Bel`s Portfolio of PPTC Resettable Fuses Now Includes 5 Surface-Mountable Series

Chips Optimized to Protect Circuits in Most Popular Consumer Electronic Products
and Systems
JERSEY CITY, N.J.--(Business Wire)--
Announced today by Bel Fuse Inc. (NASDAQ: BELFA)(NASDAQ: BELFB), a premier
developer of fuses and magnetic-based solutions for high-speed networking and
computer applications, is the expansion of their 0ZCx Series of surface
mountable Polymeric Positive Temperature Coefficient (PPTC) resettable fuses.
The RoHS-compliant, lead-free and halogen-free Series features Bel`s unique
polymer formulation to ensure long-life performance and superior overcurrent
protection in the broadest range of consumer electronics. Offered in five
EIA/IECQ case sizes ranging from 0805 to 2920, the chip fuses are rated up to 60
VDC with current ratings up to 3A. Chips are specifically engineered to limit
the flow of dangerously high current during fault conditions to protect products
and systems from overcurrent surges and overtemperature faults. In the event of
a fault, fuses reset themselves once power is removed, the fault is corrected,
and the voltage is reapplied. Their resettable functionality, coupled with
unparalleled reliability, makes Bel`s 0ZCx Series the ideal alternative to
traditional fuses and fusible links. Moreover, they facilitate the utmost in
design flexibility and manufacturing efficiencies while enabling OEMs/ODMs to
minimize repair, service, and warranty expenses. Materials meet UL-94V-0
requirements.

The 0ZCx Series is appropriate for use on high-density PC boards in a wide array
of consumer electronics applications in which safety and reliability are
critical factors. They are commonly specified for use in PDAs/digital cameras,
MP3 players, video recorders, and set-top boxes. Parts are equally well suited
for battery and port protection in mobile phones, port protection in game
consoles, plug and play protection for PC motherboards and peripherals, USB
peripherals, disk drives, and CD-ROMs.

Boasting a fast trip time and provided in an industry-standard 0805, 1206, 1210,
1812, or 2920 footprint, the 0ZCx Series feature hold current ratings from 50mA
to 3A. PTC chips` operating temperature range is -40 degrees C to +85 degrees C.

To learn more about Bel`s 0ZCx Series polymer PTC resettable fuses, visit
http://www.belfuse.com/PTC Resettable Devices.

Prices for the 0ZCx Series range from $0.08 to $0.20 each in production
quantities, depending on case size, voltage and hold current ratings. While
delivery is from stock to 8 weeks, samples are immediately available.

About Bel

Bel (http://www.belfuse.com) and its divisions are primarily engaged in the
design, manufacture, and sale of products used in networking,
telecommunications, high-speed data transmission, and consumer electronics.
Products include magnetics (discrete components, power transformers and MagJack
connectors with integrated magnetics), modules (DC-DC converters, integrated
analog front-end modules, custom designs), circuit protection (miniature, micro
and surface mount fuses) and interconnect devices (passive jacks, plugs and
cable assemblies). The Company operates facilities around the world.

Except for historical information contained in this news release, the matters
discussed are (including information regarding the 0ZCx PTC Fuse Series)
forward-looking statements that involve risks and uncertainties.Among the
factors that could cause actual results to differ materially are the following:
the effect of business and economic conditions, the impact of competitive
products and pricing; capacity and supply constraints or difficulties; product
development, commercializing or technological difficulties; the regulatory and
trade environment; and the risk factors reported from time to time in the
Company's SEC reports.

Bel Fuse Inc.
Donna Marganella, 858-676-9650 Ext. 108
or
Berkman Associates, 310-826-5051

Copyright Business Wire 2009