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| 型号： | MJF18004 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 功率晶体管 |
| 英文描述： | POWER TRANSISTOR |
| 中文描述： | 5 A, 450 V, NPN, Si, POWER TRANSISTOR, TO-220AB |
| 封装： | CASE 221D-03, ISOLATED TO-220, FULL PACK-3 |
| 文件页数： | 9/10页 |
| 文件大小： | 422K |
| 代理商： | MJF18004 |
9
Motorola Bipolar Power Transistor Device Data
MOUNTED
FULLY ISOLATED
PACKAGE
LEADS
HEATSINK
0.110
″
MIN
Figure 22a. Screw or Clip Mounting Position
for Isolation Test Number 1
* Measurement made between leads and heatsink with all leads shorted together
CLIP
MOUNTED
FULLY ISOLATED
PACKAGE
LEADS
HEATSINK
CLIP
0.107
″
MIN
MOUNTED
FULLY ISOLATED
PACKAGE
LEADS
HEATSINK
0.107
″
MIN
Figure 22b. Clip Mounting Position
for Isolation Test Number 2
Figure 22c. Screw Mounting Position
for Isolation Test Number 3
TEST CONDITIONS FOR ISOLATION TESTS*
4–40 SCREW
PLAIN WASHER
HEATSINK
COMPRESSION WASHER
NUT
CLIP
HEATSINK
Laboratory tests on a limited number of samples indicate, when using the screw and compression washer mounting technique, a screw
torque of 6 to 8 in
.
lbs is sufficient to provide maximum power dissipation capability. The compression washer helps to maintain a
constant pressure on the package over time and during large temperature excursions.
Destructive laboratory tests show that using a hex head 4–40 screw, without washers, and applying a torque in excess of 20 in
.
lbs will
cause the plastic to crack around the mounting hole, resulting in a loss of isolation capability.
Additional tests on slotted 4–40 screws indicate that the screw slot fails between 15 to 20 in
.
lbs without adversely affecting the pack-
age. However, in order to positively ensure the package integrity of the fully isolated device, Motorola does not recommend exceeding 10
in
.
lbs of mounting torque under any mounting conditions.
Figure 23. Typical Mounting Techniques
for Isolated Package
Figure 23a. Screw–Mounted
Figure 23b. Clip–Mounted
MOUNTING INFORMATION**
**For more information about mounting power semiconductors see Application Note AN1040.
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different
applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does
not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in
systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of
the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such
unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
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