SMAJ530 AND SMAJ550

Steady State Power - 1Watt

Reverse Voltage - 530, 550 Volts

FEATURES

♦ Plastic package has Underwriters Laboratory

Flammability Classification 94V-0

♦ Glass Passivated Junction

♦ High temperature soldering guaranteed:

250°C/10 seconds at terminals

♦ Exellent Clamping capability

♦ Available in unidirectional only

MECHANICAL DATA

Case: JEDEC DO-214AC molded plastic body over

passivated chip

Terminals: Solder plated, solderable per MIL-STD-750,

Method 2026

Polarity: The color band denotes the cathode, which is

positive with respect to the anode under normal TVS

operation

Mounting Position: Any

Weight: 0.002 ounces, 0.064 gram

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25°C ambient temperature unless otherwise specified.

SYMBOLS

SMAJ530

SMAJ550

UNITS

Device marking code

HD

SB

1.0

Watts

Minimum 300

Watts

Minimum breakdown voltage at 100

530

550

Volts

Maximum clamping voltage at 300mA, 10/1000

Vc

660

Volts

Stand-off voltage

477

495

Volts

5.0

µA

Typical thermal resistance

R

ΘJL

27

°C/W

Typical thermal resistance

R

ΘJA

75

°C/W

650

mV°C

at 0V

75

pF

at 200V

45

Operating junction and storage temperature range

-55 to +150

°C

NOTES:

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

(2) Mounted on 5.0mm

(4) Measured at 1MHz

(5) Peak pulse power waveform is 10/100

µS

1/4/99

0.157 (3.99)

0.177 (4.50)

0.006 (0.152)

0.012 (0.305)

0.030 (0.76)

0.060 (1.52)

0.008 (0.203) MAX.

0.194 (4.93)

0.208 (5.28)

0.100 (2.54)

0.110 (2.79)

0.078 (1.98)

0.090 (2.29)

0.049 (1.25)

0.065 (1.65)

DO-214AC

Dimensions in inches and (millimeters)

ADVANCED INFORMATION