# CURRENT TRANSFORMER, 1:200, 25A, TH
**URL**: https://novapart.co/products/CST25-0200/current-transformer-1200-25a-th
**SKU**: CST25-0200
**Manufacturer**: TRIAD MAGNETICS
**Category**: Transformers || Current Sensing Transformers
**Price**: €2.0500
**Stock**: 10+
## Specifications
| Parameter | Value |
|---|---|
| Inductance | 76mH |
| Et Constant | 700Vµs |
| Turns Ratio | 1:200 |
| Product Range | CST Series |
| Frequency Range | 50kHz to 500kHz |
| Primary Current | 25A |
| Transformer Mounting | Through Hole |
| Transformer Terminals | PC Pin |
| Dc Resistance Secondary | 4.5ohm |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2987968/)
## **Current Sense Transformer**
## **CST25-0200**
## **Description:**
Triad's CST25 series of current sense transformers are ideal for monitoring currents in high frequency applications such as switch-mode power supplies, LED lighting, etc. The CST25 series is offered with a built-in sense winding allowing for ease of use. These current sense transformers are fully encapsulated allowing for a high isolation of 4000 VAC between primary and secondary windings. There are five different popular turn ratios available to choose from.
## **Construction:**
Constructed with UL rated 130°C (Class B) materials.
## **Electrical Specifications (@25°C) @ 10kHz, 0.01V**
|Min. Sec.
Inductance|Turns
Ratio|Amps
(RMS)|Max. DC (Ω)
Resistance
Sec.|Sec.
Current Max
(mA)|ET
Max
(Vusec)|
|---|---|---|---|---|---|
|76.0mH|1:200|25|4.50|125|700|
1. Frequency: 50kHz-500kHz
2. Operating Temperature: -40 – +100°C
3. Storage Temperature: -50°C – +110°C, ≤ 75% RH
4. ET = Volts-second product
5. Weight: 7g
## **CST25-0200 Schematic**
## **Safety:** 4000VAC Dielectric Strength between windings.
**RoHS Compliance:** As of manufacturing date February 2005, all standard products meet the requirements of 2011/65/EU, known as the RoHS initiative.
Note: Order and shipping documentation may have a “- B” suffix; this indicates Bulk packaging but does not show on the actual part number marked on the transformer.
*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
Web: www.TriadMagnetics.com Phone 951-277-0757 Fax 951-277-2757
460 Harley Knox Blvd. Perris, California 92571
Publish Date: November 1, 2018
## Links
- [View this product on Novapart](https://novapart.co/products/CST25-0200/current-transformer-1200-25a-th)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/en-ES/triad-magnetics/cst25-0200/current-transformer-1-200-25a/dp/2987968)
---
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