SILICON PIN DIODES
Plastic package Surface Mount attenuating silicon PIN diodes
PLASTIC PACKAGE SURFACE MOUNT ATTENUATING
SILICON PIN DIODES
Description
TEMEX uses its proprietary technology to manufacture its Silicon PIN diodes in plastic package.
This product family is designed for a low cost, medium to high volume market that may be supplied
in tape and reel for automated pick and place assembly on surface mount circuit boards.
The use of this technology eliminates wire bonding on to the chips.
Applications
Typical applications include variable RF attenuators and AGC (Automatic Gain Control) circuits,
from MHz to several GHz.
The attenuating Pin diode uses properties of variation of forward series resistance versus the DC
forward bias current. In order to obtain the best dynamic range, a single diode attenuator may be used
in series or shunt configuration or designed as a multiple diode circuit (T or p circuit), where the device
may be matched through the attenuation range.
Note:
To reduce the distortion, it is necessary to verify and design with the following formula:
Î
HF
πτ
l
I
DC
F << 1
Î
HF
:
RF peak current (A)
Diode minority carrier lifetime (s)
DC bias current (A)
Application frequency (Hz)
τ
l
:
I
DC
:
F
:
Typical performance curve
R
SF
(Ω)
1000
Typical series resistance versus forward current
100
10
DH40144
DH40225
DH40141
1
0.1
12-8
Vol. 1
1
I
F
(mA)
10
SALES OFFICES: VISIT OUR WEB SITE AT
http://www.temex.com
SILICON PIN DIODES
Plastic package Surface Mount attenuating silicon PIN diodes
Electrical characteristics at 25° C
Electrical
Parameters
Test conditions
I Zone
thickness
(1)
Forward series
resistance Rsf (Ω)
F = 120 MHz
I
F
= 0.1 mA
I
F
= 1 mA
I
F
= 10 mA
max
13
7
13
Junction
capacitance
Cj
(2)
F = 1 MHz
pF
typ.
0.05
0.10
0.10
max
0.10
0.30
0.30
Reverse
current
I
R
V
R
= 100 V
µA
max
10
10
10
Carrier
lifetime
τ
I
I
F
= 10 mA
I
R
= 6 mA
µs
typ.
2.5
5.0
7.0
µm
Type
DH40141
DH40144
DH40225
typ.
140
140
220
min.
400
200
400
max min. max min.
800
50
100
6.5
400
25
50
3.5
800
50
100
6.5
(1) Other I zone thicknesses on request
(2) Other capacitance values on request (measured at 50 V)
Temperature ranges:
Operating junction (Tj) :
Storage
:
- 55° C to + 125° C
- 65° C to + 150° C
Packages
SOD323
Packages
SOT23
SOT143
DH40141
DH40144
DH40225
DH40141-60
DH40144-60
DH40225-60
DH40141-51
DH40144-51
DH40225-51
DH40141-70
DH40144-70
DH40225-70
(1) Other configuration available on request.
How to order?
DH40141
Diode type
-
51
Package
information
51: single SOT23
53: dual common
cathode SOT23
54: dual common
anode SOT23
60: single SOD323
70: dual SOT143
87: SOT323
T3
Conditioning
T3: 3000 pieces
tape & reel
T10: 10000 pieces
tape & reel
blank: bulk
SALES OFFICES: VISIT OUR WEB SITE AT
http://www.temex.com
12-9
Vol. 1
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