165 A
195 A
230 A
STANDARD RECOVERY DIODES
I27096 rev. B 10/99
1
IRK. SERIES
INT-A-pakä Power Modules
www.irf.com
IF(AV) 165 195 230 A
@ TC100 100 100 °C
IF(RMS) 260 305 360 A
IFSM @ 50Hz 4000 4750 6540 A
@ 60Hz 4200 4980 6850 A
I2t @ 50Hz 80 113 214 KA2s
@ 60Hz 73 103 195 KA2s
I2√t 1130 1130 2140 KA2√s
VRRM up to 2000 up to 2000 up to 2400 V
TJrange - 40 to 150 °C
Major Ratings and Characteristics
Features
High voltage
Electrically isolated base plate
3000 VRMS
isolating voltage
Industrial standard package
Simplified mechanical designs, rapid assembly
High surge capability
Large creepage distances
UL E78996 approved
Description
These series of INT-A-paks uses high voltage power
diodes in two basic configurations. The semiconductors
are electrically isolated from the metal base, allowing
common heatsinks and compact assemblies to be built.
They can be interconnected to form single phase or three
phase bridges and the single diode module can be used
in conjunction with the thyristor modules as a freewheel
diode. These modules are intended for general purpose
applications such as battery chargers, welders and plat-
ing equipment and where high voltage and high current
are required (motor drives, etc.).
IRK.165.. IRK.195.. IRK.235..
IRK.166.. IRK.196.. IRK.236..
Parameters Units
IRK.165, .166, .195, .196, .235, .236 Series
2
I27096 rev. B 10/99
www.irf.com
Parameters Units Conditions
IF(AV) Maximum average forward current 165 195 230 A 180o conduction, half sine wave
@ Case temperature 100 100 100 oC
IF(RMS) Maximum RMS forward current 260 305 360 A as AC switch
IFSM Maximum peak, one-cycle forward, 4000 4750 6540 A t = 10ms No voltage
non-repetitive surge current 4200 4980 6850 t = 8.3ms reapplied
3350 4000 5500 t = 10ms 100% VRRM
3500 4200 5750 t = 8.3ms reapplied Sinusoidal half wave,
I2t Maximum I2t for fusing 80 113 214 KA2s t = 10ms No voltage Initial TJ = T J max.
73 103 195 t = 8.3ms reapplied
56 80 151 t = 10ms 100% VRRM
52 73 138 t = 8.3ms reapplied
I2√t Maximum I2√t for fusing 798 1130 2140 KA2√s t = 0.1 to 10ms, no voltage reapplied
VF(TO)1 Low level value of threshold voltage 0.70 0.75 0.79 V (16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max.
VF(TO)2 High level value of threshold voltage 0.87 0.86 0.92 (I > π x IF(AV)), TJ = TJ max.
rt1 Low level forward slope resistance 1.69 0.92 0.64 mΩ(16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max.
rt2 High level forward slope resistance 1.42 0.77 0.49 (I > π x IF(AV)), TJ = TJ max.
VFM Maximum forward voltage drop 1.57 1.32 1.26 V IFM = π x IF(AV), TJ = TJ max., 180o conduction
Av. power = VF(TO) x IF(AV) + rf
x (IF(RMS))2
IRK.165 IRK.195 IRK.235
IRK.166 IRK.196 IRK.236
Type number Voltage VRRM , Maximum repetitive VRSM , Maximum non-repetitive IRRM Max
Code peak reverse voltage peak reverse voltage @ 150°C
VVm A
IRK.165- / IRK.166- 04 400 500 50
IRK.195- / IRK.196- 08 800 900
IRK.235- / IRK.236- 12 1200 1300
16 1600 1700
20 2000 2100
IRK.235-/ IRK.236- 24 2400 2500 50
Voltage Ratings
ELECTRICAL SPECIFICATIONS
Forward Conduction
IRRM Max. peak reverse leakage 50 mA TJ = 150oC
current
VINS RMS isolation voltage 3000 V 50 Hz, circuit to base, all terminals shorted, t = 1 sec
Blocking
Parameter IRK.165 / .195 / .235 Units Conditions
IRK.166 / .196 / .236
IRK.165, .166, .195, .196, .235, .236 Series
3
I27096 rev. B 10/99
www.irf.com
Sinusoidal conduction @ TJ max. Rectangular conduction @ TJ max.
Devices Units
180o120o90o60o30o180o120o90o60o30o
IRK.165, .166 0.016 0.019 0.024 0.035 0.060 0.011 0.019 0.026 0.037 0.060 K/W
IRK.195, .196 0.016 0.019 0.024 0.035 0.060 0.011 0.019 0.026 0.037 0.060
IRK.235, .236 0.016 0.019 0.025 0.036 0.060 0.012 0.020 0.027 0.037 0.060
∆R Conduction (per Junction)
(The following table shows the increment of thermal resistance RthJC when devices operate at different conduction angles than DC)
IRK D 23 6 - 24 N
1 2 3
1- Module type
2- Circuit configuration
3- Current rating: IF(AV) x 10 rounded
4- 5 = option with spacers and longer terminal screws
56 = option with standard terminal screws
6- Voltage code: Code x 100 = VRRM (see Voltage Rating Table)
7- None = Standard devices
N = Aluminum nitrade substrate
4
Device Code
Ordering Information Table
56
TJMax. junction operating -40 to 150 °C
temperature range
Tstg Max. storage temperature range -40 to 150 °C
RthJC Max. thermal resistance, 0.20 0.20 0.17 K/W Per junction, DC operation
junction to case
RthCS Max. thermal resistance, 0.035 K/W
case to heatsink
T Mounting torque ±10%
IAP to heatsink 4 to 6 Nm
busbar to IAP 4 to 6
wt Approximate weight 500 (17.8) g (oz)
Parameter IRK.165 / .195 / .235 Units Conditions
IRK.166 / .196 / .236
Thermal and Mechanical Specifications
A mounting compound is recommended
and the torque should be rechecked after a
period of 3 hours to allow for the spread of
the compound
Mounting surface flat, smooth and greased
Per module
IRK.165, .166, .195, .196, .235, .236 Series
4
I27096 rev. B 10/99
www.irf.com
- All dimensions in millimeters (inches)
- Dimensions are nominal
- Full engineering drawings are available
on request
- UL identification number for cathode
wire: UL 1385
- UL identification number for package:
UL 94V0
Outline Table
For all types A B C D E
IRK...5 25 (0.98) ---- ---- 41 (1.61) 47 (1.85)
IRK...6 23 (0.91) 30 (1.18) 36 (1.42) ---- ----
IRKD... IRKC... IRKJ... IRKE...
Fig. 1 - Current Ratings Characteristics Fig. 2 - Current Ratings Characteristics
80
90
100
110
120
130
140
150
0 20 40 60 80 100 120 140 160 180
30° 60° 90°120°180°
Maximum Al lowable Case Temperature (°C)
Con duct ion Angle
Average Forward Curr ent (A)
IR K.16 6.. Ser ies
R (DC) = 0.20 K/W
thJC
80
90
100
110
120
130
140
150
0 50 100 150 200 250 300
DC
30°60°90°120°180°
Maximum Allowable Case Temperature (°C)
Cond uct ion Period
Average Forward Curre nt (A)
IR K. 166.. Se ries
R (DC) = 0.20 K/W
thJC
IRK.165, .166, .195, .196, .235, .236 Series
5
I27096 rev. B 10/99
www.irf.com
Fig. 4 - Forward Power Loss CharacteristicsFig. 3 - Forward Power Loss Characteristics
Fig. 5 - Maximum Non-Repetitive Surge Current Fig. 6 - Maximum Non-Repetitive Surge Current
0
50
100
150
200
250
300
0 40 80 120 160 200 240 280
DC
180°
120°
90°
60°
30°
Average Forward Current (A)
RMS Limit
M a xi mum A vera ge F or ward P ow er Lo s s (W)
Conduction P eriod
IRK.166.. Series
T = 150°C
Per Ju nctio n
J
Fig. 7 - Forward Power Loss Characteristics
0
25
50
75
100
125
150
175
200
225
250
0 25 50 75 100 125 150 175
Average Forward Curr ent (A)
RMS Lim it
Maximum Average Forward Power Loss (W)
Conduction Angle
180°
120°
90°
60°
30°
IR K.16 6.. Serie s
T = 15 0 °C
Pe r Junction
J
1000
1500
2000
2500
3000
3500
4000
110100
Pe ak Half Sine Wave Fo rwar d Current (A)
Number Of Eq ual Amplitude Half Cycle Cur r ent Pu lses (N)
Initial T = 150°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At An y Ra ted Lo ad Condi tio n And Wit h
Rate d V Applied Fo llo win g Sur ge.
RRM J
IRK.166.. Series
Per Junction
0 255075100125150
Maximum Al lowable Ambien t Temperature (°C)
R = 0.02 K/W - Delta R
thSA
0.06 K/W
0.1 K/W
0.16 K/W
0.4 K/W
0.7 K/W
0.3 K/W
0
50
100
150
200
250
300
350
400
450
0 50 100 150 200 250
Tota l R MS O u tp u t Cu r re nt (A)
Max imum Tot al Forward Power Loss (W)
180°
(Sine)
DC
IRK.166.. Series
Per Ju nction
T = 150°C
J
500
1000
1500
2000
2500
3000
3500
4000
0.01 0.1 1
Peak Half Sine Wave Forward Curr e nt (A)
Pulse Train Duration (s)
Maximum N on Repetitive Surg e Curre nt
Initia l T = 150°C
No Voltage Reapplied
Ra ted V Reapplied
RRM
Versus Pulse Train Duration.
J
I RK .166.. Series
Per Junction
IRK.165, .166, .195, .196, .235, .236 Series
6
I27096 rev. B 10/99
www.irf.com
Fig. 10 - Forward Voltage Drop Characteristics Fig. 11 - Thermal Impedance ZthJC Characteristic
Fig. 9 - Forward Power Loss Characteristics
Fig. 8 - Forward Power Loss Characteristics
0 25 50 75 100 125 150
Maximum Allowable Ambient Temperature (°C)
R = 0.02 K/W - Delta R
thSA
0.04 K/W
0.06 K/W
0.08 K/W
0.1 K/W
0.16 K/W
0.2 K/W
0.25 K/W
0.4 K/W
0.7 K/W
0
100
200
300
400
500
600
700
800
900
1000
0 50 100 150 200 250 300 350
Total Output Current (A)
Ma ximum Total Po w er Loss (W )
180°
(Sine)
180°
(Rect)
2 x IRK .166.. Series
Single Phase Bridge
Connected
T = 150°C
J
0 25 50 75 100 125 150
M a xi mu m Allow a bl e A m b ien t Temp era t u r e (°C)
0.7 K/W
0.4 K/W
0.25 K/W
0.16 K/W
0.12 K/W
0.08 K/W
0.06 K/W
0.04 K/W
R = 0.02 K/W - Delta R
thSA
0
200
400
600
800
1000
1200
1400
1600
0 100 200 300 400 500
Total Output Current (A)
Maximu m Total Power Loss (W)
120°
(Rect)
3 x IRK.166.. Series
Three Phase Bridge
Connected
T = 150°C
J
10
100
1000
10000
01234567
T = 25°C
J
Instantaneous Forward Current (A )
Instantaneous Forward Voltage (V)
IRK.166.. Ser ies
Per Junction
T = 150°C
J
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10 100
Sq u ar e W ave Pulse D urat ion ( s )
thJC
Transient Thermal Impedance Z (K/W)
Steady State Value
R = 0. 2 0 K/W
(DC Op eration)
thJC
IRK.166.. Series
Per Junction
IRK.165, .166, .195, .196, .235, .236 Series
7
I27096 rev. B 10/99
www.irf.com
Fig. 15 - Forward Power Loss CharacteristicsFig. 14 - Forward Power Loss Characteristics
Fig. 12 - Current Ratings Characteristics Fig. 13 - Current Ratings Characteristics
Fig. 16 - Maximum Non-Repetitive Surge Current Fig. 17 - Maximum Non-Repetitive Surge Current
80
90
100
110
120
130
140
150
0 40 80 120 160 200
30°60°90°120°
180°
Ma ximum Allowable Cas e Temper a ture (°C)
Con duct ion Angle
Average Forward Current (A)
IRK.196.. Series
R (DC) = 0.20 K/W
thJC
80
90
100
110
120
130
140
150
0 50 100 150 200 250 300 350
DC
30°60°90°120°180°
Maximum A llowa b le Ca s e Temp erat ure (°C)
Cond uction Peri od
Av er ag e Fo rw a rd Cu rr ent (A)
IRK.196.. Series
R ( DC) = 0 .2 0 K / W
thJC
0
25
50
75
100
125
150
175
200
225
250
0 40 80 120 160 200
Average Forw ard Current (A)
RMS Limit
M ax im u m Av er ag e Fo rw a rd Pow er Loss (W )
Conduction Angle
180°
120°
90°
60°
30°
IRK.196.. Series
T = 150°C
Per Junction
J
0
50
100
150
200
250
300
350
0 50 100 150 200 250 300 350
DC
180°
120°
90°
60°
30°
Av erage Forward Current ( A)
RMS Limit
Maximum Average F orward Power Loss (W)
Conduction Period
I RK.196. . Seri es
T = 150°C
Per Jun cti on
J
1000
1500
2000
2500
3000
3500
4000
4500
1 10 100
Peak Half Sine Wave Forward Current (A)
Number Of Equal Amplitude Ha lf Cycle Current P ulses (N)
Initial T = 150°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At An y Ra ted Lo ad Condi tion And With
Rated V Applied Fol lowing Surge.
RRM J
IRK.196.. Series
Per Junction
1000
1500
2000
2500
3000
3500
4000
4500
5000
0.01 0.1 1
Peak Half Sine Wav e Forward Current ( A )
Pulse T rain Duration (s)
M aximum N on R e pet it iv e Surg e Current
Initial T = 150°C
No Voltage Reapplied
Rated V Reapplied
Versus Pulse Train Duratio n.
RRM
J
IRK.196.. Series
Per Ju nction
IRK.165, .166, .195, .196, .235, .236 Series
8
I27096 rev. B 10/99
www.irf.com
Fig. 18 - Forward Power Loss Characteristics
Fig. 19 - Forward Power Loss Characteristics
Fig. 20 - Forward Power Loss Characteristics
0 25 50 75 100 125 150
M a xi mu m Allow a bl e A m b ien t Temp era t u r e (°C)
R = 0.02 K/W - Delta R
thSA
0.08 K/W
0.2 K/W
0.7 K/W
0.3 K/W
0.5 K/W
0
50
100
150
200
250
300
350
400
450
0 50 100 150 200 250 300
To tal RMS Output Current (A)
Ma ximum T ota l Forwa rd Po we r Loss (W )
180°
(Sine)
DC
IR K. 196.. Ser ie s
Per Jun ction
T = 150°C
J
0 25 50 75 100 125 150
M a xi mu m Allo wab l e A mb ient Temper a t u re (°C)
R = 0.02 K/W - Delta R
thSA
0.04 K/W
0.06 K/W
0.08 K/W
0.16 K/W
0.2 K/W
0.4 K/W
0.7 K/W
0.3 K/W
0.12 K/W
0
100
200
300
400
500
600
700
800
900
1000
0 50 100 150 200 250 300 350 400
Tota l Ou tp ut Cu r re n t (A )
Max imu m Total Pow er Loss ( W )
180°
(Sine)
180°
(Rect)
2 x IRK.196.. Series
Single Phase Bridge
Connected
T = 150°C
J
0 25 50 75 100 125 150
Maximum Al lowable Ambient Temperature (°C)
R = 0.02 K/W - Delta R
thSA
0.04 K/W
0.08 K/W
0.1 K/W
0.16 K/W
0.7 K/W
0.3 K/W
0
200
400
600
800
1000
1200
1400
1600
0 100 200 300 400 500 600
To ta l Ou tp u t Curr ent ( A)
Maximum Total Power Loss (W)
120°
(Rect)
3 x IRK.196.. Series
Three Ph ase Brid ge
Connected
T = 150°C
J
IRK.165, .166, .195, .196, .235, .236 Series
9
I27096 rev. B 10/99
www.irf.com
Fig. 21 - Forward Voltage Drop Characteristics Fig. 22 - Thermal Impedance ZthJC Characteristic
Fig. 23 - Current Ratings Characteristics Fig. 24 - Current Ratings Characteristics
Fig. 26 - Forward Power Loss CharacteristicsFig. 25 - Forward Power Loss Characteristics
10
100
1000
10000
0 0.5 1 1.5 2 2.5 3 3.5 4
T = 25°C
J
Instantaneous Forward C urre nt (A)
Instantaneous For ward Vo ltage (V)
T = 150°C
J
IRK.196.. Series
Per Ju nction
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10 100
Square Wave Pulse Duration (s)
thJC
Transient Thermal Impedance Z (K/W)
IRK.196.. Series
Per Junction
Steady State Value
R = 0.20 K/W
(DC Operation)
thJC
80
90
100
110
120
130
140
150
0 50 100 150 200 250
30°60°90°120°180°
Max im u m Al low ab l e C as e T em p er atu re (°C)
Conduction Angle
Average Forward Curr ent (A)
IRK.236.. Series
R (DC) = 0 .17 K/W
thJC
80
90
100
110
120
130
140
150
0 50 100 150 200 250 300 350 400
DC
30°60°90°
120°180°
M a x imum A llowabl e Ca s e Te mp era tu r e ( °C)
Cond uction Per iod
Average Fo rward Current (A)
IRK.236.. Series
R (DC) = 0.17 K /W
thJC
0
50
100
150
200
250
300
0 50 100 150 200 250
Average Forward Current (A)
RMS Limit
Maximum Average F orward Power Loss (W)
Conduction An gl e
180°
120°
90°
60°
30°
IRK.236.. Series
T = 150°C
Per Ju ncti on
J
0
50
100
150
200
250
300
350
400
0 50 100 150 200 250 300 350 400
DC
180°
120°
90°
60°
30°
Average Forward Current (A)
RMS Limit
Maximum Average F orward Power Loss (W)
Cond uction P eriod
IRK.236.. Series
T = 150°C
Per Ju nction
J
IRK.165, .166, .195, .196, .235, .236 Series
10
I27096 rev. B 10/99
www.irf.com
Fig. 27 - Maximum Non-Repetitive Surge Current Fig. 28 - Maximum Non-Repetitive Surge Current
Fig. 29 - Forward Power Loss Characteristics
Fig. 30 - Forward Power Loss Characteristics
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
1 10 100
Peak Half Si ne Wave Fo rward Curre nt (A )
Nu mber Of Equal Amplitude Half Cycle Current Pulses (N)
IRK.236.. Series
Per Junction
Initial T = 150°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At An y Rated Loa d Cond it io n And Wi th
Rated V A ppl ied F ollowin g Surge.
RRM J
0 25 50 75 100 125 150
M axim u m Al low ab le Am b ient T emp era t u re (°C)
R = 0.02 K/W - Delta R
thSA
0.08 K/W
0.2 K/W
0.4 K/W
0.7 K/W
0.12 K/W
0.3 K/W
0
50
100
150
200
250
300
350
400
450
500
0
50
100 150 200 250 300 350
To t al RMS Output Current (A )
Maxim um Total Forward Power Loss (W)
180°
(Sine)
DC
IRK.236.. Series
Per J unct ion
T = 150°C
J
0 25 50 75 100 125 150
Maximum A llow able Ambient Temperature (°C)
R = 0.02 K/W - Delta R
thSA
0.04 K/W
0.1 K/W
0.08 K/W
0.2 K/W
0.16 K/W
0.7 K/W
0.5 K/W
0.3 K/W
0
200
400
600
800
1000
1200
0 100 200 300 400 500
Total Output C urrent (A)
Maximum To ta l Power Loss (W)
180°
(Sine)
180°
(Rect)
2 x IRK.236.. Series
Single Phase Bridge
Connected
T = 150°C
J
1000
2000
3000
4000
5000
6000
7000
0.01 0.1 1
P eak Hal f Si ne W ave Fo rward Cu rrent (A)
Pu lse Train Duratio n (s)
Ma ximum Non Repet it ive S urge C urre nt
IRK.236.. Series
Per Ju ncti o n
Initia l T = 150°C
No Voltage Reapplied
Rated V Reapplied
RRM
Versus Pulse Train Duration.
J
IRK.165, .166, .195, .196, .235, .236 Series
11
I27096 rev. B 10/99
www.irf.com
Fig. 31 - Forward Power Loss Characteristics
Fig. 32 - Forward Voltage Drop Characteristics Fig. 33 - Thermal Impedance ZthJC Characteristic
0 25 50 75 100 125 150
M a xi mu m Allow a ble Amb ien t T emp er a t u r e (°C)
R = 0.02 K/W - Delta R
thSA
0.04 K/W
0.08 K/W
0.7 K/W
0.12 K/W
0.2 K/W
0.3 K/W
0
200
400
600
800
1000
1200
1400
1600
1800
0 100 200 300 400 500 600 700
Tota l O u tp u t Cu r r en t (A )
Maximum Tot al P owe r Loss (W)
120°
(Rect)
3 x IRK.236.. Series
Three Phase Bridge
Connected
T = 150°C
J
1
10
100
1000
10000
00.511.522.533.54
T = 25°C
J
Instantaneous Forward Current (A )
Instantaneo us Fo rward Voltage (V)
T = 150°C
J
IRK.236.. Ser ies
Per Junction
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10 100
Square Wave P ulse Duration ( s)
thJC
Tr ansient Therma l Imp edance Z ( K/W)
Steady State Value
R = 0 .1 7 K/W
(DC Operation)
IRK .236.. Se ries
Per Ju nct io n
thJC
