Product Update:
Circuit protection devices
Slow-blow fuses come
in 1206 case size
Available in current ratings from 1 to 8 A in voltages from 24 to 63 V, the SolidMatrix slow-blow chip fuses come in a 1206 case size. The surface-mount devices feature a monolithic multilayer structure and withstand high in-rush currents.
The Pb-free devices comply with the RoHS directive. ($0.35 ea/30,000�available now.)
AEM, San Diego, CA
Information 858-481-0210, ext. 1224
http://www.aem-usa.com/chipfuses.html
Thermal circuit breaker
suits power distribution apps
Designed for the company's Series 282 DIN-rail cage-clamp terminal blocks, a pluggable thermal circuit breaker protects power distribution and automation systems, as well as process-control applications. The single-pole device protects circuits from 0.1 to 10 A and features a pushbutton reset.
Available in switching and nonswitching versions, with switching functions allowing the device to be connected and disconnected while under load. (Non-switching version, $10.38; switching version, $11.45�available now.)
WAGO, Germantown, WI
Jim Bachle 262-255-6333, ext. 129
Fax 262-255-3232
Solid-state relays thwart
short circuits, overload
The Series ZD, Series ZD20CF, Series ZD24CC, and Series LPD70 solid-state relays provide short-circuit and overload protection. The 1-A, 80-Vdc ZD uses a power FET switch and optical isolation to isolate control circuits from load transients.
The ZD20CF is rated to 2A at 60 Vdc and protects up to 33 Vdc, while the ZD24CC is rated to 500 mA at 80 Vdc and protects up to 60 Vdc. The dual-output LPD70 is rated to 250 mA at 28 Vdc and features internal thermal protection. ($18 ea/10,000�10 weeks ARO.)
Teledyne Relays
Hawthorne, CA
Antonio Gallegos 323-241-1264
Fax 323-241-1287
Linear solenoids meet
GFI requirements
The ZST1624N Long Life linear solenoids meet demanding GFI requirements, where standard thermal switches may lack the cycle times for repetitive on/off functionality. The board-mountable devices are rated for up to 1,00,000 actuations.
Available in footprints as small as 0.95 (L) x 0.72 (D) in., the parts can accommodate stroke lengths of up to 0.060 in. Class F insulation systems come standard. (Less than $3 ea/prod qty�available now.)
Bicron Electronics
Canaan, CT
Information 860-824-5125
Fax 860-824-1137
Fuseholder circuit-breaker
meets RoHS directive
The T9 Series fuseholder-style circuit breaker is Pb-free, complying with the EU's RoHS directive. Rated for 5 to 16 A, the device features snap-in mounting and pushbutton reset.
Terminals are 1/4-in. or 6.3-mm quick disconnect. The part's tripping operation is trip-free. ($1.52 ea/100�available now.)
Schurter, Santa Rosa, CA
Nathan Widger 800-848-2600
Fax 707-636-3033
EMP surge protectors
suit telecom frequencies
Designed for cell site applications in frequencies from 500 to 2,500 MHz, 50-W coaxial EMP surge protectors provide surge current of 10 kA (8/20 µs) through multiple strikes. VSWR is 1.15:1 and insertion loss is 0.2 dB.
The parts come standard with N female connectors in bulkhead configurations. Operating temperature range is –30° to 70°C. ($25 ea/small qty�stock to 5 weeks ARO.)
Response Microwave
Framingham, MA
Peter A. Alfano 978-456-9184
Fax 978-456-9188
http://www.responsemicrowave.com
EMI filters reduce
leakage current
Mountable with a single screw, EMI filters eliminate the capacitor-to-earth ground connection, reducing leakage current. The parts suit line voltages of 100 to 120 V and 200 to 240 V.
Standard models feature 5.0-mH common-mode inductors that offer up to 6-A current handling. Options include bypass capacitors for differential-mode noise rejection, and MOVs to protect against line transients. (Less than $3 ea/1,000�available now.)
Foster Transformer
Cincinnati, OH
Herm Harrison 800-963-9799
http://www.foster-transformer.com
Avionics device thwarts
lightning, EMP strikes
A device protects flight computers from lightning and EMP strikes. The part offers steady-state voltages of 28 V (25 A), and handles transient surges of 40 V for 80 µs/200 A.
The device features busbar consolidation, and common-mode and differential-EMC filtering. (From $800 ea/prod qty�8 to 10 weeks ARO.)
Sensitron Semiconductor
Deer Park, NY
Michelle Clune 631-586-7600, ext. 259
Fax 631-242-9798
Surge-arrestor gas tubes
suit telecom, medical apps
Surface-mount surge-arrestor gas tubes protect telecom, datacom, medical, and RF equipment against lightning surges and ESD. The parts are available in voltages from 90 to 500 V with two or three electrodes.
The devices automatically reset after each strike. ($0.90 ea/prod qty�2 weeks ARO.)
Citel, Miami, FL
Information 305-621-0022
Fax 305-621-0766
http://www.citelprotection.com
Overcurrent device
meets RoHS directive
Designed for communications infrastructure applications, the PolySwitch TSM600-400 resettable overcurrent device complies with the RoHS directive. The surface-mount part integrates two 1.2-W PPTC components matched to better than 0.3 W .
Rated hold current is 400 mA, and operating temperature range is from –40° to 85°C. ($1 ea/100,000�samples available now; prod qty, 8 weeks ARO.)
Raychem Circuit Protection
Menlo Park, CA
Information 800-227-7040
http://www.circuitprotection.com
Surface-mount fuse offers
200-A breaking capacity
The UMT250 surface-mount fuse features a breaking capacity of 200 A at 250/277 Vac in currents from 315 mA to 4 A. The 10 x 3 x 3-mm device occupies about 80% less space than traditional solutions such as a microfuse or 5×20-mm cartridge fuse.
Solder-immersion compatible, the device can replace axial- and radial-leaded through fuses. ($0.56 ea/100�stock to 8 weeks ARO.)
Schurter, Santa Rosa, CA
Nathan Widger 800-848-2600
Fax 707-636-3033
High-voltage diodes offer
true SMT compatibility
The SM3F, SP5L, and SP5S are true surface-mount high-voltage diodes, and suit applications such as switching, blocking, and component protection. The SM3F features a 3-kV PIV rating, a 75-ns recovery time, and 350-mA forward current.
The SP5L's PIV is 5-kV, recovery time is 75 ns, and forward current is 140 mA, while the SP5S features a 5-kV PIV, 20-mA forward current, and 60-ns recovery time. The parts are also available as SM3FG, SP5LG, SP5SG, denoting they have gull-wing leads. (SM3F/SM3FG, $0.95; SP5L/ SP5LG, $1.95; SP5S/SP5SG, $1.50�samples from stock, 4 to 6 weeks ARO.)
HV Component Associates
Farmingdale, NJ
Scott Smith 732-938-4499
Fax 732-938-4451
Safety relay provides
100,000 switching ops
Featuring a volume of less than 9 cm3 , the SIM112 safety relay endures more than 100,000 switching operations. The device is available with one normally open and one normally closed contact capable of switching currents from 10 mA.
Actuating capacity is 0.5 W, and response capacity is less than 0.25 W. (From $6.75 ea/100�stock.)
Jaxxen, Milford, CT
Information 203-878-0400
Fax 203-878-0458
Tiny safety relay
offers 6-A operation
Presented as the industry's smallest three-contact safety relay, the Elesta SIS212 measures 29.2 (L) x 16.6 (W) x 16.2 (H) mm. The normally closed contact is closest to the coil and provides control or feedback functionality, while the normally open contacts offer a switching capacity from 6 A at 250 V.
The part suits applications such as photoelectric cells, light curtains, foot mats, sensors, and frequency changers. (From $6.40 ea/500�stock.)
Jaxxen, Milford, CT
Information 203-878-0400
Fax 203-878-0458
Thermal protectors offer
overheat protection
The JP7, EP2, and BP thermal protectors offer high-reliability overheat protection in ac and dc applications. The parts offer automatic reset, and a dual-spring-mechanism design that provides shock and vibration resistance.
The JP7 suits ac equipment in harsh industrial conditions, while the EP2 serves low-voltage dc components. The BP is designed to automatically shut voltage in battery packs when batteries overheat. ($2.60�4 to 6 weeks ARO.)
Selco/ECC, Anaheim, CA
Sales 800-299-2332
Line-matching transformer
isolates telephone lines
Compatible with all standard modem circuitry that meets V.32, V.32 bis, and V.34 requirements, the LM302-1L line-matching transformer provides space-efficient isolation between sensitive electronics and telephone lines. The device features a 600-W impedance, a 1:1 turns ratio, and 2-kHz insertion loss at 1.5 dB.
The through-hole part is offered in a 17.9-mm2 footprint with a 10.7-mm height. Dielectric strength is 6,500 Vdc. (From $0.89 ea/10,000�stock to 6 weeks ARO.)
Datatronic Distribution
Romoland, CA
Sales 888-889-5391
Fax 951-928-7701
Building-block hubs
thwart surges, lightning
The four-port Sure/Fire building block hubs protect telecom, datacom, and LAN devices against surges and lightning strikes. The devices come with a variety of connector styles, including RJ-45, terminal block, DB9, DB25, and coax.
Suitable for 19-in. racks, the hubs feature a 25,000-A bulletproof housing. The devices come with a grounding wire, two grounding/mounting brackets, and rubber feet. (Per port, less than $25�available now.)
Bravo Communications
San Jose, CA
Dennis Mozingo 408-297-8700, ext. 112
Fax 408-297-8701
Diode arrays offer
ESD, EFT, surge protection
Available in a variety of package types including TO-style, surface-mount, and plastic and ceramic DIP packages, the MAD1103P, MAD1108P, and FSA2501P diode arrays offer ESD, EFT, and surge protection. The MAD devices offer a capacitance of 5 pF at 0 V, while the FSA offers 4 pF.
Reverse recovery times are 10 ns for the MAD1103P and FSA2501P, and 8 ns for the MAD1108P. (MAD1103P, $4.29; MAD1108P, $1.99; FAS2501P, $4.09�1 to 3 weeks ARO.)
American Microsemiconductor
Madison, NJ
Information 973-377-9566
Fax 973-377-3078
http://www.americanmicrosemi.com
EMI/RFI filters
handle up to 100 A
Available in current ratings to 100 A, a line of resin-sealed EMI/RFI filters offers continuous-voltage ratings to 1,250 Vdc/240 Vac at 400 Hz. Capacitances range from 1,000 pF to 0.22 µF.
The filters feature a rugged bolt-in style and suit. ($15 to $20 ea/prod qty�available now.)
Spectrum Control
Fairview, PA
Kerri Fabin 814-474-0355
Fax 814-474-3110
http://www.spectrumcontrol.com
ESD suppressor meets
RoHS requirements
Designed for low-voltage systems, the PGD 1J diode offers 16-kV bidirectional ESD suppression. The RoHS-compliant device is housed in a 1.1 x 0.75-mm package and features a 5.1-A (8/20-µs) transient rating.
Working voltage is 5 V, and the device is rated at 15 pF. ($0.12 to $0.15�8 weeks ARO.)
KOA Speer Electronics
Bradford, PA
Dawn McGriff 814-362-5536, ext. 266
Fax 814-362-8883
Low-pass-filter array
suppresses EMI/RFI
The EM4D-100L low-pass-filter array uses TVS diodes to suppresses unwanted EMI/RFI signals and protect against ESD in applications such as high-speed data interfaces. Featuring a 150-MHz cutoff frequency, the device offers attenuation of more than 35 dB from 800 MHz to 3 GHz.
The part comes in an 8-pin DFN package, and offers a leakage current of less than 100 µA in standby mode. ($0.32 ea/10,000�available now.)
ProTek Devices
Tempe, AZ
Han Zou 602-431-8101
Fax 602-431-2288
TVS devices
offer small size
The MicroClamp family of TVS devices offers three new parts in a 1.7 x 1.7 x 0.6-mm six-lead SC-89 package. Suitable as ESD protection in a variety of portable equipment, the µClamp0504A offers protection for up to four unidirectional lines, while the µClamp0505A handles up to five unidirectional or four bidirectional lines.
The µClamp0506A protects up to five bidirectional lines. Leads feature a lead-free matte tin finish that can be used in SnPb assembly operations. (0504A, $0.25 ea/1,000; 0505A, $0.26 ea/1,000; 0506A, $0.28 ea/1,000�available now.)
Semtech, Camarillo, CA
Terry Sears 805-480-2052
Industrial transformer
accommodates fuses
The SBE industrial-control transformer comes with the W Series fusing solution to accommodate a variety of fuse options. The WA solution features a two-pole primary fuse holder for Class CC fuses and a secondary holder suitable for 3AG or equivalent glass fuses.
The WB uses the same primary holder, and features a secondary holder that accepts FNM or equivalent fuses. Preassembled units are rated from 50 to 1,000 VA. (SBE transformers with W fusing, from $56.93�available now.)
Sola/Hevi-Duty
Rosemont, IL
Information 888-377-4384
http://www.solaheviduty.com
Chip bead inductors expand
gigahertz performance
The FBMH1608HL series chip bead inductors offer impedance values from 110 to 1,900 W and current handling from 0.4 to 2.5 A at frequencies from 1 to 3 GHz. The parts offer designers superior high-frequency noise suppression performance in applications such as DVD recorders, where power-hungry optical pickups can interfere with surrounding devices.
Available in seven models, the surface-mountable devices come in standard 0603 cases. ($0.05 ea/prod qty�8 weeks ARO.)
Taiyo Yuden
Schaumburg, IL
Chizuko Nishimori 847-925-0888
Fax 847-925-0899
Ferrite-bead dual inductor
is industry's first
The 14.0 x 13.5 x 7.0-mm PA0766NLT Power Bead inductor device integrates two independent inductors into a single core structure, offering a replacement for two discrete powdered-iron inductors in multiphase circuit applications. The part is available in values from 296 nH at 38 A per phase to 568 nH at 18.5 A per phase.
It requires no magnetic coupling, and can be connected in series or parallel to form a single inductor with values from 150 nH at 76 A to 770 nH at 25 A.
Pulse, San Diego, CA
John Gallagher 604-215-0542
Fax 604-215-0543
Advertisement
