DG468DV-T1-E3 - 9Ω SPST-NO Analog Switch | Vishay | TSOP-6
料号： DG468DV-T1-E3 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.62 | $0.62 |
| 10 | $0.52 | $5.20 |
| 100 | $0.41 | $41.00 |
| 500 | $0.35 | $175.00 |
| 1,000 | $0.3 | $300.00 |
DG468DV-T1-E3 概述
An analog switch is a solid-state semiconductor device that routes or blocks analog signal paths under digital logic control. In the signal-chain hierarchy, analog switches sit between passive relays and multiplexer ICs: they belong to the broader family of analog multiplexers/switches, which themselves are interface and signal-routing components within mixed-signal power and signal management. Unlike electromechanical relays, CMOS analog switches offer microsecond switching, no coil drive, and effectively unlimited mechanical life.
Key features of the DG468 include its wide supply range: operation from a single +7 V to +36 V supply or dual ±4.5 V to ±20 V supplies, enabling signal switching on high-voltage rails common in industrial systems. On-resistance is a low 9 ohms, and the device is a normally-open (NO) configuration, meaning the switch is open when the logic control input is low. Power consumption is very low, supporting battery-powered and low-standby-power designs.
The DG468 is fabricated in a CMOS process and belongs to Vishay's DG467/DG468 family: the DG467 is the normally-closed complement, while the DG468 is normally open; both share the same die technology, package, and control interface, simplifying board reuse. The small TSOP6 package with a standard SOT-23-6 footprint (approximately 1.8 mm x 1.4 mm body, 2.9 mm x 1.6 mm outline per SOT-23 family conventions) fits dense layouts.
Typical applications include audio and video signal routing, industrial PLC I/O modules, battery-management and test-equipment signal selection, communication-line switching on 24 V rails, and hot high-voltage analog front ends that exceed the range of standard 5 V switches.
When designing with this switch, respect the absolute maximum signal range relative to the supply pins: the analog signal must never exceed V+ or go below V-, or internal ESD structures will conduct and can damage the die.
This page synthesizes distributor pricing and availability, drop-in alternatives within the DG467/DG468 family, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： DG468DV-T1-E3 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
DG467DV-T1-E3
✅ 直接替换📋 参考替代料（不在目录中）
DG468DV-T1-G3
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DG468DV-T1-E3 最大额定值与电气特性
| Switch Configuration | 1 x SPST, normally open (NO) |
| Number of Circuits | 1 |
| On-Resistance (typ) | 9 Ohm |
| Single Supply Range | +7 V to +36 V |
| Dual Supply Range | +/-4.5 V to +/-20 V |
| Logic Control | TTL/CMOS compatible control input |
| Switch Type | Analog switch (CMOS) |
| 封装 | TSOP-6 (SOT-23-6 compatible footprint) |
| 安装类型 | Surface Mount |
| Quiescent Power | Low power (per datasheet) |
| Packing | Tape and Reel (T1) |
| Pb-Free / RoHS | E3 suffix = Pb-free, RoHS compliant (per Vishay suffix convention) |
DG468DV-T1-E3 引脚配置
| 引脚 1 | COM (S) — Switch common/source terminal (per DG467/DG468 TSOP-6 pin configuration) |
| 引脚 2 | GND — Ground reference |
| 引脚 3 | NO (D) — Normally-open switch terminal (drain) |
| 引脚 4 | IN — TTL/CMOS logic control input (high = switch ON) |
| 引脚 5 | V- — Negative supply (tied to GND in single-supply use) |
| 引脚 6 | V+ — Positive supply, +7 V to +36 V single or up to +20 V dual |
典型应用
DG468DV-T1-E3 适用于 6 应用s: Industrial PLC I/O Signal Switching, Audio and Video Signal Routing, Test and Measurement Signal Selection, Battery Management and High-Voltage Rail Switching, Communication Line and Telecom Switching, Sensor Front-End Channel Gating.
Industrial PLC I/O Signal Switching
The DG468DV-T1-E3 fits programmable logic controller input modules that must switch sensor signals riding on 24 V industrial rails. Its single-supply range of +7 V to +36 V lets the switch pass full-scale 24 V field signals without level shifting, while the 9 ohm on-resistance keeps insertion loss negligible for high-impedance ADC inputs. Placed ahead of an input divider or isolation stage, the normally-open configuration guarantees the channel is disconnected at power-up, and the low quiescent power suits the always-on nature of PLC backplanes. The TSOP-6 footprint integrates easily into dense per-channel I/O cards.
推荐
Audio and Video Signal Routing
In AV switchers and matrix selectors, the DG468DV-T1-E3 routes line-level audio or composite video between sources and amplifiers. The 9 ohm on-resistance introduces minimal series loss, and CMOS switching avoids the clicking and wear of electromechanical relays. Operation from dual +/-15 V supplies within the +/-4.5 V to +/-20 V range allows switching of large AC-coupled audio signals centered on ground without clipping. The normally-open action enables break-before-style channel selection when paired with control logic. Its small TSOP-6 body allows one switch per channel directly beside the RCA or terminal connectors.
推荐
Test and Measurement Signal Selection
Bench instruments, data loggers, and automated test fixtures use the DG468DV-T1-E3 to multiplex test points into a measurement front end. The wide supply range covers signals on +/-15 V analog rails common in instrumentation, and the 9 ohm path preserves accuracy into high-impedance meters. Normally-open behavior guarantees an open channel at reset, protecting the front end. Low charge on the control line reduces feedthrough during switching. The SOT-23-6-compatible footprint supports dense scanner cards, with one device per channel and shared control decoding from an FPGA or shift register.
推荐
Battery Management and High-Voltage Rail Switching
Battery-stack monitors and protection circuits often need to disconnect sense lines or balance taps that sit well above 5 V logic territory. The DG468DV-T1-E3, powered from +7 V to +36 V, switches these elevated nodes directly and draws almost no static current, which matters in always-connected battery systems. The normally-open polarity keeps sense taps isolated until the controller commands a measurement. Its TSOP-6 package and microamp-level control interface allow placement on cell-monitor boards where board area and leakage budget are both tight.
推荐
Communication Line and Telecom Switching
Legacy telecom and industrial communication lines operate on +/-48 V-derived or +/-20 V rails, exceeding standard switch ratings. Powered from dual +/-20 V supplies, the DG468DV-T1-E3 connects or isolates such lines under logic control, and its high-voltage rating gives margin against ring transients. The low on-resistance of 9 ohms adds negligible loop loss, while normally-open operation ensures the line is open-circuit in the default state for fail-safe behavior. The compact TSOP-6 package supports line-card density requirements in interface modules.
推荐
Sensor Front-End Channel Gating
Multi-sensor data-acquisition nodes use the DG468DV-T1-E3 to gate transducer outputs into a shared conditioning chain. Powered from the 24 V industrial sensor rail, it passes bridges and 4-20 mA-derived voltages without attenuation (9 ohm path into high-Z buffers), while the low quiescent power suits always-on nodes. Normally-open gating prevents unselected sensors from loading the bus. The SOT-23-6 footprint places each gate beside its connector, shortening unprotected high-voltage traces. Pair with a decoding register so a controller multiplexes channels sequentially.
推荐
推荐产品汇总
工程参考数据： DG468DV-T1-E3 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DG467DV-T1-E3 | DG468DV-T1-G3 |
|---|---|---|---|
| Package | TSOP-6 (SOT-23-6 footprint) | TSOP-6 - same | TSOP-6 - same |
| Brand | Vishay Intertechnology | Vishay Intertechnology | Vishay Intertechnology |
| Switch Polarity | Normally Open (NO) | Normally Closed (NC) | Normally Open (NO) |
| On-Resistance (typ) | 9 Ohm | 9 Ohm | 9 Ohm |
| Single Supply Range | +7 V to +36 V | +7 V to +36 V | +7 V to +36 V |
| Dual Supply Range | +/-4.5 V to +/-20 V | +/-4.5 V to +/-20 V | +/-4.5 V to +/-20 V |
| Pb-Free Termination Suffix | E3 | E3 | G3 (alternative Pb-free plating) |
| Packing | Tape & Reel (T1) | Tape & Reel (T1) | Tape & Reel (T1) |
关键差异点
- High-voltage signal domain （对比 Standard 5 V CMOS switches (e.g., generic SOT-23-6 5 V SPST))
- Polarity complement on identical footprint （对比 DG467DV-T1-E3)
- Trade-off: moderate on-resistance （对比 Low-voltage low-RON switches (< 1 ohm class))
设计说明
Power the switch so the analog signal always stays within the supply pins. For ground-referenced signals on a 24 V rail, use a single +24 V to +28 V supply; for AC signals swinging below ground, use dual supplies such as +/-15 V (well inside the +/-4.5 V to +/-20 V range). Tie V- to GND in single-supply designs. Exceeding the rails forward-biases internal ESD structures - a common cause of failed switches in 24 V field designs.
Use the standard SOT-23-6 land pattern per Vishay CAD data (approximately 1.8 mm x 1.4 mm body). Place the switch physically close to the connector it gates to minimize unprotected high-voltage trace length, and add a 100 nF ceramic decoupling capacitor directly across V+ and GND. Keep the logic control trace away from the analog path to limit control-signal feedthrough during switching transitions.
Do not assume cross-brand SPST switches in SOT-23-6 are pin-compatible - pin maps differ between vendors even at the same function; always compare the datasheet pin configuration before qualifying a substitute. If logic polarity is wrong after bring-up, the DG467 (normally closed) in the same footprint is a fast fix only if inverted control is acceptable. Estimated: verify switching times and charge injection against datasheet 74413 for fast or precision applications, as these were not captured in the source data for this page.
合规信息
E3 suffix denotes Vishay lead-free/RoHS-compliant termination. REACH, halogen-free, and conflict-minerals declarations not present in provided data - obtain official certificates from vishay.com.
