Notes

A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.

B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.

C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled

to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp

Page 2 of 3

Electrical Specifications at 25°C

Maximum Ratings

Pin Connections

SUM PORT

1

PORT 1 (0°)

4

PORT 2 (+90°)

6

GROUND

2,5

50 OHM TERM EXTERNAL

3

Operating Temperature

-55°C to 100°C

Storage Temperature

-55°C to 100°C

Power Input (as a splitter)

15W* max.

QCS-312+

2 Way-90

° 50Ω

1700 to 3100 MHz

Power Splitter/Combiner

REV. C

M151107

QCS-312+

ED-13415/1

AD/CP/AM

150923

Ultra-Small Ceramic LTCC

Features

• Low insertion loss, 0.5 dB typ.

• High isolation, 25 dB typ.

• Miniature size, 0.079”x0.049”x0.033”

• LTCC construction

• High power

Applications

• Balanced amplifiers

• Phase Shifter

• Modulators

• Attenuator

• DCS, PCS, UMTS

• ISM

• WiMAX

Electrical Schematic

*Derate linearly to 7W at 100°C ambient.

Permanent damage may occur if any of these limits are exceeded.

Demo Board MCL P/N: TB-489-312+

Suggested PCB Layout (PL-304)

Outline Drawing

A

BC

D

E

F

.079

.049

.033

.014

.012

.012

2.01

1.24

0.84

0.36

0.30

0.30

GH

J

K

wt

.026

.014

.039

.110

grams

0.66

0.36

1.00

2.80

.008

Outline Dimensions (

)

inch

mm

PCB Land Pattern

Suggested Layout,

Tolerance to be within

±.002

(See web site for detail)

Parameter

Frequency (MHz)

Min.

Typ.

Max.

Unit

Frequency

1700

3100

MHz

Insertion Loss

(Avg. Of Coupled Outputs) above 3 dB

1700-1850

0.4

0.6

dB

1850-1990

0.4

0.6

1990-2170

0.5

0.7

2170-2400

0.5

0.7

2400-2700

0.5

0.7

2700-3100

0.6

0.8

Isolation

1700-1850

17

23

dB

1850-1990

18

24

1990-2170

18

25

2170-2400

18

25

2400-2700

18

25

2700-3100

18

25

Phase Unbalance

1700-1850

2.0

7.0

Degree

1850-1990

2.0

7.0

1990-2170

2.0

7.0

2170-2400

2.0

7.0

2400-2700

2.0

7.0

2700-3100

2.0

7.0

Amplitude Unbalance

1700-1850

0.6

1.2

dB

1850-1990

0.2

0.7

1990-2170

0.5

1.0

2170-2400

0.5

1.0

2400-2700

0.5

1.0

2700-3100

0.7

1.2

VSWR

1700-3100

1.2

:1

CASE STYLE: GE0805C-1

Available Tape

and Reel

at no extra cost

Reel Size

Devices/Reel

7”

20, 50, 100, 200, 500,1000, 2000

+RoHS Compliant

The +Suffix identifies RoHS Compliance. See our web site

for RoHS Compliance methodologies and qualifications