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Product Detailed Parameters
- Description：IC SW SPST-NOX4 85OHM 16CERDIP
- Series：-
- Mfr：Vishay Siliconix
- Package：Tube
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：85Ohm
- Channel-to-Channel Matching (ΔRon)：1.7Ohm
- Voltage - Supply, Single (V+)：4V ~ 44V
- Voltage - Supply, Dual (V±)：±4V ~ 22V
- Switch Time (Ton, Toff) (Max)：200ns, 150ns
- -3db Bandwidth：-
- Charge Injection：1pC
- Channel Capacitance (CS(off), CD(off))：5pF, 5pF
- Current - Leakage (IS(off)) (Max)：500pA
- Crosstalk：-95dB @ 100kHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：16-CDIP (0.300", 7.62mm)
- Supplier Device Package：16-CERDIP
- Number of Circuits：4
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Overview
The DG308BAK/883 is a high-reliability quad single-pole single-throw (SPST) analog switch manufactured by Vishay Siliconix. Designed for military and aerospace applications, it features four independent channels within a hermetically sealed CDIP-16 package. The device supports dual supply voltages of ±15 V with a maximum on-resistance of 85 Ohms. It exhibits a maximum turn-on time of 200 ns and a turn-off time of 150 ns. The component operates over an extended temperature range from -55°C to +125°C, drawing a maximum supply current of 1 µA.
Feature Summary
- Hermetically sealed ceramic dual in-line package ensuring environmental protection
- Quad SPST configuration providing four independent signal paths
- Extended industrial and military temperature rating capability
Applications
- Military communication systems requiring radiation-hardened or high-reliability switching
- Aerospace instrumentation and data acquisition modules
- Harsh environment test and measurement equipment
Procurement Notes
Verify the specific suffix /883 indicates compliance with MIL-PRF-38534 or equivalent military standards during sourcing. Confirm that the CDIP-16 package matches the footprint requirements of the target assembly. Ensure the supplier provides traceability documentation suitable for defense or aerospace procurement cycles.
Selection Notes
Select this component when high reliability and wide temperature operation are critical. Compare the 85 Ohm on-resistance against circuit tolerance requirements. Verify that the ±15 V dual supply constraint aligns with the system power architecture. Consider the through-hole mounting style for mechanical stability in ruggedized designs.
Part Context
This part belongs to the DG308 family of analog switches, which offers quad SPST functionality. The DG308BAK variant specifically denotes the military-grade version housed in a ceramic DIP package. It serves as a robust alternative to standard commercial grade silicon switches in demanding operational environments.
Replacement Considerations
Direct replacements include other DG308 variants such as DG308BDJ-E3 or DG308ACJ, though these may differ in temperature range or package type. Verify pin compatibility and electrical parameters before substituting non-military grade equivalents.
