What Calogic does

Calogic, LLC is a privately held analog semiconductor manufacturer headquartered in Fremont, California. The Calogic brand traces to Calogic Corporation, founded in 1983 and previously a subsidiary of Sipex Corporation. In March 2001, current owner Jonathan Kaye led the formation of Calogic, LLC to purchase the Fremont wafer fabrication facility and associated technology assets from Sipex, including full intellectual property rights to four core analog processes: JFET, DMOS, CMOS, and Dielectrically Isolated. The company manufactures analog integrated circuits and discrete semiconductor components at its captive Fremont wafer fab, with assembly performed at partner sites in the Pacific Basin and final test and quality assurance executed back in Fremont.

The product portfolio divides into two categories. Discretes include DMOS switches (in 16-PDIP, SO-14, SOT-143, and various TO packages), JFET switches, JFET amplifiers, JFET diodes (PAD/DPAD/JPAD/SST500 series), and legacy MOSFETs (2N4351, 3N161-3N173, 3N190/191 families). Analog ICs comprise high-speed buffers and FET-input amplifiers (CLM6121, CLM6321, LH0002, LH0032, LH0033, including MIL-spec variants) and the AS4420 and AS4426-29 power management family in noninverting, inverting, and differential configurations. End markets span power management, computer, telecommunications, instrumentation, and medical devices. In addition to the catalog, Calogic offers full custom IC design and manufacturing plus custom testing and packaging services.

Calogic operates a sales-led go-to-market combining direct enterprise sales with seven authorized global distributors — Future Electronics, New Yorker Electronics, New Advantage Corporation, Sierra Components, and Semi Dice in North America, Whistler Technology in the United Kingdom, and Karl Kruse in Germany. Pricing is quote-based and not publicly disclosed. The company holds ISO 9001:2015 certification (achieved in March 2019 with zero non-conformities), full REACH compliance (since 2011), and ROHS-compliant product variants (since 2006). Leadership is tightly held: Jonathan Kaye (President) and Kathryn Kaye (Co-owner) have controlled the company since 2001, supported by long-tenured operators including General Manager Eric Prinz (15+ years) and Sales/Logistics lead Ross Villaroman (since 2001). With 11-50 employees and no external funding, Calogic is a niche specialist selling reliability-qualified analog components into long-lifecycle applications rather than competing in high-volume commodity semiconductor markets.

Name

Calogic

Legal name

Calogic, LLC

Website

https://calogic.net

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

11–50 employees

Short description

Calogic, LLC is a privately held analog semiconductor manufacturer in Fremont, California producing analog ICs and discrete components using proprietary JFET, DMOS, CMOS, and Dielectrically Isolated processes for power management, computing, telecom, instrumentation, and medical end markets.

Ownership category

akta.pro rank

Headquarters

HQ city

Fremont

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Semiconductor Component Sales: Calogic generates revenue through the sale of analog ICs and discrete semiconductor components including JFETs, DMOS switches, MOSFETs, buffers, amplifiers, and power management devices. Products are sold in standard and ROHS-compliant versions.

Go-to-market motion1 record

Distribution channels8 records

Marketing channels3 records

Core offering

Calogic manufactures analog integrated circuits and discrete semiconductor components — including JFET switches, JFET amplifiers, JFET diodes, DMOS switches, MOSFETs, high-speed buffers, FET-input amplifiers, and power management ICs — using proprietary JFET, DMOS, CMOS, and Dielectrically Isolated process technologies. Wafer fabrication and final testing are performed in-house at the Fremont, California facility, with assembly in the Pacific Basin. The company also offers full custom IC design and manufacturing services for specialized customer requirements.

Product overview

Calogic manufactures analog semiconductor products comprising two main product lines: Discretes (DMOS Switches, JFET Switches, JFET Amplifiers, JFET Diodes, and MOSFETs) and Analog ICs (Buffers and Amplifiers, Power Management). The company offers standard products in DMOS, JFET, CMOS, and Dielectrically Isolated technologies as well as full Custom IC capabilities. These products serve power management, computer, telecom, instrumentation, and medical applications. Assembly takes place in the Pacific Basin while wafer fabrication and final testing/QA are accomplished at the Fremont, California facility.

Differentiator

Problem solved

Functional benefit

Products and services

• DMOS Switches Double-diffused Metal-Oxide-Semiconductor switches available in 16-PDIP, SO-14, SOT-143, TO-52, TO-72, TO-78, and TO-92 packages. Includes N-Channel and Depletion Mode variants with BVDS from 10V to 30V and RDS(on) up to 200 Ohm, for analog switching applications in power management, telecom, instrumentation, and medical electronics.
• JFET Switches Junction Field-Effect Transistor switches in SOT-23, TO-18, TO-72, and TO-92 packages. Available in N-Channel and P-Channel configurations with VGS(off) ranges and low RDS(on) for low-leakage, high-impedance switching applications.
• JFET Amplifiers JFET-based amplifiers in SO-8, TO-18, SOT-23, TO-52, TO-71, TO-72, TO-78, and TO-92 packages. Features very low noise, high input impedance, high gain, and low leakage for precision signal amplification in instrumentation, medical, and telecom designs.
• JFET Diodes JFET diode products including PAD, DPAD, JPAD, and SST500 series in SOT-23, SO-8, TO-18, TO-71, TO-78, and TO-92 packages, with low leakage and various current ratings for analog signal and current-steering applications.
• MOSFETs MOSFET products including 2N4351, 2N4352, 3N161, 3N163, 3N164, 3N170, 3N171, 3N172, 3N173, 3N165, 3N166, 3N190, 3N191 in TO-72 and TO-99 packages. Available in N-Channel and P-Channel Enhancement Mode configurations with high input impedance for computing and general analog switching applications.
• Buffers and Amplifiers Buffer and amplifier ICs including CLM6121 and CLM6321 series (High Speed Buffers) and LH0002, LH0032, LH0033 series (Buffer/Amplifier products). Available in 8-Pin PDIP, SOIC-14, TO5 (8 Lead), and TO8 (12 Lead) packages including MIL-spec variants for high-reliability applications.
• Power Management ICs Power management ICs including AS4420, AS4426, AS4427, AS4428, AS4429 series in 8-Pin PDIP and SOIC packages, available in noninverting, inverting, and differential configurations for power management circuit designs.
• Custom IC Design and Manufacturing Full custom IC design, wafer fabrication, and manufacturing services using Calogic's proprietary JFET, DMOS, CMOS, and Dielectrically Isolated processes for customers with specialized requirements, complemented by custom testing and packaging services.

Quantifiable outcome

• Zero non-conformities during ISO 9001:2015 transition certification
• +1 more outcomes

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered historical, core and minor.

• Sipex CorporationhistoricalStrategic or Co-development Partner · 30 March 2001Calogic acquired the Fremont, CA fabrication facility from Sipex Corporation effective March 30, 2001. Acquired assets included full intellectual property rights to JFET, DMOS, CMOS, and Dielectrically Isolated technologies along with experienced workforce.
• Future ElectronicscoreChannel Partner/ Reseller/ DistributorWorldwide distributor of Calogic products. Located at 237 Hymus Blvd, Pointe Claire, QC H9R 5C7, Canada. Tel: (514) 694-7710. Provides global distribution coverage for Calogic's semiconductor components.
• New Yorker Electronics Co., Inc.coreChannel Partner/ Reseller/ DistributorUS-based authorized distributor located at 209 Industrial Pkwy, Northvale, NJ 07647. Phone: 201-750-1171. Provides distribution coverage for US market.
• Whistler Technology PlccoreChannel Partner/ Reseller/ DistributorEuropean distributor based at Matlock Mill, Hamilton Way, Mansfield, Notts, NG18 5BU, UK. Contact: Grant Portman. Provides distribution coverage for European market.
• New Advantage CorporationcoreChannel Partner/ Reseller/ DistributorNorth American global headquarters at 1790 Commerce Avenue N., St. Petersburg, FL 33716. Toll-free: 1-866-651-2901. Serves as primary North American distributor.
• Karl Kruse GmbH & Co KGcoreChannel Partner/ Reseller/ DistributorGerman distributor located at Schirmerstrasse 59, Duesseldorf, 40211, Germany. Contact: Klaus Kruse. Provides distribution coverage for German and European markets.
• Sierra Components, Inc.minorChannel Partner/ Reseller/ DistributorNevada-based distributor at 2222 Park Place, Building 3 Suite E, Minden, NV 89423. Contact: Mike Gunderson. Provides regional coverage for western US market.
• Semi Dice Wafer & Die ProductsminorChannel Partner/ Reseller/ DistributorCalifornia-based distributor specializing in wafer and die products at 10961 Bloomfield Street, Los Alamitos, CA 90720. Contact: Laura Margeson. Provides specialized wafer and die distribution.

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Microchip Technology: Microchip is a broad analog, mixed-signal, and microcontroller supplier with a strong presence in industrial and instrumentation end-markets. Through legacy Microsemi and Micrel assets, it competes with Calogic in specialty analog and high-reliability discretes.
• Vishay Intertechnology: Vishay is a major manufacturer of discrete semiconductors (MOSFETs, diodes, optoelectronics) and passive components. Its Siliconix subsidiary historically produced JFETs and small-signal MOSFETs that overlap directly with Calogic's product lines.
• Analog Devices: Analog Devices is a global leader in high-performance analog, mixed-signal, and DSP integrated circuits serving instrumentation, healthcare, and industrial customers — directly overlapping Calogic's instrumentation and medical segments with amplifier and signal-chain products.
• ROHM Semiconductor: ROHM is a Japanese manufacturer of analog ICs, power discretes, and MOSFETs serving automotive, industrial, and consumer markets. Its discrete and analog IC portfolios directly overlap Calogic's product mix, especially in switching and amplifier categories.
• Texas Instruments: Texas Instruments is the largest analog IC manufacturer globally, with deep portfolios in power management, amplifiers, and buffers. It overlaps with Calogic's power management, buffer, and amplifier product families across virtually all of Calogic's served end-markets.
• ON Semiconductor (onsemi): Onsemi is a large analog and power semiconductor supplier with broad discrete, power management, and signal-conditioning portfolios. It competes with Calogic in power management ICs and discrete MOSFETs across industrial and instrumentation end-markets.
• Diodes Incorporated: Diodes Incorporated is a broad-line global supplier of discrete, analog, and mixed-signal semiconductors serving consumer, computing, communications, and industrial markets. It competes with Calogic across discrete categories (MOSFETs, JFETs) but at vastly greater scale and breadth.

Direct peers

• Central Semiconductor: Central Semiconductor is a small, privately held U.S. manufacturer of discrete semiconductors (diodes, transistors, MOSFETs) targeting niche and legacy applications. Its scale, catalog focus on discretes, and reliance on authorized distributors closely mirror Calogic's business model.
• Linear Systems: Linear Systems is a small specialty manufacturer of JFET, MOSFET, and bipolar small-signal discrete transistors, as well as selected analog ICs. Its JFET-heavy product portfolio and small-scale specialty positioning make it one of the closest direct comparables to Calogic.
• Apex Microtechnology: Apex Microtechnology is a small specialty manufacturer of high-power analog ICs, including precision amplifiers and buffers for industrial, medical, and aerospace applications. Its analog IC focus, MIL-spec variants, and small-scale niche positioning are highly comparable to Calogic's amplifier/buffer business.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/calogic-corporation

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

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 Calogic