specialists in obsolete semiconductors
ts can ship over 100 million semiconductor devices from stock including more unusual and obsolete transistors, diodes and integrated circuits. Our on-line search facility enables you to swiftly locate the item you are seeking.
Mushroom Components was established in 1993 as an independent British 'trade-only' stocking distributor of electronic components selling on a world-wide basis.
not only supply state of the art items but also specialize in obsolete semiconductors. Customers include major UK manufacturers as well as many important global distributors and brokers.
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Our world class manufacturers include:- ST Micro - MOTOROLA TI- HARRIS - NSC -TOSHIBA SAMSUNG - TEMIC - HP - IR FAIRCHILD - PIC - PHILIPS- GEC-PLESSEY - ROCKWELL ZETEX - SIEMENS -ANALOGUE DEVICES - MAXIM - CYPRESS ZILOG - AMD - SEEQ - NEC MICROCHIP - INTEL - IXYS SEMELAB - MITSUBISHI -
The Directors of the Company have been actively involved in the Electronics Industry since the mid 1960's and whilst they appreciate that in this economic climate prices are important, their customers also recognize the importance of old-fashioned qualities of integrity and service.
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Managing Director - Paul Vaughan
"...we were one of the first UK electronics companies to realize the potential of the Internet and have become a truly global source of obsolete semiconductors!......"
Mushroom Components moved to their present warehouse in Kempston, Bedford in 2003
The market town of Bedford is 50 miles north of London and is conveniently situated for major rail and road networks. Orders are normally shipped the same day as received and parts can be with customers anywhere in the world within hours.
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We are always keen to buy surplus or excess stock. Please email or fax your list in strict confidence. Instant cash settlement.
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Evox Rifa Film capacitors, Electrolytic capacitors, SMD capacitors, leaded capacitors
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. Film Capacitors
Electrolytic Capacitors
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Cross-reference of obsolete capacitor series
Over the course of time a number of capacitor types have been replaced by newer series with superior characteristics. This table lists the old models and their replacements. In many cases the modern type can be used without difficulty, though the user is urged to check the specifications (especially mechanical dimensions) carefully.
Click here if you wish to go directly to the Evox Rifa capacitor catalogs.
Old Type Modern Replacement
CFR (Note 4) SMR, PFR
CMK (Note 4) SMR
PDR (Note 2) PHE450
PEG122 PEG124
PEH165 PEH430 (400-450V)
PEH300-330 PEH430 (400-450V)
PFE210 (Note 1) PFR, PHE426
PFE216 (Note 1) PFR, PHE426
PFE225 (Note 1) PFR, PHE426
PHE241 MMK
PHE242 MMK
PHE243 MMK
PHE280 MMK
PHE307 SMR
PHE351 MMK
PHE353 MMK
PHE403 (Note 2) PHE426
PHE404 (Note 2) PHE426
PHE420 (Note 2) PHE426
PHE425 PFR, PHE426
PHE427-428 (Note 2) PHE450
PHE430 (Note 2) PHE450
PHE431 (Note 2) PHE450
PHE800 PHE840
PHE810 PHE840
PHE830 PHE840
PHE843 PHE840
PHG490 PHG491
PHH481 (Note 3) ICAR TYPE MSR25
PHU483 (Note 3) ICAR TYPE MSR25
PHU484 (Note 3) ICAR TYPE MSR25
PME2602 PME260
PME2614 PME261 (220vac)
PME2616 PME261 (300vac)
PME2631 PME261 (500vac)
PME273 PME271M (ins. leads)
PME274 PME271M
PME275 (10 & 15mm pitch) PME290
PME275 (20.3 & 25.4mm pitch) PME265
PMP518-519 (Note 3) ICAR TYPE MSR25
PMP522 (Note 3) ICAR TYPE MSR25
PMR5 ... 37.5 (Note 2) PHE426
PMR202 (125vac) PMR205
PMR202 (250vac) PMR209
PMR2052 PMR205
PMR2062 PMR205
PMR207 PMR205 (ins. leads)
PMZ2046 PME271M
PMZ2048 PME271M
PMZ2050 PME271M
PMZ2058 PMZ2035
PSR (Note 2) PHE450
PZB4002 PZB300
PZB4003 PZB300
SFA (Note 1) PFR
SFR (Note 1) PFR
Note 1: These types were made in polystyrene film which is no longer available from any source. Replacement types are made with polypropylene and have different electrical and physical characteristics.
Note 2: If these types are being used for pulse or AC applications be sure to check out the PCCad software and tech note available on this site.
Note 3: These types are no longer made by Evox Rifa. Replacement types are available from ICAR, an Italian company, as well as other sources.
Note 4: The only remaining supplier of polycarbonate film is ceasing production. SMR uses PPS dielectric, PFR uses polypropylene. Read about it.
Last modified: May 03, 2002
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