MICROCHIP 1N4989CUS

This surface mount Zener voltage regulator series is designed for high-reliability applications where failures cannot be tolerated. These industry-recognized 5-watt Zener voltage regulators are hermetically sealed in a void-free glass construction with internal metallurgical bonding. It includes standard 5% tolerance as well as tighter tolerance Zener selections from 3.3 to 390 volts, identified by different suffix letters on the part number. By removing the "US" suffix, they are also available in axial-lead packages for through-hole mounting (refer to separate datasheets for 1N4954 to 1N4996, 1N5968 to 1N5969, and 1N6632 to 1N6637). Microsemi also offers many other Zener products to meet higher and lower power ratings in both through-hole and surface mount packages.

• Popular JEDEC registered series
• Void-free hermetically sealed glass package
• Triple-level passivation
• 1N4954US through 1N4996US use internal "Class I" metallurgical bonding; 1N6632US through 1N6637US and 1N5968US through 1N5959US use "Class III" metallurgical bonding
• JAN, JANTX, JANTXV, and JANS versions available per applicable standards
• Axial-lead equivalents available (see separate datasheets for 1N4954 through 1N4996, 1N6632 through 1N6637, and 1N5968 through 1N5969)

• Voltage regulation across wide operating current and temperature ranges
• Wide selection from 3.3 to 390V
• Standard voltage tolerance of ±5% (no suffix)
• Tight tolerances of ±2% or ±1% available with C or D suffix respectively
• Extremely rugged construction