SMAJ530 THRU SMAJ550

Surface Mount TransZorb

TM

Transient Voltage Suppressors

Voltage Range

530 to 550 Volts

300 Watts Peak Power

Features

a

Plastic package has Underwriters Laboratory Flammability

Classification 94V-0

a

Protects power IC controllers such as TOPSwitch®

a

Excellent clamping capability

a

Glass passivated junction

a

High temperature soldering guaranteed: 260

+ / 10 seconds

at terminals

a

Available in unidirectional only

Mechanical Data

a

Case: JEDEC DO-201AC molded plastic body over

passivated junction

a

Terminals: Solder plated, solderable per MIL-STD-

750, Method 2026

a

Polarity: The band denotes the cathode, which is

positive with respect to the anode under normal TVS

operation

a

Mounting position: Any

SMA/DO-214AC

Dimensions in inches and (millimeters)

Type Number

Symbol

SMAJ530

SMAJ550

Units

Device Marking Code

HD

SB

Peak Pulse Power Dissipation

Minimum 300

Watts

1.0

Watts

Stand-off Voltage

477

495

V

Typical Thermal resistance Junction-to-lead

R

JL

27

+/W

Typical Thermal Resistance Junction-to-ambient

R

JA

75

+/W

Operating and Storage Temperature Range

-55 to + 150

+

Electrical Characteristics

Type Number

Symbol

SMAJ530

SMAJ550

Units

Minimum Breakdown Voltage at 100uA

530

550

V

Max. Clamping Voltage at 400mA,

10/1000uS-Waveform

760

V

Maximum DC Reverse Leakage Current at

5.0

uA

650

mV

+

Typical Capacitance (Note 3) at

0V

200V

90

7.5

pF

Notes: 1. Non Repetitive Current Pulse per Fig. 3 and Derated above 25

2. Peak Pulse Power Waveform is 10 / 1000uS.

3. Measured at 1MHz.

.062(1.58)

.056(1.43)

.012(.31)

.006(.15)

.008(.20)

.004(.10)

.056(1.41)

.035(0.90)

.187(4.75)

.167(4.25)

.210(5.33)

.195(4.95)

.111(2.83)

.102(2.58)

.103(2.61)

.078(1.99)