M A COM MA4P1450, MA4P1250 Datasheet

Surface Mount
PIN Diodes

Features

●

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

Description

The MA4P1250 and MA4P1450 are square surface mount­able PIN diodes in a non-rollable, metal electrode lead­less 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 tech­nology in a low inductance ceramic package with no rib­bons or whisker wires. The package is hermetically
sealed at temperatures exceeding 300˚C.

Applications

The MA4P1250 is designed for use as a low loss switch­ing 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.

MA4P1250, MA4P1450 SMQ™

V3.00

Size, Inches (mm)

Case A(sq.) B C

Model No. Style Min./Max. Min./Max. Min./Max.
MA4P1250 1072

MA4P1450 1091

FULL FACE

BOND

0.080/0.095 0.115/0.135
(2.03/2.41) (2.92/3.43)

0.138/0.155 0.180/0.200
(3.51/3.94) (4.57/5/08)

PASSIVATED

PIN DIODE CHIP

0.008/0.030

(0.203/0.762)

The MA4P1450 is a higher power diode. It has lower dis­tortion at RF CW power greater than 10 watts and can
dissipate 7.5 watts.

Designed for Automated Assembly

These surface mount PIN diodes are designed for high
volume tape and reel assembly. The square package

CERAMIC

SOLDERABLE

SURFACES

eases automatic pick and place indexing and assembly.
The parallel flat surfaces are suitable for key jaw or vac­uum pickup techniques. All solderable surfaces are tin
plated and compatible with reflow and vapor phase sol­dering methods.

Envir onmental Capability

These HIPAX diodes are applicable for use in industrial
and military applications. They can meet the environmen­tal 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.

M/A-COM, Inc.

North America: Tel. [phone] ■ Asia/Pacific: Tel. [phone] ■ Europe: Tel. [phone]

Specifications Subject to Change Without Notice.

Fax [phone] Fax [phone] Fax [phone]

1

Surface Mount PIN Diodes MA4P1250, MA4P1450 SMQ™

V3.00

Electrical Specifications @ 25°C (MA4P1250)

Parameter Minimum Typical Maximum Unit Condition

Series Resistance — 0.5 0.75 Ω F = 100 MHz

I = 50 mA

Capacitance — 0.9 1.2 pF F = 1 MHz

V = 50 V

Parallel Resistance 5 K 10 K — Ω F = 100 MHz

V = 0 V
Carrier Lifetime 2.0 4.0 — µs I = 10 mA
Forward Bias Harmonic 80 90 — dBc F = 100 MHz

Distortion (R2a, R3a) P = 30W

Reverse Bias Harmonic 60 70 dBc — F = 100 MHz
Distortion (R2a, R3a) P = 0 dBm

Voltage Rating 50 — — V I = 10 µA
Forward Voltage — 1.0 — V I = 50 mA

* Available only in case style 1072.

a

a

a

a

I = 50 mA

V = 0 V

Typical Performance Curves

CAPACITANCE vs FREQUENCY (MA4P1250)

Absolute Maximum Ratings @ 25°C

Parameter Absolute Maximum
Voltage 50 Volts
Operating Temperature -65°C to + 175°C
Storage Temperature -65°C to +175°C
Power Dissipation

Free Air 1.5 Watts
Contact Surfaces @ +25°C 4.0 Watts

CARRIER LIFETIME vs FORWARD CURRENT

(MA4P1250)

SERIES RESISTANCE AT 100 MHZ vs FORWARD CURRENT

(MA4P1250)

Specifications Subject to Change Without Notice.

2

PARALLEL RESISTANCE vs FREQUENCY AND

REVERSE BIAS (MA4P1250)

M/A-COM, Inc.

North America: Tel. [phone] ■ Asia/Pacific: Tel. [phone] ■ Europe: Tel. [phone]

Fax [phone] Fax [phone] Fax [phone]