B78476A8251A003

$3.20

Description：PULSE XFMR 1CT:1CT 350UH
Series：-
Mfr：EPCOS - TDK Electronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:65650f4394cf Category: Pulse Transformers Brand: EPCOS - TDK Electronics

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Product introduction

Product Detailed Parameters

Description：PULSE XFMR 1CT:1CT 350UH
Series：-
Mfr：EPCOS - TDK Electronics
Package：Tape & Reel (TR),Cut Tape (CT)
Transformer Type：LAN 10/100/1000 Base-T
Inductance：350µH
ET (Volt-Time)：-
Turns Ratio - Primary:Secondary：1CT:1CT
Mounting Type：Surface Mount
Size / Dimension：0.693" L x 0.476" W (17.60mm x 12.10mm)
Height - Seated (Max)：0.230" (5.85mm)
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-

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B78476A8251A003

Overview

The B78476A8251A003 is a LAN pulse transformer designed for 10/100/1000 Base-T Ethernet applications. It features a 350µH inductance and a 1CT:1CT turns ratio. The component supports surface mount installation with dimensions of 17.60mm x 12.10mm x 5.85mm maximum height. It operates within a temperature range of -40°C to +85°C.

Feature Summary

Designed for 10/100/1000 Base-T LAN applications
Surface mount package construction
Extended operating temperature range capability

Applications

Ethernet network interface circuits
LAN transceiver modules
Computer networking hardware

Procurement Notes

Verify the manufacturer part number B78476A8251A003 against official TDK documentation to ensure authenticity. Confirm that the specific suffix matches the required 350µH inductance specification. Check RoHS compliance status and moisture sensitivity level requirements for your assembly process before ordering.

Selection Notes

Select this component when designing Gigabit Ethernet interfaces requiring a 1:1 turns ratio and 350µH common mode inductance. Ensure the PCB footprint accommodates the 17.60mm x 12.10mm surface mount package. Verify thermal management capabilities align with the -40°C to +85°C operational range specified for commercial applications.

Part Context

This part belongs to the B78476A series of magnetic modules for LAN applications manufactured by EPCOS, now part of TDK Electronics. These components are specialized pulse transformers intended for data communication networks. The series provides integrated magnetics solutions for Ethernet physical layer implementations.

Replacement Considerations

Consult official TDK cross-reference lists for verified substitutes. Ensure any replacement maintains identical 350µH inductance, 1:1 turns ratio, and surface mount dimensions. Verify compatibility with 10/100/1000 Base-T standards.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.