Hammond Mfg. Co. Ltd., Electronics Division

www.hammondmfg.com

108E

MINIATURE EPOXY POTTED AUDIO TRANSFORMER

Audio input, line matching and output transformers

Epoxy potted in an attractive molded case, Pin type, P.C. board

mount, (min. 0.187” length)

Rugged epoxy potted construction produces a completely

sealed unit withstanding severe environmental conditions.

In some models where no center tap is present (on the secondary), pin 5 is omitted.

Secondary may be used as primary and primary as secondary.

Will withstand soldering for 10 sec. @ 260 degrees C, ambient temp. 85 degrees C max.

Power level: 500mw @ 300 Hz. to 50 Khz.

-Freq. range @ +0 dbm is 300 Hz. to 50 Khz. +/- 1.75db

-Freq. range @ +15 dbm is 300 Hz. to 50 Khz. +/- 1.75db

-Freq. range @ +27 dbm is 300 Hz. to 50 Khz. +/- 1.75db

-Freq. measurements with no D.C. saturation.

ELECTRICAL SPECIFICATIONS

Characteristic

Typical

Input Impedance

600

ΩCT

Output Impedance

3.2

Ω

Output Power

0.500 Watts

DCR

Primary 1-3

54

Ω (27Ω/27Ω)

Secondary 4-6

0.40

Ω

Inductance

@ 1.0 kHz, 1.0 V OC

Primary

0.95 H

Secondary

5.5 mH

Leakage Inductance

2.60 mH

Impedance

@ 1.0 kHz, 1.0 V OC

Primary

8.20 K

Ω

Secondary

53.5

Ω

Frequency Response

±1.75db from 300Hz to 50KHz

Unbalanced DC

6mA Max.

Turns ratio

13.71:1

Dielectric Strength

100 Vrms

Temperature Range

-40 To 105

°C**

108E

CANADA

1

2

3

4

5

6

108E

MADE IN

1

2

3

4

5

6

CANADA

PRIMARY

SECONDARY

SCHEMATIC DIAGRAM

1

2

3

6

4

600

PCB LAYOUT