1N5518BUR MICROSEMI

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(or MLL5518B thru MLL5546B) WWW.Microsemi .COM 1N5518BUR – 1N5546BUR DESCRIPTION APPEARANCE The 1N5518BUR thru 1N5546B UR series of 0.5 watt glass surf ace mount Zener voltage regulators provides a selection from 3.3 to 33 volts in standard 5% toleran ces as well as tighter tole rances ide ntified by differe nt suffix letters on th e pa rt num ber. T hese are also ava ilable with a n internal- metallurgical-bond option by adding a “-1” suffix (see separate data sheet) including JAN, JANTX, and JANTXV military qualifications. Mi crosemi also offers nu merous othe r Z ener p roducts to meet higher a nd lo wer p ower applications. DO-213AA IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com FEATURES APPLICATIONS / BENEFITS

  • Surface mount equivalent to JEDEC registered 1N5518 thru 1N5546 series
  • Internally metallurgical bond option available by adding “-1” suffix that also includes JAN, JANTX, and JANTXV qualifications per MIL-PRF-19500/437 (see separate data sheet for same part numbers with “-1” suffix
  • DO-7 or DO-35 glass body axial-leaded Zener equivalents also available per JEDEC registration (see separate data sheets for part numbers 1N5518 thru 1N5546 DO-7 and DO-35
  • Regulates voltage over a broad operating current and temperature range
  • Extensive selection from 3.3 to 33 V
  • Standard voltage tolerances are plus/minus 5% with a “B” suffix, e.g. 1N5518BUR, etc.
  • Tight tolerances available in plus or minus 2% or 1% with C or D suffix respectively, e.g. 1N5518CUR, 1N5518DUR, etc.
  • Hermetically sealed surface mount package
  • Nonsensitive to ESD per MIL-STD-750 Method 1020
  • Minimal capacitance (see Figure 3)
  • Inherently radiation hard as described in Microsemi MicroNote 050 MAXIMUM RATINGS MECHANICAL AND PACKAGING
  • Operating and Storage temperature: -65ºC to +175ºC
  • Thermal Resistance: 150 ºC/W junction to end cap and 300ºC/W junction to ambient when mounted on FR4 PC board (1 oz Cu) with recommended footprint (see last page)
  • Steady-State Power: 0.5 watts at end cap temperature TEC < 100ºC or ambient temperature TA < 25ºC when mounted on FR4 PC board as described for thermal resistance above (see Figure 2 for derating)
  • Forward voltage @200 mA: 1.1 volts (maximum)
  • Solder Temperatures: 260 ºC for 10 s (max)
  • CASE: Hermetically sealed glass DO-213AA (SOD80 or MLL34) MELF style package
  • TERMINALS: End caps tin-lead plated solderable per MIL-STD-750, method 2026
  • POLARITY: Cathode indicated by band where diode is to be operated with the banded end positive with respect to the opposite end for Zener regulation
  • MARKING: cathode band only
  • TAPE & REEL option: Standard per EIA-481-1-A with 12 mm tape, 2000 per 7 inch reel or 5000 per 13 inch reel (add “TR” suffix to part number)
  • WEIGHT: 0.04 grams
  • See package dimensions and recommended pad layout on last page Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 1Copyright  2003 10-13-2003 REV A

(or MLL5518B thru MLL5546B) WWW.Microsemi .COM 1N5518BUR – 1N5546BUR ELECTRICAL CHARACTERISTICS (TA = 25oC unless otherwise noted. Based on DC measurements at thermal equilibrium; VF = 1.1 Max @ IF = 200 mA for all types.) MAX. REVERSE CURRENT (Note 4) VR – VOLTS JEDEC TYPE NUMBER (Note 1 and Note 7) NOMINAL ZENER VOLTAGE VZ @ IZT (Note 2) VOLTS TEST CURRENT IZT mAdc MAX. ZENER IMPEDANCE B-C-D SUFFIX ZZT @ IZT (Note 3) OHMS IR µAdc NON & A- SUFFIX B-C-D SUFFIX B-C-D SUFFIX MAXIMUM DC ZENER CURRENT IZM (Note 5) mAdc B-C-D SUFFIX MAX. NOISE DENSITY AT IZ = 250µA ND µV/ √Hz REGULATION FACTOR ∆VZ (Note 6) VOLTS LOW VZ CURRENT IZL (Note 6) mAdc 1N5518UR 1N5519UR 1N5520UR 1N5521UR 1N5522UR 3.3 3.6 3.9 4.3 4.7 5.0 3.0 1.0 3.0 2.0 0.90 0.90 0.90 1.0 1.5 1.0 1.0 1.0 1.5 2.0 115 105 0.5 0.5 0.5 0.5 0.5 0.90 0.90 0.85 0.75 0.60 2.0 2.0 2.0 2.0 1.0 1N5523UR 1N5524UR 1N5525UR 1N5526UR 1N5527UR 5.1 5.6 6.2 6.8 7.5 5.0 3.0 1.0 1.0 1.0 2.0 2.0 1.0 1.0 0.5 2.0 3.0 4.5 5.5 6.0 2.5 3.5 5.0 6.2 6.8 0.5 1.0 1.0 1.0 2.0 0.65 0.30 0.20 0.10 0.05 0.25 0.25 0.01 0.01 0.01 1N5528UR 1N5529UR 1N5530UR 1N5531UR 1N5532UR 8.2 9.1 10.0 11.0 12.0 1.0 1.0 1.0 1.0 1.0 0.5 0.1 0.05 0.05 0.05 6.5 7.0 8.0 9.0 9.5 7.5 8.2 9.1 9.9 10.8 4.0 4.0 4.0 5.0 0.05 0.05 0.10 0.20 0.20 0.01 0.01 0.01 0.01 0.01 1N5533UR 1N5534UR 1N5535UR 1N5536UR 1N5537UR 13.0 14.0 15.0 16.0 17.0 1.0 1.0 1.0 1.0 1.0 100 100 100 100 0.01 0.01 0.01 0.01 0.01 10.5 11.5 12.5 13.0 14.0 11.7 12.6 13.5 14.4 15.3 0.20 0.20 0.20 0.20 0.20 0.01 0.01 0.01 0.01 0.01 1N5538UR 1N5539UR 1N5540UR 1N5541UR 1N5542UR 18.0 19.0 20.0 22.0 24.0 1.0 1.0 1.0 1.0 1.0 100 100 100 100 100 0.01 0.01 0.01 0.01 0.01 15.0 16.0 17.0 18.0 20.0 16.2 17.1 18.0 19.8 21.6 0.20 0.20 0.20 0.25 0.30 0.01 0.01 0.01 0.01 0.01 1N5543UR 1N5544UR 1N5545UR 1N5546UR 25.0 28.0 30.0 33.0 1.0 1.0 1.0 1.0 100 100 100 100 0.01 0.01 0.01 0.01 21.0 23.0 24.0 28.0 22.4 25.2 27.0 29.7 0.35 0.40 0.45 0.50 0.01 0.01 0.01 0.01 NOTES: 1. TOLERANCE AND VOLTAGE DESIGNATION – The JEDEC type numbers shown without a suffix letter prior to the UR are +/-20% with guaranteed limits for only VZ, IR, and VF. Units with A suffix prior to the UR are +/-10% with guaranteed limits for VZ, IR, and VF. Units with guaranteed limits for all six parameters are indicated by a B suffix for +/-5.0% units, C suffix for +/-2.0% and D suffix for +/-1.0% prior to the UR. 2. ZENER VOLTAGE (VZ) MEASUREMENT – Nominal zener voltage is measured with the device junction in thermal equilibrium with ambient temperature of 25 o 3. ZENER IMPEDANCE (ZZ) MEASUREMENT – The zener impedance is derived from the 60 Hz ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (IZT) is superimposed on IZT. 4. REVERSE CURRENT (IR) – Reverse currents are guaranteed and are measured at VR as shown on the table. 5. MAXIMUM REGULATOR CURRENT (IZM) – The maximum current shown is as shown in MIL-PRF-19500/437. 6. MAXIMUM REGULATION FACTOR (∆VZ) – ∆VZ is the maximum difference between VZ at IZT and VZ at IZL measured with the device junction in thermal equilibrium. 7. PART NUMBER – These may be ordered as either 1N5518UR thru 1N5546UR or as MLL5518 thru MLL5546 part numbers. For JAN, JANTX, or JANTXV military types, see separate data sheet for the 1N5518UR-1 thru 1N5546UR-1 part numbers. Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 2Copyright  2003 10-13-2003 REV A