Dielectric Laboratories, Inc.

What Dielectric Laboratories, Inc. does

Dielectric Laboratories, Inc. operates as part of Knowles Precision Devices (DBA Knowles Capacitors), a specialty electronic components division of publicly traded Knowles Electronics, LLC (NYSE: KN). The business designs and manufactures ceramic-based passive electronic components, with a portfolio spanning Multilayer Ceramic Capacitors (MLCCs) including the proprietary Hiteca line, Single Layer Capacitors, High Q capacitors, Precision Variable Capacitors, custom Large Capacitor Assemblies, RF and Microwave filters and components, EMI filters and planar/discoidal devices, ceramic resonators, non-magnetic components, and inductors/baluns. Underlying technology centers on advanced ceramic formulations and precision manufacturing processes that target high-reliability, high-frequency, and harsh-environment performance.

The company serves six primary verticals: Aerospace and Defense, Automotive (AEC-Q200 qualified), Industrial, Medical (including implantables), Space, and Telecom (including 5G/mmWave and SatCom). Revenue is generated through B2B hardware sales, priced via quote-based enterprise contracts, and fulfilled through three parallel channels: a global authorized distributor network, regional manufacturer sales representatives, and an online self-serve stack comprising the MLC Part Builder, Trimmer Part Builder, Stock Finder, and quote/sample request forms. The 2023 acquisition of Cornell Dubilier broadened the portfolio into aluminum electrolytic, film, and ultracapacitor technologies. No standalone revenue, headcount, or geographic office data is disclosed for Dielectric Laboratories in the provided source.

Name

Dielectric Laboratories, Inc.

Legal name

Knowles Capacitors

Website

https://dilabs.com

Company type

Public

Operating status

Operating

Headcount range

11–50 employees

Short description

Dielectric Laboratories, Inc. operates as Knowles Precision Devices, designing and manufacturing specialty ceramic-based passive electronic components (MLCCs, RF/microwave filters, EMI filters, non-magnetic and inductor products) for aerospace, defense, automotive, medical, space, and telecom customers via distributors, sales reps, and online self-serve tools.

Ownership category

akta.pro rank

Product category

Passive Electronic Components

NAICS

Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416), Electrical Equipment Manufacturing (3353)

SIC

Electronic Coils, Transformers & Other Inductors (3677)

akta.pro primary industry

Capacitors (Ceramic/Film/Electrolytic/Tantalum/Supercapacitors) (HDAHANAB)

akta.pro secondary industries

Inductors & Coils (Power/RF/Chokes) (HDAHANAC), Passive Components (Resistors, Capacitors, Inductors, Ferrites) (IMAGAJAA)

Keywords

• Multilayer ceramic capacitors
• RF microwave filters
• EMI filtering components
• Precision variable capacitors
• High reliability capacitors

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Electronic Component Sales: Sale of specialty electronic components including capacitors, RF/microwave components, EMI filters, and related devices. Products sold through distributors and direct sales channels with global reach.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Dielectric Laboratories, Inc. operates as part of Knowles Precision Devices (Knowles Capacitors division) and manufactures specialty ceramic-based electronic components. The portfolio includes Multilayer, Single Layer, High Reliability, and Precision Variable Capacitors; EMI Filters; and Microwave Devices such as RF Filters, Splitters, and Couplers. Products are engineered for mission-critical applications across aerospace and defense, automotive, medical, military, space, and telecom industries.

Product overview

Knowles Precision Devices (through its Knowles Capacitors division) offers a comprehensive portfolio of electronic components organized into product lines: Multilayer, Single Layer, High Reliability and Precision Variable Capacitors; EMI Filters; and Microwave Devices including RF Filters, Splitters and Couplers. The product portfolio includes core capacitor offerings (aerospace/defense, automotive AEC-Q200, high-Q, SMD, trimmers), specialized sub-brands like Hiteca™ MLCCs and Large Capacitor Assemblies, RF/Microwave components with various filter types, EMI filtering solutions, non-magnetic components, and thin film/substrate products. Solutions are targeted to specific industries including automotive, industrial, medical, military, space, and telecom applications.

Differentiator

Problem solved

Functional benefit

Brands

• Hiteca: Multilayer Ceramic Capacitors product line for power electronics applications.

Products and services

• Capacitors Portfolio Multilayer, Single Layer, High Reliability, and Precision Variable Capacitors including options for aerospace and defense, AEC-Q200 automotive, high Q, SMD, MLCCs with leads, single layer, broadband blocks, trimmer, and capacitor assemblies, sold to engineers designing mission-critical electronics.
• Hiteca Multilayer Ceramic Capacitors High-capacitance MLCCs designed to optimize power electronics and operate reliably and efficiently in demanding applications, for power electronics designers.
• Large Capacitor Assemblies Custom approach to large capacitor assembly providing high capacitance and high voltage solutions that maximize board space, for applications requiring tailored high-energy storage.
• RF and Microwave Components Microwave devices including RF filters, splitters, couplers, gain equalizers, power dividers, resonators, and bias networks, for RF system designers across telecom, defense, and space applications.
• Filter Technology RF and microwave filter solutions including 5G filters, bandpass, lowpass, highpass, cavity filters, and custom design filters, for RF system integrators.
• EMI Filters EMI filtering solutions including planars and discoidals for electromagnetic interference suppression, for electronic equipment manufacturers needing signal integrity.
• Non-Magnetic Components Non-magnetic hardware, inductors, MLCs, and trimmers designed for applications where magnetic interference must be avoided, including MRI and sensitive instrumentation.
• Thin Film and Substrates Ceramic resonators, heatsinks, standoffs, submounts, mounting shorts, build-to-print solutions, and substrates, for RF and microwave system integrators.
• Inductors and Baluns Inductors and balun components for RF applications, for RF circuit designers.
• SatCom Products Satellite communications products including components designed for space and satellite applications, for satellite system integrators.
• High Q Ceramic Core Inductors Mission-critical RF inductors designed for demanding RF applications, for RF system designers in aerospace, defense, and telecom.

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Cornell DubiliercoreStrategic or Co-development Partner · 1 January 2023Cornell Dubilier was acquired by Knowles in 2023, expanding Knowles Precision Devices' capacitor portfolio. Cornell Dubilier specializes in aluminum electrolytic, film, and ultracapacitor technologies, complementing Knowles' ceramic capacitor offerings.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Direct peers

• Murata Manufacturing: World's largest MLCC manufacturer and a direct competitor across multilayer ceramic capacitors, RF filters, and inductors. Overlaps directly with Knowles' core capacitor and RF/microwave filter product lines, especially in automotive, telecom, and consumer applications.
• Yageo Corporation: Taiwanese passive components leader (now including KEMET) with significant MLCC, resistor, and inductor capacity. Directly comparable to Knowles Capacitors across ceramic capacitors, with complementary positions in resistors and inductors serving automotive, industrial, and telecom markets.
• API Technologies (now Spectrum Control): Specialty provider of EMI filters, RF/microwave components, and ceramic capacitors for defense, aerospace, and medical applications. Highly comparable to Knowles' defense, space, and medical filter and capacitor offerings with overlapping customer base.
• Taiyo Yuden: Japanese manufacturer specializing in MLCCs, inductors, and RF components. Direct competitor across ceramic capacitors and inductors, with overlapping customer base in telecom, automotive electronics, and consumer devices.
• Samsung Electro-Mechanics: Major Korean MLCC manufacturer competing directly with Knowles in multilayer ceramic capacitors for automotive, smartphone, and industrial applications. Among the largest global MLCC producers by volume with significant scale advantages in commodity and mid-range grades.
• Vishay Intertechnology: Broad-line passive component manufacturer producing capacitors (MLCC, tantalum, film), inductors, resistors, and EMI filters. Directly comparable product portfolio with similar end-market exposure in automotive, industrial, military, and telecom sectors.
• Walsin Technology Corporation: Taiwanese manufacturer of MLCCs, chip resistors, and inductors. Competes with Knowles in multilayer ceramic capacitors with overlap in consumer, telecom, and industrial applications, though at a smaller scale and more commodity-oriented mix.
• AVX Corporation (Kyocera): Subsidiary of Kyocera, AVX manufactures multilayer ceramic capacitors, tantalum capacitors, and EMI filters. Directly comparable to Knowles' capacitor and filter portfolio, with particular overlap in automotive, aerospace, and defense applications.

Broad incumbents

• TDK Corporation: Large Japanese electronics conglomerate with a substantial passive components portfolio including MLCCs, inductors, and RF components. Competes with Knowles across capacitors and EMI filters, though TDK operates across a much broader portfolio including batteries, sensors, and magnetic materials.

Emerging players

• Johanson Technology: US-based specialty manufacturer of high-frequency ceramic capacitors, RF inductors, and EMI filters focused on RF and microwave applications. Comparable to Knowles' specialty High Q capacitor and RF filter product lines, particularly for telecom, medical, and aerospace customers.

Market position

Strengths3 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/dielectric-laboratories-inc.

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dielectric Laboratories, Inc.