Request Quote
(Ships tomorrow)
ISO7420FCCD Digital Isolator 2500Vrms 2-Channel General Purpose Equivalent & Substitute Parts
Part Overview
The ISO7420FCCD is a general purpose digital isolator manufactured by Texas Instruments, featuring 2500Vrms isolation voltage and 2-channel unidirectional configuration in an 8-SOIC package. This capacitive coupling technology device operates at 50Mbps data rate with active product status and ROHS3 compliance. Substitute parts are identified based on matching isolation voltage, channel configuration, package type, and supply voltage specifications to ensure direct functional compatibility in circuit applications.
Substiute Parts
Key Parameters
| Parameter | ISO7420FCCD |
|---|---|
| Manufacturer | Texas Instruments |
| Technology | Capacitive Coupling |
| Isolation Voltage | 2500Vrms |
| Number of Channels | 2 |
| Channel Configuration (Side 1/Side 2) | 2/0 |
| Data Rate | 50Mbps |
| Common Mode Transient Immunity | 25kV/µs |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supply Voltage | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C |
| Product Status | Active |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts are grouped based on the following critical parameters that determine functional compatibility:
Primary Matching Criteria:
- Isolation voltage: 2500Vrms (mandatory match)
- Number of channels: 2 (mandatory match)
- Package type: 8-SOIC (0.154", 3.90mm Width) (mandatory match)
- Supply voltage range: 2.7V ~ 5.5V (mandatory match)
- Common Mode Transient Immunity: 25kV/µs (mandatory match)
Secondary Variation Parameters:
- Data rate: 1Mbps, 10Mbps, or 25Mbps (application-dependent selection)
- Channel configuration: 2/0 (unidirectional, two inputs on side 1) or 1/1 (unidirectional, one input per side)
- Technology: Magnetic coupling (Analog Devices iCoupler series) versus capacitive coupling (Texas Instruments)
- Packaging format: Tube or Cut Tape (CT) & Digi-Reel
Substitute parts from Analog Devices Inc. utilize magnetic coupling technology instead of capacitive coupling but maintain electrical compatibility through matching isolation voltage, channel count, package dimensions, and supply voltage specifications.
Parameter Comparison
| Part Number | Manufacturer | Technology | Data Rate | Channel Config (1/2) | Propagation Delay Max (ns) | Pulse Width Distortion Max (ns) | Operating Temp (°C) | Packaging | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|
| ISO7420FCCD | Texas Instruments | Capacitive | 50Mbps | 2/0 | 37 | 5 | -40 to 125 | Tube | 38300 |
| ADUM1200ARZ | Analog Devices | Magnetic | 1Mbps | 2/0 | 150 | 40 | -40 to 105 | Tube | 4838 |
| ADUM1200ARZ-RL7 | Analog Devices | Magnetic | 1Mbps | 2/0 | 150 | 40 | -40 to 105 | Cut Tape & Digi-Reel | 19747 |
| ADUM1200BRZ | Analog Devices | Magnetic | 10Mbps | 2/0 | 50 | 3 | -40 to 105 | Tube | 5900 |
| ADUM1200BRZ-RL7 | Analog Devices | Magnetic | 10Mbps | 2/0 | 50 | 3 | -40 to 105 | Cut Tape & Digi-Reel | 13900 |
| ADUM1200CRZ | Analog Devices | Magnetic | 25Mbps | 2/0 | 45 | 3 | -40 to 105 | Tube | 3280 |
| ADUM1200CRZ-RL7 | Analog Devices | Magnetic | 25Mbps | 2/0 | 45 | 3 | -40 to 105 | Cut Tape & Digi-Reel | 17912 |
| ADUM1201ARZ | Analog Devices | Magnetic | 1Mbps | 1/1 | 150 | 40 | -40 to 105 | Tube | 16200 |
| ADUM1201ARZ-RL7 | Analog Devices | Magnetic | 1Mbps | 1/1 | 150 | 40 | -40 to 105 | Cut Tape & Digi-Reel | 52300 |
| ADUM1201BRZ | Analog Devices | Magnetic | 10Mbps | 1/1 | 50 | 3 | -40 to 105 | Tube | 15400 |
| ADUM1201BRZ-RL7 | Analog Devices | Magnetic | 10Mbps | 1/1 | 50 | 3 | -40 to 105 | Cut Tape & Digi-Reel | 15100 |
Engineering Selection Recommendations
Direct Substitutes for ISO7420FCCD (2/0 Channel Configuration):
The ADUM1200 series from Analog Devices provides functional equivalents with 2500Vrms isolation, 2-channel unidirectional configuration (2/0), 8-SOIC package, and 2.7V–5.5V supply voltage range. All substitute parts maintain ROHS3 compliance and REACH unaffected status.
Data Rate Selection:
- ADUM1200ARZ / ADUM1200ARZ-RL7: 1Mbps operation (lowest speed tier)
- ADUM1200BRZ / ADUM1200BRZ-RL7: 10Mbps operation (mid-range speed)
- ADUM1200CRZ / ADUM1200CRZ-RL7: 25Mbps operation (closest performance to ISO7420FCCD at 50Mbps)
Packaging Format Selection:
- Tube packaging: Standard reel format for component handling
- Cut Tape (CT) & Digi-Reel format: Automated assembly compatibility
Temperature Range Consideration: ISO7420FCCD operates to 125°C maximum; Analog Devices substitutes operate to 105°C maximum. Applications requiring operation above 105°C require the original Texas Instruments part.
Alternative Channel Configuration: ADUM1201 series provides 1/1 channel configuration (one input per side) instead of 2/0. This alternative is suitable only for applications requiring bidirectional isolation capability.
Frequently Asked Questions (FAQ)
Q: Can ADUM1200 series parts directly replace ISO7420FCCD in existing designs?
A: ADUM1200 series parts with 2/0 channel configuration (ADUM1200ARZ, ADUM1200BRZ, ADUM1200CRZ and their -RL7 variants) are pin-compatible and functionally equivalent for circuits designed for 2-channel unidirectional isolation. Both maintain 2500Vrms isolation voltage, 8-SOIC package dimensions, and 2.7V–5.5V supply voltage compatibility. Magnetic coupling technology substitutes for capacitive coupling without affecting circuit operation at the specified electrical parameters.
Q: What is the difference between ADUM1200 and ADUM1201 series?
A: ADUM1200 series provides 2/0 channel configuration (two inputs on side 1, zero on side 2), matching ISO7420FCCD. ADUM1201 series provides 1/1 channel configuration (one input per side), enabling bidirectional isolation. Channel configuration determines signal flow direction and is not interchangeable without circuit redesign.
Q: Why do ADUM1200 parts have lower maximum operating temperature than ISO7420FCCD?
A: ISO7420FCCD operates to -40°C to 125°C; ADUM1200 series operates to -40°C to 105°C. Applications requiring sustained operation above 105°C must use the original ISO7420FCCD part or verify thermal performance requirements against actual operating conditions.
Q: What is the difference between Tube and Cut Tape (CT) & Digi-Reel packaging?
A: Tube packaging is standard for manual component handling and small-volume assembly. Cut Tape & Digi-Reel format is optimized for automated pick-and-place assembly equipment. Electrical specifications are identical; packaging selection depends on assembly process requirements.
Q: How do data rate differences affect substitution?
A: ISO7420FCCD operates at 50Mbps. ADUM1200CRZ at 25Mbps provides the closest performance match. Lower data rate parts (1Mbps, 10Mbps) are suitable for applications with reduced bandwidth requirements. Higher data rate capability is not required for lower-speed applications and does not affect compatibility.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. ISO7420FCCD and all ADUM1200/ADUM1201 series parts listed are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for component selection.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts