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New Products
www.us-
tech.com
Mill-Max Offers Connectors on Tape and Reel
Oyster Bay, NY — Three additional Mill-Max SMT spring-loaded connec- tors are now available packaged on
maximize soldering surface area and provide a secure attachment to the PCB. They can now be supplied on tape and reel due to a spe- cial “cap” which provides a pick and place surface for easy removal from the pocket, and placement on the board. Each pin posi- tion has its own tape size. The lowest profile
spring-loaded connectors, 0.1-in (2.54mm) in height, are offered in single and double row, and on 0.1 in. grid. The single row is available in 2-10 positions while the double is avail- able in 4-20. Both series have a mid-stroke travel of
SMT connectors now offered on T&R.
tape and reel. With this addition, all of the company’s connectors are now offered on tape and reel for automat- ed pick and place assembly. The 855-22-XXX-30-002191,
from 4-40 positions, are double row and on a space-saving 0.05 in. (1.27 mm) grid. Each spring pin has a base geometry of 0.029 in. (0.74mm) round, by 0.1 in. (0.25mm) tall, to
0.012 in. (0.3 mm) and full- stroke capability of 0.2-
0.024 in. (0.508-0.61 mm). These con- nectors function well in surface mount applications where above
board height is limited. Contact: Mill-Max Mfg. Corp.,
190 Pine Hollow Road, Oyster Bay,
NY 11771 % 516-922-6000 fax: 516-922-9253 E-mail:
rritter@mill-max.com Web:
www.mill-max.com
Exar: AC Step Driver for LED Bulbs
Fremont, CA — Exar Corporation, a supplier of high-performance inte- grated circuits and system solutions, has expanded its offering of AC step driver solutions for LED bulbs with the introduction of the XR46073. The new two-step LED current controller for AC step driving has improved line regulation primarily for A19 LED bulb applications. The line regulation is improved by a reported factor of two over the company’s previous generation. The patented AC step driv-
ing ICs provide solutions for bulb, tube and downlight applications that do not require the use of inductors, transformers, elec- trolytic capacitors or metal oxide varistors (MOVs). This allows customers to eliminate the sepa- rate driver circuit board and greatly reduce the total BOM cost of LED bulbs. In addition, the step driver deliv-
ers a high power factor, low THD, high surge immunity, low flicker, and dimming capability with a wide range of industry standard TRIAC dimmers. The company’s prior generation of AC step drivers is comprised of single step controllers, each controlling an individual current level to the LED. The XR46073 integrates two steps of current control to the LED strings, improving the line regulation of the
circuit by monitoring the line voltage and adjusting LED drive current pro- portionally. The step driver is over-voltage
and over-temperature protected. During an over-temperature condi- tion, the step driver smoothly and
December, 2015
Two-step driver for LED bulbs
continuously reduces current to the LED string, reducing power dissipa- tion in the process, until tempera- tures have stabilized at an accept- able level. The XR46073 is available in a
RoHS compliant, green and halogen free, space-saving 2 x 2 mm (0.08 x
0.08 in.) package. Contact: Exar Corporation,
48720 Kato Road, Fremont, CA 94538 % 510-668-7000 or 855-755- 1330 Web:
www.exar.com
Surface Mount Screws from PennEngineering
Danboro, PA —PennEngineering has introduced surface mount, spring- loaded captive panel screws designed to provide secure attachment for printed circuit boards. These metal captive screw assem- blies mount in a single piece on a board, using the pick- and-place method, and can be installed at the same time as other surface mount com- ponents. The captive screw technology eliminates the issues and risks associated with the handling and potential loosening of stan- dard screws. They also allow for subsequent access when necessary. PEM Type SMTPFLSM
captive panel screws are sup- plied on tape and reel con- forming to industry stan- dards, and are compatible with existing SMT automated instal- lation equipment. A polyimide patch affixed to the end of the fastener allows for vacuum pickup. Unlike conventional fasteners,
there is no requirement for secondary installation operations, which can damage bonds and create extra scrap. An anti-cross thread feature corrects off-angle installations and prevents thread damage during the mounting process. The fasteners install reliably in
boards of any hardness as thin as 0.063 in. (1.6 mm). They are avail- able in thread sizes #4-40 through #6-32, M3 through M3.5, and in mul-
Spring-loaded surface mount fasteners.
tiple lengths. Depending on their length, the captive screw is designed to retract flush in up position. The screws join a growing portfolio of PEM surface mount fasters created to perform a wide range of attach-
ment functions in PCB applications. Contact: PennEngineering,
5190 Old Easton Road, Danboro, PA 18916 % 800-237-4736 or 215-766-8853 fax: 215-766-0143 E-mail:
info@pemnet.com Web:
www.pemnet.com
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