Equivalent & Substitute Parts for VOF-6-3.3

Part Overview

The VOF-6-3.3 by CUI Inc. is an open frame AC/DC converter delivering 3.3V output at up to 1.2A for a total power output of 6W. It is designed for ITE (Commercial) applications, features universal AC/DC input, through hole mounting, and international safety certifications. The part is currently classified as obsolete, making it necessary to identify and select equivalent and substitute power supplies with matching key electrical and mechanical parameters for direct replacement and continuity in applications.

Substiute Parts

VOF-6-3.3
CUI Inc.In Stock: 819VOF-6-3.3 Datasheet
VOF-6-3.3
Current Part
PSK-10D-3
CUI Inc.In Stock: 1216PSK-10D-3 Datasheet
PSK-10D-3
MFR Recommended

Key Parameters

ParameterVOF-6-3.3
Number of Outputs1
Voltage - Input85 ~ 264 VAC, 120 ~ 375 VDC
Voltage - Output 13.3V
Current - Output (Max)1.2A
Power (Watts)6 W
TypeOpen Frame
Mounting TypeThrough Hole
Package / Case4-DIP Module
Size / Dimension2.16" L x 1.38" W x 0.83" H (54.9mm x 35.0mm x 21.0mm)
Approval AgencyCB Scheme, EN, IEC, SIQ, TUV, UL
Standard Number55024; 60950-1; 61000-3-2; 61000-3-3
RoHS StatusRoHS Compliant
Efficiency69%

Substitute Part Grouping Explanation

The substitute part list is determined strictly based on matching or exceeding the key operational, electrical, mechanical, and regulatory parameters. This includes number of outputs, input voltage range, output voltage, maximum output current, total power, through hole mounting, compliance to RoHS, and applicable international safety standards or certifications. Only parts that meet or exceed these requirements and have compatible form factors are considered valid substitutes.

Parameter Comparison

Parameter VOF-6-3.3 (CUI Inc.) PSK-10D-3 (CUI Inc.)
Number of Outputs 1 1
Voltage - Input 85 ~ 264 VAC,
120 ~ 375 VDC
85 ~ 305 VAC,
100 ~ 430 VDC
Voltage - Output 1 3.3V 3.3V
Current - Output (Max) 1.2A 2.6A
Power (Watts) 6 W 8.6 W
Type Open Frame Enclosed
Mounting Type Through Hole Through Hole
Package / Case 4-DIP Module 6-DIP Module, 4 Leads
Size / Dimension 2.16" x 1.38" x 0.83"
(54.9mm x 35.0mm x 21.0mm)
1.57" x 1.00" x 0.83"
(40.0mm x 25.4mm x 21.0mm)
Approval Agency CB Scheme, EN, IEC,
SIQ, TUV, UL
CE, cURus
Standard Number 55024;
60950-1;
61000-3-2;
61000-3-3
60335-1;
62368-1
RoHS Status RoHS Compliant ROHS3 Compliant
Efficiency 69% 74%

Engineering Selection Recommendations

The main part VOF-6-3.3 is obsolete, while the substitute PSK-10D-3 is currently active and available in inventory. Both parts have RoHS compliance and meet relevant international safety standards, though with differing standard numbers and approval agencies. The substitute provides a wider input voltage range, higher maximum output current, and increased efficiency. Form factor differs with the substitute being a 6-DIP enclosed module versus the 4-DIP open frame of the original. All electrical parameters for the substitute are within acceptable substitution range or exceed the requirements of the VOF-6-3.3.

Frequently Asked Questions (FAQ)

Q1: What are the key requirements when selecting a substitute for VOF-6-3.3?
A1: Key requirements include matching output voltage (3.3V), maximum output current (≥1.2A), input voltage compatibility, through hole mounting, and compliance with RoHS and relevant safety standards.

Q2: Does PSK-10D-3 have the same package size as VOF-6-3.3?
A2: No, the PSK-10D-3 is physically smaller (1.57" x 1.00" x 0.83") and uses a 6-DIP module, while VOF-6-3.3 uses a 4-DIP module (2.16" x 1.38" x 0.83").

Q3: Are there differences in approvals or certifications between VOF-6-3.3 and PSK-10D-3?
A3: Yes, both have international safety certifications, but the specific approval agencies and applicable standard numbers differ as listed in the parameter comparison.

Q4: Is there a difference in efficiency between the original and substitute parts?
A4: Yes, PSK-10D-3 has a higher efficiency (74%) compared to VOF-6-3.3 (69%).

Q5: Does the substitute meet the required number of outputs and voltage range?
A5: Yes, both parts provide a single 3.3V output and support a universal AC/DC input voltage range.

Q6: Are mounting types and application categories compatible?
A6: Yes, both parts utilize through hole mounting and are designed for ITE (Commercial) applications.

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