Toshiba Launches Quad-Channel High-Speed Standard Digital Isolators with Maximum Operating Temperature of 125°C for Industrial Equipment
May 28, 2026
Toshiba Electronic Devices & Storage Corporation
KAWASAKI, Japan—Toshiba Electronic Devices & Storage Corporation ("Toshiba") has expanded its lineup of digital isolators with DCL54xx01A series of quad-channel high-speed standard digital isolators for industrial equipment. The ten new products in the series are housed in an SOIC16-W package and deliver a maximum operating temperature of 125°C. Volume shipments start today.
The widespread adoption of silicon carbide (SiC) and gallium nitride (GaN) power devices has made it practical to design industrial equipment that operates in high-temperature conditions. However, in isolated signal transmission, electrical noise applied between input and output can cause malfunctions, which has led to growing demand for isolation devices that enable stable control signal transmission while combining high noise immunity and reliability.
Toshiba’s new digital isolators support a maximum operating temperature of 125°C. Use of the company’s proprietary magnetic coupling isolation transmission technology[1] ensures they also achieve a high common mode transient immunity (CMTI) of 150kV/μs (typ.)[2], contributing to stable equipment operation.
The new products are available in multiple channel configurations: four forward channels and zero reverse channels; three forward channels and one reverse channel; and two forward channels and two reverse channels. This flexibility allows selection for diverse applications in isolated communications interfaces for industrial automation, including I/O interfaces, motor control, and inverters.
With the introduction of these new digital isolators alongside its DCL341x0B series of standard digital isolators for industrial equipment, which feature low power consumption and mid-speed communication (up to 25Mbps) in small SSOP16 packages, Toshiba has ensured that its customers can select the most suitable products for communications speed ranges and application requirements.
Toshiba will continue to contribute to the realization of carbon neutrality by developing digital isolators for industrial and automotive equipment, and to provide high-quality isolation devices that support stable communication and control in equipment requiring electrical isolation.
Notes:
[1] A signal transmission method that integrates a modulation chip and a demodulation chip with insulation layers into a single package and uses a magnetic field to transmit signals.
[2] Measurement conditions: VI= VDDI or 0V, VCM=1500V, Ta=25°C (VDDI is VDD1 or VDD2 of the input-side)
Applications
- Industrial automation: programmable logic controllers (PLCs), I/O interfaces, etc.
- Motor control
- Inverters
- Switching power supply
Features
- High maximum operating temperature: 125°C (max)
- High common mode transient immunity: |CMTI|=150kV/μs (typ.)
- High-speed data rate: tbps=150Mbps (max)
- Quad-channel:
Four forward channels and zero reverse channels
Three forward channels and one reverse channel
Two forward channels and two reverse channels
Main Specifications
| Part number | DCL540C01A | DCL540D01A | DCL540L01A | DCL540H01A | DCL541A01A | |||
|---|---|---|---|---|---|---|---|---|
| Number of channels (Forward directions: reverse directions) |
4 (4:0) |
4 (4:0) |
4 (4:0) |
4 (4:0) |
4 (3:1) |
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| Default output logic | Low | High | Low | High | Low | |||
| Enabled control | None | None | Output Enable |
Output Enable |
Input Disable |
|||
| Package | SOIC16-W(P-SOP16-0811-1.27-002) | |||||||
| Absolute maximum ratings |
Operating temperature Topr (°C) | -40 to 125 | ||||||
| Storage temperature Tstg (°C) | -65 to 150 | |||||||
| Isolation voltage (1min.) BVS (Vrms) |
Ta=25°C | Min | 5000 | |||||
| Recommended operating conditions |
Power supply voltage VDD1, VDD2 (V) |
Topr=-40 to 125°C | 2.25 to 5.5 | |||||
| Electrical characteri stics |
Common mode transient immunity |CMTI| (kV/μs) |
VI=VDDI or 0V, VCM=1500V, Ta=25°C |
Typ. | 150 | ||||
| Data rate tbps (Mbps) |
VDD1=VDD2= 2.25 to 5.5V Ta=-40 to 125°C |
Max | 150 | |||||
| Pulse width distortion PWD (ns) |
VDD1=VDD2=5V, Ta=25°C |
Typ. | 0.8 | |||||
| Propagation delay tPHL, tPLH (ns) |
Typ. | 10.9 | ||||||
| Sample Check & Availability |  |
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| Part number | DCL541B01A | DCL541L01A | DCL541H01A | DCL542L01A | DCL542H01A | |||
|---|---|---|---|---|---|---|---|---|
| Number of channels (Forward directions: reverse directions) |
4 (3:1) |
4 (3:1) |
4 (3:1) |
4 (2:2) |
4 (2:2) |
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| Default output logic | High | Low | High | Low | High | |||
| Enabled control | Input Disable |
Output Enable |
Output Enable |
Output Enable |
Output Enable |
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| Package |
SOIC16-W(P-SOP16-0811-1.27-002) | |||||||
| Absolute maximum ratings |
Operating temperature Topr (°C) | -40 to 125 | ||||||
| Storage temperature Tstg (°C) | -65 to 150 | |||||||
| Isolation voltage (1min.) BVS (Vrms) |
Ta=25°C |
Min | 5000 | |||||
| Recommended operating conditions |
Power supply voltage VDD1, VDD2 (V) |
Topr=-40 to 125°C | 2.25 to 5.5 | |||||
| Electrical characteri stics |
Common mode transient immunity |CMTI| (kV/μs) |
VI=VDDI or 0V, VCM=1500V, Ta=25°C |
Typ. | 150 | ||||
| Data rate tbps (Mbps) |
VDD1=VDD2= 2.25 to 5.5V Ta=-40 to 125°C |
Max | 150 | |||||
| Pulse width distortion PWD (ns) |
VDD1=VDD2=5V, Ta=25°C |
Typ. | 0.8 | |||||
| Propagation delay tPHL, tPLH (ns) |
Typ. | 10.9 | ||||||
| Sample Check & Availability | |
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Follow the links below for more on the new products.
DCL540C01A
DCL540D01A
DCL540L01A
DCL540H01A
DCL541A01A
DCL541B01A
DCL541L01A
DCL541H01A
DCL542L01A
DCL542H01A
Follow the link below for more on Toshiba’s standard digital isolators.
Standard Digital Isolator
To check availability of the new products at online distributors, visit:
DCL540C01A
DCL540D01A
DCL540L01A
DCL540H01A
DCL541A01A
DCL541B01A
DCL541L01A
DCL541H01A
DCL542L01A
DCL542H01A
Customer Inquiries:
Optoelectronic Device Sales & Marketing Dept.
Tel: +81-44-548-2218
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* Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.