TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822 298
Website: http: //www.microsemi.com
ZENER – TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
– 9.0 VOLT NOMINAL ZENER VOLTAGE
– METALLURGICALLY BONDED
Qualified per MIL-PRF-19500/156
LDS-0155 Rev. 1 (100346) Page 1 of 3
DEVICES LEVELS
1N935 thru 1N938B JAN
1N935B-1 thru 1N938B-1 JANTX
JANTXV
JANS
MAXIMUM RATING AT 25°C
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500mW @ +50°C
Power Derating: 4mW / °C above +50°C
REVERSE LEAKAGE CURRENT
IR = 10μA @ 25°C & VR = 6Vdc
ELECTRICAL CHARACTERISTICS (TA = 25°C, unless otherwise specified)
MIL-PRF-
19500/156
JEDEC
TYPE
NUMBER
ZENER
VOLTAGE
VZ @ IZT
ZENER
TEST
CURRENT
IZT
MAXIMUM
ZENER
IMPEDACE
(Note 1)
ZZT
VOLTAGE
TEMPERATURE
STABILITY
3V ZT MAXIMUM
(Note 2)
TEMPERATURE
RANGE
EFFECTIVE
TEMPERATURE
COEFFICIENT
VOLTS mA OHMS mV °C % / °C
1N935B-1
1N935
1N935A
1N935B
8.55 – 9.45
8.55 – 9.45
8.55 – 9.45
7.5
7.5
7.5
20
20
20
67
139
184
0 to + 75
-55 to +100
-55 to +150
0.01
0.01
0.01
1N936B-1
1N936
1N936A
1N936B
8.55 – 9.45
8.55 – 9.45
8.55 – 9.45
7.5
7.5
7.5
20
20
20
34
70
92
0 to + 75
-55 to +100
-55 to +150
0.005
0.005
0.005
1N937B-1
1N937
1N937A
1N937B
8.55 – 9.45
8.55 – 9.45
8.55 – 9.45
7.5
7.5
7.5
20
20
20
13
28
37
0 to + 75
-55 to +100
-55 to +150
0.002
0.002
0.002
1N938B-1
1N938
1N938A
1N938B
8.55 – 9.45
8.55 – 9.45
8.55 – 9.45
7.5
7.5
7.5
20
20
20
6.7
13.9
19
0 to + 75
-55 to +100
-55 to +150
0.001
0.001
0.001
NOTE 1: Zener impedance is derived by superimposing on IZT A 60Hz rms a.c. current equal to 10% of IZT
NOTE 2: The maximum allowable change observed over the entire temperature range i.e., the diode voltage
will not exceed the specified mV at any discrete temperature between the established limits, per JEDEC
standard No. 5.
DO-35
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822 298
Website: http: //www.microsemi.com
LDS-0155 Rev. 1 (100346) Page 2 of 3
GRAPHS
FIGURE 1
TL, Lead temperature (C°) 3/8“ from body
POWER DERATING CURVE
FIGURE 2
ZENER IMPEDANCE VS. OPERATING CURRENT
FIGURE 3
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822 298
Website: http: //www.microsemi.com
LDS-0155 Rev. 1 (100346) Page 3 of 3
PACKAGE DIMENSIONS
NOTE: Dimensions
1. Dimensions are in inches. Symbol Inches Millimeters Notes
2. Millimeters are given for general information only. Min Max Min Max
3. Package contour optional within BD and length BL. Heat slugs, if BD .060 .107 1.52 2.72 3
any, shall be included within this cylinder but shall not be subject to BL .120 .300 3.05 7.62 3
minimum limit of BD. LD .018 .023 0.46 0.58
4. Within this zone, lead diameter may vary to allow for lead finishes LL 1.000 1.500 25.40 38.10
and irregularities, other than heat slugs. LL1 0.050 1.27 4
5. In accordance with ASME Y14.5M, diameters are equivalent to Φx
symbology.
FIGURE 1. Physical dimensions 1N935B-1, 1N937B-1 through 1N940B-1 (DO-7 and DO-35).
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 postive.
Mounting Position: Any.
