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

SZN4954 thru SZN4996

NOTE: All specifications are subject to change without notification.

SCD's for these devices should be reviewed by SSDI prior to release.

DATA SHEET #: Z00010D

DOC

Electrical Characteristics @ 25°C (Unless Otherwise Specified)

∞vz

Test

Current

Imp.

Knee

Imp.

Test

Current

Max dc

Current

@ 10 to

50 % of

Max

Peak

Surge

Test

Voltage

Reverse

Current

@ Vr

Temp.

Coeff.

Reverse

Current

+150

ºC

Nom

Min

Max

---

Max

Max

---

Rating

Max

Rating

---

Max

Max

Max

PART

NUMBER

V

V

V

mA

Ω

Ω

mA

mA

V

A

V

μA

% / ºC

μA

SZN4991

SZN4992

SZN4993

9/

SZN4994

9/

SZN4995

9/

240

270

300

330

360

228

257

285

314

342

252

283

315

346

378

5

5

4

4

3

650

800

950

1,175

1,400

1367

1400

1433

1467

1533

1.0

1.0

1.0

1.0

1.0

19.8

17.5

15.6

14.4

13.0

22

25

28

32

35

0.40

0.35

0.30

0.25

0.22

182.0

206.0

228.0

251.0

274.0

2.0

2.0

2.0

2.0

2.0

.115

.120

.120

.120

.120

100

100

100

100

100

SZN4996

9/

390

371

409

3

1,800

1667

1.0

12.0

40

0.20

297.0

2.0

.120

100

NOTES:

1/ All zener voltages are measured with an automated test set using a 10 - 50 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, and Availability- Contact Factory.

5/

Screening based on MIL-PRF-19500. Screening flows available on request.

6/

Suffix “SMS” for Square Tab Surface Mount.

7/

For tighter tolerances, consult the factory.

8/

Figures shown are for a peak sinusoidal surge current of 8.3 msec duration, repeated a maximum of 1 surge per minute.

9/

Contact factory for availability