H11F1W Equivalent & Substitute Parts

Part Overview

The H11F1W is an optoisolator with MOSFET output manufactured by onsemi, designed for high-voltage isolation applications requiring 5300Vrms isolation rating. This component features a single-channel configuration in a 6-DIP through-hole package and is rated for operating temperatures from -55°C to 100°C. The H11F1W is classified as obsolete, making identification of functionally compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

H11F1W

onsemiIn Stock: 1099H11F1W Datasheet

Current PartRFQ

H11F1TVM

Fairchild SemiconductorIn Stock: 1457H11F1TVM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the H11F1W is determined by the following critical parameters:

• Isolation Voltage Rating: The substitute must meet or exceed the 5300Vrms isolation requirement
• Output Type: MOSFET output configuration must be maintained
• Package / Case: 6-DIP through-hole package is required for mechanical compatibility
• Number of Channels: Single-channel configuration
• Input Type: DC input operation
• Maximum Output Voltage: 30V rating
• Forward Voltage and Current: Vf 1.3V typical and If 60 mA maximum

The H11F1TVM is identified as a direct substitute based on matching output type (MOSFET), package configuration (6-DIP), channel count (1), input type (DC), and electrical output specifications. However, the isolation voltage rating of the H11F1TVM is 4170Vrms, which is lower than the H11F1W specification of 5300Vrms.

Parameter Comparison

Engineering Selection Recommendations

The H11F1W is obsolete, and the H11F1TVM is the identified substitute with active product status. Both components share identical package configuration (6-DIP through-hole), output type (MOSFET), channel count (1), and input type (DC). Both components carry the same export classification (EAR99) and tariff code (8541.49.8000).

Key differences exist in isolation voltage rating, switching speed, and operating temperature range. The H11F1TVM provides 4170Vrms isolation compared to the H11F1W specification of 5300Vrms. The H11F1TVM exhibits slower switching characteristics with 45µs turn-on and turn-off times versus 25µs for the H11F1W. The H11F1TVM operating temperature range is -40°C to 100°C, compared to -55°C to 100°C for the H11F1W.

Selection of the H11F1TVM as a substitute requires confirmation that the reduced isolation voltage rating and extended switching time are acceptable for the specific application circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can the H11F1TVM directly replace the H11F1W in existing designs?

A: The H11F1TVM shares the same 6-DIP package, MOSFET output configuration, and DC input type as the H11F1W. However, the isolation voltage rating is reduced from 5300Vrms to 4170Vrms, and switching speed is slower (45µs versus 25µs). Direct replacement is possible only if the application circuit operates within these reduced specifications.

Q: What is the significance of the isolation voltage difference between these parts?

A: Isolation voltage rating determines the maximum voltage differential that can be safely applied across the optoisolator's isolation barrier. The H11F1W supports 5300Vrms isolation, while the H11F1TVM supports 4170Vrms. Applications requiring the higher isolation rating cannot use the H11F1TVM as a substitute.

Q: Are there package compatibility concerns between these parts?

A: Both the H11F1W and H11F1TVM use identical 6-DIP (0.400", 10.16mm) through-hole packages. No package-related modifications are required for mechanical compatibility.

Q: How do the switching characteristics compare?

A: The H11F1W has turn-on and turn-off times of 25µs maximum, while the H11F1TVM has 45µs maximum. Applications with timing-critical switching requirements may be affected by this difference.

Q: What is the operating temperature range difference?

A: The H11F1W operates from -55°C to 100°C, while the H11F1TVM operates from -40°C to 100°C. Applications requiring operation below -40°C cannot use the H11F1TVM.

Q: Are both parts subject to the same export regulations?

A: Yes, both the H11F1W and H11F1TVM carry the same ECCN classification (EAR99) and HTSUS tariff code (8541.49.8000).