TDK HHM Series HHM1791A1 specifications Shapes and Dimensions, Circuit Diagram

Multilayer Chip Baluns

For WiMAX

HHM Series HHM1791A1

SHAPES AND DIMENSIONS

	1.6±0.1		0.6±0.1
6	5	4
				0.8±0.1		Terminal functions
1	2	3
					1		N.C.
0.55±0.1		0.3±0.1
						2	GND

3Balanced port

4Balanced port

5GND

6Unbalanced port

0.1±0.1 0.25±0.1 Dimensions in mm

CIRCUIT DIAGRAM

6	5	4
Unbalanced		Balanced
input		output
50Ω		100Ω
1	2	3

RECOMMENDED PC BOARD PATTERNS

0.25

0.25 This width is 50Ω.

Micro-strip line for 0.4mm thick glass-epoxy substrate.

0.6 0.3 0.6	6	5	4
	1	2	3
	0.3		0.3
		ø0.3 Through-hole			Dimensions in mm
ELECTRICAL CHARACTERISTICS
Unbalanced impedance					50Ω
Balanced impedance					100Ω
Frequency range					2500 to 2700MHz
Unbalanced port return loss					10dB min.
Phase imbalance at balanced port					180±10deg
Amplitude imbalance at balanced port					0±2.2dB
Insertion loss					0.8dB max.
Temperature range				Operating	–40 to +85°C
				Storage	–40 to +85°C
Packaging style and quantities					4000pieces/reel

(1/2)

Conformity to RoHS Directive

•Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.

•All specifications are subject to change without notice.

002-01 / 20080520 / e751_hhm1791a1