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Diodes Incorporated STPR1040
- Part No.:
- STPR1040
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
STPR1040.pdf
- Description:
- DIODE ARRAY GP 400V 5A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:47
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Product details
Overview
STPR1040 from Diodes Incorporated is a 10A dual-leg super-fast rectifier diode rated for 400V peak reverse voltage, with 1.3V forward voltage at 5A/25°C and 10μA reverse leakage at 400V/25°C, used in high-frequency DC-DC converters and switched-mode power supplies where fast recovery and low conduction loss are critical.
For engineers reviewing the STPR1040 datasheet, STPR1040 pinout, STPR1040 application, or STPR1040 equivalent, this device's 35ns reverse recovery time, TO220AB (Type WX) package thermal resistance of 4.2°C/W (junction-to-case), and dual-leg 5A-per-leg configuration are key selection criteria for high-efficiency, thermally constrained rectification stages.
Technical Context
The STPR1040 integrates two independent super-fast rectifying legs in a single TO220AB (Type WX) package, each rated for 5A average output current and 80A non-repetitive surge capability. Its glass-passivated silicon die enables stable operation from –55°C to +150°C junction temperature.
Designed for high-frequency switching topologies, it delivers 35ns reverse recovery time under IF = 0.5A / IR = 1.0A conditions and exhibits only 50pF typical junction capacitance at 4V reverse bias and 1MHz - minimizing switching losses and EMI generation in SMPS flyback and forward converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Withstands up to 400V repetitive reverse voltage without breakdown, enabling use in 280V AC-input SMPS front-ends. |
| IO (per leg) | 5 A - Sustains 5A continuous average forward current per anode-cathode path at 25°C ambient with adequate heatsinking. |
| VF | 1.30 V @ 5A, 25°C - Low conduction loss reduces power dissipation and improves efficiency in high-current rectification paths. |
| tRR | 35 ns - Enables operation at >100 kHz switching frequencies with minimal reverse recovery loss and voltage overshoot. |
| IR | 10 μA @ 400V, 25°C - Low leakage preserves hold-up time and minimizes standby power in offline power supplies. |
| RθJC | 4.2 °C/W - Allows direct mounting to copper heatsink (50×50×2 mm) for thermal management of up to ~10W dissipation per leg. |
| CT | 50 pF @ 4V, 1 MHz - Low junction capacitance limits displacement current and dv/dt-induced turn-on in high-dv/dt environments. |
Pinout & Package
Package: TO220AB (Type WX), molded plastic with matte tin-plated leads, UL 94V-0 rated, 2.0275 g typical weight. Mounting tab is cathode-connected and electrically active.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (center) | Cathode (common) | Electrically connected to both internal cathodes; must be isolated from chassis unless circuit design requires common-cathode configuration. |
| Lead 1 (left) | Anode 1 | First rectifying leg input; used for dual-output or interleaved rectifier configurations. |
| Lead 2 (right) | Anode 2 | Second independent rectifying leg input; enables space-efficient dual-channel rectification without discrete devices. |
Key Features
| Feature | Design Value |
|---|---|
| Super-fast switching | 35 ns tRR enables efficient operation in 100–500 kHz SMPS designs without snubber networks. |
| Glass passivated die | Enhances humidity resistance and long-term reliability in industrial and automotive-adjacent environments. |
| Dual-leg 10A total rating | Two independent 5A legs share one TO220AB footprint, reducing PCB area vs. two discrete TO220 diodes. |
| Low VF and IR | 1.3V @ 5A/25°C and 10μA @ 400V/25°C jointly reduce conduction loss and improve light-load efficiency. |
| RoHS 3 & "Green" compliant | Meets <900 ppm Br/Cl (<1500 ppm total), <1000 ppm Sb; suitable for eco-sensitive consumer and industrial end equipment. |
Applications
| Server Power Supply Rectification | Industrial DC-DC Converter Output Stage |
|---|---|
Use Scenario: High-density 1U server PSU using active clamp forward topology with synchronous rectification backup. IC Role / Device Role / Timing Role: Dual-leg super-fast rectifier providing primary-side OR-ing and secondary-side freewheeling with shared cathode return. Use Value: 35ns tRR prevents cross-conduction loss during gate-drive overlap; low CT avoids parasitic ringing at 300 kHz switching. | Use Scenario: 48V-to-12V isolated DC-DC module for PLC I/O power rails requiring high MTBF and thermal margin. IC Role / Device Role / Timing Role: Output synchronous rectifier replacement in asymmetrical half-bridge configuration, leveraging dual-anode isolation. Use Value: 4.2°C/W RθJC allows direct heatsink mounting without thermal interface pads; 150°C max TJ supports unforced convection cooling. |
| Telecom AC-DC Front-End | Automotive On-Board Charger Auxiliary Supply |
Use Scenario: Universal-input (90–264 VAC) telecom rectifier stage feeding PFC controller with 250 kHz boost frequency. IC Role / Device Role / Timing Role: Bridgeless PFC input rectifier leg handling 5A RMS current with minimal reverse recovery stress. Use Value: 10μA IR at 100°C ensures stable bus hold-up during brownouts; glass passivation resists condensation in base station enclosures. | Use Scenario: 12V auxiliary supply in OBC systems converting HV battery (400V) to MCU/sensor rails via flyback converter. IC Role / Device Role / Timing Role: Secondary-side rectifier operating at 125°C ambient with intermittent full-load duty cycles. Use Value: VF increases only to 1.40V @ 5A/125°C - maintaining <0.7W conduction loss per leg and avoiding thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH10R04DJF | Same TO220AB package, 10A total, but single-die dual-anode structure; tRR = 30ns, VF = 1.25V @ 5A/25°C. | Lower VF improves efficiency at light loads; slightly faster recovery suits >400 kHz designs. | Prefer when optimizing for minimum conduction loss and higher switching frequency; verify cathode-tab isolation compatibility. |
| ES1J-E3/54 | DO-214AB package, 1A rating, 600V VRRM, tRR = 35ns - not pin-compatible or thermally scalable. | Only suitable for low-power auxiliary rails; cannot replace STPR1040 in main power paths. | Acceptable only for prototyping or low-current bias supplies; requires PCB redesign and thermal re-evaluation. |
Compared with STTH10R04DJF and ES1J-E3/54, the STPR1040 offers superior thermal performance (4.2°C/W vs. >10°C/W for DO-214AB) and dual-leg layout flexibility, making it optimal for high-current, space-constrained industrial and telecom rectifiers where thermal management and layout density are prioritized over marginal VF reduction.
Availability
STPR1040 is available at Aetrix Electronics and suitable for switched-mode power supplies, high-frequency DC-DC converters, and industrial auxiliary power rails requiring stable component supply, long-lifecycle availability, and RoHS 3-compliant sourcing.
Supply support for STPR1040 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 North America.
The STPR1040 belongs to Diodes' high-voltage super-fast rectifier product line, engineered specifically for high-efficiency, high-reliability AC-DC and isolated DC-DC conversion in industrial, telecom, and computing infrastructure.
FAQ
Is the STPR1040 pin-compatible with standard TO220AB rectifiers like the 1N5408?
No. While both use TO220AB, the STPR1040 has three terminals (two anodes + common cathode tab), whereas the 1N5408 is single-anode. Mounting orientation and terminal assignment differ: STPR1040 Lead 1 = Anode 1, Lead 2 = Anode 2, Tab = Cathode. Substitution requires PCB layout revision.
What is the maximum recommended case temperature for continuous operation?
The STPR1040 supports continuous operation up to +150°C junction temperature. With RθJC = 4.2°C/W and typical dissipation ≤5W per leg, the case temperature should remain ≤129°C when mounted on a 50×50×2 mm copper heatsink per JEDEC JESD-51 test condition.
Does the STPR1040 meet AEC-Q101 for automotive use?
No. The STPR1040 is qualified for commercial temperature range (–55°C to +150°C) and RoHS 3 compliance, but it is not AEC-Q101 stress-tested or PPAP-capable. Diodes offers AEC-Q101 variants (e.g., STPR1040Q) for automotive applications - contact their automotive team for qualification documentation.
Can the two legs be paralleled to achieve 10A per leg?
No. The legs are electrically isolated anodes sharing a common cathode; paralleling them would short the anodes together. Each leg is rated for 5A average current. For 10A single-path rectification, use a dedicated 10A single-anode device such as the STTH10R04DJF or STPR1040's sibling STPR2040 (20A total, same package).
STPR1040 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):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 5 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)
STPR1040 FAQ
1.How can I place an order for STPR1040 through Aetrix?
Please submit a Request for Quotation (RFQ) for STPR1040 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 STPR1040 reliable?
The price and inventory of STPR1040 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPR1040 is usually 5 days.
3.What payment methods are accepted for STPR1040?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPR1040 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPR1040?
STPR1040 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPR1040 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 STPR1040?
For technical support, including STPR1040 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPR1040 requirements.
6.How does Aetrix verify that STPR1040 is sourced from the original manufacturer or authorized distributors?
All STPR1040 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 STPR1040 meets industry standards.
7.What is the process for return or replacement of STPR1040?
All STPR1040 units undergo pre-shipment inspection (PSI). If there is an issue with STPR1040, 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 STPR1040 part is unused and in its original packaging.
Return procedure for STPR1040:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPR1040 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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