Semiconductor Circuits, Inc.
Semiconductor Circuits, Inc. Since inception the company has designed and manufactured AC to DC and DC to DC power converters for the OEM electronics industry. In 1985
- 603-893-2330
- 603-893-6280
- 14 Tinker Avenue
Unit #1
Londonderry, NH 03053
United States of America
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Product
DCDC
DP Series
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The DP family is an economically priced high performance series of regulated DC/DC converters offering single and dual outputs. Features include MOSFET design operating at a switching frequency of 100Khz, continuous short circuit protection, LC input filter, 500 Vdc I/O isolation, and an operating temperature range of -25°C to +71°C with no derating. These miniature converters maintain excellent regulation over varying line and load conditions (0.2% for line and 0.5% for load). They are packaged in an IC compatible 24 pin DIP configuration measuring 1.25” x 0.8” x 0.4” high.
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Product
DCDC
TA Series 25 Watt
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The 25-Watt TA series operates over an ultra wide input range of 9-36 Vdc or 20-72 Vdc. Efficiencies of 77% are typical over varying load conditions of 25% to 100%. Additional features include input reverse polarity protection, remote on/off control, logic compatible with CMOS or open collector TTL, short circuit protection with auto restart, overvoltage protection, and an operating temperature range of -25°C to +71°C with no derating. Units are packaged in a six-sided continuous shielded case for EMI/RFI protection and measure 2.5” x 3.0” x 0.83”
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Product
DCDC
SC15A Series
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The SC15A series of cost sensitive single and dual output 15 watt DC/DC converters arespecifically designed for critical applications requiring a compact, low profile case.
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Product
ACDC
MP Series
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The MP Series boast over a decade of reliable, field proven service and are the recognizedindustry standard for high performance AC/DC power supplies.
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Product
DCDC
QQA Series
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The QQA series features the latest in MOSFET design, state of the art surface mount technology, and offers a 4:1 ultra-wide input range, and efficiencies greater than 80% (typ). Features include continuous short circuit protection, 500 Vdc I/O isolation, and an operating temperature range of -25°C to +71°C with no derating. All models are packaged in a six-sided shielded miniature case measuring only 1.0” x 2.0” x 0.4” high.
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Product
DCDC
TA Series 18 Watt
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The 18-Watt TA series operates over an ultra wide input range of 9-36 Vdc or 20-72 Vdc. Efficiencies of 77% are typical over varying load conditions of 25% to 100%.
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Product
ACDC
ES Series
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The ES Series of line operated power supplies features near constant efficiency over theentire rated input voltage range. These electrically identical families employ a highly efficient, closed loop ripple regulation circuit, which contains a low pass filter. Each stage, transformer, filter and regulator is engineered for maximum efficiency.
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Product
ACDC
P Series
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The P Series boast over a decade of reliable, field proven service and are the recognized industry standard for high performance AC/DC power supplies. The P Series is 2.0” pin spacing..
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Product
DC-DC High Performance
CPP Chassis Mount Series
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Offers a rugged package in applications where a PCB may not be available to mount to.
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Product
DCDC
SC20A Series
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The SC20A series is an economically priced 20 watt DC/DC converter featuring ultra-wideinput range, efficiencies to 85% and a continuous six-sided shielded case. Telecom models (-48) feature thermal shutdown and undervoltage lockout compatible with ETS 300 132-2 paragraph 4.6. Other key features include: overvoltage protection, output trimadjustability, TTL and CMOS compatible remote on/off, short circuit protection and small size. The SC20A series measures only 1.6” x 2.0” x 0.40” and offers a power density of 15.7 watts/cu. in.
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Product
DC-DC High Performance
CPT 16th Brick Series
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Open frame sixteenth-brick DC-DC converter that conforms to industry standard specifications (DOSA). The converter operates over an input voltage range of 36 to 75 VDC, and provides a tightly regulated output voltage with an output current rating of 20 A.
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Product
DC-DC High Performance
CP75 1 x 2 Series
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High performance DC-DC converter offers high efficiencies of 91% typical. The high efficiency of the CP75 series allows for minimal derating over a wide ambient temperature range.
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Product
DCDC
HA/HP Series
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The HA/HP series features the latest in MOSFET design, state of the art surface mount technology, and offers a 4:1 ultra-wide input range, and efficiencies greater than 75% (typ). Features include Pi input filter to reduce input reflected ripple, continuous short circuit protection, and excellent line and load regulation of ±0.25% for line and ±1.0% load. Additional standard features include, 500 Vdc I/O isolation, and an operating temperature range of -25°C to +71°C with no derating. All models are packaged in a six-sided shielded miniature case measuring only 2.0” x 2.0” x 0.375” high.
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Product
DCDC
DPU Series
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The DPU is an economically priced series of miniature DC/DC converters offering both single and dual outputs. These unregulated converters offer the latest in MOSFETtechnology. Featuring efficiencies to 80% and a calculated MTBF in excess of 1,000,000 hours. Additional features include an operating temperature range of -25°C to +71°C with no derating and a LC input filter to reduce the reflected ripple. All this in a package measuring 1.25” x 0.8” x 0.4 high.
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Product
DC-DC High Performance
CPC Chassis Mount Series
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High performance DC-DC converters offer high efficiencies of 93% typical (12V model.) This high efficiency allows for minimal output current derating at elevated ambient temperatures.
