78290 datasheet, PDF - EEWORLD Datasheet

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78290: DescriptionGeneral Purpose Audio Transformer,; CategoryPower management transformer; File Size118KB，5 Pages; ManufacturerPico Electronics Inc.

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78290 Overview

General Purpose Audio Transformer,

78290 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Pico Electronics Inc.
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	TURNS RATIO: 1:1, HEIGHT DIM INCLUDES TERMINAL ALSO
high	6.1 mm
JESD-609 code	e0
length	13.97 mm
Installation features	SURFACE MOUNT
Maximum operating frequency	200 kHz
Minimum operating frequency	0.3 kHz
Maximum operating temperature	130 °C
Minimum operating temperature	-55 °C
physical size	L13.97XB13.97XH6.1 (mm)
main impedance	1200 OHMS CT
secondary impedance	1200 OHMS CT
surface mount	YES
Terminal surface	Tin/Lead (Sn/Pb)
Transformer type	GENERAL PURPOSE AUDIO TRANSFORMER
width	13.97 mm
Base Number Matches	1

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Low Profile Audio Transformers - 78000 Series

Page 1 of 5

Low Profile Audio Transformers

New Surface Mount (.24" Ht. x .55" x.55")

SURFACE MOUNT

Specifications

MIL-PRF-27:

All units manufactured to MIL-PRF-27. Grade 5, Class S.

FREQUENCY RESPONSE:

± 2dB, 300 Hz-200 KHz at 1.0 Milliwatt.

MAXIMUM DISTORTION:

5% with rated power level at 1 KHz and 300 Hz.

DIELECTRIC STRENGTH:

All units tested at 200 V RMS.

INSULATION RESISTANCE:

Greater than 10,000 Megohms at 300 V DC.

WEIGHT:

3 Grams

OPERATING TEMPERATURE:

-55º C to +130º C

TERMINALS:

Solderability per MIL-STD-202, Method 208.

THERMAL SHOCK:

25 Cycles, Method 107, MIL-STD-202, Test Condition -55º C to +130º C.

PICO surface mount units utilize materials and methods to withstand extreme temperatures of vapor phase, I.R., and other reflow procedures without degradation of electrical or mechanical characteristics.

Larger size schematic

Low Profile Audio Transformers

Secondary

Impedence

Ohms

Split

Windings

Ser

78003

78005

78010

78015

10ct

20ct

32ct

10ct

8ct

20ct

32ct

Par

2.5

Power Watts

1 Khz

and

Higher

300Hz

and

Higher

.050

Primary

Unbal

Current

Primary

Resistance

Ohms

Secondary

Resistance

Ohms

Ser

Conn

1.16

.93

2.33

3.73

Par

Conn

.29

.23

.58

.93

SEC

Ser

Conn

1:1

1.58:1

1:1

Turns/Ratio

Prim/Sec

SEC

Par

Conn

2:1

3.16:1

2:1

PICO

Prices

1-9**

(US $)

PICO

Part

Number

Primary

Impedence

Ohms

31.6

22.3

17.6

.83

1.66

2.66

54.78

http://www.picoelectronics.com/surface/pe002_3.htm?PartNo=78003

5/4/2009

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