P4KEX datasheet(2/5 Pages) HORNBY

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P4KE SERIES

TRANSIENT VOLTAGE SUPPRESSORS

REVERSE VOLTAGE:

6.8 to 440 VOLTS

PEAK PULSE POWER:

400 WATTS

FEATURES

· Plastic package has Underwriters Laboratory

DO-41

Flammability Classification 94V-0

· 400W peak pulse power capability on 10/1000µs

.052 (1.3)

waveform, repetition rate (duty cycle): 0.01%

(25.4) 1.0

.048 (1.2)

· Excellent clamping capability

MIN

· Low incremental surge resistance

· Very fast response time

(9.5) .375

MECHANICAL DATA

(7.2) .285

Case: Molded plastic, DO-41

.210 (5.3)

Epoxy: UL 94V-O rate flame retardant

(25.4) 1.0

.190 (4.8)

Lead: Axial leads, solderable per MIL-STD-202,

MIN

method 208 guaranteed

Polarity: Color band denotes cathode except bipolar

Mounting position: Any

Weight: 0.012ounce, 0.33gram

Maximum Ratings and Electrical Characteristics

Ratings at 25℃ ambient temperature unless otherwise specified.

Single phase, half wave, 60HZ, resistive or inductive load.

For capacitive load, derate current by 20%.

Peak power dissipation with a 10/1000µs waveform (Note 1) (Fig. 1)

Peak pulse current with a 10/1000µs waveform (Note 1)

Steady state power dissipation

at TL = 75°C, lead lengths 0.375" (9.5mm) (Note 2)

Peak forward surge current, 8.3ms

single half sine-wave unidirectional only (Note 3)

Maximum instantaneous forward voltage

at 25A for unidirectional only (Note 4)

Typical thermal resistance junction-to-lead

Typ. thermal resistance junction-to-ambient, LLead = 10mm

Operating junction and storage temperature range

NOTES:

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

2- Mounted on copper pad area of 1.6 x 1.6” (40 x 40mm) per Fig. 5

3- Measured on 8.3ms single half sine-wave or equivalent square wave, duty cycle = 4 pulses per minute maximum

4- VF = 3.5V for P4KE200(A) & below; VF = 6.5V for P4KE220(A) & above

Devices for Bidirectional Applications:

1- For bi-directional, use C or CA suffix for types P4KE6.8 thru types P4KE440A(e.g. P4KE6.8C, P4KE440CA).

2- Electrical characteristics apply in both directions.

Dimensions in inches and (millimeters)

IFSM

3.5/6.5

Symbols

PPPM

IPPM

PM(AV)

RθJL

RθJA

TJ，Tstg

Units

Watts

Amp

Watts

Amp

Volts

℃/W

℃

Limit

Minimum 400

See Next Table

100

–55 to +150

1.0

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