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LWW

LWW

Product catalog summary

Overview: The document provides comprehensive technical specifications for the LWW Series Wirewound Ceramic Chip Inductors by Stackpole Electronics, Inc., designed for applications such as mobile phones, wearable devices, and IoT devices.

Features:

Constructed with wirewound on a ceramic base for excellent Self-Resonant Frequency (SRF).
Robust termination ensures mechanical strength.
High Q values available in compact package sizes.
Offered with tight tolerances of ±2%.

Applications: Suitable for mobile phones, wearable devices, wireless LANs, cable/satellite receivers, security systems, smart meters, connected appliances, and various IoT devices.

Mechanical Specifications: Dimensions and weights are provided for different inductor types (LWW0402, LWW0603, LWW0805, LWW1008, LWW1206) in both inches and millimeters.

Electrical Specifications: Detailed specifications include:

Inductance range (nH)
Current range (mA)
Minimum SRF (GHz)
Maximum DC Resistance (DCR) (Ω)
Minimum Quality Factor (Q)

Each inductor type has specific part numbers with varying tolerances and performance metrics.

Key Data from Tables: Tables provide specific electrical characteristics for each inductor type, including part numbers, frequency, Q factor, SRF, DCR, and maximum current, essential for selecting the appropriate inductor for specific applications.

Electrical Performance Tests: Test methods for evaluating inductance, quality factor, self-resonant frequency, and DC resistance are outlined, using equipment like HP4286/E4982A and micro-ohm meters. Tests for insulation resistance, withstanding voltage, rated current, and overload conditions are also described.

Mechanical Performance Tests: Include vibration tests, component adhesion (push test), and resistance to soldering heat, ensuring inductors withstand mechanical stresses and maintain performance.

Climatic Tests: Inductors are tested for temperature ranges from -40°C to +125°C and humidity levels between 90-95%, including multiple cycles to simulate real-world conditions.

Packaging Specifications: Dimensions for paper tape and embossed plastic tape packaging are provided, ensuring compatibility with automated assembly processes.

Ordering Information: A guide on ordering inductors includes product series, size, tolerance, packaging, and inductance values, with an explanation of the legacy part number system.

Recommendations: Users are advised to confirm technical specifications before ordering or using the inductors, as specifications may change without prior notice.

Catalog excerpts

Wirewound Ceramic Chip Inductor Features: Resistive Product Solutions Wirewound on ceramic base provides excellent SRF Robust termination for outstanding mechanical strength Exceptional Q values for small package sizes Tight tolerances of ±2% available Contact Stackpole for additional inductance values • • • • • • • • Mobile phones Wearable devices Wireless LANs Cable/Satellite receivers Security systems Smart meters Connected appliances Various IoT devices Inductance and Current Ranges Type/Code Mechanical Specifications Type/Code Standard Rev Date: 08/01/2016 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. inches mm inches mm inches mm inches mm inches mm

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Wirewound Ceramic Chip Inductor Resistive Product Solutions Mechanical Specifications (cont.) Type/Code High Current LWW0402…-HC LWW0603…-HC LWW0805…-HC LWW1008…-HC inches mm inches mm inches mm inches mm Electrical Specifications – LWW0402 Standard Part Number Rev Date: 08/01/2016 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

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Wirewound Ceramic Chip Inductor Resistive Product Solutions Electrical Specifications – LWW0402 Standard (cont.) Part Number Rev Date: 08/01/2016 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

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Wirewound Ceramic Chip Inductor Resistive Product Solutions Rev Date: 08/01/2016 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

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Wirewound Ceramic Chip Inductor Resistive Product Solutions Electrical Specifications – LWW1008 Standard (cont.) Tolerance Rev Date: 08/01/2016 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

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Wirewound Ceramic Chip Inductor Resistive Product Solutions Electrical Specifications – LWW0805 High Current and High Q (cont.) Tolerance Electrical Specifications – LWW1008 High Current and High Q Tolerance Electrical Performance Test Item Inductance Q SRF DC Resistance RDC Test Method Refer to Electrical Specifications tables Rated Current IDC Over Load Withstanding Voltage Insulation Resistance Inductors shall have no evidence of electrical and mechanical damage Inductors shall have no evidence of electrical and mechanical damage 1000M ohm min. HP4286/E4982A HP4286/E4982A HP4287/E4982A Micro-Ohm...

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Wirewound Ceramic Chip Inductor Resistive Product Solutions Mechanical Performance Test (cont.) Item Test Method 90% covered with solder No damage on appearance and marking Dropping chip by each side and each corner. Drop 10 times in total. Drop height: 100 cm Drop weight: 125 g Inductor shall be dipped in a melted solder bath at 245±5°C for 3 seconds. MIL-STD-202F, Method 215D Climatic Test Item Test Method Temperature Characteristic -40 ~ +125°C Temperature : 40±2°C Relative Humidity: 90~95% Time: 96±2 hours Measured after exposure in the room condition for 2 hours Temperature : -40±2°C Time:...

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Wirewound Ceramic Chip Inductor Resistive Product Solutions Paper Tape Specifications Unit inches mm inches mm Embossed Plastic Tape Specifications Rev Date: 08/01/2016 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

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Wirewound Ceramic Chip Inductor Resistive Product Solutions Product Series Wirewound Inductor Packaging Description Sizes 0402 Paper Tape 0603 0805 Embossed 1008 Plastic 1206 Description Standard High Current and High Q Legacy Part Number: 1 Product Series Wirewound Inductor Rev Date: 08/01/2016 This specification may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. Packaging Sizes 02, 03 Tape and Reel 05, 08, 06 Description Description Standard High Current and Q www.seielect.com [email protected]

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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