Silicon Switching Diode Series
1N6642UB
Features
•
JAN, JANTX, JANTXV and JANS qualification is available
per MIL-PRF-19500/578. (See part nomenclature
for all available options.)
Surface mount equivalent of popular JEDEC registered
1N6642 number.
Very low capacitance.
Very fast switching speeds with minimal reverse recovery times.
Unidirectional as well as doubler, common anode and common
cathode polarities are available.
RoHS compliant by design.
•
•
•
•
•
Description
This 1N6642UB switching/signal diode features ceramic bodied construction for military grade products
per MIL-PRF-19500/578. This small low capacitance diode, with very fast switching speeds, is featured in
a surface mount UB package with various polarities available.
Applications
•
•
•
•
High frequency data lines.
Low-profile ceramic surface mount package (see package illustration).
RS-232 & RS-422 interface networks.
Ethernet 10 Base T, LAN & computers.
Maximum Ratings @ 25 °C
Parameters/Test Conditions
Junction and Storage Temperature
Thermal Resistance Junction-to-Ambient (1)
Thermal Resistance Junction-to-Solder Pad (1)
Maximum Breakdown Voltage
Working Peak Reverse Voltage
Average Rectified Current @ TA = 75 °C (2)
Non-Repetitive Sinusoidal Surge Current (tp = 8.3 ms)
NOTES:
1. See Figure 2 for thermal impedance curves.
2. See Figure 1 for derating.
Symbol
TJ & TSTG
R
θJA
R
θJSP
V(BR)
VRWM
IO
IFSM
Value
-65 to +200
325
100
100
75
300
2.5
Unit
°C
°C/W
°C/W
V
V
mA
A (pk)
Revision Date: 3/17/2014
1
1N6642UB
Graphs
Sinewave Operation 50% Duty Cycle
R
ΘJA(PCB)
= 325
°
C/W
TA (
°
C) (Ambient)
Note: Max Finish-Alloy Temp = 175°C
Maximum Thermal
Current Derating
FIGURE 1. Temperature -
Impedance
Family 1N6638-42UB Solder Pads Tsp = 25C
1000
100
Theta (C/W)
10
1
0.000001
0.00001
0.0001
0.001
0.01
0.1
1
10
100
Time (s)
FIGURE 2. Thermal Impedance
Electrical Specifications @ +25 ºC (Unless Otherwise Specified)
Forward
Voltage
VF1 @
Forward
Voltage
VF2 @
Reverse
Recovery
Time
trr
(Note 1)
ns
5
Reverse
Recovery
Time
Vfr
(Note 2)
ns
20
Reverse
Reverse
Reverse
Reverse
Current
Current
Capacitance Capacitance
Current
Current
IR3 @ 20 V IR4 @ 75 V
(Note 3)
(Note 4)
IR1 @ 20 V IR2 @ 75 V
TA = 150 °C TA = 150 °C
nA
25
μA
0.5
μA
35
μA
100
pF
5.0
pF
2.8
IF = 10 mA IF = 100 mA
V
0.8
V
1.2
Note 1:
Note 2:
2
IF = IR = 10 mA, RL = 100 ohms +5 %.
IF = 200 mA.
Note 3: VR = 0 V, f = 1 MHz, VSIG = 50 mV (pk to pk).
Note 4: VR = 1.5 V, f = 1 MHz, VSIG = 50 mV (pk to pk).
TEL: 603-641-SEMI (7364) • metelics-sales@aeroflex.com • www.aeroflex.com/metelics
Revision Date: 3/17/2014
1N6642UB
Outline Drawing
UB
NOTES:
1.
2.
3.
4.
5.
Dimensions are in inches. Millimeters are given for general information only.
Ceramic package only.
Hatched areas on package denote metallized areas.
Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Pad 4 = Shielding connected to the lid.
In accordance with ASME Y14.5M, diameters are equivalent to
ɸx
symbology.
Mechanical & Packaging
CASE: Ceramic
THERMALS: Gold plating over nickel under plate.
TAPE & REEL option: Standard per EIA-4180. Consult factory for quantities.
WEIGHT: < 0.04 Grams.
Symbols & Definitions
Symbol
IR
IO
trr
VF
VR
VRWM
Definitions
Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature.
Average Rectified Forward Current: The output current averaged over a full cycle with a 50 Hz or 60 Hz sine-wave
input and a 180 degree conduction angle.
Reverse Recovery Time: The time interval between the instant the current passes through zero when changing
from the forward direction to the reverse direction and a specified decay point after a peak reverse current occurs.
Forward Voltage: The forward voltage the device will exhibit at a specified current (typically shown as maximum
value).
Reverse Voltage: The reverse voltage de value, no alternating component.
Working Peak Reverse Voltage: The maximum peak voltage that can be applied over the operating temperature
range excluding all transient voltages (ref JESD282-B). Also sometimes known as PIV.
TEL: 603-641-SEMI (7364) • metelics-sales@aeroflex.com • www.aeroflex.com/metelics
Revision Date: 3/17/2014
3
1N6642UB
Parts Nomenclature
JAN 1N6642
Reliability Level
JAN = JAN level
JANTX = JANTX level
JANTXV = JANTXV level
Blank = Commercial grade
JEDEC type number
(see Electrical Characteristics table)
UB
CA
Polarity
CA = Common Anode
CC = Common Cathode
D = Doubler
Blank = Unidirectional
Surface Mount package
1
1N6642UBCA
2
Unidirectional
Common Anode
1
1N6642UBD
2
Doubler
3
2
Common Cathode
1
1N6642UBCC
3
1
2
1N46642UB
3
3
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Fax: (603)-641-3500
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herein at any time without notice. Consult Aeroflex or an authorized sales representative to
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Revision Date: 3/17/2014
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