VI-B61-EX Equivalent & Substitute Parts Reference

Part Overview

The Vicor Corporation VI-B61-EX is an isolated module DC-DC converter providing a single 12V output at up to 6.25A with a 200V to 400V input range and a maximum power output of 75W. It is classified as obsolete, and locating a direct substitute is necessary to maintain system function, address end-of-life (EOL) status, or ensure continued production and repair in applications requiring this part.

Key Parameters

Manufacturer Part Number	Manufacturer	Series	Type	Number of Outputs	Voltage - Input (Min)	Voltage - Input (Max)	Voltage - Output 1	Current - Output (Max)	Power (Watts)	Voltage - Isolation	Features	Operating Temperature	Efficiency	Mounting Type	Package / Case	Size / Dimension	RoHS Status
VI-B61-EX	Vicor Corporation	VI-200™ (75W)	Isolated Module	1	200V	400V	12V	6.25A	75 W	3 kV	OCP, OTP, OVP, SCP	-10°C ~ 85°C	88%	Through Hole	Full Brick	4.60" L x 2.40" W x 0.50" H (116.8mm x 61.0mm x 12.7mm)	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution within the DC-DC converter category is determined strictly by the following key parameters:

Manufacturer
Series
Type (Isolated Module)
Number of Outputs
Voltage - Input (Min and Max)
Voltage - Output 1
Current - Output (Max)
Power (Watts)
Voltage - Isolation
Features (OCP, OTP, OVP, SCP)
Operating Temperature
Efficiency
Mounting Type
Package / Case
Size / Dimension
RoHS Status

A substitute part must match all listed parameters to be considered equivalent.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Type	Number of Outputs	Voltage - Input (Min)	Voltage - Input (Max)	Voltage - Output 1	Current - Output (Max)	Power (Watts)	Voltage - Isolation	Features	Operating Temperature	Efficiency	Mounting Type	Package / Case	Size / Dimension	RoHS Status
VI-B61-EX	Vicor Corporation	VI-200™ (75W)	Isolated Module	1	200V	400V	12V	6.25A	75 W	3 kV	OCP, OTP, OVP, SCP	-10°C ~ 85°C	88%	Through Hole	Full Brick	4.60" L x 2.40" W x 0.50" H (116.8mm x 61.0mm x 12.7mm)	RoHS non-compliant
VI-B61-EX-B1	Vicor Corporation	VI-200™ (75W)	Isolated Module	1	200V	400V	12V	6.25A	75 W	3 kV	OCP, OTP, OVP, SCP	-10°C ~ 85°C	88%	Through Hole	Full Brick	4.60" L x 2.40" W x 1.07" H (116.8mm x 61.0mm x 27.1mm)	RoHS non-compliant

Engineering Selection Recommendations

The VI-B61-EX is designated as obsolete, and the alternative VI-B61-EX-B1 is active. Both parts have the same electrical specifications and compliance status, including RoHS non-compliance and full REACH status. Selection of a substitute part is solely based on matching product status and certifications as provided.

Frequently Asked Questions (FAQ)

Q1: Which key parameters must match for the VI-B61-EX to be substituted?
A1: Manufacturer, series, type, input and output voltage, output current, power rating, isolation voltage, features, efficiency, mounting type, package or case size, and compliance status must all match.

Q2: Does the package height difference between VI-B61-EX and VI-B61-EX-B1 affect mechanical compatibility?
A2: Both parts use the Full Brick package. The only physical difference is the height dimension; verification of available mechanical clearance is required for fit within the intended design.

Q3: Are there any compliance differences between VI-B61-EX and VI-B61-EX-B1?
A3: No, both are RoHS non-compliant and REACH unaffected.

Q4: Can VI-B61-EX-B1 be used as a direct substitute for VI-B61-EX in all electrical aspects?
A4: All provided electrical parameters and features are equivalent.

Q5: Does the product status affect component selection?
A5: VI-B61-EX is obsolete; VI-B61-EX-B1 is active, supporting continuity of supply using the substitute part.

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