Surface Mount
PIN Diodes
Features
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MA4P1250, MA4P1450 SMQ™
V3.00
Non-Rollable MELF Design
Hermetically Sealed
Low Loss, Low Distortion
Passivated PIN Diode Chips
Full Face Chip Bonds
Non-Magnetic Package
Pick and Place Compatibility
Size, Inches (mm)
Model No.
MA4P1250
MA4P1450
Case
Style
1072
1091
A(sq.)
Min./Max.
0.080/0.095
(2.03/2.41)
0.138/0.155
(3.51/3.94)
B
Min./Max.
0.115/0.135
(2.92/3.43)
0.180/0.200
(4.57/5/08)
C
Min./Max.
0.008/0.030
(0.203/0.762)
Description
The MA4P1250 and MA4P1450 are square surface mount-
able PIN diodes in a non-rollable, metal electrode lead-
less faced (MELF) package. They incorporate passivated
PIN diode chips that are full face bonded to refractory
metal pins. These parts utilize M/A-COM’s HIPAX tech-
nology in a low inductance ceramic package with no rib-
bons or whisker wires. The package is hermetically
sealed at temperatures exceeding 300˚C.
Applications
The MA4P1250 is designed for use as a low loss switch-
ing element from HF through UHF. Its high power rating
allows performance in antenna switch elements at RF
power levels greater than 100 watts CW. It is designed to
meet the low distortion requirements of mobile radios.
The MA4P1450 is a higher power diode. It has lower dis-
tortion at RF CW power greater than 10 watts and can
dissipate 7.5 watts.
FULL FACE
BOND
PASSIVATED
PIN DIODE CHIP
Designed for Automated Assembly
These surface mount PIN diodes are designed for high
volume tape and reel assembly. The square package
eases automatic pick and place indexing and assembly.
The parallel flat surfaces are suitable for key jaw or vac-
uum pickup techniques. All solderable surfaces are tin
plated and compatible with reflow and vapor phase sol-
dering methods.
CERAMIC
SOLDERABLE
SURFACES
Environmental Capability
These HIPAX diodes are applicable for use in industrial
and military applications. They can meet the environmen-
tal requirements of MIL-STD-750 and MIL-STD-202 or be
screened to JAN-TX and other high reliability standards.
SMQ is a trademark of M/A-COM, Inc.
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
s
1
Asia/Pacific: Tel. +81 3 3263 8761
Fax +81 3 3263 8769
s
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
Surface Mount PIN Diodes
Electrical Specifications
@ 25°C
(MA4P1250)
Parameter
Series Resistance
Capacitance
Parallel Resistance
Carrier Lifetime
Forward Bias Harmonic
Distortion (R2a, R3a)
a
a
Reverse Bias Harmonic
Distortion (R2a, R3a)
a
a
Voltage Rating
Forward Voltage
Minimum Typical Maximum
—
—
5K
2.0
80
0.5
0.9
10 K
4.0
90
0.75
1.2
—
—
—
Unit
Ω
pF
Ω
µs
dBc
Condition
F = 100 MHz
I = 50 mA
F = 1 MHz
V = 50 V
F = 100 MHz
V=0V
I = 10 mA
F = 100 MHz
P = 30W
I = 50 mA
F = 100 MHz
P = 0 dBm
V=0V
I = 10 µA
I = 50 mA
MA4P1250, MA4P1450 SMQ™
V3.00
Absolute Maximum Ratings
@ 25°C
Parameter
Voltage
Operating Temperature
Storage Temperature
Power Dissipation
Free Air
Contact Surfaces @ +25°C
Absolute Maximum
50 Volts
-65°C to + 175°C
-65°C to +175°C
1.5 Watts
4.0 Watts
60
70
dBc
—
50
—
—
1.0
—
—
V
V
* Available only in case style 1072.
CARRIER LIFETIME vs FORWARD CURRENT
(MA4P1250)
Typical Performance Curves
CAPACITANCE vs FREQUENCY (MA4P1250)
SERIES RESISTANCE AT 100 MHZ vs FORWARD CURRENT
(MA4P1250)
PARALLEL RESISTANCE vs FREQUENCY AND
REVERSE BIAS (MA4P1250)
Specifications Subject to Change Without Notice.
2
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
s
M/A-COM, Inc.
Asia/Pacific: Tel. +81 3 3263 8761
Fax +81 3 3263 8769
s
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
Surface Mount PIN Diodes
MA4P1450 PIN Diodes for High Volume Applications
Electrical Specifications
@ 25°C
Parameter
Series Resistance
Capacitance
Parallel Resistance
Carrier Lifetime
Forward Bias Harmonic
Distortion (R2a, R3a)
a
a
Reverse Bias Harmonic
Distortion (R2a, R3a)
a
a
Voltage Rating
Forward Voltage
Thermal Resistance
Junction Case R
TH(I-C)
Minimum Typical Maximum
—
—
5K
4
80
0.5
1.8
10 K
6
90
0.75
2.5
—
—
—
Unit
Ohms
pF
ø
µS
dBc
Condition
I
F
= 50 mA
F = 100 MHz
F = 1 MHz
V
R
= 0
F = 100 MHz
V
R
= 0
I
F
= 10 mA
F = 100 MHz
P = 30W
I
F
= 100 mA
F = 100 MHz
P = 0 dBm
V = 0 Volts
I
V
= 10 mA
100 mA
MA4P1250, MA4P1450 SMQ™
V3.00
Absolute Maximum Ratings
@ 25°C
Parameter
Operating Temperature
Storage Temperature
DC Reverse Voltage
Power Dissipation
Free Air
Contact Surfaces @ +25°C
Absolute Maximum
-65°C to + 175°C
-65°C to +175°C
50 Volts
1.5 Watts
4.0 Watts
60
70
—
dBc
50
1.0
—
—
—
12.5
—
—
15
Volts
—
°C/Watt —
Note:
Available only in case style 1091.
Typical Performance Curves
SERIES RESISTANCE AT 100 MHZ vs FORWARD
CURRENT (MA4P1450)
SERIES RESISTANCE (OHMS)
10000
1000
100
10
1
0.1
0.01
0.001
0.01
0.1
1
10
100
1000
1
1
10
100
1000
FREQUENCY (MHZ)
FORWARD CURRENT (mA)
1000
5V
Rp (KOHMS)
100
1V
10
0,1V
2V
10V
50V
PARALLEL RESISTANCE vs FREQUENCY AND
REVERSE BIAS (MA4P1450)
CAPACITANCE (pF)
1000
100
10
1
1
CAPACITANCE vs FREQUENCY (MA4P1450)
0V
1V
2V
50V
10V
10
FREQUENCY
100
1000
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
s
3
Asia/Pacific: Tel. +81 3 3263 8761
Fax +81 3 3263 8769
s
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
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