1N2804B – 1N2846RB and
1N4557B – 1N4564RB
Qualified Levels:
JAN, JANTX, and
JANTXV
Available on
commercial
versions
50 Watt Zener Diodes
Qualified per MIL-PRF-19500/114
DESCRIPTION
This series of high power 50W Zener diodes, JEDEC registered 1N2804B through 1N2846B
and 1N4557B through 1N4564B, provide voltage regulation in values from 3.9 V to 200 V
broad range of voltages. They may be operated up to 50 W with adequate mounting and heat
sinking due to their low thermal resistance. These Zeners are also available in reverse polarity.
On select part numbers, these Zeners are also available in JAN, JANTX, and JANTXV military
qualifications.
Important:
For the latest information, visit our website
http://www.microsemi.com.
TO-204AD (TO-3)
Package
FEATURES
•
•
•
•
•
JEDEC registered IN2804 through 1N2846B and 1N4557 through 1N4564B numbers.
Internal solder bond construction.
Hermetically sealed (welded).
Zener voltage 3.9 V to 200 V.
JAN, JANTX, and JANTXV qualifications also available per MIL-PRF-19500/114 on most family
members (see
Electrical Characteristics
table).
(See
Part Nomenclature
for all available options).
Standard polarity is anode to case. Reverse polarity is available.
RoHS compliant versions available (commercial grade only).
•
•
APPLICATIONS / BENEFITS
•
•
•
•
Regulates voltage over a broad range of operating current and temperature.
Voltage tolerances of 10%, 5%, 2%, and 1% are available.
Non-sensitive to ESD per MIL-STD-750 method 1020.
Inherently radiation hard as described in Microsemi
MicroNote 050.
MAXIMUM RATINGS
Parameters/Test Conditions
Junction Temperature
Storage Temperature
Thermal Resistance Junction to Case @ T
C
= 30 ºC ±3 ºC
Average Rated Power Dissipation @ T
C
≥ 75 ºC
Power Derating @ T
C
≥ +75 ºC
Forward Voltage @ I
F
= 10A
Solder Temperature @ 10 s max
Symbol
T
J
T
STG
R
ӨJC
P
M(AV)
V
F
T
SP
Value
-65 to +175
-65 to +200
2.0
50
0.5
1.5
260
Unit
ºC
ºC
ºC/W
W
W/ºC
V
o
C
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
T4-LDS-0076, Rev. 3 (5/2/13)
©2013 Microsemi Corporation
Page 1 of 7
1N2804B – 1N2846RB and
1N4557B – 1N4564RB
MECHANICAL and PACKAGING
•
•
•
•
•
•
CASE: Industry standard TO-3 (TO-204AD), hermetically sealed, 0.052 inch diameter pins.
FINISH: Solder dipped tin-lead over nickel plated alloy 52. Solderable per MIL-STD-750 method 2026. RoHS compliant matte-
tin plating is also available on commercial grade only.
POLARITY: Standard polarity units are connected anode to case. Reverse polarity (cathode to case) is indicated by suffix R. In
either example, both pins are common with one another as anode or cathode (see
Figure 2).
WEIGHT: Approximately 15 grams.
MOUNTING HARDWARE: Consult factory for optional insulator and sheet metal screws.
See
Package Dimensions
on last page.
PART NOMENCLATURE
JAN
Reliability Level*
JAN = JAN Level
JANTX = JANTX Level
JANTXV = JANTXV Level
Blank = Commercial
*(on select part numbers)
1N2804
R
B
e3
RoHS Compliance
e3 = RoHS Compliant (available
on commercial grade only)
Blank = non-RoHS Compliant
Zener Voltage Tolerance
A = 10%
B = 5%
C = 2%
D = 1%
JEDEC type number
(see
Electrical
Characteristics
table)
Polarity
R = reverse polarity
(Cathode to Case)
Blank = standard polarity
(Anode to Case)
Symbol
I
R
I
Z
, I
ZT
, I
ZK
I
ZM
V
R
V
F
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.
Reverse Voltage: The reverse voltage dc value, no alternating component.
Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current.
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.
T4-LDS-0076, Rev. 3 (5/2/13)
©2013 Microsemi Corporation
Page 2 of 7
1N2804B – 1N2846RB and
1N4557B – 1N4564RB
* ELECTRICAL CHARACTERISTICS
@ T
C
= 30°C ±3°C unless otherwise noted
JEDEC
TYPE
NUMBER
(Note 1)
NOMINAL
ZENER
VOLTAGE
V
Z
@ I
ZT
ZENER
TEST
CURRENT
(I
ZT
)
MAXIMUM DYNAMIC
IMPEDANCE
(NOTE 2)
Z
ZT
@ I
ZT
MAX DC ZENER
CURRENT
(I
ZM
) @ 75°C
Stud Temp.
(Note 3)
TYPICAL
TEMPERATURE
COEFFICIENT
α
VZ
MAX**
REVERSE
CURRENT
I
R
@ V
R
µA
150
150
100
20
20
20
10
10
150
100
50
25
25
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
Volts
0.5
0.5
1.0
1.0
1.0
2.0
2.0
3.0
4.5
5.0
5.4
6.1
6.7
8.4
9.1
9.9
10.6
11.4
12.2
13.0
13.7
14.4
15.2
16.7
18.2
19.0
20.6
22.8
25.1
27.4
29.7
32.7
34.2
35.8
38.0
38.8
42.6
47.1
51.7
56.0
62.2
69.2
76.0
79.8
83.6
91.2
98.8
114.0
121.6
136.8
152.0
Volts
†1N4557B
3.9
†1N4558B
4.3
†1N4559B
4.7
†1N4560B
5.1
†1N4561B
5.6
†1N4562B
6.2
1N4563B
6.8
1N4564B
7.5
†1N2804B
6.8
†1N2805B
7.5
†1N2806B
8.2
†1N2807B
9.1
†1N2808B
10
†1N2809B
11
†1N2810B
12
†1N2811B
13
1N2812B
14
†1N2813B
15
†1N2814B
16
1N2815B
17
†1N2816B
18
1N2817B
19
†1N2818B
20
†1N2819B
22
†1N2820B
24
1N2821B
25
†1N2822B
27
†1N2823B
30
†1N2824B
33
†1N2825B
36
†1N2826B
39
†1N2827B
43
1N2828B
45
†1N2829B
47
1N2830B
50
†1N2831B
51
†1N2832B
56
†1N2833B
62
†1N2834B
68
†1N2835B
75
†1N2836B
82
†1N2837B
91
†1N2838B
100
1N2839B
105
†1N2840B
110
†1N2841B
120
†1N2842B
130
†1N2843B
150
†1N2844B
160
†1N2845B
180
†1N2846B
200
* JEDEC Registered Data.
Z
ZK
@ 1 mA
(I
ZK
)
mA
Ohms
Ohms
mA
% / ºC
3200
0.16
400
10,000
-0.050
2900
0.16
500
9,000
-0.035
2650
0.12
600
8,000
±0.015
2450
0.12
650
7,500
0.035
2250
0.12
900
7,000
0.050
2000
0.14
1000
6,500
0.055
1850
0.16
200
6,650
0.053
1650
0.24
100
6,050
0.057
1850
0.2
70
7,000
0.057
1700
0.3
70
6,360
0.067
1500
0.4
70
5,800
0.070
1370
0.5
70
5,240
0.075
1200
0.6
80
4,760
0.081
1100
0.8
80
4,330
0.085
1000
1.0
80
3,970
0.079
960
1.1
80
3,750
0.080
890
1.2
80
3,400
0.070
830
1.4
80
3,170
0.082
780
1.6
80
2,970
0.083
740
1.8
80
2,750
0.075
700
2.0
80
2,640
0.085
660
2.2
80
2,450
0.075
630
2.4
80
2,380
0.086
570
2.5
80
2,160
0.087
520
2.6
80
1,980
0.088
500
2.7
80
1,850
0.080
460
2.8
90
1,760
0.090
420
3.0
90
1,590
0.091
380
3.2
90
1,440
0.092
350
3.5
90
1,320
0.093
320
4.0
90
1,220
0.094
290
4.5
90
1,000
0.095
280
4.5
100
1,030
0.090
270
5.0
100
1,020
0.095
250
5.0
100
935
0.090
245
5.2
100
930
0.096
220
6
110
850
0.096
200
7
120
770
0.097
180
8
140
700
0.097
170
9
150
640
0.098
150
11
160
580
0.098
140
15
180
530
0.099
120
20
200
480
0.100
120
25
210
430
0.090
110
30
220
430
0.100
100
40
240
400
0.100
95
50
275
370
0.100
85
75
400
320
0.100
80
80
450
300
0.100
68
90
525
260
0.100
65
100
600
240
0.100
**Not JEDEC Data. † Have JAN, JANTX and JANTXV Qualifications to MIL-PRF-19500/114
See notes on following page.
T4-LDS-0076, Rev. 3 (5/2/13)
©2013 Microsemi Corporation
Page 3 of 7
1N2804B – 1N2846RB and
1N4557B – 1N4564RB
NOTES:
1.
2.
The JEDEC type numbers shown (B suffix) have a +/- 5 % tolerance on nominal Zener voltage.
Zener voltage (V
Z
) is measured with junction in thermal equilibrium with 30 °C base temperature. The test currents (I
ZT
) have
been selected so that at nominal voltages the dissipation is a constant 12.5 watts. This results in a nominal junction
temperature rise of 18.75 °C.
The Zener impedance is derived from the 60 cycle ac voltage, which results when an ac current having an rms value equal to
10% of the dc Zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener impedance is measured at 2 points to ensure a
sharp knee on the breakdown curve and to eliminate unstable units. A curve showing the variation of Zener impedance vs.
Zener current for six representative types is shown in
Figure 3.
Also see
MicroNote 202
for further information.
Zener voltage above V
ZT
that results from Zener impedance and the increase in junction temperature as power dissipation
approaches 50 watts. In the case of individual diodes, I
ZM
is that value of current that results in a dissipation of 50 watts.
3.
4.
The values of I
ZM
are calculated for a +/- 5 % tolerance on nominal Zener voltage. Allowance has been made for the rise in
T4-LDS-0076, Rev. 3 (5/2/13)
©2013 Microsemi Corporation
Page 4 of 7
1N2804B – 1N2846RB and
1N4557B – 1N4564RB
GRAPHS
Rated Power Dissipation - Watts
Case Temperature ºC
FIGURE 1
Power Derating Curve
Standard polarity (Anode-to-case)
Reverse polarity (cathode to case)
FIGURE 2
Typical circuit connections for anode-to-case and cathode-to-case polarities
T4-LDS-0076, Rev. 3 (5/2/13)
©2013 Microsemi Corporation
Page 5 of 7
