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VS-2N691 is listed in the Scrs range at ChipApex. The manufacturer field lists Vishay General Semiconductor - Diodes Division. Its product description is SCR 700V 25A TO208AA. Review the specifications below when checking this part for your BOM.
Scrs specifications for VS-2N691
- Description：SCR 700V 25A TO208AA
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Bulk
- Voltage - Off State：700 V
- Voltage - Gate Trigger (Vgt) (Max)：2 V
- Current - Gate Trigger (Igt) (Max)：40 mA
- Current - Hold (Ih) (Max)：20 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：145A, 150A
- SCR Type：Standard Recovery
- Operating Temperature：-65°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Chassis, Stud Mount
- Package / Case：TO-208AA, TO-48-3, Stud
- Supplier Device Package：TO-208AA (TO-48)
- Voltage - On State (Vtm) (Max)：2 V
- Current - On State (It (AV)) (Max)：16 A
- Current - On State (It (RMS)) (Max)：25 A
- Current - Off State (Max)：2.25 mA
Scrs datasheet and documents for VS-2N691
Scrs Overview
The VS-2N691 is a general-purpose stud-mounted Phase Control Thyristor (SCR) from the Vishay VS-2N681 series. It features a maximum repetitive peak reverse and off-state voltage of 700 V and an RMS on-state current rating of 25 A. The device operates within a junction temperature range of -65 °C to +125 °C and utilizes a TO-48 (TO-208AA) package for base or stud mounting.
Scrs Feature Summary
- General purpose phase control thyristor designed for high-voltage applications
- Robust surge current capability with defined I2t fusing ratings
- Standardized triggering characteristics compatible with common gate drive circuits
Scrs Applications
- Industrial motor speed control systems
- High-power AC power regulation circuits
- Phase-controlled rectifier bridges
Scrs Procurement Notes
Verify the specific manufacturer part number against official Vishay documentation to ensure authenticity. Confirm that the component meets RoHS3 compliance requirements if applicable to your manufacturing standards. Ensure proper handling procedures are followed due to the stud-mount configuration and thermal management needs during installation.
Scrs Selection Notes
Select this component when a 700 V blocking voltage and 25 A RMS current capacity are required in a TO-48 package. Consider the -65 °C minimum operating temperature for harsh environments. Evaluate thermal resistance values to determine appropriate heatsinking for the expected average on-state current and conduction angle.
Scrs Part Context
This SCR belongs to the VS-2N681 series, which offers a broad forward and reverse voltage range through 1200 V. The series provides standardized electrical characteristics across multiple voltage ratings, allowing designers to maintain consistent gate drive and thermal design parameters while adjusting only the voltage blocking capability.
Scrs Replacement Considerations
Cross-reference with other manufacturers' 700 V, 25 A SCRs in TO-48 packages. Verify matching electrical parameters including holding current, gate trigger voltage, and thermal resistance before substitution.
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