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MCR8DSNT4G
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Product Detailed Parameters
- Description：SCR 800V 8A DPAK
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- Voltage - Off State：800 V
- Voltage - Gate Trigger (Vgt) (Max)：1 V
- Current - Gate Trigger (Igt) (Max)：200 µA
- Current - Hold (Ih) (Max)：6 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：90A @ 60Hz
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：TO-252 (DPAK)
- Voltage - On State (Vtm) (Max)：1.8 V
- Current - On State (It (AV)) (Max)：5.1 A
- Current - On State (It (RMS)) (Max)：8:00 AM
- Current - Off State (Max)：10 µA
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Overview
The Littelfuse MCR8DSNT4G is a surface-mount silicon-controlled rectifier (SCR) in the MCR8DSN series, rated for an 800V peak repetitive off-state voltage. It supports an 8.0A RMS on-state current and a 90A non-repetitive surge current. The device features sensitive gate triggering with a maximum continuous DC gate trigger current of 200µA at 25°C. Packaged in a lead-free DPAK-3 (Case 369C), it operates within a junction temperature range of -40°C to 110°C.
Feature Summary
- Sensitive gate characteristics enable direct interfacing with microprocessors using minimal trigger current.
- Passivated die construction ensures reliability and uniformity under industrial conditions.
- Lead-free DPAK package meets UL 94 V-0 flammability standards for safety compliance.
Applications
- Motor control circuits
- Process control systems
- Temperature and light regulation
- Speed control applications
Procurement Notes
Verify the specific ordering suffix 'T4G' confirms the tape-and-reel shipping format and lead-free status. Confirm the 'N' designation corresponds to the 800V blocking voltage rating rather than the 600V variant. Ensure the procurement documentation matches the Case 369C physical dimensions provided in the datasheet.
Selection Notes
Select this component when high-volume production requires a compact surface-mount SCR with low-level gate drive sensitivity. Evaluate thermal resistance parameters against the expected ambient conditions to ensure the junction temperature remains within the specified operating range during continuous conduction.
Part Context
This part belongs to the MCR8DSM/MCR8DSN family of thyristors designed for cost-effective industrial and consumer electronics. The series offers small size options with two package styles, providing flexibility for space-constrained designs requiring reliable switching capabilities.
Replacement Considerations
Cross-reference with MCR8DSMT4G for the 600V version if voltage requirements allow. Verify pinout compatibility with the standard DPAK-3 footprint before substituting other manufacturers' SCRs.
FAQ
What is the maximum continuous DC gate trigger current?
The maximum continuous DC gate trigger current is 200 µA at a junction temperature of 25°C.
How does the holding current vary with temperature?
The holding current increases with temperature, reaching a maximum of 10 mA at -40°C compared to 6.0 mA at 25°C.
What is the critical rate of rise of off-state voltage?
The typical static dv/dt is 45 V/µs at a junction temperature of 110°C with a gate-cathode resistance of 100 Ω.
