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CG21000MS
Electronics Part Number
CG21000MS-WXManufacturer
Analog Devices, Inc.
CG21000MS
Description
SMD GDT, 1kV, 10kA, 2-Electrode IsolatorInventory
257 Pcs New Original In Stock
Surface-mount GDT, 1000V, 10kA, 2 pole; high surge rating for telecom and data-line protection.
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Minimum 1
Minimum 1
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Basic cost: USD 70.00
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Technical Specifications
Category
Surge Suppression Ics
Manufacturer
Analog Devices, Inc.
Packaging
Tube
Mounting Type
Surface Mount
Package / Case
12-TSSOP (0.118", 3.00mm Width) Exposed Pad
Series
-
Base Product Number
LTC7860
Product Status
Active
Applications
General Purpose
Technology
External Switch
Supplier Device Package
12-MSOP-EP
Number of Circuits
1
Voltage - Clamping
Adjustable
Voltage - Working
60V
Data Sheet Document (D)
Datasheets
Download LTC7860EMSE#PBF Product Specification (PDF)
HTML Datasheet
LTC7860EMSE#PBF-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
-2735-LTC7860EMSE#PBF
Standard Package
37
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Frequently Asked Questions (FAQ)
How does the LTC7860EMSE#PBF handle thermal stress during prolonged high-current surge events in ind
The LTC7860EMSE#PBF uses an external N-channel MOSFET to manage high-current transients, shifting heat generation away from the IC. However, thermal design is critical: ensure the PCB layout includes sufficient copper area for the MOSFET and the LTC7860EMSE#PBF’s exposed pad to dissipate heat effectively. For prolonged surge events (e.g., repetitive 10/1000μs surges), monitor junction temperature using thermal vias and consider derating the current limit or adding a heatsink on the MOSFET to prevent premature aging or latch-up. Poor thermal planning can lead to cumulative damage even within datasheet limits.
Can the LTC7860EMSE#PBF replace the LT4363 in existing overvoltage protection designs without modify
Replacing the LT4363 with the LTC7860EMSE#PBF requires careful evaluation: while both control external MOSFETs for surge protection, the LTC7860EMSE#PBF features a faster transient response and adjustable clamping, which may require tuning of the sense resistor and gate driver loop. The 12-MSOP-EP package is footprint-compatible, but the enable and fault reporting logic differ. Validate timing margins for fault detection and ensure the gate drive strength (up to 1A peak) doesn’t induce ringing in existing traces. Simulate or prototype under real fault conditions before full rollout.
What are the key risks when setting the adjustable clamping voltage in the LTC7860EMSE#PBF for a 24V
When setting the clamping voltage for a 24V system using the LTC7860EMSE#PBF, the primary risk is over-clamping during normal operation due to ripple or load transients. Use a precision resistor divider with low tempco resistors to set the clamp threshold just above the maximum expected operating voltage (e.g., 32V). Avoid placing the feedback node near noisy traces to prevent false triggering. A margin of at least 15% between operating and clamp voltages is recommended to account for resistor tolerance and transient overshoot, reducing risk of unnecessary power cycling.
How does the LTC7860EMSE#PBF respond to fast transient surges (<1μs rise time) compared to integrate
The LTC7860EMSE#PBF responds typically within 50ns, making it significantly faster than most TVS diodes, which can have response delays of several hundred nanoseconds. In telecom applications with fast EFTs or ring wave events, this allows the LTC7860EMSE#PBF to limit voltage by regulating the external MOSFET, reducing stress on downstream components. However, it does not clamp as tightly as a TVS. For best protection, use the LTC7860EMSE#PBF in conjunction with a downstream TVS or capacitor bank to absorb residual energy and meet IEC 61000-4-5 compliance.
What are the reliability implications of using the LTC7860EMSE#PBF in an automotive 12V system expos
The LTC7860EMSE#PBF is rated for a 60V working voltage, which is below the 65–80V typical in 12V automotive load dump scenarios per ISO 7637-2. Using the LTC7860EMSE#PBF without upstream transient protection risks permanent damage. To safely deploy it, pair the device with a prefault protector (like a Zener-based crowbar or TVS) that caps voltage below 60V before it reaches the LTC7860EMSE#PBF. Alternatively, consider higher-voltage alternatives such as the LTC4380 for standalone load dump tolerance.
How does the LTC7860EMSE#PBF handle thermal stress during prolonged high-current surge events in ind
The LTC7860EMSE#PBF uses an external N-channel MOSFET to manage high-current transients, shifting heat generation away from the IC. However, thermal design is critical: ensure the PCB layout includes sufficient copper area for the MOSFET and the LTC7860EMSE#PBF’s exposed pad to dissipate heat effectively. For prolonged surge events (e.g., repetitive 10/1000μs surges), monitor junction temperature using thermal vias and consider derating the current limit or adding a heatsink on the MOSFET to prevent premature aging or latch-up. Poor thermal planning can lead to cumulative damage even within datasheet limits.
Can the LTC7860EMSE#PBF replace the LT4363 in existing overvoltage protection designs without modify
Replacing the LT4363 with the LTC7860EMSE#PBF requires careful evaluation: while both control external MOSFETs for surge protection, the LTC7860EMSE#PBF features a faster transient response and adjustable clamping, which may require tuning of the sense resistor and gate driver loop. The 12-MSOP-EP package is footprint-compatible, but the enable and fault reporting logic differ. Validate timing margins for fault detection and ensure the gate drive strength (up to 1A peak) doesn’t induce ringing in existing traces. Simulate or prototype under real fault conditions before full rollout.
What are the key risks when setting the adjustable clamping voltage in the LTC7860EMSE#PBF for a 24V
When setting the clamping voltage for a 24V system using the LTC7860EMSE#PBF, the primary risk is over-clamping during normal operation due to ripple or load transients. Use a precision resistor divider with low tempco resistors to set the clamp threshold just above the maximum expected operating voltage (e.g., 32V). Avoid placing the feedback node near noisy traces to prevent false triggering. A margin of at least 15% between operating and clamp voltages is recommended to account for resistor tolerance and transient overshoot, reducing risk of unnecessary power cycling.
How does the LTC7860EMSE#PBF respond to fast transient surges (<1μs rise time) compared to integrate
The LTC7860EMSE#PBF responds typically within 50ns, making it significantly faster than most TVS diodes, which can have response delays of several hundred nanoseconds. In telecom applications with fast EFTs or ring wave events, this allows the LTC7860EMSE#PBF to limit voltage by regulating the external MOSFET, reducing stress on downstream components. However, it does not clamp as tightly as a TVS. For best protection, use the LTC7860EMSE#PBF in conjunction with a downstream TVS or capacitor bank to absorb residual energy and meet IEC 61000-4-5 compliance.
What are the reliability implications of using the LTC7860EMSE#PBF in an automotive 12V system expos
The LTC7860EMSE#PBF is rated for a 60V working voltage, which is below the 65–80V typical in 12V automotive load dump scenarios per ISO 7637-2. Using the LTC7860EMSE#PBF without upstream transient protection risks permanent damage. To safely deploy it, pair the device with a prefault protector (like a Zener-based crowbar or TVS) that caps voltage below 60V before it reaches the LTC7860EMSE#PBF. Alternatively, consider higher-voltage alternatives such as the LTC4380 for standalone load dump tolerance.
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Sep 15 2026
