22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071 FAX (781) 665-7379
WEBSITE: http://www.cdi-diodes.com E-mail: mail@cdi-diodes.com
• 50
µ
A, LOW OPERATING CURRENT, ZENER DIODES
• DOUBLE PLUG CONSTRUCTION
• METALLURGICALLY BONDED
1N4678
thru
1N4717
CDI NOMINAL ZENER MAXIMUM MAXIMUM REVERSE MAXIMUM
TYPE ZENER TEST VOLTAGE LEAKAGE DC ZENER
NUMBER VOLTAGE CURRENT REGULATION CURRENT CURRENT
VZlZT ∆VZlR@ VRlZM
(Note 1) (Note 2)
VOLTS
µ
A VOLTS
µ
A VOLTS mA
1N4678 1.8 50 0.70 7.5 1.0 120.0
1N4679 2.0 50 0.70 5.0 1.0 110.0
1N4680 2.2 50 0.75 4.0 1.0 100.0
1N4681 2.4 50 0.80 2.0 1.0 95.0
1N4682 2.7 50 0.85 1.0 1.0 90.0
1N4683 3.0 50 0.90 0.8 1.0 85.0
1N4684 3.3 50 0.95 7.5 1.5 80.0
1N4685 3.6 50 0.95 7.5 2.0 75.0
1N4686 3.9 50 0.97 5.0 2.0 70.0
1N4687 4.3 50 0.99 4.0 2.0 65.0
1N4688 4.7 50 0.99 10.0 3.0 60.0
1N4689 5.1 50 0.97 10.0 3.0 55.0
1N4690 5.6 50 0.96 10.0 4.0 50.0
1N4691 6.2 50 0.95 10.0 5.0 45.0
1N4692 6.8 50 0.90 10.0 5.1 35.0
1N4693 7.5 50 0.75 10.0 5.7 31.8
1N4694 8.2 50 0.50 1.0 6.2 29.0
1N4695 8.7 50 0.10 1.0 6.6 27.4
1N4696 9.1 50 0.08 1.0 6.9 26.2
1N4697 10.0 50 0.10 1.0 7.6 24.8
1N4698 11.0 50 0.11 0.05 8.4 21.6
1N4699 12.0 50 0.12 0.05 9.1 20.4
1N4700 13.0 50 0.13 0.05 9.8 19.0
1N4701 14.0 50 0.14 0.05 10.6 17.5
1N4702 15.0 50 0.15 0.05 11.4 16.3
1N4703 16.0 50 0.16 0.05 12.1 15.4
1N4704 17.0 50 0.17 0.05 12.9 14.5
1N4705 18.0 50 0.18 0.05 13.6 13.2
1N4706 19.0 50 0.19 0.05 14.4 12.5
1N4707 20.0 50 0.20 0.01 15.2 11.9
1N4708 22.0 50 0.22 0.01 16.7 10.8
1N4709 24.0 50 0.24 0.01 18.2 9.9
1N4710 25.0 50 0.25 0.01 19.0 9.5
1N4711 27.0 50 0.27 0.01 20.4 8.8
1N4712 28.0 50 0.28 0.01 21.2 8.5
1N4713 30.0 50 0.30 0.01 22.8 7.9
1N4714 33.0 50 0.33 0.01 25.0 7.2
1N4715 36.0 50 0.36 0.01 27.3 6.6
1N4716 39.0 50 0.39 0.01 29.6 6.1
1N4717 43.0 50 0.43 0.01 32.6 5.5
NOTE 1 The JEDEC type numbers shown above have a standard tolerence of +5% of the
nominal Zener volume. VZis measured with the diode in thermal equilibrium at
25°C + 3°C.
NOTE 2 Vz @ 100
µ
A minus Vz @ 10
µ
A.
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
Power Dissipation: 500mW @ +50°C
DC Power Derating: 4 mW / °C above +50°C
Forward Voltage: 1.1 Volts maximum @ 200 mA
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
DESIGN DATA
CASE: Hermetically sealed glass
case. DO – 35 outline.
LEAD MATERIAL: Copper clad steel.
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (ROJEC):
250 ˚C/W maximum at L = .375 inch
THERMAL IMPEDANCE: (ZOJX): 35
˚C/W maximum
POLARITY: Diode to be operated with
the banded (cathode) end positive.
MOUNTING POSITION: ANY.
FIGURE 1
1N4678 thru 1N4717
0 25 50 75 100 125 150 175
TL, Lead temperature (C°) 3/8” from body
POWER DERATING CURVE
500
400
300
200
100
0
Pd, Rated Power
Dissipation (mW)
FIGURE 2
.1 .2 .3 .4 .5 1 2 5 10 20 30 40 50 100
OPERATING CURRENT lZT (mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
1000
500
400
300
200
100
50
40
30
20
10
5
4
3
2
1
ZENER IMPEDANCE ZZT (OHMS)
3.3 VOLT
5.1 VOLT
27 VOLT
11 VOLT
6.2 VOLT
