HSCH-9101/9201/9251
GaAs Beam Lead Schottky Barrier Diodes
Data Sheet
Description
The HSCH-9101 single, the HSCH-9201 series pair, and
the HSCH-9251 anti-parallel pair are advanced gallium
arsenide Schottky barrier diodes. These devices are
fabricated utilizing molecular beam epitaxy (MBE)
manufacturing techniques and feature rugged
construction and consistent electrical performance. A
polyimide coating provides scratch protection and
resistance to contamination.
Features
• Gold tri-metal system for improved reliability
• Low capacitance
• Low series resistance
• High cutoff frequency
• Polyimide passivation
• Multiple configurations
HSCH-9101
280 (11.0)
200 (7.8)
9 (0.4)
7 (0.3)
125 (4.9)
115 (4.5)
270 (10.6)
190 (7.5)
636 (25.0)
626 (24.6)
L = 0.1 nH
183 (7.2)
178 (7.0)
60 (2.4)
50 (2.0)
HSCH-9201
280 (11.0)
200 (7.8)
9 (0.4)
7 (0.3)
115 (4.5)
105 (4.1)
346 (13.6)
266 (10.5)
712 (28.0)
702 (27.6)
L = 0.1 nH
183 (7.2)
178 (7.0)
60 (2.4)
50 (2.0)
HSCH-9251 Junction Side Up
290±50 (11.0)
200 (7.8)
9 (0.4)
7 (0.3)
125 (4.9)
115 (4.5)
280±50 (10.6)
190 (7.5)
712 (28.0)
702 (27.6)
L = 0.1 nH DIMENSIONS IN µm (1/1000 inch)
183 (7.2)
178 (7.0)
60 (2.4)
50 (2.0)
2
Applications
This line of Schottky diodes is optimized for use in
mixer applications at millimeter wave frequencies.
Some suggested mixer types are single ended and
single balanced for the single and series pair. The anti-
parallel pair is ideal for harmonic mixers.
Assembly Techniques
Diodes are ESD sensitive. ESD preventive measures
must be em ployed in all aspects of storage, handling,
and assembly.
Diode ESD precautions, handling considerations, and
bonding methods are critical factors in successful
diode performance and reliability.
Avago application note #55, “Beam Lead Diode
Bonding and Handling Procedures” provides basic
information on these subjects.
Maximum Ratings
Power Dissipation at TLEAD = 25°C........................... 75 mW per junction
Measured in an infinite heat sink derated linearly
to zero at maximum rated temperature
Operating Temperature .................................................... -65°C to +150°C
Storage Temperature ........................................................ -65°C to +150°C
Mounting Temperature ........................................... 235°C for 10 seconds
Minimum Lead Strength ................................................................. 6 grams
Electrical Specifications at TA = 25°C
Part Number
Symbol Parameters and HSCH-9101 HSCH-9201 HSCH-9251
Test Conditions Units Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
Cj[1] Junction Capacitance pF 0.040 0.050 0.040 0.050 0.040
VR = 0 V, f = 1 MHz
∆Cj[1] Junction Capacitance Variation pF 0.005 0.010
VR = 0 V, f = 1 MHz
RS[2] Series Resistance W 6 6 6
VF1 Forward Voltage mV 700 800 700 800 700 800
IF = 1 mA
VF10 Forward Voltage mV 800 850 800 850 800 850
IF = 10 mA
∆VFForward Voltage Variation mV 15 15
IF = 1 mA and 10 mA
VBR Reverse Breakdown Voltage V 4.5 4.5
VR = VBR measure IR ≤ 10 µA
(per junction)
Notes:
1. Junction capacitance is determined by measuring total device capacitance and subtracting the calculated parasitic capacitance (0.035 pF).
2. Series resistance is determined by measuring the dynamic resistance and subtracting the calculated junction resistance of 6Ω.
100
10
1
0.1
0.01
FORWARD VOLTAGE (V)
Figure 1. Typical Forward Characteristics for
HSCH-9101, HSCH-9201, and HSCH-9251.
FORWARD CURRENT (mA)
0 0.2 0.4 0.6 1.21.00.8
+125°C
+25°C
-55°C
Figure 2. Typical Noise Figure and I.F.
Impedance vs. Local Oscillator Power, for
HSCH-9101 and HSCH-9201.
NOISE FIGURE (dB) IF IMPEDANCE (Ω)
0
6
LOCAL OSCILLATOR POWER (dBm)
810
300
8
7
2
100
200
14
46 12
Z
IF
NF
SPICE Parameters
Parameter Units HSCH-9XXX
BVV5
CJ0 pF 0.04
EGeV 1.43
IBV A 10E-5
ISA 1.6 x 10E-13
N 1.20
RSΩ5
PBV 0.7
PT2
M 0.5
Typical Parameters
This data sheet contains a variety of typical and guaranteed performance data. The information supplied should not be interpreted as a complete list of circuit specifications.
In this data sheet the term typical refers to the 50th percentile performance. For additional information contact your local Avago Technologies sales representative.
For product information and a complete list of distributors, please go to our web site:
www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Pte.
in the United States and other countries.
Data subject to change. Copyright © 2006 Avago Technologies Pte. All rights reserved.
Obsoletes 5965-8851E
5988-1897EN August 2, 2006
