SL55003SD Equivalent & Substitute Parts

Part Overview

The SL55003SD 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 with transistor output and integrated base connection, suitable for DC input applications. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

SL55003SD

onsemiIn Stock: 1161SL55003SD Datasheet

Current PartRFQ

H11AV1SR2VM

Fairchild SemiconductorIn Stock: 12427H11AV1SR2VM Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SL55003SD optoisolator is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Single-channel configuration (Number of Channels = 1)
• Transistor output with base connection (Output Type)
• 6-SMD surface mount package with gull wing leads (Package / Case)
• DC input type (Input Type)
• Vce saturation specification of 400mV (Max)

Functional Equivalence Parameters:

• Isolation voltage rating (minimum 4170Vrms acceptable for applications not requiring full 5300Vrms)
• Current transfer ratio range (40% to 300% @ 10mA)
• Maximum output voltage (30V or higher)
• Output current capability (100mA or higher)
• Operating temperature range (-40°C to 100°C minimum)

The H11AV1SR2VM from Fairchild Semiconductor meets these substitution criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The H11AV1SR2VM optoisolator serves as a functional substitute for the obsolete SL55003SD based on the following engineering factors:

Electrical Compatibility: Both components share identical Vce saturation specifications (400mV max), matching current transfer ratio maximum (300% @ 10mA), and equivalent output type with base connection. The H11AV1SR2VM provides superior turn-on and turn-off response times (15µs vs. 20µs and 50µs respectively) and higher maximum output voltage rating (70V vs. 30V).

Isolation Rating Consideration: The H11AV1SR2VM isolation voltage of 4170Vrms is lower than the SL55003SD specification of 5300Vrms. Selection of this substitute requires confirmation that the application isolation requirement does not exceed 4170Vrms.

Product Status and Availability: The H11AV1SR2VM maintains active product status with 12,400 units in stock, compared to the SL55003SD obsolete status. This ensures long-term supply chain viability and continued manufacturer support.

Temperature Range: The H11AV1SR2VM operating range of -40°C to 100°C covers standard industrial applications. Applications requiring the full -55°C lower temperature limit of the SL55003SD require alternative evaluation.

Compliance: Both components carry identical ECCN (EAR99) and HTSUS (8541.49.8000) classifications, maintaining regulatory consistency.

Frequently Asked Questions (FAQ)

Q: Can the H11AV1SR2VM directly replace the SL55003SD in all applications?

A: Direct replacement is possible only when the application isolation requirement does not exceed 4170Vrms and the operating temperature range does not require operation below -40°C. The H11AV1SR2VM meets all other electrical and mechanical specifications for functional equivalence.

Q: What is the significance of the Current Transfer Ratio difference?

A: The H11AV1SR2VM minimum current transfer ratio of 100% @ 10mA exceeds the SL55003SD minimum of 40% @ 10mA. Both components share the same maximum ratio of 300% @ 10mA. The higher minimum ratio of the substitute provides improved consistency in optical coupling efficiency across the specified operating range.

Q: Are the 6-SMD packages physically identical?

A: Both the SL55003SD and H11AV1SR2VM use 6-SMD gull wing surface mount packages. Physical dimensions and lead spacing are compatible for PCB layout purposes. Verification of specific package dimensions against design requirements is recommended.

Q: What are the implications of the faster switching times in the H11AV1SR2VM?

A: The H11AV1SR2VM turn-on time of 15µs and turn-off time of 15µs (max) are faster than the SL55003SD specifications of 20µs and 50µs (max). Faster switching characteristics may improve system response time but do not create incompatibility with designs specified for the original component.

Q: How does the higher maximum output voltage of the H11AV1SR2VM affect compatibility?

A: The H11AV1SR2VM maximum output voltage of 70V exceeds the SL55003SD specification of 30V. This higher rating provides additional design margin and does not create incompatibility. Applications designed for 30V output operation remain fully compatible.

Q: What compliance certifications apply to both components?

A: Both the SL55003SD and H11AV1SR2VM carry identical ECCN classification (EAR99) and HTSUS code (8541.49.8000), ensuring consistent regulatory treatment in procurement and export compliance documentation.