1N4678UR-1 thru 1N4717UR-1
Screening in
reference to
MIL-PRF-19500
available
Available on
commercial
versions
500 mW SURFACE MOUNT ZENER DIODES
DESCRIPTION
The 1N4678UR-1 thru 1N4717UR-1 series of 0.5 watt glass surface mount DO-213AA Zener
voltage regulators provides a selection from 1.8 to 43 volts. Standard tolerance is +/-5%, with
1% and 2% options available. The Zener test current is only 50 uA. The metal slugs that
sandwich the die are metallurgically bonded to the silicon for high reliability. This type of
internally bonded Zener package construction is also available with high-reliability up-
screening as described in the Features section. Microsemi also offers numerous other Zener
products to meet higher and lower power applications.
DO-213AA Package
Important:
For the latest information, visit our website
http://www.microsemi.com.
FEATURES
•
•
•
•
•
•
Surface mount equivalent of JEDEC registered 1N4678 thru 1N4717 series.
Internal metallurgical bond.
Hermetically sealed surface mount package.
Tighter voltage tolerances of 2% and 1% are available.
Up-screening available in reference to MIL-PRF-19500.
(See
part nomenclature
for all available options.)
RoHS compliant devices available (commercial grade only).
Also available in:
DO-35 (DO-204AH)
(surface mount)
1N4678-1 – 1N4717-1
APPLICATIONS / BENEFITS
•
•
•
•
•
Regulates voltage over a broad operating current and temperature range.
Voltage selection from 1.8 to 43 V.
Non-sensitive to ESD per MIL-STD-750 method 1020.
Minimal capacitance (see
Figure 2).
Inherently radiation hard as described in Microsemi’s “MicroNote
050”.
MAXIMUM RATINGS
Parameters/Test Conditions
Junction and Storage Temperature
(1)
Thermal Resistance Junction-to-End Cap
(1)
Thermal Resistance Junction-to-Ambient
(2)
Steady-State Power Dissipation
Forward Voltage @ 100 mA
Solder Temperature @ 10 s
Symbol
T
J
and T
STG
R
ӨJL
R
ӨJA
P
D
V
F
T
SP
Value
-65 to +175
100
250
0.5
1.5
260
Unit
C
o
C/W
o
C/W
W
V
o
C
o
MSC – Lawrence
6 Lake Street,
Lawrence, MA 01841
Tel: 1-800-446-1158 or
(978) 620-2600
Fax: (978) 689-0803
MSC – Ireland
Gort Road Business Park,
Ennis, Co. Clare, Ireland
Tel: +353 (0) 65 6840044
Fax: +353 (0) 65 6822298
Website:
www.microsemi.com
Notes:
1. When mounted on FR4 PC board (1 oz Cu) with recommended footprint (see last page).
2. At T
EC
< 125
o
C or at ambient T
A
< 50
º
C when mounted on FR4 PC board.
T4-LDS-0240-1, Rev. 2 (120722)
©2012 Microsemi Corporation
Page 1 of 5
1N4678UR-1 thru 1N4717UR-1
MECHANICAL and PACKAGING
•
•
•
•
•
•
•
CASE: Hermetically sealed glass DO-213AA (SOD80 or MLL34) MELF style package.
TERMINALS: End caps available with tin-lead plating or RoHS compliant matte-tin plating (commercial version only). 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: The cathode is the banded end of the device.
TAPE & REEL option: Standard per EIA-481-1-B (add “TR” suffix to part number). Consult factory for quantities.
WEIGHT: 0.04 grams.
See
Package Dimensions
on last page.
PART NOMENCLATURE
MQ 1N4678 C UR -1 (e3)
Reliability Level
MQ (reference JAN)
MX reference JANTX
MV (reference JANTXV)
MSP (reference JANS)
Blank = Commercial
JEDEC type number
(see
Electrical Characteristics
table)
RoHS Compliance
e3 = RoHS Compliant (available
on commercial grade only)
Blank = non-RoHS Compliant
Metallurgically Bonded
Surface Mount package
Zener Voltage Tolerances
Blank = 5%
C = 2%
D = 1%
Symbol
I
ZT
or I
ZK
I
R
I
ZM
T
SP
V
R
V
Z
SYMBOLS & DEFINITIONS
Definition
Regulator Current: The dc regulator current (I
Z
), at a specified test point (I
ZT
), near breakdown knee (I
ZK
).
Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature.
Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating.
Temperature Solder Pad: The maximum solder temperature that can be safely applied to the terminal.
Reverse Voltage: The reverse voltage dc value, no alternating component.
Zener Voltage: The Zener voltage the device will exhibit at a specified current (I
Z
) in its breakdown region.
T4-LDS-0240-1, Rev. 2 (120722)
©2012 Microsemi Corporation
Page 2 of 5
1N4678UR-1 thru 1N4717UR-1
ELECTRICAL CHARACTERISTICS
@ 25 C unless otherwise noted.
NOMINAL
ZENER
VOLTAGE
(Note 3)
V
Z
ZENER TEST
CURRENT
MAXIMUM
MAXIMUM REVERSE
MAXIMUM dc
VOLTAGE
LEAKAGE CURRENT
ZENER
REGULATION
CURRENT*
(Note 2 & 3)
I
ZT
I
R
@ V
R
I
ZM
∆V
Z
µA
µA
Volts
Volts
mA
50
0.70
7.5
1.0
240
50
0.70
5.0
1.0
220
50
0.75
4.0
1.0
200
50
0.80
2.0
1.0
190
50
0.85
1.0
1.0
180
50
0.90
0.8
1.0
170
50
0.95
7.5
1.5
160
50
0.95
7.5
2.0
150
50
0.97
5.0
2.0
140
50
0.99
4.0
2.0
130
50
0.99
10.0
3.0
120
50
0.97
10.0
3.0
110
50
0.96
10.0
4.0
100
50
0.95
10.0
5.0
90
50
0.90
10.0
5.1
70
50
0.75
10.0
5.7
63.6
50
0.50
1.0
6.2
58.0
50
0.10
1.0
6.6
54.8
50
0.08
1.0
6.9
52.4
50
0.10
1.0
7.6
49.6
50
0.11
0.05
8.4
43.2
50
0.12
0.05
9.1
40.8
50
0.13
0.05
9.8
38.0
50
0.14
0.05
10.6
35.0
50
0.15
0.05
11.4
32.6
50
0.16
0.05
12.1
30.8
50
0.17
0.05
12.9
29.0
50
0.18
0.05
13.6
26.4
50
0.19
0.05
14.4
25.0
50
0.20
0.01
15.2
23.8
50
0.22
0.01
16.7
21.6
50
0.24
0.01
18.2
19.8
50
0.25
0.01
19.0
19.0
50
0.27
0.01
20.4
17.6
50
0.28
0.01
21.2
17.0
50
0.30
0.01
22.8
15.8
50
0.33
0.01
25.0
14.4
50
0.36
0.01
27.3
13.2
50
0.39
0.01
29.6
12.2
50
0.43
0.01
32.6
11.0
has been increased (doubled) for 500 mW power dissipation capabilities.
o
JEDEC TYPE
NUMBER
(Note 1)
Volts
1N4678UR-1
1.8
1N4679UR-1
2.0
1N4680UR-1
2.2
1N4681UR-1
2.4
1N4682UR-1
2.7
1N4683UR-1
3.0
1N4684UR-1
3.3
1N4685UR-1
3.6
1N4686UR-1
3.9
1N4687UR-1
4.3
1N4688UR-1
4.7
1N4689UR-1
5.1
1N4690UR-1
5.6
1N4691UR-1
6.2
1N4692UR-1
6.8
1N4693UR-1
7.5
1N4694UR-1
8.2
1N4695UR-1
8.7
1N4696UR-1
9.1
1N4697UR-1
10.0
1N4698UR-1
11.0
1N4699UR-1
12.0
1N4700UR-1
13.0
1N4701UR-1
14.0
1N4702UR-1
15.0
1N4703UR-1
16.0
1N4704UR-1
17.0
1N4705UR-1
18.0
1N4706UR-1
19.0
1N4707UR-1
20.0
1N4708UR-1
22.0
1N4709UR-1
24.0
1N4710UR-1
25.0
1N4711UR-1
27.0
1N4712UR-1
28.0
1N4713UR-1
30.0
1N4714UR-1
33.0
1N4715UR-1
36.0
1N4716UR-1
39.0
1N4717UR-1
43.0
*JEDEC registered data except that I
ZM
NOTES:
1.
2.
3.
All types as shown are +/-5% tolerance. Also available in 2% and 1% tolerance.
∆
V
Z
@ 100
µA
minus
V
Z
@ 10
µA.
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.
T4-LDS-0240-1, Rev. 2 (120722)
©2012 Microsemi Corporation
Page 3 of 5
1N4678UR-1 thru 1N4717UR-1
GRAPHS
P
D
RATED POWER DISSIPATION - mW
T
EC
T
A
T
EC
– END CAP TEMPERATURE (
o
C) or
T
A
on FR4 PC BOARD
FIGURE 1
POWER DERATING CURVE
TYPICAL CAPACITANCE IN PICOFARADS (Pf)
At zero volts
At –2 volts (V
R
)
ZENER VOLTAGE V
Z
FIGURE 2
CAPACITANCE vs. ZENER VOLTAGE (TYPICAL)
T4-LDS-0240-1, Rev. 2 (120722)
©2012 Microsemi Corporation
Page 4 of 5
1N4678UR-1 thru 1N4717UR-1
PACKAGE DIMENSIONS
DIM
A
B
C
INCH
MIN
MAX
0.063
0.067
0.130
0.146
0.016
0.022
MILLIMETERS
MIN
MAX
1.60
1.70
3.30
3.70
0.41
0.55
PAD LAYOUT
A
B
C
inch
.200
.055
.080
mm
5.08
1.40
2.03
T4-LDS-0240-1, Rev. 2 (120722)
©2012 Microsemi Corporation
Page 5 of 5
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