
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 www.baylinear.com
Surface Mount Zero Bias Schottky
B8250
Detector Diodes
Series
Pin Connection
Ordering Information
Package Part No.
SOT-26 B850XK6 -X.X
Description
The B-8250 line of zero bias Schottky detector diodes by
Bay Linear have been engineered for use in small signal
(Pin<-20 dBm) applications at frequencies below 2.0
GHz. The ideal applications are for RF/ID and RF Tags
where primary (DC bias) power is not available.
At Bay Linear, our commitment to quality components
gives our customers a reliable second source of products,
which are tested at a more stringent level than our
competitors. Manufacturing techniques assure that when
two diodes are mounted into a single package they are
taken from adjacent sites on the wafer.
In cross referenced parts, we guarantee pin to pin
compatibility. The various package configurations
available provide a low cost solution to a wide variety of
design problems.
Features
• Surface Mount SOT-23 3 Pin Packages
• SOT-143 Packages 4 Pin Packages
• Miniature SOT-323/363 3 pin and 6 pin
• High Detection Sensitivity:
up to 50mV/µW at 915 MHz
• Low Flicker Noise: -165 dBV/Hz at 100Hz
• Low reverse leakage
• Matched Diodes
• High Thermal Conductivity for greater Power
Bay Linear
Inspire the Linear Power
Pin Connections and
Package Marking
Notes:
1. Package marking provides
orientation and identification
2. See “Electrical Specifications”
for appropriate package marking
3
1
2
4
5
6
C4Z
3
1
2
4
5
6
C4ZC4Z

Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 www.baylinear.com
B8250
Equivalent Linear Circuit Model
RS=series resistance (see Table of SPICE parameters)
CJ = junction capacitance (see Table of SPICE parameters)
RJ = 8.33 X 10-5nT
where
Ib = externally applied bias current in amps
Is = saturation current (see table of SPICE parameters)
T = temperature, °K
n = ideality factor (see table of SPICE parameters)
SOT-23/SOT-143 Package
Lead Code Identification
(top view)
SINGLE SERIES
UNCONNECTED
3
12
2
3
1
4
PAIR
3
12
3
12
B 8255
B 8250 B 8252
SERIES
SOT-323 Package Lead
Code Identification
(top view)
SINGLE
3
12
3
12
SOT-23 Package 6 Lead
Code Identification
(top view)
UNCONNECTED
TRIO
BRIDGE
QUAD
1
3
56
2
4
1
3
56
2
4
SOT-23 Package 6 Lead
Code Identification
(top view)
UNCONNECTED
TRIO
BRIDGE
QUAD
1
3
56
2
4
1
3
56
2
4
B 8256 B 8254
R
j
C
j
R
S
R
j
C
j
R
S
Parameter Units B 825X
B
V
V 5.0
C
JO
pF 0.175
E
G
eV 0.68
I
BV
A 2.9 E-4
I
S
A 2.9 E-6
N 1.03
R
S
Ω 26
PB (VJ) V 0.350
PT(XT1) 1.95
M 0.49
SPICE PARAMETER