# Current Sensing Transformer, 1:500, 75 mH, 20 A, 50Hz to 400Hz, 26 ohm
**URL**: https://novapart.co/products/CS2106L/current-sensing-transformer-1500-75-mh-20-a-50hz
**SKU**: CS2106L
**Manufacturer**: COILCRAFT
**Category**: Transformers || Current Sensing Transformers
**Price**: €11.8100
**Stock**: 10+
**Lead Time**: 85 days (indicative)
## Description
Turns Ratio:1:500; DC Resistance:0.007ohm; Inductance:75mH; ET Constant:-; Primary Current:20A; Transformer Mounting:Through Hole; Product Range:-; SVHC:No SVHC (15-Jan-2019)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Inductance | 75mH |
| Et Constant | - |
| Turns Ratio | 1:500 |
| Dc Resistance | 0.007ohm |
| Product Range | - |
| Frequency Range | 50Hz to 400Hz |
| Primary Current | 20A |
| Transformer Mounting | Through Hole |
| Dc Resistance Primary | 7000µohm |
| Transformer Terminals | PC Pin |
| Dc Resistance Secondary | 26ohm |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2457948/)
Document 150
## **50/60 Hz Current Sensing Transformer**
This Coilcraft current sense transformer is intended for use in measuring 50/60 Hz line currents from 0.5 to 20 Amperes rms. Typical application shown below yields an output of 0.1 Volt per Ampere. The sensitivity may be changed by adjusting the value of the terminating resistance (RT). These parts also can be used to measure 400 Hz line currents.
To request free evaluation samples, contact Coilcraft or visit **www.coilcraft.com** .
|**Part**|**Turns (N)**|**Inductance**1|**DCR max (Ohms)**|**Frequency**
**range**2|**Sensed**
**current**|**RT for**
**1.0 Vout**|
|---|---|---|---|---|---|---|
|**number**|**pri : sec**|**min(mH)**|**1,2 – 3,4 8 – 5**|**(Hz)**|**rangeIin**|**from 10 AIin**3|
|CS2106L|1 : 500|75|0.007
26|50 – 400|0.5 A – 20 A|68 Ohms|
1. Inductance is for the secondary, tested at 1 kHz, 0.1 Vrms.
2. Square wave response deteriorates above and below this frequency.
3. Use the following equation to determine the approximate change in output voltage/ input ampere when varying the terminating resistor: Vout / I in = 0.1 × (RT / 68).
4. Ambient temperature range –40°C to +85°C.
**==> picture [174 x 85] intentionally omitted <==**
**----- Start of picture text -----**
1 8
2
I in CS2106 RT Vout
3
4 5
:)
**----- End of picture text -----**
5. Electrical specifications at 25°C.
## **Typical Circuit**
## **Typical Response (with RT = 68 Ohms)**
**==> picture [239 x 119] intentionally omitted <==**
**----- Start of picture text -----**
2.0
1.5
1.0
0.5
0
0 5 10 15 20
Current (Amperes rms)
Vout (Volts rms)
**----- End of picture text -----**
**Weight:** 19 g Dimensions are in[inches ] mm **Terminations:** Tin-silver over copper **Packaging:** 30 per tray
**US** +1-847-639-6400 sales@coilcraft.com **UK** +44-1236-730595 sales@coilcraft-europe.com **Taiwan** +886-2-2264 3646 sales@coilcraft.com.tw **China** +86-21-6218 8074 sales@coilcraft.com.cn **Singapore** + 65-6484 8412 sales@coilcraft.com.sg
Document 150 Revised 12/29/09 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.
## Links
- [View this product on Novapart](https://novapart.co/products/CS2106L/current-sensing-transformer-1500-75-mh-20-a-50hz)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/coilcraft/cs2106l/transformer-current-sense-1-500/dp/2457948)
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