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Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, Ca 90638 Phone: (562) 404-4474 * Fax: (562) 404-1773 ssdi@ssdi-power.com * www.ssdi-power.com
SZ25A2.4 thru SZ25A43
250mW and 400mW 2.4 - 43 VOLTS ZENER DIODES
DESIGNER'S DATA SHEET
FEATURES:
Hermetically Sealed in Glass Axial Lead Rated at 250 mW Surface Mount Rated at 400 mW Available in Axial (L), Round Tab Surface Mount (SM) and Square Tab Surface Mount (SMS) Versions Available to TX, TXV, and Space Levels 5/ Available in 10% and 5% Tolerances. For other Voltage Tolerances, Contact Factory.
Maximum Ratings Nominal Zener Voltage Zener Current Continuous Power
L SM, SMS L SM, SMS
Symbol
Value
Units
VZ IZM PD Top, Tstg RJL RJE RJA
2.4 - 43 5.5 - 95 8.25 - 142.5 250 400 -65 to +175 500 300 600
V mA mW C C/W AXIAL (L)
DIM A B C D
MIN. .060" .120" 1.00" .018"
MAX .090" .200" --.022"
All dimensions are prior to soldering
Operating and Storage Temp.
Thermal Resistance, Junction to Lead, L=3/8" (for L) Junction to End Cap (for SM, SMS) Junction to Ambient (for All)
Part Number/Ordering Information 4/ SZ25 __ __ __ __
Screening
5/
__ = Not Screened TX = TX Level TXV = TXV S = S Level
DIM A B C D
MIN. .057" .130" .010"
Body to Tab Clearance: .001"
MAX. .067" .146" .022"
Package Type L = Axial Leaded
SM = Surface Mount Round Tab SMS = Surface Mount Square Tab
3/
ROUND TAB (SM)
All dimensions are prior to soldering
Voltage/Family
2.4 thru 43 = 2.4V thru 43V, See Table on Page 2
DIM A B C D MIN. .070" .175" .023"
Body to Tab Clearance: .001"
Voltage Tolerance
A = 10% Voltage Tolerance B = 5% Voltage Tolerance
MAX. .078" .210" .027"
SQUARE TAB (SMS) All dimensions are prior to soldering
NOTE: All specifications are subject to change without notification. SCD's for these devices should be reviewed by SSDI prior to release.
DATA SHEET #: Z00001G
DOC
Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, Ca 90638 Phone: (562) 404-4474 * Fax: (562) 404-1773 ssdi@ssdi-power.com * www.ssdi-power.com
SZ25A2.4 thru SZ25A43
Zener Test Current Maximum Zener Impedance (note 2)
IR @ VR A
100 75 50 25 15 10 5 5 5 5 5 3 3 3 3 3 3 2 1 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Electrical Characteristics @ 25C (Unless Otherwise Specified)
NUMBER 6/
PART
Nominal Zener Voltage (note 1)
Maximum Reverse Leakage Current
Maximum Continuous Current Axial (L) Surface Mount (SM) and (SMS)
IZM mA
142.5 135.0 127.5 120.0 112.5 105.0 97.5 90.0 82.5 75.0 67.5 52.5 47.7 43.5 41.1 39.3 37.2 32.4 30.6 28.5 26.25 24.45 23.10 21.75 19.80 18.75 17.85 16.20 14.85 14.25 13.20 12.75 11.85 10.80 9.90 9.15 8.25
Voltage Tolerance 10%
SZ25A2.4 SZ25A2.7 SZ25A3.0 SZ25A3.3 SZ25A3.6 SZ25A3.9 SZ25A4.3 SZ25A4.7 SZ25A5.1 SZ25A5.6 SZ25A6.2 SZ25A6.8 SZ25A7.5 SZ25A8.2 SZ25A8.7 SZ25A9.1 SZ25A10 SZ25A11 SZ25A12 SZ25A13 SZ25A14 SZ25A15 SZ25A16 SZ25A17 SZ25A18 SZ25A19 SZ25A20 SZ25A22 SZ25A24 SZ25A25 SZ25A27 SZ25A28 SZ25A30 SZ25A33 SZ25A36 SZ25A39 SZ25A43
VZ @ IZT Volts
2.4 2.7 3.0 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 8.7 9.1 10 11 12 13 14 15 16 17 18 19 20 22 24 25 27 28 30 33 36 39 43
IZT mA
10 10 10 10 10 10 10 10 10 5 5 5 5 5 5 5 5 5 5 5 5 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
ZZ @ IZT Ohms
30 30 30 28 24 23 22 20 18 14 10 8 8 9 9 11 18 24 32 15 16 18 18 20 22 24 26 30 34 36 42 44 50 58 70 80 93
VR 10% (A Suffix) Volts
0.95 0.95 0.95 0.95 0.95 0.95 0.95 1.9 1.9 2.9 3.8 4.8 5.7 6.2 6.2 6.7 7.6 8.0 8.7 9.4 9.5 10.5 11.4 12.4 13.3 13.3 14.3 16.2 17.1 18.1 20.0 20.0 22.0 24.0 26.0 29.0 31.0
VR 5% (B Suffix) Volts
1.0 1.0 1.0 1.0 1.0 1.0 1.0 2.0 2.0 3.0 4.0 5.0 6.0 6.5 6.5 7.0 8.0 8.4 9.1 9.9 10.0 11.0 12.0 13.0 14.0 14.0 15.0 17.0 18.0 19.0 21.0 21.0 23.0 25.0 27.0 30.0 33.0
IZM mA
95 90 85 80 75 70 65 60 55 50 45 35 31.8 29.0 27.4 26.2 24.8 21.6 20.4 19.0 17.5 16.3 15.4 14.5 13.2 12.5 11.9 10.8 9.9 9.5 8.8 8.5 7.9 7.2 6.6 6.1 5.5
5%
SZ25B2.4 SZ25B2.7 SZ25B3.0 SZ25B3.3 SZ25B3.6 SZ25B3.9 SZ25B4.3 SZ25B4.7 SZ25B5.1 SZ25B5.6 SZ25B6.2 SZ25B6.8 SZ25B7.5 SZ25B8.2 SZ25B8.7 SZ25B9.1 SZ25B10 SZ25B11 SZ25B12 SZ25B13 SZ25B14 SZ25B15 SZ25B16 SZ25B17 SZ25B18 SZ25B19 SZ25B20 SZ25B22 SZ25B24 SZ25B25 SZ25B27 SZ25B28 SZ25B30 SZ25B33 SZ25B36 SZ25B39 SZ25B43
NOTES: 1/ All zener voltages are measured with an automated test set using a 35 msec test time. Longer or shorter test time will have a corresponding effect on the measured value due to heating effects. 2/ Zener impedance is derived from the AC voltage divided by the AC current with RMS value of 10% of DC zener test current superimposed on the test current. 3/ SSDI standard marking consists of a contrasting color cathode dot or band. Part number information is included on packaging labels. 4/ For Ordering Information, Price, Operating Curves, and Availability- Contact Factory. 5/ 6/ Screened to MIL-PRF-19500. Suffix "L" for Axial, "SM" for Round Tab Surface Mount, and "SMS" for Square Tab Surface Mount.
NOTE: All specifications are subject to change without notification. SCD's for these devices should be reviewed by SSDI prior to release.
DATA SHEET #: Z00001G
DOC

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