Thermal Resistance

PACKAGE THERMAL RESISTANCE TABLE
PIN COMMON
TO SUBSTRATE
—
BOARD TYPE
θ JC
θ JA
(°C/W)
(°C/W)
3
3
35
35
Case
Case
TYPE
PACKAGE
CODE
Metal Can
K
TO-3 2L
TO-3 4L
Metal Can
H
TO-5
TO-39
TO-46
TO-52
40
15
80
N/A
150
150
440
360
—
Pin 3*
Pin 3*
Pin 3*
J8
J14
J16
J18
J20
J24
J28
30
25
25
20
15
10
7
110
95
85
75
70
65
55
—
—
—
—
—
—
D8
D14
D16
D18
D20
30
25
25
20
15
100
85
80
75
70
—
—
—
—
—
LCC 20L
40
100
—
CERDIP
Side Brazed
LCC
J
D
L
STYLE LEAD COUNT
Flat Pack Glass Sealed
W
W10
W14
40
40
170
160
—
—
Flat Pack Bottom Brazed
WB
WB10
WB14
40
40
160
150
—
—
Plastic TO
P
TO-3P 3L
(TO-247)
1.5
45
Pin 2
Plastic TO
Z
TO-226 3L
(TO-92)
—
160
Pin 1 or 2
(By Device)
Plastic TO
T
T
T7
TO-220 3L
TO-220 5L
TO-220 7L
3
3
3
34
34
34
Pin 2
Pin 3
Pin 4
Plastic DD
M
Q
R
DD Pak 3L
DD Pak 5L
DD Pak 7L
3
3
3
34
34
34
Pin 2
Pin 3
Pin 4
Plastic PDIP 300mil
N8
N8
N8
45
50
100
150
Cu, 4 Layer
A42, 4 Layer
Plastic PDIP 300mil
N
N14, Cu
N16, Cu
N18, Cu
N20, Cu
N24, Cu
N28, Cu
33
34
29
28
27
30
70
70
65
62
60
59
4 Layer
4 Layer
4 Layer
4 Layer
4 Layer
4 Layer
Plastic SC70
SC6
SC8
SC6, 2 pin fused
SC8, 3 pin fused
—
—
270
270
Cu, Multilayer
Cu, Multilayer
Plastic SOT/TSOT
S3
S5
S6
TS8
S3
S5
S6
TS8
100
50
51
47
202
215
192
195
A42, 4 Layer Pin 2
Cu, 4 Layer, Pin 2
Cu, 4 Layer, Pin 2
Cu, 4 Layer, Pin 2
Plastic SOT-223
ST
SOT-223
15
60 (est.) Pin 2
TYPE
PACKAGE
CODE
(°C/W)
(°C/W)
PIN COMMON
TO SUBSTRATE
—
BOARD TYPE
Plastic SO 150mil
S8
S8
S8
S8, 2 pin fused
S8, 3 pin fused
39
—
37
35
120
190
90
85
Cu, 4 Layer
A42, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
S
S14
S14
S16, 4 pin fused
S16
S16
37
—
22
30
—
88
160
65
80
150
Cu, 4 Layer
A42, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
A42, 4 Layer
S8E
S8E
5
33
Cu, 4 Layer
Plastic SO 300mil
SW
SW16
SW18
SW20
SW24
SW28
30
27
25
23
20
80
70
60
60
55
4 Layer
4 Layer
4 Layer
4 Layer
4 Layer
Plastic MSOP & Exposed MSOP
MS8
MS8
MS8
40
45
163
273
Cu, 4 Layer
A42, 4 Layer
MS8E
MS8E
5–10
35–40
Cu, 4 Layer
MS
MS10
MS12
MS16
MS16(12)
45
21
21
21
160
135
120
135
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
MSE
MSE10
MSE12
MSE16
MSE16(12)
5–10
5–10
5–10
5–10
35–40
35–40
35–40
35–40
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Plastic SSOP 5.3mm
G
G16
G20
G24
G28
G36
G44
40
30
25
25
25
25
110
90
88
80
70
70
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
SSOP Narrow 150mil
GN
GN16
GN16/ 4 pin fused
GN20
GN24
GN28
40
37
30
30
25
110
90
90
85
80
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
SSOP Wide 300mil
GW
GW36
GW44
20
17
65
60
Cu, 4 Layer
Cu, 4 Layer
Plastic TSSOP 4.4mm
F
F14
F20
F20, fused
17
20
18
100
90
80
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
FE
FE16
FE20
FE24
FE28
FE38
FE38(31)
10
10
10
5–10
5–10
5–10
38
38
33
30
28
28
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
Cu, 4 Layer
FW
FW48
—
82
Cu, 4 Layer
Plastic TSSOP 6.1mm
STYLE LEAD COUNT
θ JC
θ JA
1
PACKAGE THERMAL RESISTANCE TABLE
TYPE
PACKAGE
CODE
STYLE LEAD COUNT
θ JC
θ JA
(°C/W)
(°C/W)
PIN COMMON
TO SUBSTRATE
—
BOARD TYPE
Plastic DFN (Exposed Pad)
2×2
2×3
PIN COMMON
TO SUBSTRATE
—
BOARD TYPE
θ JC
θ JA
(°C/W)
(°C/W)
UD16,UD20
PD16,PD20
7.5
68
4 Layer
UDB
UDB10
5.0
137
4 Layer
3×4
UDC
PDC
UDC20,UDC20MA,UDC24
PDC20
6.8
52
4 Layer
3×5
UDD
UDD24
5.0
46
4 Layer
4×4
UF
PF
UF16,UF20,UF24,UF28
PF24,PF28
4.5
47
4 Layer
4×5
UFD
UFD20,UFD24,UFD28
3.4
43
4 Layer
4×6
UFE
UFE26,UFE38
4.0
38
4 Layer
PACKAGE
CODE
STYLE LEAD COUNT
3×3
UD
PD
3×2
TYPE
Plastic QFN (Exposed Pad)
DC
DC3,DC4,DC6,DC8
16.7
80.6
4 Layer
KC
KC8
17.2
88.5
4 Layer
DCB
DCB6,DCB8
9.6
64
4 Layer
3×2
DDB
DDB8,DDB10,DDB12
16.8
55
4 Layer
3×3
DD
KD
DD8,DD10,DD12,DD12MA
KD10
5.5
43
4 Layer
DE
UE
DE12
UE12
5.5
43
4 Layer
DE
KE
DE14,DE16
KE14
5.5
43
4 Layer
4×4
DF
DF12
3.7
42.6
4 Layer
4×7
UFF
UFF34,UFF36,UFF44
2.6
36.4
4 Layer
5×3
DHC
DHC16
3.2
41.7
4 Layer
4×9
UFH
UFH44
3.0
34
4 Layer
5×4
DHD
DHD16
4.3
41.7
4 Layer
5×5
UH
UH20,UH24,UH32,UH40
7.3
44
4 Layer
5×5
DH
DH16
3.0
34
4 Layer
5×6
UHE
UHE28,UHE36,UHE42
5.0
43
4 Layer
6×3
DJC
DJC22
4.3
31.8
4 Layer
5×7
UHF
UHF38
2.0
34
4 Layer
6x4
DJD
DJD24
4.3
37
4 Layer
5×8
UHG
UHG39/UHG52
3.8
36
4 Layer
7×4
DKD
DKD32,DKD24
7.5
34
4 Layer
5×9
UHH
UHH48,UHH56
2.0
31
4 Layer
6×6
UJ
UJ40
2.0
33
4 Layer
7×7
UK
UK44,UK48
3.0
34
4 Layer
7×8
UKG
WKG
UKG52
WKG52
2.0
31
4 Layer
7×9
UKH
WKH
UKH64
WKH56
2.0
29
4 Layer
9×9
UP
WP
UP64
WP64
1.0
29
4 Layer
4×3
CONSULT INDIVIDUAL DATA SHEETS FOR PRODUCT-SPECIFIC VALUES OR REQUIREMENTS.
NOTES:
1. These values are offered for general reference use.
2. High effective thermal conductivity board (JEDEC 4 Layer) was used for the thermal resistance calculations.
3. DFN and QFN package type dimensions are mm × mm.
4. All DFN/QFN are Cu leadframe.
5. The values for Plastic Packages are for copper material and non-fused type unless otherwise shown in the Style Lead Count column.
6. Construction variations, such as die size, material, leads fused internally to Die Attach Pad, and PCB layout, significantly influence thermal performance.
7. For θJC calculation, heat sink apply to pkg bottom (exposed pad package only)
8. Cu = Copper, A42 = Alloy 42.
*3-Lead Versions, Metal Can
2