1N6638, 1N6642, 1N6643
Axial Leaded Hermetically Sealed
Switching Diodes
HIGH-RELIABILITY PRODUCTS
Features
•
•
•
•
Low reverse leakage current
Hermetically sealed in fused metal oxide
Good thermal shock resistance
Low forward voltage drop
Quick reference data
V
BR
= 75 - 150V
t
rr
= 4.5 - 6.0ns
I
o
= 300mA, T
A
= 75
o
C
V
F
= 1.1 -1.2V
These products are qualified to MIL-PRF-19500/578.
They can be supplied fully released as JAN, JANTX, JANTXV
and JANS.
Electrical specifications @ T
A
= 25
o
C unless otherwise specified.
Absolute Maximum Rating
Parameter
Breakdown Voltage
Working Reverse Voltage
Operating Current
@75 °C , lead length 0.375”
Non-Repetitive Surge Current
(tp = 8.3ms, @25 °C)
Storage Temperature Range
Symbol 1N6638 1N6642
V
BR
V
RWM
I
O
I
FSM
T
STG
150
125
300
2.5
100
75
300
2.5
-65 to +175
1N6643
75
50
300
2.5
Units
V
V
mA
A
O
C
1N6638, 1N6642, 1N6643
Final Datasheet
9/27/2016
Rev 1.0
www.semtech.com
1 of 4
Semtech
Proprietary & Confidential
Electrical Characteristics (T=25
O
C unless otherwise specified)
Parameter
Forward Voltage Drop max. at
10mA, T
j
= 25 °C
Forward Voltage Drop max.
T
j
= 25 °C
Reverse Current max.
I
R1
@ V
R
= 20V
I
R2
@ V
R
= V
RWM
I
R3
@ V
R
= 20V, T
A
= 150 °C
I
R4
@ V
R
= V
RWM
, T
A
= 150 °C
Foward Recovery Time max.
I
F
= 200mA
Reverse Recovery Time max.
I
RM
= I
F
= 10mA
Junction Capacitance typ.
V
R
= 0V
Symbol
V
F1
V
F2
I
R1
I
R2
I
R3
I
R4
t
fr
t
rr
C
T 1
1N6638
0.8
1.1 @ I
F
= 200mA
35
500
50
100
20
4.5
2.5
1N6642
0.8
1.2 @ I
F
= 100mA
25
500
50
100
20
5.0
5.0
1N6643
0.8
1.2 @ I
F
= 100mA
50
500
75
100
20
6.0
5.0
Units
V
V
nA
nA
uA
uA
ns
ns
pF
Thermal Characteristics
Parameter
Thermal Resistance-Junction to Lead
Lead length = 0.375”
Symbol
R
θJ L
1N6638
1N6642
150
1N6643
Units
°C/W
1N6638, 1N6642, 1N6643
Final Datasheet
9/27/2016
Rev 1.0
www.semtech.com
2 of 4
Semtech
Proprietary & Confidential
IMPORTANT NOTICE
Information relating to this product and the application or design described herein is believed to be reliable, however such information is provided as a
guide only and Semtech assumes no liability for any errors in this document, or for the application or design described herein. Semtech reserves the right
to make changes to the product or this document at any time without notice. Buyers should obtain the latest relevant information before placing orders
and should verify that such information is current and complete. Semtech warrants performance of its products to the specifications applicable at the time
of sale, and all sales are made in accordance with Semtech’s standard terms and conditions of sale.
SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES
OR SYSTEMS, OR IN NUCLEAR APPLICATIONS IN WHICH THE FAILURE COULD BE REASONABLY EXPECTED TO RESULT IN PERSONAL INJURY, LOSS OF LIFE
OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. INCLUSION OF SEMTECH PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN
SOLELY AT THE CUSTOMER’S OWN RISK. Should a customer purchase or use Semtech products for any such unauthorized application, the customer shall
indemnify and hold Semtech and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs damages and attorney
fees which could arise.
The Semtech name and logo are registered trademarks of the Semtech Corporation. All other trademarks and trade names mentioned may be marks and
names of Semtech or their respective companies. Semtech reserves the right to make changes to, or discontinue any products described in this document
without further notice. Semtech makes no warranty, representation or guarantee, express or implied, regarding the suitability of its products for any
particular purpose. All rights reserved.
© Semtech 2016
Contact Information
Semtech Corporation
200 Flynn Road, Camarillo, CA 93012
Phone: (805) 498-2111, Fax: (805) 498-3804
www.semtech.com
1N6638, 1N6642, 1N6643
Final Datasheet
9/27/2016
Rev 1.0
4 of 4
Semtech
Proprietary & Confidential
ARM技术
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
