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Rapid Transformer Sample Service

Welcome to Power Integrations' Rapid Transformer Sample Service

Order transformers from PI in three easy steps:

  1. Create your design with PI Transformer Designer.
    Follow the guidelines at: Rapid Transformer Service (RTSS) - Compatible Design Creation guide.
  2. Send your power supply design file to Power Integrations' RTSS.
    You’ll receive an email confirming receipt and acceptance of your design file within one business day.
  3. Order samples following the instructions in the confirmation email.
    You’ll receive an email with tracking information when your order ships.

To Order Samples...

IMPORTANT – PLEASE READ


Transformer prototypes are not production-ready

THE INPUT TO THE RAPID TRANSFORMER SAMPLING SERVICE IS THE OUTPUT OF THE PI TRANSFORMER DESIGNER AUTOMATED TOOL. THIS TOOL CANNOT TAKE THE PLACE OF EXPERIENCED DESIGNERS AND TIME SPENT ON THE BENCH OPTIMIZING PRODUCT SAFETY AND EMI. THE PURPOSE OF THIS SERVICE IS TO ACCELERATE TIME TO PROTOTYPE AND PROVIDE A SOLID FOUNDATION FROM WHICH TO BEGIN FINALIZING YOUR PRODUCTION TRANSFORMER DESIGN.

IT IS YOUR RESPONSIBILITY TO CONFIRM THAT THE TRANSFORMER-WINDING SPECIFICATIONS ARE CORRECT AND COMPLETE PRIOR TO SUBMITTING THE INPUT FILE FOR RAPID TRANSFORMER SAMPLING. WE WILL NOT RE-WORK TRANSFORMERS BUILT USING INCORRECT INPUT FROM YOU.

POWER INTEGRATIONS DOES NOT GUARANTEE THAT THE TRANSFORMERS WILL PASS EMI AND SAFETY: IT IS YOUR RESPONSIBILITY TO TEST AND QUALIFY YOUR DESIGN FOR THE APPROPRIATE REGULATORY ENVIRONMENT.

POWER INTEGRATIONS DOES NOT GUARANTEE THE WORKMANSHIP OF ANY OF THE THIRD-PARTY SUPPLIERS. WE DO GUARANTEE OUR OWN WORKMANSHIP AND IF WE HAVE NOT BUILT THE TRANSFORMER ACCORDING TO THE OUTPUT OF PI TRANSFORMER DESIGNER, TELL US AND WE”LL RE-DO THE WORK FREE OF CHARGE.

Click on a bobbin type in the table below and follow the steps. (Note: You can also use this table to check availability of parts.)

For tips on how to select a supported core-and-bobbin combination, see: Manually Selecting a Core Size in PI Expert, or watch the video: Designing with a Fixed PI Device and/or a Fixed Transformer Core. When you are ready to proceed, click on a bobbin type in the table below.

Bobbin Type

Click on a Bobbin Type to order samples or to find out which bobbins are in stock.
EE
EEL
EER
EF
EFD
EPC
ER
ETD
PQ
PR
RM
These are the EE Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
EE13,8pins Horizontal 4 4
EE16,8pins Horizontal 4 4
EE16,10pins Horizontal 5 5
EE19,9pins,extended creepage Vertical 4 5
EE25,10pins Vertical 5 5
EE28,10pins,extended creepage Vertical 5 5
EE30/15/7,10pins Horizontal 5 5
EE40,12pins Vertical 6 6
EE42/15,10pins Horizontal 5 5
EE50,12pins Vertical 6 6
These are the EEL Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
EEL16,10pins,3+3mm margins Vertical 4 6
EEL16,10pins Vertical 4 6
EEL19,10pins,built in margins Vertical 5 5
EEL19,10pins,built in margins Vertical 4 6
EEL19,12pins(5x7) Horizontal 5 7
EEL22,10pins Vertical 5 5
EEL25,14Pins Horizontal 7 7
EEL25,14pins Vertical 7 7
These are the EER Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
EER28,12pins Vertical 6 6
EER28L,12pins Horizontal 6 6
EER28,12pins,built in margins Horizontal 6 6
EER28L,14pins Horizontal 7 7
EER28L,14pins Vertical 7 7
EER35,14pins Vertical 7 7
EER35,16pins Horizontal 8 8
EER40,16pins Horizontal 8 8
These are the EF Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
EF12.6,6pins Horizontal 4 2
EF16,8pins Horizontal 4 4
EF25/13/7,10pins Vertical 5 5
EF30(E30/15/7),10pins Horizontal 5 5
These are the EFD Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
EFD10,8pins,SMD Horizontal 4 4
EFD15,8pins Horizontal 4 4
EFD15,8pins,SMD Horizontal 4 4
EFD15,10pins,SMD Horizontal 5 5
EFD20,8pins Horizontal 4 4
EFD20,10pins,SMD Horizontal 5 5
EFD25,10pins Horizontal 5 5
EFD25,10pins,SMD Horizontal 5 5
EFD30,12pins Horizontal 6 6
These are the EPC Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
EPC13,10pins Horizontal 5 5
These are the ER Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
ER11/3.9,10pins,SMD Horizontal 5 5
ER14.5/6,10pins,SMD Horizontal 5 5
ER9.5,8pins,SMD Horizontal 4 4
These are the ETD Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
ETD29,14pins Horizontal 7 7
ETD34,14pins Horizontal 7 7
ETD44,18pins Horizontal 9 9
These are the PQ Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
PQ26/20,12pins Vertical 6 6
PQ26/25,12pins Vertical 6 6
These are the PR Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
PR14x8,10pins,SMD Horizontal 4 4
These are the RM Bobbins. Click on a Bobbin Type to the left to see other types.
Transformer Bobbin Orientation Primary
Pins		 Secondary
Pins
RM10,12pins Vertical 6 6
RM5,8pins,SMD Horizontal 4 4
RM6,6pins Vertical 3 3
RM6,8pins,SMD Horizontal 4 4
RM8,12pins Vertical 6 6
RM8,10pins,Low Profile Vertical 4 6