ISOW7840FDWER Digital Isolator Equivalent & Substitute Parts

Part Overview

The ISOW7840FDWER is a general purpose digital isolator manufactured by Texas Instruments, featuring 5000Vrms isolation voltage and 4-channel unidirectional configuration. This component is designed for applications requiring galvanic isolation with high common mode transient immunity and fast data transmission rates. The part maintains Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified based on identical electrical specifications and compatible packaging configurations to support procurement flexibility and supply chain continuity.

Substiute Parts

ISOW7840FDWER

Texas InstrumentsIn Stock: 2290ISOW7840FDWER Datasheet

Current PartRFQ

ISOW7840DWER

Texas InstrumentsIn Stock: 60364ISOW7840DWER Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISOW7840FDWER are identified through strict parametric equivalence. The substitution criteria are based on the following key parameters that must remain identical:

• Isolation voltage rating: 5000Vrms
• Channel configuration: 4 channels, unidirectional
• Data rate: 100Mbps
• Common mode transient immunity: 100kV/µs minimum
• Propagation delay specifications: 17.6ns maximum (both tpLH and tpHL)
• Pulse width distortion: 4.7ns maximum
• Supply voltage range: 3V ~ 5.5V
• Operating temperature range: -40°C ~ 125°C
• Package type: 16-SOIC (0.295", 7.50mm Width)
• Technology: Capacitive coupling
• Compliance: RoHS3 compliant, REACH unaffected

The ISOW7840DWER is identified as a parametric equivalent based on matching all electrical specifications and mechanical package requirements. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel), which does not affect functional or electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the ISOW7840FDWER and ISOW7840DWER maintain Active product status from Texas Instruments and carry identical RoHS3 compliance and REACH unaffected certifications. Selection between these parts should be based on packaging and procurement requirements rather than electrical performance, as all functional specifications are equivalent.

The ISOW7840FDWER in Tape & Reel format is suitable for high-volume automated assembly operations. The ISOW7840DWER in Cut Tape & Digi-Reel format provides flexibility for lower-volume applications or mixed component sourcing scenarios. Both parts satisfy identical electrical and thermal requirements for 5000Vrms isolation applications with 100Mbps data transmission in 16-SOIC package configurations.

Frequently Asked Questions (FAQ)

Q: Are ISOW7840FDWER and ISOW7840DWER electrically interchangeable?

A: Yes. Both parts share identical electrical specifications including isolation voltage, channel configuration, data rate, propagation delay, and operating temperature range. They are functionally equivalent for circuit design purposes.

Q: What is the difference between these substitute parts?

A: The primary difference is packaging format. ISOW7840FDWER is supplied in Tape & Reel (TR) format, while ISOW7840DWER is supplied in Cut Tape (CT) & Digi-Reel format. Both use the same 16-SOIC (0.295", 7.50mm Width) package.

Q: Can I use ISOW7840DWER as a direct replacement for ISOW7840FDWER in my design?

A: Yes, provided your assembly process can accommodate the Cut Tape & Digi-Reel packaging format. The electrical and mechanical specifications are identical, and both parts meet the same compliance standards.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes. Both parts carry MSL 3 (168 Hours) rating, requiring identical handling and storage conditions.

Q: Are there any supply chain advantages to choosing one part over the other?

A: Inventory availability may differ between packaging formats. ISOW7840DWER typically maintains higher stock levels due to its Cut Tape & Digi-Reel format flexibility, while ISOW7840FDWER in Tape & Reel format is optimized for high-volume production environments.