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Epoxy Encapsulated CT103 Miniature Current Power Transformer For Power Monitoring Metering
Place of Origin:
China
Brand Name:
Chipsen
Certification:
ISO9001:2015, ISO14001:2015, IATF16949, UL/cUL, ROHS, REACH, CQC
Model Number:
CT103
Minimum Order Quantity:
100pcs
Price:
US$0.3-1
Packaging Details:
Carton 1: 25.5 X 21.5 X 21cm. Carton 2: 43.5 x 24.5 x 21 cm
Delivery Time:
3~4 Weeks
Payment Terms:
T/T
Supply Ability:
10,000,000pcs/month
Specifications
Highlight Features
CT103 current power transformer
,Miniature current power transformer
,Epoxy Encapsulated electrical current transformer
Product Type:
Through-Hole Current Transformer / Current Sensor
Application:
Energy Meter, PV Inverter, EV Charger, UPS, Motor Control
Customization:
OEM & ODM Available, MOQ 100 PCS
Housing Material:
Flame-Retardant Plastic, Epoxy Encapsulated
Operating Temperature:
-40°C ~ +85°C
Mounting Type:
PCB Mount / Panel Mount, Lead Wire With Connector
Turns Ratio:
1000:1 / 2000:1 / 2500:1, Customizable
Operating Frequency:
50Hz / 60Hz
Rated Input Current:
5A / 10A / 20A, Customizable
Accuracy Class:
0.5 / 1.0
Product Description
Epoxy Encapsulated CT103 Miniature Current Transformer for Power Monitoring Metering
Product Overview
The CT103 is a miniature PCB-mount current transformer built on a toroidal core and fully encapsulated in black epoxy resin. Its D-shaped body with a central through-hole allows the primary conductor to pass directly through the window, while two straight solder pins provide a secure through-hole connection to the PCB. The sealed construction protects the winding against moisture, dust and mechanical stress, making the CT103 a compact and repeatable current-sensing solution for board-level metering and monitoring designs.
Key Features
- High efficiency – toroidal core structure for effective magnetic coupling and low loss
- Low noise – epoxy-encapsulated winding suppresses mechanical vibration and audible noise
- Stable performance – sealed body keeps output consistent under humidity, dust and vibration
- Durable & reliable – one-piece resin housing resists moisture ingress and mechanical shock
- Space-saving PCB design – D-shaped footprint with two through-hole pins for direct board mounting
- Open-window primary – the central aperture accepts a pass-through primary conductor, no primary winding required
Technical Specifications
| Model Number | CT103 |
|---|---|
| Product Type | Current Transformer / Current Sense Transformer |
| Core Type | Toroidal ring core |
| Mounting Type | PCB through-hole, 2 solder pins |
| Encapsulation | Black epoxy resin, fully sealed |
| Rated Input Current | 【待填写】 A |
| Turns Ratio | 【待填写】 |
| Sampling Resistance | 【待填写】 Ω |
| Accuracy / Phase Error | 【待填写】 |
| Linearity Range | 【待填写】 |
| Operating Frequency | 【待填写】 Hz |
| Dielectric Strength | 【待填写】 VAC / 1 min |
| Operating Temperature | 【待填写】 ℃ |
| Dimensions (L×W×H) | 【待填写】 mm |
| Aperture Diameter | 【待填写】 mm |
| Certification | 【待填写:仅填写已获证书,如 ISO 9001 / IATF 16949 / UL / VDE / CQC】 |
Custom electrical parameters are available on request. Please send us your rated current, turns ratio and output requirements, and our engineering team will match or develop a suitable version.
Typical Applications
- Electric energy meters and smart metering modules
- Power monitoring and load-current measurement boards
- Overcurrent detection and protection circuits
- Switching power supplies and inverter control boards
- Industrial automation and instrumentation equipment
Please confirm the electrical rating of the CT103 against your circuit requirements before design-in.
Our Service
| MOQ | 100 PCS |
|---|---|
| Quotation Response | Within 3 working days |
| Sample Production | Within 7 working days |
| Warranty | 5 years; 20 years for special industries |
| Customization | OEM & ODM available |
| Production Mode | MTO (Made to Order), monthly capacity 【待填写】 PCS |
| Trade Terms | EXW / FOB / CIF |
| Packaging | 【待填写:如 tray + anti-static bag + carton】 |
Need a custom current transformer?
Send us your rated current, turns ratio, output signal and PCB footprint. We reply with a quotation within 3 working days and deliver samples within 7 working days.
Send us your rated current, turns ratio, output signal and PCB footprint. We reply with a quotation within 3 working days and deliver samples within 7 working days.
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