NTE4903 thru NTE4999

Surge Clamping, Transient Overvoltage Suppressor

Bidirectional

Description:

The NTE4900 series of silicon Transient Suppressors designed to protect voltage sensitive compo-

nents from high energy voltage transients. Transient over voltage suppressor devices have become

very important as a consequence of their high surge capability, extremely fast response time, and low

incremental surge resistance (Rs).

Application:

The NTE4900 series has a peak pulse power rating of 1500 watts for one millisecond. Can protect

integrated circuits, hybrids, CMOS, MOS, and other voltage sensitive components in a broad range

of applications such as telecommunications, power supplies, computers, automotive, industrial and

medical equipment.

Absolute Maximum Ratings;

1500W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

< 5 x 10–9 sec

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating and Storage Temperature

–65

°C to +175°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Forward Surge Rating 200 Amps,

1/20 Second at +25

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Steady State Power Dissipation

5.0 W @ T1 = +25

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics:

Clamping Factor: 1.33 @ full rated power

1.20 @ 50% rated power

(Breakdown Voltage) as measured on a specific device.

Maximum Ratings

NTE Type

Number

Diagram

Number

Maximum Reverse

Stand Off Voltage

(Volts)

(Volts)

Clamping Voltage

(Volts)

Reverse Leakage

(

µA)

Peak Pulse

Current

(Amps)

Temperature

Coefficient

of BV%/

°C

Min

Typ

Max

4903

183

5.50

6.12

6.80

7.48

10.0

10.8

1000.0

139.00

0.057

4905

183

6.40

7.13

7.50

7.88

10.0

11.3

500.0

132.00

0.061

4907

183

7.02

7.79

8.20

8.61

10.0

12.1

200.0

124.00

0.065

4911

183

8.55

9.50

10.00

10.50

10.0

14.5

10.0

103.00

0.073

4915

183

10.20

11.40

12.00

12.60

1.0

16.7

5.0

90.00

0.078