H11F3SD Equivalent & Substitute Parts

Part Overview

The H11F3SD 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-SMD surface mount package with a maximum output voltage of 15V and forward voltage of 1.3V typical.

The H11F3SD is classified as obsolete. Identifying suitable substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

H11F3SD

onsemiIn Stock: 16929H11F3SD Datasheet

Current PartRFQ

H11F3SR2M

onsemiIn Stock: 3283H11F3SR2M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the H11F3SD is determined by the following critical parameters:

• Number of Channels: Must remain 1 channel
• Output Type: Must be MOSFET output
• Package / Case: Must be 6-SMD, Gull Wing configuration
• Mounting Type: Must be Surface Mount
• Voltage - Output (Max): Must be 15V
• Voltage - Forward (Vf) (Typ): Must be 1.3V
• Current - DC Forward (If) (Max): Must be 60 mA
• Input Type: Must be DC

The H11F3SR2M qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. While the isolation voltage rating differs (4170Vrms versus 5300Vrms), the substitute maintains functional compatibility for applications within its specified isolation rating.

Parameter Comparison

Engineering Selection Recommendations

The H11F3SR2M is an active product from onsemi and serves as the direct substitute for the obsolete H11F3SD. Both components share the same base product number (H11F) and maintain identical electrical characteristics for output voltage, forward voltage, and forward current specifications.

The H11F3SR2M is ROHS3 compliant, whereas the H11F3SD compliance status is not specified. Both parts carry REACH Unaffected status and EAR99 ECCN classification.

Selection of the H11F3SR2M is appropriate for applications where the 4170Vrms isolation rating meets system requirements. The substitute exhibits longer switching times (45µs versus 25µs) and a narrower operating temperature range (-40°C to 100°C versus -55°C to 100°C). These differences must be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can the H11F3SR2M directly replace the H11F3SD in existing designs?

A: The H11F3SR2M maintains electrical compatibility for output voltage, forward voltage, and forward current specifications. However, the reduced isolation voltage rating (4170Vrms versus 5300Vrms) and extended switching times (45µs versus 25µs) require verification against application specifications before implementation.

Q: What is the primary difference between these two parts?

A: The primary difference is the isolation voltage rating. The H11F3SD provides 5300Vrms isolation, while the H11F3SR2M provides 4170Vrms isolation. Additionally, the H11F3SR2M has longer turn-on and turn-off times and a narrower operating temperature range.

Q: Are both parts available in the same package configuration?

A: Both parts use the 6-SMD, Gull Wing surface mount package. The H11F3SR2M is supplied in Tape & Reel (TR) packaging format, while the H11F3SD packaging format is not specified.

Q: What is the significance of the product status difference?

A: The H11F3SD is obsolete, meaning it is no longer manufactured. The H11F3SR2M is active and currently in production, making it the recommended choice for new designs and ongoing production requirements.

Q: Are there compliance differences between these parts?

A: The H11F3SR2M is ROHS3 compliant. Both parts are REACH Unaffected and carry EAR99 ECCN classification.