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DG418BAK
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Product Detailed Parameters
- Description：IC SW SPST-NOX1 25OHM 8CERDIP
- Series：-
- Mfr：Vishay Siliconix
- Package：Tube
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：25Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：13V ~ 36V
- Voltage - Supply, Dual (V±)：±7V ~ 22V
- Switch Time (Ton, Toff) (Max)：89ns, 80ns
- -3db Bandwidth：-
- Charge Injection：38pC
- Channel Capacitance (CS(off), CD(off))：12pF, 12pF
- Current - Leakage (IS(off)) (Max)：250pA
- Crosstalk：-
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Package / Case：8-CDIP (0.300", 7.62mm)
- Supplier Device Package：8-CERDIP
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The DG418BAK is a precision single-channel SPST analog switch manufactured by Vishay Siliconix. It operates with dual supply voltages ranging from ±15 V to ±20 V and supports single supplies up to 36 V. The device features a maximum on-resistance of 35 Ohms, ensuring signal integrity in precision applications. Switching performance includes a maximum turn-on time of 175 ns and a maximum turn-off time of 145 ns. It is housed in an 8-pin ceramic DIP package (CDIP-8) suitable for through-hole mounting. The component handles a continuous DC switch current of 30 mA and dissipates up to 600 mW of power. It functions within an extended temperature range of -55 °C to +125 °C.
Feature Summary
- Precision monolithic CMOS construction providing low leakage and high isolation
- Extended industrial and military temperature range capability
- Single-channel configuration optimized for signal routing
Applications
- High-precision data acquisition systems
- Instrumentation signal conditioning
- Telecommunications switching matrices
Procurement Notes
Verify the specific suffix 'AK' indicates the ceramic DIP package variant when sourcing. Confirm RoHS compliance status as older manufacturing runs may differ. Check current lifecycle status as this part number may be discontinued or subject to last-time buy notices. Ensure the supplier provides original manufacturer documentation to validate authenticity.
Selection Notes
Select this component when a single-pole single-throw switch with high voltage tolerance and precision resistance is required. Compare against the DG418BDY series if surface mount packaging is preferred. Consider the DG419 series if lower on-resistance is necessary for different impedance matching requirements. Verify that the 35 Ohm on-resistance meets the specific application's signal loss constraints.
Part Context
This component belongs to the DG418 family of precision analog switches from Vishay Siliconix. The family shares similar electrical characteristics but varies in package type and channel count. The DG418BAK specifically denotes the through-hole ceramic DIP version, distinguishing it from plastic DIP or surface mount SOIC variants within the same product line.
Replacement Considerations
The DG418DJ-E3 is a documented pin-compatible alternative in a plastic DIP-8 package. The DG418AK-E3 is another variant in the CDIP-8 package with similar specifications. Verify pinout compatibility and thermal dissipation differences before substituting.
