Equivalent & Substitute Parts Reference for Vicor VI-B1Y-CY

Part Overview

The Vicor VI-B1Y-CY is an isolated module DC-DC converter with a single 3.3V output at up to 10A, designed for ITE (Commercial) applications. It accepts a 21V to 32V input range and provides up to 33W output power with a full brick package and through-hole mounting. With the product status marked as obsolete, sourcing alternative models is required for ongoing or new designs that depend on this part, especially for inventory continuity and long-term support.

Substiute Parts

VI-B1Y-CY
Vicor CorporationIn Stock: 838VI-B1Y-CY Datasheet
VI-B1Y-CY
Current Part
VI-B1Y-CY-B1
Vicor CorporationIn Stock: 771VI-B1Y-CY-B1 Datasheet
VI-B1Y-CY-B1
Similar

Key Parameters

Parameter Value
Manufacturer Part Number VI-B1Y-CY
Input Voltage (Min) 21V
Input Voltage (Max) 32V
Output Voltage 3.3V
Output Current (Max) 10A
Output Power (Watts) 33 W
Voltage Isolation 3 kV
Operating Temperature -25°C ~ 85°C
Efficiency 90%
Mounting Type Through Hole
Package / Case Full Brick
Size / Dimension 4.60" L x 2.40" W x 0.50" H
RoHS Status RoHS non-compliant
Product Status Obsolete

Substitute Part Grouping Explanation

Substitute part selection in the DC-DC converter category relies exclusively on matching the following parameters: input voltage range, output voltage, maximum output current, output power, voltage isolation, operating temperature range, efficiency, mounting type, package/case dimensions, and compliance status (RoHS, REACH, ECCN, HTSUS). Only parts meeting all these requirements can be considered direct functional replacements.

Parameter Comparison

Parameter VI-B1Y-CY VI-B1Y-CY-B1
Manufacturer Part Number VI-B1Y-CY VI-B1Y-CY-B1
Input Voltage (Min) 21V 21V
Input Voltage (Max) 32V 32V
Output Voltage 3.3V 3.3V
Output Current (Max) 10A 10A
Output Power (Watts) 33 W 33 W
Voltage Isolation 3 kV 3 kV
Operating Temperature -25°C ~ 85°C -25°C ~ 85°C
Efficiency 90% 90%
Mounting Type Through Hole Through Hole
Package / Case Full Brick Full Brick
Size / Dimension 4.60" L x 2.40" W x 0.50" H 4.60" L x 2.40" W x 1.07" H
RoHS Status RoHS non-compliant RoHS non-compliant
Product Status Obsolete Active

Engineering Selection Recommendations

The VI-B1Y-CY-B1 from Vicor Corporation is a suitable substitute for the VI-B1Y-CY when identical electrical and thermal specifications, mounting type, and compliance requirements are mandatory. Both models are RoHS non-compliant and REACH unaffected, and share the same input and output voltage ranges, current, isolation, efficiency, and package style. The substitute part is active and available in inventory, whereas the original part is obsolete.

Frequently Asked Questions (FAQ)

Q: Which electrical parameters must match when selecting a substitute for the Vicor VI-B1Y-CY?
A: Substitute components must match the input voltage range, output voltage, maximum output current, output power, voltage isolation, and efficiency.

Q: Are the mounting type and package crucial for substitution?
A: The mounting type and overall package must be identical to ensure mechanical compatibility and proper system integration.

Q: Is RoHS compliance a mandatory consideration for these substitutes?
A: Both VI-B1Y-CY and VI-B1Y-CY-B1 are RoHS non-compliant; selection must align with the application's compliance requirements.

Q: What is the main distinction between VI-B1Y-CY and VI-B1Y-CY-B1?
A: The main distinction is the product status (obsolete vs. active) and the physical height dimension in the full brick package.

Q: Can VI-B1Y-CY-B1 be used in all applications where VI-B1Y-CY was specified?
A: VI-B1Y-CY-B1 matches all specified electrical, mounting, and compliance parameters and is suitable for direct substitution within the provided criteria.

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