P1166 Series SMT Power Inductors – Pulse Shielded Drum Core

Category: Electronics, Inductors, Pulse Electronics Corporation

Overview of the P1166 Series SMT Power Inductors

The P1166 Series are surface-mount technology (SMT) power inductors presented by Technitrol Company (Pulse Electronics). Key features of these inductors include a compact shielded drum core design, with a maximum height of 3.8mm and a footprint of 7.5mm x 7.5mm. They boast a current rating up to 5.5A and an inductance range from 0.44μH to 750μH. These components are designed for high-density circuit boards where space is at a premium.

Electrical Specifications

Operating temperature for the P1166 Series is specified from -40°C to +130°C. These inductors feature a variety of part numbers with differing self-resonant frequencies (SRF). Tolerances on inductance at 0A DC are indicated for select part numbers to be ±30%, while a standard ±20% tolerance applies to all other parts. The datasheet denotes the saturation current, heating current, direct current resistance (DCR), and core loss characteristics for the inductors.

Additional Information and Notes

The datasheet provides important notes on the environmental and mechanical testing conditions, describing testing at 100kHz and 0.1VAC. It specifies that additional heating due to core losses may necessitate current derating to limit temperature rise. Furthermore, for RoHS compliance, a specific suffix (“NL”) is added to the part number. Temperature rise equations and factors along with core loss factors are detailed for a more precise calculation relevant to the application.

Part Numbering and Options

To order parts in optional Tape & Reel packaging, a “T” suffix is appended to the part number, aligning with the EIA-481 standard. The document details the product’s schematic and dimensions in inches and millimeters. Each inductor typically weighs 0.7 grams and is available in tape and reel packaging with 1200 units per reel.

For assistance and further technical details, contact information for Pulse’s global offices is included, covering the USA, Germany, Singapore, Shanghai, China, and Taiwan, along with the company’s website.