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* 1N941B, 1N943B, 1N944B AND 1N945B AVAILABLE IN JAN, JANTX PER MIL-PRF-19500/157 PER MIL-PRF-19500/157 * 11.7 VOLT NOMINAL ZENER VOLTAGE
AND JANTXV
1N941 thru 1N945B and 1N941B-1 thru 1N945B-1
* 1N941B-1, 1N943B-1, 1N944B-1 AND 1N945B-1 AVAILABLE IN JAN, JANTX, JANTXV AND JANS
* TEMPERATURE COMPENSATED ZENER REFERENCE DIODES * METALLURGICALLY BONDED
MAXIMUM RATINGS
Operating Temperature: -65C to +175C Storage Temperature: -65C to +175C DC Power Dissipation: 500mW @ +50C Power Derating: 4 mW / C above +50C
REVERSE LEAKAGE CURRENT
lR = 15 A @ 25C & VR = 8 Vdc
ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise speci1/2ed.
JEDEC TYPE NUMBER
ZENER VOLTAGE vz @ I ZT
ZENER TEST CURRENT I ZT
MAXIMUM VOLTAGE TEMPERATURE EFFECTIVE ZENER TEMPERATURE RANGE TEMPERATURE IMPEDANCE STABILITY COEFFICIENT ZZT V ZT MAXIMUM (Note 1) (Note 2) mV 88 181 239 44 90 120 18 36 47 9 18 24 4 9 12 C 0 to + 75 -55 to +100 -55 to +150 0 to + 75 -55 to +100 -55 to +150 0 to + 75 -55 to +100 -55 to +150 0 to + 75 -55 to +100 -55 to +150 0 to + 75 -55 to +150 -55 to +150 % / C 0.01 0.01 0.01 0.005 0.005 0.005 0.002 0.002 0.002 0.001 0.001 0.001 0.0005 0.0005 0.0005
VOLTS 1N941 1N941A 1N941B 1N942 1N942A 1N942B 1N943 1N943A 1N943B 1N944 1N944A 1N944B 1N945 1N945A 1N945B 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12--12.28 11.12 -12.28
mA 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5
OHMS 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30
FIGURE 1
DESIGN DATA
CASE: Hermetically sealed glass case. DO - 35 outline. LEAD MATERIAL: Copper clad steel. LEAD FINISH: Tin / Lead POLARITY: Diode to be operated with the banded (cathode) end positive. MOUNTING POSITION: Any.
NOTE 1 Zener impedance is derived by superimposing on lZT A 60Hz rms a.c. current equal to 10% of lZT. NOTE 2 The maximum allowable change observed over the entire temperature range i.e., the diode voltage will not exceed the speci1/2ed mV at any discrete temperature between the established limits, per JEDEC standard No.5.
6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841 PHONE (978) 620-2600 FAX (978) 689-0803 WEBSITE: http://www.microsemi.com
21
Pd, Rated Power Dissipation (mW)
thru 1N945B INCLUDING -1 VERSIONS
1N941
600 500 400 300 200 100 0 0 25 50 75 100 125 150 175
TL, Lead temperature (C) 3/8" from body FIGURE 2
POWER DERATING CURVE
CHANGE IN TEMPERATURE COEFFICIENT (% / C)
+.0010 +.0005 0 -.0005 -.0010
5.5
6.0
6.5 7.0 7.5 8.0 8.5 9.0 OPERATING CURRENT lZT (mA)
9.5
FIGURE 3
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT WITH CHANGE IN OPERATING CURRENT
100
50
ZENER IMPEDANCE ZZT (OHMS)
20
10
5
2
1 5 6 7 8 9 OPERATING CURRENT lZT (mA) 10
FIGURE 4
ZENER IMPEDANCE VS. OPERATING CURRENT 22
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