My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VS-80PFR120W
- Part No.:
- VS-80PFR120W
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-203AB, DO-5, Stud
- Datasheet:
-
VS-80PFR120W.pdf
- Description:
- DIODE GP REV 1.2KV 80A DO203AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,200
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VS-80PFR120W from Vishay Semiconductors is a standard recovery power diode in DO-5 (DO-203AB) stud-mount package with reverse polarity (anode-to-stud), rated for 1200 V repetitive peak reverse voltage (VRRM), 80 A average forward current (IF(AV)), and 1570 A non-repetitive surge current at 60 Hz - used in industrial welding power supplies and high-current battery chargers.
For engineers reviewing the VS-80PFR120W datasheet, VS-80PFR120W pinout, VS-80PFR120W application, or VS-80PFR120W equivalent, key selection criteria include VRRM = 1200 V, IF(AV) = 80 A at TC = 140 °C, RthJC = 0.30 K/W, stud-anode mechanical mounting, and low forward voltage drop of 1.40 V at 220 A pulse.
Technical Context
This diode operates as a single-element, unidirectional rectifier with fixed polarity configuration (anode connected to the stud). Its thermal design relies on direct metal-to-heatsink mounting via 1/4"-28-UNF-2A threaded stud, achieving 0.30 K/W junction-to-case thermal resistance under DC operation.
It delivers high surge robustness (1570 A IFSM at 60 Hz, 10.23 kA²s I²t) and stable conduction across -55 °C to +180 °C junction temperature range, with VF(TO) = 0.73 V and rf = 3.0 mΩ defining its low-level forward conduction behavior at maximum TJ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - maximum repetitive reverse voltage before breakdown; defines safe blocking capability in 1200 V DC bus or line-frequency rectification. |
| IF(AV) | 80 A at TC = 140 °C - continuous average forward current rating under heatsink-cooled conditions; sets minimum heatsink sizing requirement. |
| IFSM (60 Hz) | 1570 A - peak non-repetitive surge current for 8.3 ms half-sine; supports welder arc initiation and converter startup transients. |
| RthJC | 0.30 K/W - junction-to-case thermal resistance under DC operation; enables precise junction temperature estimation from case measurement. |
| VFM | 1.40 V at Ipk = 220 A, TJ = 25 °C, tp = 400 μs - measured forward voltage under pulsed high-current condition; informs conduction loss calculation. |
| TJ Range | -55 °C to +180 °C - operational and storage temperature envelope; qualifies for under-hood, industrial, and welding equipment environments. |
Pinout & Package
VS-80PFR120W uses a DO-5 (DO-203AB) stud-mount package with reverse polarity: anode is electrically and mechanically connected to the threaded metal stud; cathode is accessed via insulated wire terminal (W suffix). Mounting torque must be applied only to the hexagonal nut (not plastic cap), with lubricated threads requiring 3.2 N·m (28 lbf·in).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Stud) | Positive input terminal | Threaded metal stud serves as both electrical anode connection and mechanical mounting interface; requires conductive thermal interface to heatsink. |
| Cathode (Wire) | Negative output terminal | Insulated wire lead provides isolated cathode connection; enables flexible PCB or busbar routing without stud shorting risk. |
Key Features
| Feature | Design Value |
|---|---|
| Stud-anode reverse polarity | Enables direct mounting to grounded heatsinks while maintaining circuit polarity integrity in high-side rectifier configurations. |
| Low RthJC = 0.30 K/W | Reduces thermal bottleneck between junction and heatsink, allowing higher sustained current or smaller heatsink volume in space-constrained welders. |
| High I²t = 10 230 A²s (60 Hz) | Provides margin against fuse tripping during repeated short-duration overloads typical in machine tool motor drives and battery charging cycles. |
| 180 °C max TJ rating | Supports operation in high-ambient environments such as enclosed welding cabinets or industrial enclosures without derating penalties. |
Applications
| Industrial Welding Power Supplies | Battery Charging Systems |
|---|---|
Use Scenario: High-current AC-to-DC conversion in stick/tig welder primary rectification stages with intermittent 1–2 s duty cycles. IC Role / Device Role / Timing Role: Main power rectifier handling up to 1570 A surge during arc strike, operating at 140 °C case temperature. Use Value: 1200 V VRRM prevents reverse breakdown during open-circuit voltage spikes; stud-anode mounting simplifies thermal path to chassis ground. |
Use Scenario: Three-phase battery charger front-end in EV fleet depots, delivering 80 A average DC output to 400–800 V battery banks. IC Role / Device Role / Timing Role: Unidirectional current valve in six-pulse bridge, conducting >90 % of cycle time with minimal conduction loss. Use Value: 1.40 V VFM at 220 A pulse ensures <1.5 W conduction loss per device at peak charge current, reducing thermal management burden. |
| Machine Tool Motor Drives | High-Power DC Power Supplies |
Use Scenario: Regenerative braking energy dissipation and main supply rectification in CNC spindle drives with 100–200 kW ratings. IC Role / Device Role / Timing Role: Bidirectional energy path component - conducts forward during motoring, blocks reverse during regeneration. Use Value: 0.30 K/W RthJC allows junction temperature to remain ≤165 °C even with 126 A RMS current, ensuring long-term reliability. |
Use Scenario: Laboratory-grade 0–1000 V, 100 A DC power supply output stage requiring low-noise, stable output under dynamic load. IC Role / Device Role / Timing Role: Primary rectifying element in center-tapped or full-wave bridge, operating continuously at rated IF(AV). Use Value: -55 °C to +180 °C TJ range permits operation in climate-controlled labs and unconditioned factory floors without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard recovery diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSKY120120 | 1200 V VRRM, 120 A IF(AV), TO-247AC package, no stud mount | Requires PCB mounting and external heatsink clamping; lacks integrated mechanical fastening | Select when board-level integration and lower profile are prioritized over direct chassis mounting. |
| VS-80PF120W | Same package and VRRM, but normal polarity (cathode-to-stud); identical electrical specs | Requires insulated stud mounting if chassis is grounded; incompatible with grounded-anode topologies | Choose only when circuit topology mandates cathode-to-chassis connection and isolation is feasible. |
Compared with VS-80PFR120W, VSKY120120 offers higher current rating but demands additional mechanical design effort, while VS-80PF120W shares all electrical parameters but reverses terminal polarity - making it unsuitable for anode-grounded systems without layout revision.
Availability
VS-80PFR120W is available at Aetrix Electronics and suitable for industrial welding power supplies, battery charging systems, and machine tool motor drives requiring stable component supply, long-life thermal performance, and proven surge resilience in high-reliability production.
Supply support for VS-80PFR120W 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-power, high-reliability diodes, MOSFETs, and optoelectronics for industrial and automotive applications.
The VS-80PFR120W belongs to Vishay's Generation 2 standard recovery diode family, engineered for ruggedized line-frequency rectification in welding, electroplating, and heavy-duty power conversion where thermal stability and surge tolerance are critical.
FAQ
What is the mounting configuration of the VS-80PFR120W?
The VS-80PFR120W features reverse polarity stud mounting: the anode is electrically and mechanically connected to the threaded 1/4"-28-UNF-2A stud, while the cathode is brought out via an insulated wire terminal. Mounting torque must be applied only to the hex nut (3.2 N·m with lubricated threads), not the plastic cap, to avoid damage.
Does the VS-80PFR120W have a specified forward voltage drop at rated current?
Yes - the VS-80PFR120W has a maximum forward voltage drop (VFM) of 1.40 V at Ipk = 220 A, TJ = 25 °C, and tp = 400 μs rectangular pulse. At lower currents and higher temperatures, VF follows the low-level slope resistance (rf = 3.0 mΩ) and threshold voltage (VF(TO) = 0.73 V) defined in its datasheet.
Can the VS-80PFR120W be used in 60 Hz AC line rectification?
Yes - the VS-80PFR120W is explicitly rated for 60 Hz operation, with IFSM = 1570 A and I²t = 10 230 A²s under those conditions. Its 1200 V VRRM provides sufficient margin for 600 V RMS line applications with transient overvoltage, and its thermal design supports continuous conduction at 80 A average current.
What is the maximum allowable junction temperature for the VS-80PFR120W?
The VS-80PFR120W has a maximum junction operating temperature (TJ) of +180 °C and a storage temperature range of -55 °C to +180 °C. This rating is validated across its entire conduction-angle operating envelope and enables use in high-ambient industrial environments without forced cooling.
How does the thermal resistance of the VS-80PFR120W vary with conduction angle?
The VS-80PFR120W's junction-to-case thermal resistance (RthJC) increases with decreasing conduction angle: it is 0.30 K/W at DC/180°, 0.31 K/W at 60° rectangular conduction, and 0.50 K/W at 30°. These values are documented in the "ΔRthJC Conduction" table and must be used for accurate transient thermal modeling.
VS-80PFR120W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-203AB, DO-5, Stud
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard, Reverse Polarity
- Voltage - DC Reverse (Vr) (Max):
- 1200 V
- Current - Average Rectified (Io):
- 80A
- Voltage - Forward (Vf) (Max) @ If:
- 1.4 V @ 220 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Stud Mount
- Supplier Device Package:
- DO-203AB (DO-5)
- Operating Temperature - Junction:
- -55°C ~ 180°C
VS-80PFR120W FAQ
1.How can I place an order for VS-80PFR120W through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-80PFR120W 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-80PFR120W reliable?
The price and inventory of VS-80PFR120W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-80PFR120W is usually 5 days.
3.What payment methods are accepted for VS-80PFR120W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-80PFR120W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-80PFR120W?
VS-80PFR120W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-80PFR120W 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-80PFR120W?
For technical support, including VS-80PFR120W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-80PFR120W requirements.
6.How does Aetrix verify that VS-80PFR120W is sourced from the original manufacturer or authorized distributors?
All VS-80PFR120W 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-80PFR120W meets industry standards.
7.What is the process for return or replacement of VS-80PFR120W?
All VS-80PFR120W units undergo pre-shipment inspection (PSI). If there is an issue with VS-80PFR120W, 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-80PFR120W part is unused and in its original packaging.
Return procedure for VS-80PFR120W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-80PFR120W Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
