Size Dimen­sions L
(mm)
W
(mm)
H
(mm)
Mount
EXT. SOIC 16WB
10.3 10.3 2.65 SMT
SOIC 8NB
4.9 6 1.8 SMT
SOIC 8WB
5.85 11.5 2.8 SMT

Characteristics

  • 2- and 4-channel digital isolators
  • Isolation voltage up to 5000 VRMS
  • Basic (SOIC-8NB) and reinforced (SOIC-16WB) insulation
  • Signal transmission in high-speed applications (data rate up to 150 Mbps)
  • High level of immunity to system noise (CMTI ±150 kV/μs)
  • Industrial standard package and pin configuration
  • UL 1577 recognized
  • DIN EN IEC 60747-17 (VDE 0884-17) certification

Applications

  • Isolated communication interfaces (SPI, CAN, RS-232, RS-485)
  • Motor Control
  • Industrial SMPS
  • Test and measurement systems
  • Microcontroller and DSP application
  • Industrial automation
  • Programmable logic controller (PLC) interfaces
  • Battery management systems
  • Solar inverters
  • Level shifters

Safety First! The Digital Isolator Flyer


- The complete digital isolator portfolio of Würth Elektronik
- Application examples for CAN and SPI interfaces
- Evaluation boards for 4-channel isolators with integrated DC/DC converter
- Information about UL and VDE certifications

Learn More

Products

All
SOIC 16WB
SOIC 8NB
SOIC 8WB
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Data­sheet
Simu­lation
Downloads
Status
VCC min. (V)
VCC max. (V)
Channel Configuration
tPLH, tPHL (ns)
DR (Mbps)
CMTI (kV/µs)
VISO (V (RMS))
Default Output
Samples
WPME-CDIS Capacitive Digital Isolator Standard
18014015401H
2.375 V, 5.5 V, 4/0
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 4/0 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18014015401L
2.375 V, 5.5 V, 4/0
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 4/0 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output Low 
WPME-CDIS Capacitive Digital Isolator Standard
18014115401H
2.375 V, 5.5 V, 3/1
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 3/1 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18014115401L
2.375 V, 5.5 V, 3/1
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 3/1 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output Low 
WPME-CDIS Capacitive Digital Isolator Standard
18014215401H
2.375 V, 5.5 V, 2/2
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 2/2 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18014215401L
2.375 V, 5.5 V, 2/2
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 2/2 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output Low 
WPME-CDIS Capacitive Digital Isolator Standard
18012015411H
2.375 V, 5.5 V, 2/0
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 2/0 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 3750 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18012015411L
2.375 V, 5.5 V, 2/0
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 2/0 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 3750 V (RMS)
Default Output Low 
WPME-CDIS Capacitive Digital Isolator Standard
18012115411H
2.375 V, 5.5 V, 1/1
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 1/1 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 3750 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18012115411L
2.375 V, 5.5 V, 1/1
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 1/1 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 3750 V (RMS)
Default Output Low 
WPME-CDIS Capacitive Digital Isolator Standard
18012015421H
2.375 V, 5.5 V, 2/0
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 2/0 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18012015421L
2.375 V, 5.5 V, 2/0
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 2/0 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output Low 
WPME-CDIS Capacitive Digital Isolator Standard
18012115421H
2.375 V, 5.5 V, 1/1
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 1/1 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18012115421L
2.375 V, 5.5 V, 1/1
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 2.375 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 1/1 
Propagation delay 12 ns
Data Rate 150 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output Low 
WPME-CDIS Capacitive Digital Isolator Standard
18016004401H
3 V, 5.5 V, 6/0
Simu­lation
Status New i | Product is new in our portfolio and production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 3 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 6/0 
Propagation delay 22 ns
Data Rate 40 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18016004401L
3 V, 5.5 V, 6/0
Simu­lation
Status New i | Product is new in our portfolio and production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 3 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 6/0 
Propagation delay 22 ns
Data Rate 40 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output Low 
WPME-CDIS Capacitive Digital Isolator Standard
18016104401H
3 V, 5.5 V, 5/1
Simu­lation
Status New i | Product is new in our portfolio and production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 3 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 5/1 
Propagation delay 22 ns
Data Rate 40 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18016104401L
3 V, 5.5 V, 5/1
Simu­lation
Status New i | Product is new in our portfolio and production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 3 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 5/1 
Propagation delay 22 ns
Data Rate 40 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output Low 
WPME-CDIS Capacitive Digital Isolator Standard
18016204401H
3 V, 5.5 V, 4/2
Simu­lation
Status New i | Product is new in our portfolio and production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 3 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 4/2 
Propagation delay 22 ns
Data Rate 40 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18016204401L
3 V, 5.5 V, 4/2
Simu­lation
Status New i | Product is new in our portfolio and production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 3 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 4/2 
Propagation delay 22 ns
Data Rate 40 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output Low 
WPME-CDIS Capacitive Digital Isolator Standard
18016304401H
3 V, 5.5 V, 3/3
Simu­lation
Status New i | Product is new in our portfolio and production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 3 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 3/3 
Propagation delay 22 ns
Data Rate 40 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output High 
WPME-CDIS Capacitive Digital Isolator Standard
18016304401L
3 V, 5.5 V, 3/3
Simu­lation
Status New i | Product is new in our portfolio and production is active. Expected lifetime: >10 years.
Operating Supply Voltage Min. 3 V
Operating Supply Voltage Max. 5.5 V
Channel Configuration 3/3 
Propagation delay 22 ns
Data Rate 40 Mbps
Common Mode Transient Immunity 150 kV/µs
Isolation Voltage 5000 V (RMS)
Default Output Low 

On-Off Keying (OOK)

Enhancing Digital Isolation

Keep Your Signal Noise-proof

Digital isolators play a Important role in modern electronics, ensuring the safe transfer of data and power between different circuits while maintaining electrical isolation. One of the key decisions when designing digital isolators is choosing the modulation scheme that best suits the application.

The WPME-CDIx series offer an On-Off Keying (OOK) modulation technique to transmit data from the Input to the Output side. It is a technique where data is encoded by switching the output between two distinct levels - typically high and low. This simplicity translates to lower complexity in both the transmitting and receiving ends of the isolator. The binary nature of OOK means that it is relatively resistant to amplitude variations caused by noise. This robustness ensures that data transmission remains reliable, even in noisy environments.

Between two parallel angular IN and OUT curves there is a red signal curve that has a short frequency during the high phase of the IN and OUT curve and then becomes constant again.

Service & Support

Do you have questions or suggestions on the topics of design-in support, PCB layout review, EMC filters or thermal design? We will be happy to help you!

With just a few details, we can answer your enquiry.

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  • Product related & application specific support by hotline
  • Troubleshooting and individual design solutions
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  • Individual review of customer layouts
  • Reference layout given in every datasheet
 A drawn filter surrounded by a red square
  • Solution for conducted & radiated emissions
  • Tested filter configurations for EN55032 / CISPR-32 class B compliance
  • Real EMI behavior shown as well as gain and phase response of EMI filter shown on REDEXPERT
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  • Temperature distribution
  • Total power handling
  • Thermal behaviour of power modulesas well as interactive power loss chart on shown on REDEXPERT

Videos

Webinar: Digital isolators – The Next Step in Signal Protection

Videos

Galvanically isolated voltage measurement made easy with digital isolators.