Details, datasheet, quote on part number: MLL14KESD45C
DescriptionSurface Mount TVS
CompanyMicrosemi Corporation
DatasheetDownload MLL14KESD45C datasheet
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Features, Applications

DESCRIPTION These surface mount Transient Voltage Suppressor (TVS) devices feature the ability to clamp dangerous high voltage short-term transients such as produced by direct or radiated electro-static discharge phenomena before entering sensitive component regions of a circuit design. They are small economical TVSs targeted primarily for short term transients below a few microseconds while still achieving significant peak-pulse-power capability as seen in Figure 1.

IMPORTANT: For the most current data, consult MICROSEMI's website:

Excellent protection in clamping direct ESD level transients in excess 40,000 V per MIL-STD-750, Method 1020 (approx. 150 ns exponential wave) Absorbs ESD level transients of 14,000 Watts per MIL-STD-750, Method 1020 (approximately 150 ns exponential wave, or one microsecond transients to 4000 watts. See Figure #1 and #2 for overall transient Peak Pulse Power. Clamps Transients in less than 100 picoseconds Working Stand-off Voltage range to 170V Hermetic DO-213AB package. Also available in axial-leaded DO-41package (see separate data sheet for 14KESD5.0 series)

Protects Sensitive circuits from short duration fast rise time transients such as Electrostatic Discharge (ESD) or Electrical Fast Transients (EFT) Minimal capacitance (See Figure #3) Small surface-mount footprint for high density mounting Bidirectional features available by adding a "C" or "CA" suffix to part number

4000 Watts for One Microsecond Square Wave or 14,000 watts per ESD Wave form of MIL-STD-750, method 1020. See Surge Rating curve in Figures #1 and 2. Operating and storage temperature to 175oC Thermal Resistance: 40 C/W junction to end cap, or 120C/W junction to ambient when mounted FR4 PC board (1 oz Cu) with recommended footprint (see last page) Steady-State Power: 1.50 watts at TEC or 1.25 watts = 25C when mounted FR4 PC board and recommended footprint as described for thermal resistance (also see Figure 1) Derate at 22.8 W/oC above 25oC for PPP (1s) and at 15 mW/oC above 75oC for dc power. Forward Surge Current 500 amps for 25 C (rise time > 100 ns).

CASE: Hermetically sealed DO-213AB glass MELF package TERMINALS: End caps, tin-lead plated solderable per MIL-STD-750, method 2026 POLARITY: Cathode indicated by band. MARKING: Cathode band only TAPE & REEL optional: Standard per EIA-481-B with 12 mm tape, 1500 per 7 inch reel or 5000 per 13 inch reel (add "TR" suffix to part number) WEIGHT: 0.05 grams See package dimensions on last page

Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503


* For bidirectional, add a "C" or "CA" suffix after the part number, e.g. or MLL14KESD5.0CA for the or MLL14KESD5.0A part numbers respectively. Capacitance will be one-half that shown in Figure 3 for zero volts. At 4000 watts 1s square wave rating (See Figures 1 and 2).

tp Pulse Time FIGURE 1 Peak Pulse Power vs. Pulse Width
(*Exponential Wave Form Pulse Width to 50% Decay of Peak.) Copyright 2002 10-03-2003 REV A


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