ISO7841FDWWR Equivalent & Substitute Parts

Part Overview

The ISO7841FDWWR is a general purpose digital isolator manufactured by Texas Instruments, featuring 5700Vrms isolation voltage and 4 channels with 100Mbps data rate capability. This device utilizes capacitive coupling technology and is rated for operating temperatures from -55°C to 125°C. The part is currently in active production status with ROHS3 compliance and REACH unaffected classification. Substitute parts are identified when design requirements allow for reduced channel count or alternative channel configurations while maintaining core electrical and mechanical compatibility.

Substiute Parts

ISO7841FDWWR

Texas InstrumentsIn Stock: 90162ISO7841FDWWR Datasheet

Current PartRFQ

ISO7830DWWR

Texas InstrumentsIn Stock: 3990ISO7830DWWR Datasheet

Parametric EquivalentRFQ

ISO7831FDWWR

Texas InstrumentsIn Stock: 4252ISO7831FDWWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISO7841FDWWR are qualified based on the following criteria:

Maintained Parameters (Required for Substitution):

• Isolation voltage: 5700Vrms
• Common Mode Transient Immunity: 100kV/µs minimum
• Data rate: 100Mbps
• Propagation delay: 16ns maximum (tpLH and tpHL)
• Pulse width distortion: 4.1ns maximum
• Rise/fall time: 1.7ns / 1.9ns typical
• Supply voltage range: 2.25V ~ 5.5V
• Operating temperature range: -55°C ~ 125°C
• Package: 16-SOIC (0.551", 14.00mm Width)
• Mounting type: Surface Mount
• Technology: Capacitive Coupling
• Type: General Purpose
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 2 (1 Year)

Variable Parameters (Allowed to Differ):

• Number of channels: 3 or 4
• Channel configuration (Inputs - Side 1/Side 2): Different distributions allowed
• Packaging format: Tape & Reel acceptable as alternative to standard packaging

The ISO7830DWWR and ISO7831FDWWR are qualified substitutes when applications require 3-channel configurations instead of 4 channels, with identical electrical performance and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts—ISO7841FDWWR, ISO7830DWWR, and ISO7831FDWWR—maintain active production status with identical compliance certifications (ROHS3 Compliant, REACH Unaffected). Selection between these parts depends solely on channel count and channel configuration requirements:

• ISO7841FDWWR: Select when 4-channel isolation with 3 inputs on Side 1 and 1 input on Side 2 is required.
• ISO7830DWWR: Select when 3-channel isolation with all inputs on Side 1 is required. Available in Tape & Reel packaging.
• ISO7831FDWWR: Select when 3-channel isolation with 2 inputs on Side 1 and 1 input on Side 2 is required. Available in Tape & Reel packaging.

All parts share identical electrical performance characteristics, thermal ratings, and mechanical compatibility within the 16-SOIC package footprint.

Frequently Asked Questions (FAQ)

Q: Can ISO7830DWWR or ISO7831FDWWR replace ISO7841FDWWR in existing designs?

A: Substitution is possible only if the application requires 3 channels or fewer. The electrical performance, isolation voltage, data rate, and timing characteristics are identical. PCB layout compatibility is maintained due to identical 16-SOIC package dimensions.

Q: What is the difference between ISO7830DWWR and ISO7831FDWWR?

A: Both are 3-channel devices with identical electrical specifications. The difference is in channel configuration: ISO7830DWWR has all 3 inputs on Side 1 (3/0 configuration), while ISO7831FDWWR has 2 inputs on Side 1 and 1 input on Side 2 (2/1 configuration). Select based on isolation barrier placement requirements in your circuit.

Q: Are there packaging differences between these parts?

A: ISO7841FDWWR is available in standard packaging. ISO7830DWWR and ISO7831FDWWR are available in Tape & Reel (TR) format. Both packaging formats are compatible with automated assembly processes and maintain identical component specifications.

Q: Do all three parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 Compliant, REACH Unaffected, with EAR99 ECCN classification and identical Moisture Sensitivity Level (MSL) rating of 2 (1 Year).

Q: What is the primary reason to select a substitute part?

A: Channel count and channel configuration are the primary selection criteria. If your design requires fewer than 4 isolated channels or a different input distribution across the isolation barrier, the 3-channel alternatives provide cost optimization while maintaining full electrical and thermal compatibility.