MXRT100KP180ATR - Microsemi Corp.

Preferred 100 kW Transient Voltage

Suppressor for AIRCRAFT POWER

BUS PROTECTION

WWW.Microsemi .COM

SCOTTSDALE DIVISION

RT100KP33A thru RT100KP400CA, e3

RT100KP33A – 400CA, e3

DESCRIPTION APPEARANCE

Microsemi’s 100 kW Transient Voltage Suppressors (TVSs) are designed

for aircraft applications requiring high power transient protection with a

comparatively small axial-leaded package size. This includes various

threats such as “Waveform 4” at 6.4/69 µs per RTCA/DO-160E Section 22.

It is also available with screening in accordance with MIL-PRF-19500 o

avionics screening as described in the Features section herein. It may also

be optionally acquired with RoHS Compliant (annealed matte-Tin finish)

with an e3 suffix added to the part number. Microsemi also offers a broad

spectrum of other TVSs to meet your needs.

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

FEATURES APPLIC ATIONS / BENEFITS

• Available in both Unidirectional and Bidirectional

construction (Bidirectional with CA suffix)

• TVS selection for 33 to 400 V Standoff Volta ges (VWM)

• Suppresses transients up to 100 kW @ 6.4/69 μs

• Fast response with less than 5 ns turn-on time.

• Optional 100% screening for avionics grade is available

by adding MA prefix to part number for added 100%

temperature cycle -55oC to +125oC (10X), surge (3X) in

each direction, 24 hours HTRB in each d irection, and post

test (VBR and ID)

• Options for screening in accordance with MIL-PRF-19500

for JAN, JANTX, and JANTXV are also available by adding

MQ, MX, or MV prefixes respectively to part numbers.

• Moisture classification is Level 1 with no dr y pack required

per IPC/JEDEC J-STD-020B.

• RoHS Compliant devices avai lable by adding “e3” suffix

• Protection from high power switching transients,

induced RF, and lightning threats with comparatively

small package size (0.25 inch diameter)

• Protection from ESD and EFT per IEC61000- 4-2 an d

IEC61000-4-4

• Pin injection protection per RTCA/DO-160E up to

Level 4 for Waveform 4 (6.4/69 µs) on all devices

• Pin injection protection per RTCA/DO-160E up to

Level 5 for Waveform 4 (6.4/69 µs) on device types

RT100KP33A or CA up to RT100KP 26 0A or CA

• Pin injection protection per RTCA/DO-160E up to

Level 3 for Waveform 5A (40/120 µs) on all devices

• Pin injection protection per RTCA/DO-160E up to

Level 4 for Waveform 5A (40/120 µs) on device types

RT100KP33A or CA up to RT100KP 64A or CA

• Consult Factory for other voltages with similar Peak

Pulse Power capabilities.

MAXIMUM RAT ING S MECHANICAL & PACKAGING

• Peak Pulse Power dissipation at 25ºC: 100 kW at 6.4/69 µs

waveform in Figure 8 (also see figures 1 and 2)

• Impulse repetition rate: 0.005%

• t

clamping (0 volts to VBR min): <100 ps theoretical for

unidirectional and <5 ns for bi directional

• Operating & storage temperatures: -65oC to +150oC

• Thermal resistance: 17.5C/W junction to lead, or 77.5C/W

junction to ambient when mounted on FR4 PC board with 4

mm2 copper pads (1 oz ) and track width 1 mm, length 25

• Steady-state power dissipation: 7 Watts @ TL = 27.5oC or

1.61 Watts at TA =25 oC when mounted on FR4 PC Board

described for thermal resistance above

• Forward surge: 250 Amps 8.3 ms half-sine wave for

unidirectional devices only

• Solder Temperatures: 260oC for 10 s maximum

• CASE: Void free transfer molded thermosetting

epoxy meeting UL94V-O requirements

• FINISH: Tin-Lead or RoHS Compliant matte-Tin

plating solderable p er MIL-ST D-750, method 2026

• Polarity: Cathode marked with band for

unidirectional (no band required for bi-directional)

• MARKING: Manufacturers logo and part number.

Add prefix MA, MQ, MX, etc., for screened parts.

• WEIGHT: 1.7 grams (approximate)

• TAPE & REEL option: Standard per EIA-296 for

axial package (add “TR” suffix to part number)

• Package dimensions: See last page

Microsemi

Scottsdale Division Page 1

10-03-2007 Rev B 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1 503

Preferred 100 kW Transient Voltage

Suppressor for AIRCRAFT POWER

BUS PROTECTION

WWW.Microsemi .COM

SCOTTSDALE DIVISION

RT100KP33A thru RT100KP400CA, e3

RT100KP33A – 400CA, e3

ELECTRICAL CHARACTERISTICS at 25ºC

Rated

Stand-off

Voltage

VWM

Breakdown Voltage

V(BR) Volts

@ I(BR)

V(BR) I(BR)

Maximum

Clamping

@ IPP (2)

Maximum

Reverse

Leakage

@ VWM

Maximum

Peak Pulse

Current (3)

@6.4/69 µs

IPP

Maximum

V(BR)

temperature

Coefficient

αV(BR)

Part

Number

(1) (4)

VOLTS VOLTS mA VOLTS

μAmps Amps mV/oC

RT100KP33A

RT100KP36A 33

36 36.7-40.6

40.0-44.2 50

50 58.6

61.8 5000

5000 1825 *

1672 * 38

RT100KP40A

RT100KP43A 40

43 44.4-49.1

47.8-52.8 20

10 68.6

71.0 1500

500 1518 *

1432 * 46

RT100KP45A

RT100KP48A 45

48 50.0-55.3

53.3-58.9 5

5 73.0

77.7 150

150 1365 *

1285 * 52

RT100KP51A

RT100KP54A 51

54 56.7-62.7

60.0-66.3 5

5 82.8

87.5 50

25 1205 *

1139 * 60

RT100KP58A

RT100KP60A 58

60 64.4-71.2

66.7-73.7 5

5 94.0

97.3 15

15 1066 *

1012 * 68

RT100KP64A

RT100KP70A 64

70 71.1-78.6

77.8-86.0 5

5 104

114 10

10 959 *

879 76

RT100KP75A

RT100KP78A 75

78 83.3-92.1

86.7-95.8 5

5 122

126 10

10 819

793 89

RT100KP85A

RT100KP90A 85

90 94.4-104

100-111 5

5 137

146 10

10 726

686 102

109

RT100KP100A

RT100KP110A 100

110 111-123

122-135 5

5 162

178 10

10 619

559 121

133

RT100KP120A

RT100KP130A 120

130 133-147

144-159 5

5 193

209 10

10 519

473 145

157

RT100KP150A

RT100KP160A 150

160 167-185

178-197 5

5 243

259 10

10 413

386 183

195

RT100KP170A

RT100KP180A 170

180 189-209

200-221 5

5 275

291 10

10 366

346 207

219

RT100KP200A

RT100KP220A 200

220 222-245

245-271 5

5 322

356 10

10 313

280 243

269

RT100KP250A

RT100KP260A

RT100KP280A

RT100KP300A

250

260

280

300

278-308

289-320

311-345

333-369

403

419

451

483

246

236

220

206

306

318

344

368

RT100KP350A

RT100KP400A 350

400 389-431

444-492 5

5 564

644 10

10 176

153 430

490

1. For bidirectional construction, indicate a CA suffix (instead of A) after the part number

2. Clamping voltage does not include any variable parasitic lead inductance effects observed during the 6.4 µs rise time due to lead length.

3. The Maximum Peak Pulse Current (IPP) shown represents the performance capabilities by design.

* Surge test screening is only performed up to 900 Amps (test equipment limitations).

4. Part numbers in bold italics are preferred devices.

Microsemi

Scottsdale Division Page 2

10-03-2007 Rev B 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Preferred 100 kW Transient Voltage

Suppressor for AIRCRAFT POWER

BUS PROTECTION

WWW.Microsemi .COM

SCOTTSDALE DIVISION

RT100KP33A thru RT100KP400CA, e3

RT100KP33A – 400CA, e3

GRAPHS

Microsemi

Scottsdale Division Page 3

10-03-2007 Rev B

NOTE: This PPP versus

time graph allows the

designer to use these parts

over a broad power

spectrum using the

guidelines illustrated in

pp Note 104 on

Microsemi’s website.

ircraft transients are

described with exponential

decaying waveforms. For

suppression of square-

wave impulses, derate

power and current to 66%

of that for exponential

decay shown in Figure 1.

PPP Peak Pulse Power vs. Pulse Time – kW

Non-Re

etitive Pulse

Peak Pulse Power (PPP) or continuous

Power in % of 25oC ratin

tp – Pulse Time – sec. TL Lead Temperature oC

FIGURE 1 FIGURE 2

Peak Pulse Power vs. Pulse Time POWER DERATING

To 50% of Exponentially Decaying Pulse

Correct Wrong

FIGURE 3 FIGURE 5

INSTALLATION

TVS devices used across power lines are

subject to relatively high magnitude surge

currents and are more prone to adverse

parasitic inductance effects in the mounting

leads. Minimizing the shunt path of the lead

inductance and their V= -Ldi/dt effects will

optimize the TVS effectiveness. Examples

of optimum installation and poor installation

are illustrated in figures 3 through figure 6.

Figure 3 illustrates minimal parasitic

inductance with attachment at end of device.

Inductive voltage drop is across input leads.

Virtually no “overshoot” voltage results as

illustrated with figure 4. The loss of

effectiveness in protection caused by

excessive parasitic inductance is illustrated

in figures 5 and 6. Also see MicroNote 111

for further information on “Parasitic Lead

Inductance in TVS”.

FIGURE 4 FIGURE 6

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Preferred 100 kW Transient Voltage

Suppressor for AIRCRAFT POWER

BUS PROTECTION

WWW.Microsemi .COM

SCOTTSDALE DIVISION

RT100KP33A thru RT100KP400CA, e3

RT100KP33A – 400CA, e3

Note: frequency is 1MHz

t – time t – time t - Time

FIGURE 7 – Waveform 3 FIGURE 8 – Waveform 4 FIGURE 9 – Waveform 5A

NOTE: The 1MHz damped oscillatory waveform (3) has an effective pulse width of 4 μs. Equivalent peak pulse power at each of the pulse widths represented in

RTCA/DO-160E for waveforms 3, 4 and 5A (above) have been determined referencing Figure 1 herein as well as Application Notes 104 and 120 (found on

Microsemi’s website) and are listed below.

WAVEFORM

NUMBER PULSE WIDTH

μs

PEAK PULSE

POWER

Peak Pulse Current

Conversion Factor *

from Rated IPP

at 6.4/69 µs

3 4 340 3.40x

4 6.4/69 100 1.00x

5A 40/120 70 0.70x

* Multiply by the conversion factor shown with reference to the maximum rated IPP in the Electrical Characteristics Table on page 2.

Note: High current fast rise-time transients of 250 ns or less can more than triple the VC from parasitic inductance effects (V= -Ldi/dt) compared to the

clamping voltage shown in the initial Electrical Characteristics on page 1 as also described in Figures 5 and 6 herein.

Also see MicroNotes 127, 130, and 132 on the Microsemi website (Support section) for further information on Tran sient

Voltage Suppressors with reference to ai rc raft industry specification RTCA/ DO -160E.

DIMENSIONS

Microsemi

Scottsdale Division Page 4

10-03-2007 Rev B 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1 503