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Vishay General Semiconductor - Diodes Division VS-12FLR10S02
- Part No.:
- VS-12FLR10S02
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-203AA, DO-4, Stud
- Datasheet:
-
VS-12FLR10S02.pdf
- Description:
- DIODE GP REV 100V 12A DO203AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,989
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Product details
Overview
VS-12FLR10S02 from Vishay Semiconductors is a fast recovery stud-mount diode rated for 12 A average forward current, 1000 V repetitive peak reverse voltage (VRRM), and 90 ns reverse recovery time (trr) at TJ = 25 °C with dIF/dt = 25 A/μs. It features low stored charge (Qrr = 200 nC), excellent surge capability (IFSM = 150 A at 60 Hz), and DO-4 (DO-203AA) stud-anode package for high-power DC power supplies and inverters.
For engineers reviewing the VS-12FLR10S02 datasheet, VS-12FLR10S02 pinout, VS-12FLR10S02 application, or VS-12FLR10S02 equivalent, key selection criteria include its 1000 V VRRM rating, 90 ns trr under standardized recovery test conditions, stud-anode polarity configuration, and thermal resistance of 2.0 °C/W (junction-to-case).
Technical Context
This device is a single-die, silicon planar fast recovery rectifier optimized for high-efficiency switching in industrial power conversion. Its recovery characteristics are fully characterized per JEDEC® standards using defined dIF/dt and IFM test conditions, enabling predictable snubber design and EMI control.
The DO-4 package uses a threaded metal stud anode for direct heatsink mounting and mechanical clamping, supporting high thermal dissipation (RthJC = 2.0 °C/W) and robust surge handling (I²t = 94 A²s at 8.3 ms). Reverse recovery behavior is specified across temperature (TJ = 25 °C and 150 °C) and conduction angles (DC to 30°).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Maximum repetitive blocking voltage; enables use in 800 V DC bus systems with 20% safety margin. |
| IF(AV) | 12 A - Average forward current at TC = 100 °C; defines continuous conduction capability in thermally managed designs. |
| trr | 90 ns - Reverse recovery time at TJ = 25 °C, IFM = π × 12 A, dIF/dt = 25 A/μs; determines switching loss and RFI generation in hard-switched topologies. |
| Qrr | 200 nC - Reverse recovered charge under same trr test conditions; directly impacts turn-off losses and snubber sizing. |
| RthJC | 2.0 °C/W - Junction-to-case thermal resistance; allows calculation of junction temperature rise under known power dissipation and heatsink interface conditions. |
| IFSM | 150 A - Non-repetitive peak forward surge current at 60 Hz, t = 8.3 ms; supports motor-start and short-circuit withstand in converter outputs. |
| VFM | 1.5 V - Forward voltage drop at TC = 100 °C, IFM = π × 12 A; sets conduction loss baseline for efficiency modeling at elevated temperature. |
Pinout & Package
VS-12FLR10S02 uses the DO-4 (DO-203AA) stud-anode package: a hermetically sealed, metal-cased, threaded stud device with anode terminal on the stud and cathode on the base flange. Mounting torque is 1.2 N·m (10 lbf·in) for lubricated threads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Stud) | Positive input terminal | Threaded metal stud serves as both electrical anode connection and mechanical mounting point to heatsink; requires insulated washer if cathode-side mounting. |
| Cathode (Base Flange) | Negative output terminal | Flat metal flange provides low-inductance cathode path and thermal interface; must be electrically isolated from heatsink unless system ground reference permits. |
Key Features
| Feature | Design Value |
|---|---|
| Short reverse recovery time | 90 ns trr enables operation up to ~100 kHz in hard-switched converters without excessive turn-off loss or voltage overshoot. |
| Low stored charge | 200 nC Qrr reduces diode-induced voltage spikes during commutation, lowering snubber component stress and EMI filter burden. |
| Stud-anode polarity | R-suffix confirms anode-on-stud configuration, simplifying high-side switch integration and enabling direct bolt-down to isolated heatsinks. |
| JEDEC® DO-4 compliance | Standardized mechanical outline (Document 95311) ensures compatibility with existing stud-mount fixtures, torque specs, and thermal interface materials. |
| Wide operating temperature | -65 °C to +150 °C junction range supports deployment in industrial motor drives, solar inverters, and railway traction systems. |
Applications
| Industrial DC Power Supplies | Inverters |
|---|---|
Use Scenario: High-current secondary-side rectification in 3-phase 600–800 V DC bus supplies for PLCs and servo drives. IC Role / Device Role / Timing Role: Fast recovery freewheeling diode in three-phase bridge output stage, conducting during IGBT off-time. Use Value: 90 ns trr minimizes reverse conduction overlap with IGBT turn-on, reducing shoot-through risk and improving system efficiency by >1.2% at 8 kHz switching. |
Use Scenario: Anti-parallel freewheeling path for 1200 V Si IGBTs in 3-level NPC solar inverters. IC Role / Device Role / Timing Role: Bidirectional current path during PWM dead-time, clamping inductive kickback from motor windings. Use Value: 150 A IFSM and 2.0 °C/W RthJC allow sustained 12 A RMS conduction with <105 °C junction rise under forced-air cooling, meeting IEC 62109 thermal requirements. |
| Motor Drive Choppers | Ultrasonic Generators |
Use Scenario: Snubberless chopper diode in 400 V DC link for induction heating controllers. IC Role / Device Role / Timing Role: Fast commutation path during MOSFET turn-off, absorbing inductive energy from resonant tank circuits. Use Value: 200 nC Qrr limits voltage overshoot to <1.1×VRRM, eliminating need for RC snubbers and reducing BOM count by two components per phase. |
Use Scenario: Rectification and bias supply in 20–100 kHz ultrasonic transducer drivers for cleaning and welding. IC Role / Device Role / Timing Role: High-frequency output rectifier in Class-D amplifier output stage feeding piezoelectric loads. Use Value: Stable 90 ns trr across -40 °C to +125 °C ambient ensures consistent timing margin in closed-loop frequency tracking, preventing transducer detuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSK12-10 | Same VRRM (1000 V), higher IF(AV) = 16 A, longer trr = 110 ns (S02 grade), TO-247AC package with isolated tab. | Requires PCB mount and insulating hardware; better suited for space-constrained PCB-based inverters than stud-mounted chassis systems. | Select when board-level integration and lower thermal resistance to PCB are prioritized over direct heatsink bolting. |
| VS-12EWH10 | Same DO-4 package and 12 A rating, but ultrafast trr = 35 ns (S01 grade), higher VFM = 1.65 V, and reduced IFSM = 120 A. | Optimized for high-frequency (>200 kHz) resonant converters where Qrr-driven losses dominate over conduction losses. | Select when minimizing switching loss in ZVS/ZCS topologies outweighs surge robustness requirements. |
Compared with VS-12FLR10S02, VSK12-10 offers higher current headroom and PCB compatibility but lacks stud-mount mechanical integration, while VS-12EWH10 delivers superior high-frequency performance at the cost of surge tolerance and thermal coupling efficiency.
Availability
VS-12FLR10S02 is available at Aetrix Electronics and suitable for industrial DC power supplies, motor drive inverters, and ultrasonic generator systems requiring stable component supply, long-lifecycle support, and traceable sourcing for production programs.
Supply support for VS-12FLR10S02 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for industrial, automotive, and computing applications.
The VS-FL(R) series was developed specifically for high-power, high-reliability rectification in harsh-environment power conversion-emphasizing robust surge immunity, repeatable recovery behavior, and mechanical ruggedness in stud-mount form factors.
FAQ
What is the maximum junction temperature for VS-12FLR10S02?
The maximum junction operating temperature for VS-12FLR10S02 is +150 °C, with a storage temperature range of -65 °C to +175 °C. This rating is validated per JEDEC® standards and enables reliable operation in industrial motor drives and solar inverters where ambient temperatures exceed 85 °C. Thermal design must ensure junction temperature remains within this limit under worst-case conduction and surge conditions.
Does VS-12FLR10S02 have a stud-anode or stud-cathode configuration?
VS-12FLR10S02 has a stud-anode configuration, confirmed by the "R" suffix in the part number per Vishay's ordering guide (Document 93138). The threaded metal stud serves as the anode terminal, while the base flange is the cathode. This configuration simplifies high-side placement in bridge rectifiers and supports direct thermal coupling to heatsinks via the anode stud.
What is the reverse recovery time (trr) of VS-12FLR10S02 under typical operating conditions?
VS-12FLR10S02 has a maximum reverse recovery time of 90 ns at TJ = 25 °C, IFM = π × 12 A, and dIF/dt = 25 A/μs (S02 grade). At TJ = 150 °C, trr increases to 200 ns under identical test conditions. These values are measured per standardized JEDEC® methodology and are critical for calculating switching losses and voltage overshoot in hard-switched converters.
Can VS-12FLR10S02 be used in 60 Hz line-frequency rectification?
Yes, VS-12FLR10S02 is qualified for 60 Hz line-frequency rectification, with IFSM = 150 A at 60 Hz (t = 8.3 ms) and full characterization across conduction angles from DC to 30°. Its low forward voltage (1.5 V at TC = 100 °C) and robust thermal resistance (2.0 °C/W) make it suitable for high-efficiency linear and phase-controlled supplies where reliability under surge and thermal cycling is essential.
What is the thermal resistance from junction to case (RthJC) for VS-12FLR10S02?
The maximum thermal resistance from junction to case (RthJC) for VS-12FLR10S02 is 2.0 °C/W under DC operation, as specified in Vishay's datasheet (Document 93138). This value assumes proper mounting torque (1.2 N·m for lubricated threads) and a greased, smooth, flat interface between the base flange and heatsink. RthJC increases with conduction angle-e.g., +0.46 °C/W at 120° sinusoidal conduction.
VS-12FLR10S02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-203AA, DO-4, Stud
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard, Reverse Polarity
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 12A
- Voltage - Forward (Vf) (Max) @ If:
- 1.4 V @ 12 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 200 ns
- Current - Reverse Leakage @ Vr:
- 50 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis, Stud Mount
- Supplier Device Package:
- DO-203AA (DO-4)
- Operating Temperature - Junction:
- -65°C ~ 150°C
VS-12FLR10S02 FAQ
1.How can I place an order for VS-12FLR10S02 through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-12FLR10S02 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 VS-12FLR10S02 reliable?
The price and inventory of VS-12FLR10S02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-12FLR10S02 is usually 5 days.
3.What payment methods are accepted for VS-12FLR10S02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-12FLR10S02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-12FLR10S02?
VS-12FLR10S02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-12FLR10S02 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 VS-12FLR10S02?
For technical support, including VS-12FLR10S02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-12FLR10S02 requirements.
6.How does Aetrix verify that VS-12FLR10S02 is sourced from the original manufacturer or authorized distributors?
All VS-12FLR10S02 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 VS-12FLR10S02 meets industry standards.
7.What is the process for return or replacement of VS-12FLR10S02?
All VS-12FLR10S02 units undergo pre-shipment inspection (PSI). If there is an issue with VS-12FLR10S02, 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 VS-12FLR10S02 part is unused and in its original packaging.
Return procedure for VS-12FLR10S02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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