B82801A0404A070

Description：CURR SENSE XFMR 1:70 7A SMD
Series：B82801A
Mfr：EPCOS - TDK Electronics
Package：Tape & Reel (TR)

SKU:ad7bd54a5ef7 Category: Current Sense Transformers Brand: EPCOS - TDK Electronics

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Product introduction

B82801A0404A070 is listed in the Current Sense Transformers range at ChipApex. The manufacturer field lists EPCOS - TDK Electronics. Its product description is CURR SENSE XFMR 1:70 7A SMD. Review the specifications below when checking this part for your BOM.

Current Sense Transformers specifications for B82801A0404A070

Description：CURR SENSE XFMR 1:70 7A SMD
Series：B82801A
Mfr：EPCOS - TDK Electronics
Package：Tape & Reel (TR)
Frequency Range：50kHz ~ 1MHz
Type：Invasive
Inductance：400 µH
ET (Volt-Time)：20VµS
Current Ratio：-
DC Resistance (DCR)：2.5mOhm Primary, 4.6Ohm Secondary
Ratings：-
Mounting Type：Surface Mount
Size / Dimension：0.185" L x 0.138" W (4.70mm x 3.50mm)
Height - Seated (Max)：0.138" (3.50mm)
Termination Style：J Lead
Turns Ratio - Primary:Secondary：0.090277778
Current Rating (Amps)：7:00 AM

Current Sense Transformers datasheet and documents for B82801A0404A070

B82801A0404A070

Current Sense Transformers Overview

The B82801A0404A070 is a surface-mount current transformer manufactured by EPCOS (TDK). It features an inductance of 40 uH and a turns ratio of 1:70. The component operates within a frequency range of 50 kHz to 1 MHz and has a secondary coil resistance of 4.6 Ohms. Designed for board mounting, it supports a maximum operating temperature of +125°C and a minimum of -40°C. The physical dimensions are 4.85 mm in length, 4.5 mm in width, and 3.5 mm in height.

Current Sense Transformers Feature Summary

Surface-mount construction for automated assembly
High turns ratio for precise current sensing
Wide frequency range operation

Current Sense Transformers Applications

Current sensing in power supply circuits
Motor control systems
Industrial power monitoring

Current Sense Transformers Procurement Notes

Verify the specific manufacturer part number against official TDK/EPCOS documentation to ensure authenticity. Confirm that the component meets all required electrical specifications for your application, including inductance, turns ratio, and thermal limits. Check for any recent product change notifications or obsolescence notices from the manufacturer before finalizing procurement decisions.

Current Sense Transformers Selection Notes

Select this component when surface-mount current transformers with high sensitivity are required. Ensure the application frequency falls within the specified 50 kHz to 1 MHz range. Verify that the PCB layout accommodates the specific footprint dimensions and that the thermal environment supports the rated operating temperature range.

Current Sense Transformers Part Context

This component belongs to the B82801A series of current transformers from EPCOS (TDK). These devices are designed for applications requiring accurate current measurement in compact spaces. The series offers various inductance and turns ratio options to suit different sensing requirements across power electronics.