ISOW7842FDWER Equivalent & Substitute Parts

Part Overview

The ISOW7842FDWER is a General Purpose Digital Isolator manufactured by Texas Instruments, featuring 5000Vrms isolation voltage and 4 channels with 100Mbps data rate capability. This component is designed for applications requiring galvanic isolation in digital signal transmission across isolated domains. The part is currently in Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for this product category.

Substiute Parts

ISOW7842FDWER

Texas InstrumentsIn Stock: 21015ISOW7842FDWER Datasheet

Current PartRFQ

ISOW7842DWER

Texas InstrumentsIn Stock: 580352ISOW7842DWER Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISOW7842FDWER is determined by strict equivalence across the following critical parameters: isolation voltage rating (5000Vrms), channel count (4 channels), data rate (100Mbps), common mode transient immunity (100kV/µs minimum), supply voltage range (3V to 5.5V), operating temperature range (-40°C to 125°C), package configuration (16-SOIC with 0.295" width), and technology platform (Capacitive Coupling). The substitute part must maintain identical channel architecture (2 inputs per side, unidirectional), propagation delay specifications (17.6ns maximum), pulse width distortion (4.7ns maximum), and rise/fall time characteristics (2ns typical). Compliance certifications including RoHS3 and REACH status must be equivalent. Packaging format (Cut Tape and Digi-Reel) and moisture sensitivity level (MSL 3) must match the original specification.

Parameter Comparison

Engineering Selection Recommendations

The ISOW7842DWER is a direct parametric equivalent to the ISOW7842FDWER. Both components share identical electrical specifications, package configuration, and compliance certifications. Selection between these parts should be based on inventory availability and supply chain considerations. The ISOW7842DWER maintains Active product status with full RoHS3 compliance and REACH unaffected designation, ensuring regulatory compliance equivalent to the primary part. Both components are manufactured by Texas Instruments using identical Capacitive Coupling technology and meet all specified isolation, timing, and thermal requirements for equivalent system integration.

Frequently Asked Questions (FAQ)

Q: What determines if a part can substitute for the ISOW7842FDWER? A: A substitute part must match all critical parameters: 5000Vrms isolation voltage, 4-channel configuration, 100Mbps data rate, 100kV/µs CMTI, 3V to 5.5V supply range, -40°C to 125°C operating temperature, 16-SOIC package, and identical timing specifications (17.6ns propagation delay, 4.7ns PWD, 2ns rise/fall time).

Q: Are the ISOW7842FDWER and ISOW7842DWER pin-compatible? A: Yes. Both parts use the 16-SOIC (0.295", 7.50mm Width) package with identical pinout and electrical characteristics, enabling direct board-level substitution.

Q: Do both parts meet the same compliance requirements? A: Yes. Both the ISOW7842FDWER and ISOW7842DWER are RoHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification with identical HTSUS coding.

Q: What is the difference between the ISOW7842FDWER and ISOW7842DWER part numbers? A: The part numbers differ in their suffix designation, but both components are manufactured by Texas Instruments with identical electrical and mechanical specifications. The difference reflects packaging or distribution channel variations.

Q: Can these parts be used in high-temperature applications? A: Yes. Both parts operate across the -40°C to 125°C temperature range, supporting industrial and automotive thermal environments within this specification.

Q: What is the moisture sensitivity level for these components? A: Both parts carry MSL 3 rating with a 168-hour floor life, requiring standard moisture control handling during storage and assembly.