SL5511SD Equivalent & Substitute Parts

Part Overview

The SL5511SD is an optoisolator transistor with base 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 gull wing leads. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

SL5511SD

onsemiIn Stock: 764SL5511SD Datasheet

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H11AV1SR2M

onsemiIn Stock: 2309H11AV1SR2M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SL5511SD is determined by the following critical parameters:

• Isolation Voltage Rating: The substitute must maintain isolation capability at or above the application requirement. The SL5511SD specifies 5300Vrms isolation.
• Output Configuration: The substitute must provide transistor with base output to maintain circuit compatibility.
• Package Type: The substitute must use 6-SMD surface mount packaging with gull wing leads for PCB compatibility.
• Number of Channels: Single channel configuration is required.
• Vce Saturation: Maximum saturation voltage of 400mV or lower ensures switching performance compatibility.
• Operating Temperature Range: The substitute must support the required temperature envelope.

The H11AV1SR2M qualifies as a substitute based on matching output type, package configuration, and saturation characteristics, despite a lower isolation voltage rating of 4170Vrms. This substitution is valid only for applications where the lower isolation rating is acceptable within the system design margins.

Parameter Comparison

Engineering Selection Recommendations

The H11AV1SR2M is an active product from onsemi and represents the primary substitute option for the obsolete SL5511SD. Both components share identical package configuration, output type, and saturation voltage characteristics, enabling direct PCB layout compatibility.

The H11AV1SR2M demonstrates superior performance in several areas: higher current transfer ratio (100% minimum versus 25% minimum), faster switching times (15µs maximum versus 50µs maximum turn-off), and higher maximum output voltage (70V versus 30V). The component is RoHS3 compliant and maintains REACH unaffected status.

The primary design consideration is the reduced isolation voltage rating of 4170Vrms compared to the SL5511SD specification of 5300Vrms. This substitution is valid only when system isolation requirements can be met at the lower voltage rating. The H11AV1SR2M's lower minimum operating temperature of -40°C versus -55°C should be verified against application requirements.

Frequently Asked Questions (FAQ)

Q: Can the H11AV1SR2M directly replace the SL5511SD in existing designs?

A: Direct PCB replacement is possible due to identical 6-SMD gull wing packaging. However, the reduced isolation voltage rating of 4170Vrms must be evaluated against the original design's isolation requirements. If the application requires 5300Vrms isolation, this substitute is not suitable.

Q: What are the key performance differences between these components?

A: The H11AV1SR2M offers faster switching response (15µs maximum turn-off versus 50µs), higher current transfer ratio (100% minimum versus 25%), and higher output voltage capability (70V versus 30V). The SL5511SD provides higher isolation voltage (5300Vrms versus 4170Vrms).

Q: Are there temperature range considerations for substitution?

A: The H11AV1SR2M operates from -40°C to 100°C, while the SL5511SD operates from -55°C to 100°C. Applications requiring operation below -40°C cannot use the H11AV1SR2M as a substitute.

Q: What compliance certifications apply to the H11AV1SR2M?

A: The H11AV1SR2M is RoHS3 compliant and REACH unaffected. Both components carry EAR99 ECCN classification and HTSUS code 8541.49.8000.

Q: Does packaging format differ between these components?

A: Both components use identical 6-SMD surface mount packaging with gull wing leads. The H11AV1SR2M is supplied in Tape & Reel format, while the SL5511SD packaging format was not specified in available data.