SFH6186-5T1 Equivalent & Substitute Parts

Part Overview

The SFH6186-5T1 is an optoisolator with transistor output manufactured by Vishay Semiconductor Opto Division. This component provides 5300Vrms isolation voltage in a 4-SMD surface mount package, designed for single-channel DC input applications requiring galvanic isolation. The part is active and in production, with 987 units currently in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to availability constraints, supply chain considerations, or packaging format preferences.

Substiute Parts

SFH6186-5T1

Vishay Semiconductor Opto DivisionIn Stock: 1089SFH6186-5T1 Datasheet

Current PartRFQ

SFH6186-5T

Vishay Semiconductor Opto DivisionIn Stock: 2006SFH6186-5T Datasheet

Parametric EquivalentRFQ

SFH6186-5X001T

Vishay Semiconductor Opto DivisionIn Stock: 4480SFH6186-5X001T Datasheet

Parametric EquivalentRFQ

SFH618A-5X007T

Vishay Semiconductor Opto DivisionIn Stock: 2993SFH618A-5X007T Datasheet

Parametric EquivalentRFQ

SFH618A-5X017T

Vishay Semiconductor Opto DivisionIn Stock: 12780SFH618A-5X017T Datasheet

Parametric EquivalentRFQ

SFH618A-4XSMT&R

Isocom Components 2004 LTDIn Stock: 2238SFH618A-4XSMT&R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFH6186-5T1 are classified based on strict electrical and mechanical parameter equivalence. The primary substitution criteria are:

Parametric Equivalents (Vishay SFH6186 and SFH618A Series): Parts SFH6186-5T, SFH6186-5X001T, SFH618A-5X007T, and SFH618A-5X017T maintain identical electrical specifications including 5300Vrms isolation voltage, 250-500% current transfer ratio, 55V maximum output voltage, and 50mA output current. These parts differ only in packaging format (Cut Tape vs. Tape & Reel) and manufacturing date codes, allowing direct functional substitution. All maintain the same 4-SMD gull wing package footprint and surface mount compatibility.

Manufacturer-Recommended Alternative (Isocom SFH618A-4XSMT&R): This part represents a functional alternative from a different manufacturer (Isocom Components 2004 LTD) with the same 5300Vrms isolation voltage, single-channel transistor output, 4-SMD package, and 50mA output current capability. However, this alternative exhibits reduced current transfer ratio performance (160-320% @ 1mA versus 250-500%), lower maximum forward voltage specification (1.5V vs. 1.1V typical), and a narrower operating temperature range (-30°C to 100°C versus -55°C to 100°C). These differences require design verification before substitution.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Vishay SFH6186-5T, SFH6186-5X001T, SFH618A-5X007T, SFH618A-5X017T): These parts are electrically and mechanically identical to the SFH6186-5T1 and support direct substitution without design modification. All maintain active product status, ROHS3 compliance, and REACH unaffected classification. Selection among these variants depends on packaging format availability: SFH6186-5T offers Cut Tape and Digi-Reel options for lower-volume applications, while SFH6186-5X001T, SFH618A-5X007T, and SFH618A-5X017T provide Tape & Reel packaging for automated assembly. The SFH618A-5X017T variant offers the highest current inventory (12,690 units).

Conditional Substitution (Isocom SFH618A-4XSMT&R): This alternative is suitable only when the reduced current transfer ratio range (160-320% versus 250-500%), higher forward voltage (1.5V maximum versus 1.1V typical), and narrower temperature range (-30°C to 100°C versus -55°C to 100°C) are acceptable within the application circuit design. The part maintains 5300Vrms isolation, 50mA output current, and 4-SMD package compatibility. This option requires circuit-level verification before implementation.

Frequently Asked Questions (FAQ)

Q: Can SFH6186-5T be used as a direct replacement for SFH6186-5T1?

A: Yes. Both parts are manufactured by Vishay with identical electrical specifications including 5300Vrms isolation voltage, 250-500% current transfer ratio, 55V maximum output voltage, and 50mA output current. The only difference is packaging format: SFH6186-5T uses Cut Tape and Digi-Reel, while SFH6186-5T1 uses standard Tape & Reel. The 4-SMD gull wing package footprint is identical, supporting direct PCB substitution.

Q: What are the key differences between Vishay and Isocom variants?

A: The Isocom SFH618A-4XSMT&R maintains the same 5300Vrms isolation voltage and 4-SMD package but exhibits lower current transfer ratio performance (160-320% versus 250-500%), higher forward voltage specification (1.5V maximum versus 1.1V typical), and a narrower operating temperature range (-30°C to 100°C versus -55°C to 100°C). These differences require design verification before substitution.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the SFH6186-5T1 regulatory classification.

Q: Which substitute part offers the best availability?

A: The SFH618A-5X017T variant provides the highest current inventory at 12,690 units, followed by SFH6186-5X001T with 4,400 units. Both are Vishay products with identical electrical specifications to the SFH6186-5T1.

Q: Can the SFH618A-4XSMT&R be used in applications requiring -55°C operation?

A: No. The Isocom SFH618A-4XSMT&R has a minimum operating temperature of -30°C, making it unsuitable for applications requiring -55°C operation. The Vishay variants (SFH6186-5T, SFH6186-5X001T, SFH618A-5X007T, SFH618A-5X017T) support the full -55°C to 100°C range.

Q: Do all parts use the same 4-SMD gull wing package?

A: Yes. All listed parts use identical 4-SMD gull wing surface mount packages with the same PCB footprint, supporting direct mechanical substitution without layout modification.