1N4896(A) – 1N4915(A)
Available
12.8 Volt LOW NOISE TEMPERATURE
COMPENSATED ZENER REFERENCE DIODES
DESCRIPTION
The 1N4896(A) through 1N4915(A) series provides a selection of temperature compensated
12.8 V (nominal) Zener diodes. The voltage tolerace is +/- 5% and the "A" version of the parts
o
in this series have an expanded low temperature range down to -55 C. Microsemi also offers
numerous other Zener reference diode products for a variety of other voltages.
Important:
For the latest information, visit our website
http://www.microsemi.com.
FEATURES
•
•
•
•
•
•
JEDEC registered 1N4896 thru 1N4915 series.
12.8 volt nominal Zener voltage +/- 5%.
o
o
Temperature Coefficient range: 0.01 %/ C to 0.001%/ C.
Metallurgically bonded.
Double plug construction.
RoHS compliant versions available.
DO-35
(DO-204AH)
Package
APPLICATIONS / BENEFITS
•
•
•
•
•
Provides minimal voltage changes over a broad temperature range.
For instrumentation and other circuit designs requiring a stable voltage reference.
Low noise.
Flexible axial-lead mounting terminals.
Non-sensitive to ESD per MIL-STD-750 method 1020.
MAXIMUM RATINGS
Parameters/Test Conditions
Junction and Storage Temperature
Thermal Resistance, Junction to Lead @ 0.375 inches
from body
o (1)
Off-State Power Dissipation @ T
A
= +50 C
Maximum Reverse Current @ 25 ºC and V
R
= 8 V
Solder Temperature @ 10 s
Notes:
1. Derate at 4 mW/ C above T
A
= +50 C.
o
o
Symbol
T
J
and T
STG
R
ӨJL
P
D
I
RM
T
SP
Value
-65 to +175
300
500
15
260
Unit
C
ºC/W
mW
µA
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
LDS-0272, Rev. 1 (121054)
©2012 Microsemi Corporation
Page 1 of 6
1N4896(A) – 1N4915(A)
MECHANICAL and PACKAGING
•
•
•
•
•
•
•
CASE: Hermetically sealed glass case with axial DO-35 (DO-204AH) package.
TERMINALS: Tin-lead plated or RoHS compliant matte-tin plating available and solderable per MIL-STD-750, method 2026.
MARKING: Part number and cathode band.
POLARITY: Reference diode to be operated with the banded end positive with respect to the opposite end.
TAPE & REEL option: Standard per EIA-296. Consult factory for quantities. (Add “TR” suffix to part number.)
WEIGHT: 0.2 grams.
See
Package Dimensions
on the last page.
PART NOMENCLATURE
1N941
JEDEC type number
(See
Electrical Characteristics
table)
Temperature Coefficient
range:
o
o
A = -55 C to +100 C
o
o
Blank = +25 C to +100 C
A
(e3)
RoHS Compliance
e3 = RoHS compliant
Blank = non-RoHS compliant
Symbol
I
R
I
Z
, I
ZT
, I
ZK
I
ZM
V
Z
Z
ZT
or Z
ZK
SYMBOLS & DEFINITIONS
Definition
Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature.
Regulator Current: The dc regulator current (I
Z
), at a specified test point (I
ZT
), near breakdown knee (I
ZK
).
Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating.
Zener Voltage: The Zener voltage the device will exhibit at a specified current (I
Z
) in its breakdown region.
Dynamic Impedance: The small signal impedance of the diode when biased to operate in its breakdown region at a
specified rms current modulation (typically 10% of I
ZT
or I
ZK
) and superimposed on I
ZT
or I
ZK
respectively.
LDS-0272, Rev. 1 (121054)
©2012 Microsemi Corporation
Page 2 of 6
1N4896(A) – 1N4915(A)
ELECTRICAL CHARACTERISTICS
@ 25 C unless otherwise specified.
TEST
CURRENT
MAX. VOLTAGE
CHANGE WITH
TEMPERATURE
∆V
Z
(Note 2 & 5)
Volts
0.096
0.198
0.048
0.099
0.019
0.040
0.010
0.020
0.096
0.198
0.048
0.099
0.019
0.040
0.010
0.020
0.096
0.198
0.048
0.099
0.019
0.040
0.010
0.020
0.096
0.198
0.048
0.099
0.019
0.040
0.010
0.020
0.096
0.198
0.048
0.099
0.019
0.040
0.010
0.020
TEMPERATURE
RANGE
EFFECTIVE
TEMPERATURE
COEFFICIENT
α
VZ
(Note 3)
+/-%/
o
C
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
MAXIMUM
DYNAMIC
IMPEDANCE
Z
ZT
(Note 4)
Ohms
400
400
400
400
400
400
400
400
200
200
200
200
200
200
200
200
100
100
100
100
100
100
100
100
50
50
50
50
50
50
50
50
25
25
25
25
25
25
25
25
MAXIMUM
NOISE
DENSITY
N
D
uV√cps
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
o
JEDEC
TYPE
NUMBER
1N4896
1N4896A
1N4897
1N4897A
1N4898
1N4898A
1N4899
1N4899A
1N4900
1N4900A
1N4901
1N4901A
1N4902
1N4902A
1N4903
1N4903A
1N4904
1N4904A
1N4905
1N4905A
1N4906
1N4906A
1N4907
1N4907A
1N4908
1N4908A
1N4909
1N4909A
1N4910
1N4910A
1N4911
1N4911A
1N4912
1N4912A
1N4913
1N4913A
1N4914
1N4914A
1N4915
1N4915A
I
ZT
(Note 1 & 5)
mA
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
C
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
+25 to +100
-55 to +100
o
*JEDEC Registered Data.
NOTES:
1.
2.
3.
4.
5.
6.
Nominal voltage for all types is 12.8 Volts +/-5%.
Referred to as the “box” measurement method, the
∆V
Z
is the maximum voltage variance that will occur as the voltage is
scanned thru all temperatures between the temperature range limits.
o
The effective temperature coefficients are tabulated in %/ C primarily for information only since temperature compensated
diodes inherently have a non-linear voltage-temperature characteristic.
The dynamic Zener impedance Z
ZT
is derived from the resulting AC voltage developed when a 60 cps, rms AC current equal
to 10% of the DC Zener current I
ZT
is superimposed on I
ZT
.
Voltage measurements to be performed 15 seconds after application of DC current.
Consult factory for JANTX, JANTXV or JANS equivalent SCDs.
LDS-0272, Rev. 1 (121054)
©2012 Microsemi Corporation
Page 3 of 6
1N4896(A) – 1N4915(A)
GRAPHS
ZENER Impedance Z
ZT
(Ohms)
Operating Current I
ZT
(mA)
FIGURE 1
Zener Impedance vs. Operating Current
(1N4896 thru 1N4915A)
Change in Temperature Coefficient %/°C
Operating Current I
ZT
(mA)
Operating Current I
ZT
(mA)
Operating Current I
ZT
(mA)
FIGURE 2
Typical Change of Temperature Coefficient with Change in Operating Current
LDS-0272, Rev. 1 (121054)
©2012 Microsemi Corporation
Page 4 of 6
1N4896(A) – 1N4915(A)
GRAPHS
(continued)
Change in Temperature Coefficient %/°C
Operating Current I
ZT
(mA)
Operating Current I
ZT
(mA)
FIGURE 2 (continued)
Typical Change of Temperature Coefficient with Change in Operating Current
Noise density, (N
D
) is specified in microvolt-rms per squre-
root-hertz. Actual measurement is performed using a 1 KHz
to 3 KHz frequency bandpass filter at a constant Zener test
o
current (I
ZT
) AT 25 C ambient temperature. N
D
is calculated
from the formula.
Rated Power Dissipation - mW
T
L
Lead temperature (°C) 3/8” from body
FIGURE 3
Noise Density Measurement Circuit
FIGURE 4
Power Derating Curve
LDS-0272, Rev. 1 (121054)
©2012 Microsemi Corporation
Page 5 of 6
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