Circuit Protection

System

Page:1

Specifications are subject to change without notice.

Transient Voltage Suppressors - P4SMA Series

Features

Mechanical Characteristics

Rating

Symbol

Value

Units

Peak Pulse Power Dissipation at TA=25°C by 10x1000μs test

waveform (Fig.1)(Note 1),(Note 2)

P

PPM

400

Watts

Power Dissipation on inifinite heat sink at TA=50°C

P

D

3.3

Watts

Peak Forward Surge Current, 8.3ms Single Half Sine

Wave(Note 3)

40

Amps

Maximum Instantaneous Forward Voltage at 25A for

Unidirectional only (Note 4)

V

F

3.5/6.5

V

Operating junction and Storage Temperature Range.

T

-55°C to 175°C

°C

Typical Thermal Resistance Junction to Lead

R

uJL

30

°C/W

Typical Thermal Resistance Junction

to Ambient

R

uJA

120

°C/W

Notes:

1. Non-repetitive current pulse , per Fig. 3 and derated above TA = 25°C per Fig. 2.

2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 perminute maximum.

3. VF<3.5V for devices of VBR _< 200V and VF<5.0V for devices of VBR _> 201V.

1. Halogen-free

2. Rohs compliant

3. Typical maximum temperature coefficient

5. Glass passivated Chip junction in DO-214AC package

6. 400W peak pulse capadility at 10x1000μs waveform,repetition rate (duty

cycles):0.01%

7. Fast response time:typically less than 1.0ps from 0 Volts to BV min

8. Excellent clamping capability

9. Low incremental surge resistance

10. Typical IR less than 5μA above 11V

11. High temperature soldering guaranteed: 260°C/40 seconds / 0.375”,

(9.5mm) lead length, 5lbs., (2.3kg)tension

12. Plastic package has underwriters laboratory

flammability classification 94v-0

TVS devices are ideal for the protection of I/O interfaces,VCC bus and other vulnerable circuits used in telecom, computer,

industrial and consumer electronic applications.

UNI

BI

UNI

BI

Anode

Cathode

Applications