# POWER XFMR 28.0Vct@0.700A UL/cUL  115/230V SPLIT PACK PCB MOUNT/FS28-700 37B9097

![Product image](https://novapart.co/image/farnell:4070561/)

**URL**: https://novapart.co/products/FS28-700/power-xfmr-280vct0700a-ul-cul-115-230v-split-pack
**SKU**: FS28-700
**Manufacturer**: TRIAD MAGNETICS
**Category**: Transformers || PCB Transformers
**Price**: €12.5500
**Stock**: 10+
**Lead Time**: 172 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Power Rating | 20VA |
| Winding Type | Dual Primary, Dual Secondary |
| Product Range | - |
| Current Rating | 1.4A |
| Frequency Range | 50Hz / 60Hz |
| Primary Voltages | 115V, 230V |
| Isolation Voltage | 2.5kVrms |
| Secondary Voltages | 14V, 28V |
| Pcb Transformer Type | Split Bobbin |
| Transformer Mounting | Through Hole |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4070561/)

**P O W E R T R A N S F O R M E R** P C  M O U N T : SPLIT PACK 

## **FS28-700** 

## **Description:** 

The FS28-700 is a dual primary and dual secondary, split bobbin design which operates with either a parallel input of 115V or a series input of 230V. The output voltage will be either 28.0V with a center-tap under a 0.7A load with the secondaries wired in series, or 14.0V under a 1.4A load with the secondaries wired in parallel. The split bobbin design eliminates the need for costly electrostatic shielding. 

## **Electrical Specifications (@25C)** 

1. Maximum Power: 20.0VA 

2. Primary: Series: 230V; Parallel: 115V 

3. Secondary: Series: 28.0V CT@ 0.7A; Parallel: 14.0V @ 1.4A 

**==> picture [116 x 443] intentionally omitted <==**

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4. Voltage Regulation: 25% TYP @ full load to no load 

5. Temperature Rise: 25C TYP 

6. Hipot tested 100% at 2500 VRMS 

## **Construction:** 

Three flange bobbin construction with primaries and secondaries wound side by side for low capacitive coupling. 

## **Agency File:** 

UL: File E53148, UL 5085-2 (506), Class B General Purpose Transformer, cUL: File E53148, UL 5085-2 (506), Class B General Purpose Transformer, Canadian Use (CSA 22.2, No.66.2-06) 

This model is also available in Class 2, UL 5085-3 (1585) version as FS28-700-C2 

|**Dimensions:**|**Dimensions:**|||||Units in inches.|Units in inches.|Units in inches.|
|---|---|---|---|---|---|---|---|---|
|H|W|L|A|B|C|D|E|F|
|1.437|1.875|2.25|0.300|0.400|1.600|0.041|0.020|0.234|
|Weight: 0.80 lbs|Weight: 0.80 lbs||||||||



## **Schematic:** 

**==> picture [320 x 62] intentionally omitted <==**

**----- Start of picture text -----**<br>
PARALLEL SERIES<br>1 5 1 1<br>115/230V 2 6 115/230V 2 115/230V 2<br>50/60Hz 3 7 50/60Hz 3 50/60Hz 3<br>4 8 4 4<br>**----- End of picture text -----**<br>


**RoHS Compliance:** As of manufacturing date February 2016, all standard products meet the requirements of 2015/863/EU, known as the RoHS 3 initiative. 

As of April 7, 2008, UL standards 506 and 1585 will be migrated to UL 5085-2 and 5085-3, respectively. 

*Upon printing, this document is considered “uncontrolled”. Please contact Triad Magnetics website for the most current version. For soldering and washing information please see http://www.triadmagnetics.com/faq.html 

Web: www.TriadMagnetics.com Phone 951-277-0757 460 Harley Knox Blvd. Fax 951-277-2757 Perris, California  92571 

Publish Date: May 30, 2019 



## Links

- [View this product on Novapart](https://novapart.co/products/FS28-700/power-xfmr-280vct0700a-ul-cul-115-230v-split-pack)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/triad-magnetics/fs28-700/power-xfmr-28-0vct-0-700a-ul-cul/dp/4070561)
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