Illinois Capacitor Offers Custom Supercapacitor Modules - Wednesday, May 27, 2015
Illinois Capacitor Supercapacitor (EDLC) Modules expand power storage options with greater capacitance and voltage options!
  • Virtually unlimited capacitance and voltage ratings
  • Temperature ratings to match your needs
  • Operating Life = Up to 10 years with 500,000 cycles
  • Active or passive balancing
  • Fully customizable
Tags :  Illinois CapacitorCapacitorSL
Illinois Capacitor Offers Axial-Leaded Aluminum Electrolytic Capacitors- Wednesday, April 22, 2015

High Performance, Long Life and Small Package Size
Perfect for Low-Profile designs!

  • Standard Values: 0.47µF to 22,000µF
  • Voltage Range: 6.3 to 450 WVDC
  • High Ripple Current Ratings
  • Compact and RoHS compliant.
  • Load Life Rating: 2,000 hrs @ 85°C and 1,000 hrs @ 105°C

Applications: General purpose filtering, audio coupling and cross-overs, DC blocking and much more!

Available Axial-Leaded Aluminum Electrolytic Capacitors
(Click on series for parametric search)
  • TTA Series: General Purpose +85°C rated at 2,000 hours.
  • TMA Series: General Purpose Extended Life +105°C at 2,000 hours.
  • TLS Series: Low Leakage +85°C rated at 2,000 hours.
  • BPA Series: Bi-Polar/Non-Polar +85°C rated at 2,000 hours.


Exciting things are happening at Illinois Capacitor! 

It was announced today that Illinois Capacitor Inc., and its affiliates have been acquired by Cornell Dubilier Marketing, Inc. This acquisition brings together two of the leading manufacturers of capacitors for the electronics marketplace. For the foreseeable future, Illinois Capacitor will operate as a separate subsidiary of Cornell Dubilier, and will continue to be headquartered in suburban Chicago. Its Asian headquarters will remain in Hong Kong. 

The two companies have mostly complementary product lines, with some areas of overlap. Illinois Capacitor and its customers will benefit by an expansion of product sales and distribution resources, as well as enhanced engineering and manufacturing capabilities. Cornell Dubilier will gain product breadth with Illinois Capacitor’s extensive board-level product lines, which include aluminum electrolytic, polymer, film; and EDLC (super) capacitors and modules.

Illinois Capacitor President Basil Jacobson said, “We are thrilled to be joining the Cornell Dubilier team. Both companies will be exceptionally well positioned to expand sales through broadening product offerings and sales outlets. At this time, Cornell Dubilier has very strong product distribution in the US, with IC having extensive capabilities in Asia.” Jacobson continued, “In addition, the product line expansion will create opportunities for both brands.”

Both companies are privately held and both have grown up with the electronics industry. Illinois Capacitor traces its history back over 80 years, with Cornell Dubilier’s roots extending over 105 years! There are also many shared values among the two organizations, with very high emphasis on product quality, customer service and delivery. 

Illinois Capacitor Introduces Quick Release Motor Run Capacitor- Tuesday, February 17, 2015


Illinois Capacitor QPC Motor Run Capacitors are quicker to
install and offer the durability and reliability you need.

  • Standard values from 0.4 to 10µF; 250 to 450 VAC, 50/60Hz
  • Operating temperature ranges from -25°C to +85°C
  • Exclusive locking push-wire contacts speed installation and eliminate the need to solder
  • Multiple contact option eliminates the need for terminal strips
  • Fast installation with slide-lock mounting brackets
  • Very rugged, flame-retardant (UL94V-O) case
  • UL810, IEC 566-1982, CNS4327, JIS C4908

Designed for continuous use in motor run applications and for power factor correction.

QPC Series Motor Run Capacitors can save significant installation time when compared to conventionally leaded or terminated devices.  As shown below, just press an 18-20 gauge wire into one of the sockets and it becomes locked in place.  If you need to make a change, slide the tip of a probe or a pin into the adjacent operating hole and the wire can be removed.  The metal mounting bracket also speeds assembly, as it can be mounted first.  Just slide the capacitor onto the bracket and it locks in place.

- Click to View Additional Motor Run Capacitors -


Illinois Capacitor Announces New Polymer Capacitor- Monday, February 2, 2015
New AVG Polymer Capacitor Opens The Door To More Applications With 125°C, 160 WVDC Performance!
  • Values from 4.7 to 1,500µF
  • 16 WVDC to 160 WVDC
  • Operating temperature ranges from -55°C to +125°C
  • Load Life rated up to 2,000 hours @ 125°C
  • Ultra-low ESR and high Ripple Current
Applications include: high-frequency switching power supplies, DC-DC converters, commercial grade LED lighting, telecommunications, high-performance graphics cards, automation controls and more....
Tags :  CapacitorIllinois CapacitorPolymerSL
Panasonic To Discontinue Manufacturing Snap-in Type Capacitors- Monday, August 18, 2014

Panasonic has announced it will discontinue Manufacturing Aluminum Electrolytic Snap-in Type Capacitors with no replacement available.  Panasonic has been a global leader in manufacturing Snap-in Capacitors.  The Series' they are to discontinue are: U, UE, NH, NHE, NXA, EX, MC, UP, HA, HB, TU, NH, NHE, MD.

Capacitors in these series' made by Panasonic are NOT recommended for new designs.  If your company is currently using these capacitors R&J Components can offer you an alternate part made by Nichicon or Illinois Capacitor. Both of these companies manufacturer Snap-in Capacitors.  Please see the links below.

Nichicon -

Illinois Capacitor -

If you need to cross a Panasonic Snap-In Capacitor call R&J Components today, 631.234.3330

Illinois Capacitor Price Increase Announcement- Tuesday, May 27, 2014

This announcement is intended to provide 30 day notice that effective on June 23rd, 2014 that Illinois Capacitor will be having a price increase.  If you need to order any products please do so prior to the date listed above or you will be subject to this increase in pricing. 

Tags :  Illinois CapacitorCapacitorSL
MINIBOX style capacitors- Tuesday, April 29, 2014

MINIBOX style capacitors are an excellent choice for general purpose applications such as bypass,decoupling,smooth & some timing,energy storage/discharge & arc suppresion applications.

Specialized MINIBOX capacitors are designed for Radio Interference Suppression (Class X2, Class Y) & also for high current applications.

Designed for PC Board insertion, they offer volumetric efficiency in rectangular space saving body types with PCM ranging from 5.00 mm to 30 mm.

MINIBOX capacitors often replace dipped Radial Film capacitors in PC board applications.

MINIBOX capacitors are offered in bulk packaging as well as tape & reel for automatic insertion machinery.

R&J Components is a Franchised/Authorized stocking distributor of MINIBOX type capacitors.
We stock & sell product by such great MINIBOX Capacitor Mfgr's as: ILLINOIS CAPACITOR & MERITEK.

Our technical ability is second to none, We offer expert cross referencing & samples are never an issue at R&J Components!

Tags :  MiniboxCapacitorIllinois CapacitorMeritekMF
High Voltage Aluminum Electrolytic Capacitors- Monday, April 28, 2014

R&J Components is in business since 1948 with over 32 million high voltage aluminum   electrolytic capacitors. We stock all types and values including:

  •  Computer grade: 124,000+ in stock including 23A, CGS, 36D series
  •  Snap mount:   1.4 million+ in stock including KMH, LGQ, LLK, 200U series
  •  Radial lead:     30 million+ in stock including UVZ, UVR, CKH, CKE series
  •  Axial lead:      1.2 million+ in stock including 53D, 39D, TTA, 2222 series    

We have stock on values up to 600 volts  

We are franchised and with over 100,000 sq ft of inventory we  stock many of the popular manufacturers including, Illinois capacitor, Nichicon, Genteq (GE), Meritek,Capacitor Industries and  Xicon

These capacitors have many Applications including:

Computer Grade (screw top) – HVAC, telecommunications, power systems.

Contact us with your requirements, and we will supply you with a quote from Genteq with a great price and any technical support you need.

Snap Mount- high capacitance and voltage in a small form factor. Switching power supplies and UPS. We can offer Nichicon and Illinois Capacitor direct form the factory.

Axialytic and Radialytics - used for filtering in power supplies and audio applications

Nichicon, Illinois capacitor can deliver high quality at a good price.   

If you have an application that requires high reliability we have one of the largest inventories in the world of mil spec 39018 style

All these capacitors are available in temperature ranges from the standard -40 + 85*C and the popular 105*C to the industrial 125*C

If you don’t see what you need please contact us. And we can help find an equal or upgrade to meet you application requirements.

With over 65yrs of experience and over 420,000 line items R&J is the right choice for all you component needs.


Illinois Capacitor- Wednesday, May 15, 2013

Illinois Capacitor (IC) is a leading manufacturer of high performance capacitors including; aluminum electrolytic, metalized film, power film and supercapacitors. All IC products meet the industry’s highest quality standards. As capacitor technology changes, Illinois Capacitor remains dedicated to providing leading-edge capacitors in a broad range of values and offering engineers more options to enhance performance and lower costs.

Today, Illinois Capacitor is pioneering EDLC technology. Known as “supercapacitors,” Electric Double-Layer Capacitors (EDLC) provides the highest available capacitance values per unit volume and the greatest energy density of all capacitors. For example, Illinois Capacitor’s DCN series of supercapacitors offers capacitance values up to 3,500 Farads in a very small size. Other advantages of supercapacitors include; long life, low ESR, low heating levels during charge and discharge, high output power and improved safety.

Thanks in part to EDLC technology; utilization of Illinois Capacitor products continues to grow across several markets including; the wireless communications, electronic power technology, energy management, solar and wind power markets.