirements.
6.How does Aetrix verify that STPR1640 is sourced from the original manufacturer or authorized distributors?
All STPR1640 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 STPR1640 meets industry standards.
7.What is the process for return or replacement of STPR1640?
All STPR1640 units undergo pre-shipment inspection (PSI). If there is an issue with STPR1640, 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 STPR1640 part is unused and in its original packaging.
Return procedure for STPR1640:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPR1640 Tags
-
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
onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
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