Help with Pulse Transformers specifications:
Performance Specifications
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Input Voltage | The maximum primary voltage rating is the input voltage range of the transformer. Transformers for use with several nominal voltages need more than one primary winding. Enter the maximum voltage required for the application. Matching products will list all primary voltages available in addition to the maximum specified. | ||
Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
Output Voltage | The maximum secondary voltage rating is the output voltage range of the transformer. A transformer may provide more than one secondary voltage. Enter the maximum voltage required for the application. The matching products will list all secondary voltages available in addition to the maximum specified. | ||
Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
Pulse Repetition Rate | Pulse repetition rate is the number of pulses the device can produce per second, measured in pulses per second (pps). | ||
Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
Pulse Duration | The pulse duration (or pulse width) is the time interval between when the pulse amplitude reaches a specified fraction of its final amplitude, and the time the pulse amplitude drops to the same level. In general, this fraction is 50%. Other fraction levels are 90% and 1/e where e is the natural log base (e=2.71828). | ||
Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
Duty Cycle | The duty cycle is the ratio between the on and off time of the output voltage of the transformer. It measures efficiency. | ||
Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
Rated DC Current | The rated DC current (IDC) is the level of continuous direct current that can be passed through the transformer winding with no damage. The DC current level is based on a maximum temperature rise at the maximum rated ambient temperature. The rated current is related to the transformer's ability to minimize the power losses in the winding by having a low DC resistance. For low frequency currents the RMS current can be substituted for the DC rated current. | ||
Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
Operating Temperature: | Full required range of ambient operating temperature. | ||
Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
Encapsulated Transformers | Encapsulated transformers have a protective coating of cured plastic or other encapsulant which encloses the unit and provides weatherproofing. | ||
Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
General Specifications
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Mounting / Form Factor | |||
Your choices are... | |||
Chassis Mount | A chassis-mounted transformer has tabs to facilitate screwing it down. | ||
Chip Transformer | Chip transformers have a form factor of an integrated circuit (IC) chip. They are typically manufactured using thin-film technology. | ||
Dish / Disk Mount | A simple rubber washer and metal disk or dish secures the transformer to the chassis or board. There is usually a through-hole in the middle of the disk that allows for a screw to hold the transformer down. | ||
H-Frame | H-frame mounting is used in applications where high vibration or shock is present. It is an "H" shaped frame that the transformer sits on. The frame is secured to the chassis or board. | ||
Modular Jack | Magnetics incorporated into the RJ-45 form factor ensure high common mode noise immunity, while maintaining signal integrity. | ||
Pad-Mounted | Pad-mounted transformers are mounted on the ground, sitting on a concrete (or other material) pad. They are normally step-down transformers used in power distribution systems to step down the voltage from the high voltage terminals of an underground distribution system to the low voltage of the end user’s needs. | ||
PC / PCB Mount | Any of a variety of signal transformers mounted on PCBs. They can either be surface-mounted or through-hole configurations, using the soldering method to hold the transformers. PC-mount transformers offer a small footprint for the design engineer looking to measure sensor current or voltage on a computer board. Some applications for PC or PCB transformers include sensing current overload, ground fault detection, metering, isolated current feed-back signal in switch mode power supplies, motor current load / overload, lighting, switch controls, ultra-sound current, high resolution sonar current, and isolated bi-directional current sensor with full wave bridge. | ||
Other | Other unlisted, specialized, or proprietary transformer mounting techniques. | ||
Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
Standards / Compliance | |||
Your choices are... | |||
RoHS Compliant | Restriction of Hazardous Substances (RoHS) is a European Union (EU) directive that requires all manufacturers of electronic and electrical equipment sold in Europe to demonstrate that their products contain only minimal levels of the following hazardous substances: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl and polybrominated diphenyl ether. RoHS became effective on July 1, 2006. | ||
ANSI | American National Standards Institute (ANSI) does not itself develop American National Standards, but it facilitates standards development by establishing consensus among qualified groups. | ||
CSA | Canadian Standards Association (CSA) establishes standards of safety for products and helps preserve the environment. CSA tests and certifies products for national in international companies. | ||
IEC | International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes international standards for all electrical, electronic, and related technologies. | ||
MIL-STD | The transformer satisfies U.S. military standards or specifications (MIL-SPEC). There are many testing standards associated with MIL standards. | ||
UL | Underwriters Laboratories Inc. (UL) is an independent, not-for-profit product safety testing and certification organization. | ||
TUV | TÜV Rhineland Berlin-Brandenburg appraises tests and certifies technical equipment and products according to international quality standards, and then registers those in compliance. | ||
VDE | The Germany-based VDE Testing & Certification Institute is accredited on a national and international level in the area of testing electrotechnical products. Testing is conducted for safety, electromagnetic compatibility, and other characteristics. | ||
WEEE Compliant | Waste Electrical and Electronics Equipment (WEE) is a European Union (EU) Directive that aims to encourage the reuse, recycling, and recovery of electrical and electronic equipment, and to improve the environmental impact and performance of this equipment. WEEE establishes the requirements and criteria for the collection, treatment, recycling, and recovery of this equipment. It makes producers responsible for financing these activities, and retailers and distributors must provide means for consumers to return used or obsolete equipment without charge. | ||
Other | Any other agency that that tests or certifies electrical, electronic, or electrotechnical products. | ||
Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||