MA4SPS420 Datasheet, PDF (1/7 Pages) Tyco Electronics – SURMOUNT PIN Diodes

SURMOUNT^TM PIN Diodes
MA4SPS421, MA4SPS422
Features
• Surface Mount 100 µm I-Region Length Device
• No Wirebonds Required
• Rugged Silicon-Glass Construction
• Silicon Nitride Passivation
• Polymer Scratch Protection
• Low Parasitic Capacitance and Inductance
• Higher Average and Peak Power Handling
Description and Applications
This device is a Silicon-Glass PIN diode chip fabricated
with M/A-COM’s patented HMIC^TM process. This
device features two silicon pedestals embedded in a
low loss, low dispersion glass. The diode is formed
on the top of one pedestal and connections to the
backside of the device are facilitated by making the
pedestal sidewalls electrically conductive. Selective
backside metallization is applied producing a surface
mount device. This Vertical Topology provides for
Exceptional Heat Transfer. The topside is fully
encapsulated with silicon nitride and has an
additional polymer layer for scratch and impact
protection. These protective coatings prevent
damage to the junction and the anode air-bridge
during handling and assembly.
These packageless devices are suitable for usage in
Moderate Incident Power ( 10 W C.W. ) or Higher
Incident Peak Power ( 500 W ) Series, Shunt, or
Series-Shunt Switches. Smaller Parasitic
Inductance, 0.1to 0.2 nH, and Excellent RC
Constant ( 0.45 pS ), make the devices ideal for
Higher Frequency Switch Elements compared to
their Plastic Device Counterparts.
Dimensions
Dim
Inches
Millimeters
Min.
Max.
Min.
Max.
A
0.040
0.042
1.025
1.075
B
0.021
0.023
0.525
0.575
C
0.004
0.008
0.102
0.203
D
0.013
0.015
0.325
0.375
E
0.011
0.013
0.275
0.325
F
0.013
0.015
0.325
0.375
G
0.019
0.021
0.475
0.525
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
MA4SPS420 Series
V2
Absolute Maximum Ratings¹
@ TA = +25 °C (unless otherwise specified)
Parameter
Absolute Maximum
Forward Current
250 mA
Reverse Voltage
l -200 V l
Operating Temperature
-55 °C to +125 °C
Storage Temperature
-55 °C to +150 °C
Junction Temperature
+175 °C
Dissipated Power (RF & DC)
1.8 W
Mounting Temperature
+235 °C for 10 seconds
1. Operation of this device above any one of these parameters
may cause permanent damage.
Case Style ODS-1294
(MA4SPS421)
Case Style ODS-1295
(MA4SPS422)
A
C
B
A
C
G
G
D
E
F
D
E
F
Bottom Side Contacts are Circuit Side
1. Backside metal: 0.1 microns thick.
2. Shaded Areas Indicate Backside Ohmic Gold Contacts.
3. Both Devices have Same Outline Dimensions ( A to G ).
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Visit www.macom.com for additional data sheets and product information.