
SURFACE MOUNT TVS 
SCOTTSDALE DIVISION
MLL14KESD5.0 thru MLL14KESD170A 
W
M
.
C
M
M
DESCRIPTION 
APPEARANCE 
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. 
DO-213AB
IMPORTANT:  
For the most current data, consult 
MICROSEMI’s 
 website:  
FEATURES APPLICATIONS / BENEFITS 
 
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 
 
Excellent protection in clamping direct ESD level 
transients in excess of 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 
up 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 of 5V to 170V 
 
Hermetic DO-213AB package.  Also available in 
axial-leaded DO-41package (see separate data 
sheet for 14KESD5.0 series) 
MAXIMUM RATINGS 
 
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 –65
o
C to 175
o
C 
 
Thermal Resistance:  40
 o
C/W junction to end cap, or 
120
C/W junction to ambient when mounted on FR4 
PC board (1 oz Cu) with recommended footprint (see 
last page)  
 
Steady-State Power:  1.50 watts at T
EC
 < 115
o
C, or 
1.25 watts at T
A 
= 25
C when mounted on FR4 PC 
board and recommended footprint as described for 
thermal resistance (also see Figure 1) 
 
Derate at 22.8 W/
o
C above 25
o
C for P
PP
 (1
μ
s) and at 
15 mW/
C above 75
C for dc power. 
 
Forward Surge Current 500 amps for 1
μ
s at T
L
 = 
25
C (rise time > 100 ns). 
MECHANICAL AND PACKAGING 
 
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 
Microsemi 
Scottsdale Division 
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 
Page 1
Copyright 
 2002 
10-03-2003  REV A