SCOTTSDALE DIVISION
1N4678UR thru 1N4717UR
(or MLL4678 thru MLL4717)
WWW.Microsemi .COM 1N4099UR–1N4135UR
1N4614UR – 1N4627UR
GLASS SURFACE MOUNT 0.5 WATT
ZENERS
DESCRIPTION APPEARANCE
The 1N4678UR thru 1N4717UR series of 0.5 watt glass surface mount
DO-213AA Zener voltage regulators provides selection from 1.8 to 43 volts
in standard 5% tolerances as well as tighter tolerances at a very low test
current of 50 µA. These are also available with an internal-metallurgical-
bond option by adding a “-1” suffix (see separate data sheet) including
military upgrade screening options. Microsemi also offers numerous other
Zener products to meet higher and lower power 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
1N4678 thru 1N4717 series
• Internal metallurgical bond option available by
adding a “-1” suffix (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 sheet for part numbers 1N4678
thru 1N4717 series
• Regulates voltage over a broad operating current and
temperature range
• Extensive selection from 1.8 to 43 V
• Standard voltage tolerances are plus/minus 5% with
no suffix
• Tight tolerances available in plus or minus 2% or 1%
with additional C or D suffix respectively
• 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: 150ºC/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 Figure 1)
• 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 @100 mA: 1.5 volts (max)
• 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-B 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 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
3-12-04 REV A
SCOTTSDALE DIVISION
1N4678UR thru 1N4717UR
(or MLL4678 thru MLL4717)
WWW.Microsemi .COM 1N4099UR–1N4135UR
1N4614UR – 1N4627UR
*ELECTRICAL CHARACTERISTICS @ 25ºC
NOMINAL
ZENER
VOLTAGE
(Note 2)
ZENER
TEST
CURRENT
MAXIMUM
VOLTAGE
REGULATION
(Note 3)
MAXIMUM
REVERSE
LEAKAGE
CURRENT
MAXIMUM
DC ZENER
CURRENT*
VZ I
ZT ∆VZ IR @ VR IZM
INDUSTRY
PART
NUMBER
(Note 1)
MICROSEMI
PART
NUMBER
(Note 1) VOLTS µA VOLTS µA VOLTS mA
1N4678UR
1N4679UR
1N4680UR
1N4681UR
1N4682UR
MLL4678
MLL4679
MLL4680
MLL4681
MLL4682
1.8
2.0
2.2
2.4
2.7
50
50
50
50
50
0.70
0.70
0.75
0.80
0.85
7.5
5.0
4.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
240
220
200
190
180
1N4683UR
1N4684UR
1N4685UR
1N4686UR
1N4687UR
MLL4683
MLL4684
MLL4685
MLL4686
MLL4687
3.0
3.3
3.6
3.9
4.3
50
50
50
50
50
0.90
0.95
0.95
0.97
0.99
0.8
7.5
7.5
5.0
4.0
1.0
1.5
2.0
2.0
2.0
170
160
150
140
130
1N4688UR
1N4689UR
1N4690UR
1N4691UR
1N4692UR
MLL4688
MLL4689
MLL4690
MLL4691
MLL4692
4.7
5.1
5.6
6.2
6.8
50
50
50
50
50
0.99
0.97
0.96
0.95
0.90
10.0
10.0
10.0
10.0
10.0
3.0
3.0
4.0
5.0
5.1
120
110
100
90
70
1N4693UR
1N4694UR
1N4695UR
1N4696UR
1N4697UR
MLL4693
MLL4694
MLL4695
MLL4696
MLL4697
7.5
8.2
8.7
9.1
10.0
50
50
50
50
50
0.75
0.50
0.10
0.08
0.10
10.0
1.0
1.0
1.0
1.0
5.7
6.2
6.6
6.9
7.6
63.6
58.0
54.8
52.4
49.6
1N4698UR
1N4699UR
1N4700UR
1N4701UR
1N4702UR
MLL4698
MLL4699
MLL4700
MLL4701
MLL4702
11.0
12.0
13.0
14.0
15.0
50
50
50
50
50
0.11
0.12
0.13
0.14
0.15
0.05
0.05
0.05
0.05
0.05
8.4
9.1
9.8
10.6
11.4
43.2
40.8
38.0
35.0
32.6
1N4703UR
1N4704UR
1N4705UR
1N4706UR
1N4707UR
MLL4703
MLL4704
MLL4705
MLL4706
MLL4707
16.0
17.0
18.0
19.0
20.0
50
50
50
50
50
0.16
0.17
0.18
0.19
0.20
0.05
0.05
0.05
0.05
0.01
12.1
12.9
13.6
14.4
15.2
30.8
29.0
26.4
25.0
23.8
1N4708UR
1N4709UR
1N4710UR
1N4711UR
1N4712UR
MLL4708
MLL4709
MLL4710
MLL4711
MLL4712
22.0
24.0
25.0
27.0
28.0
50
50
50
50
50
0.22
0.24
0.25
0.27
0.28
0.01
0.01
0.01
0.01
0.01
16.7
18.2
19.0
20.4
21.2
21.6
19.8
19.0
17.6
17.0
1N4713UR
1N4714UR
1N4715UR
1N4716UR
1N4717UR
MLL4713
MLL4714
MLL4715
MLL4716
MLL4717
30.0
33.0
36.0
39.0
43.0
50
50
50
50
50
0.30
0.33
0.36
0.39
0.43
0.01
0.01
0.01
0.01
0.01
22.8
25.0
27.3
29.6
32.6
15.8
14.4
13.2
12.2
11.0
*JEDEC registered data except IZM has been increased (doubled) for 500 mW power dissipation capabilities
NOTES: 1. These may be ordered as either 1N4678UR through 1N4717UR, or as the MLL4678 through MLL4717.
2. All types as shown are +/-5% tolerance. Also available in 2% and 1% tolerance with added suffix C and D respectively.
3. ∆VZ @ 100µA minus VZ @ 10µA.
The electrical characteristics are measured after allowing the device to stabilize for 20 seconds when mounted with 3/8” minimum lead length from
the base.
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
Copyright 2002
3-12-04 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
Copyright 2002
3-12-04 REV A
WWW.Microsemi .COM
SCOTTSDALE DIVISION
1N4678UR thru 1N4717UR
(or MLL4678 thru MLL4717)
1N4099UR–1N4135UR
1N4614UR – 1N4627UR
GRAPHS
Pd Rated Power Dissipation (mW)
TEC
TA
TEC, End Cap Temperature (oC) or TA
Ambient temperature on FR4 PC board
FIGURE 1 Power Derating Curve
Zener Voltage VZ
Capacitance vs. VZ Curve
Typical Capacitance in Picofarads (pf)
FIGURE 2 Capacitance vs. Zener Voltage (Typical)
PACKAGE DIMENSIONS
INCHES MILLIMETERS
DIM MIN MAX MIN MAX
A 0.063 0.067 1.60 1.70
B 0.130 0.146 3.30 3.70
C 0.016 0.022 0.41 0.55 PAD LAYOUT
INCHES mm
A .200 5.08
B .055 1.40
C .080 2.03
