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Surface Mount RS-232/RS-485
Isolation Transformers

• Provide isolated voltages required by RS-232 and RS-485 data interface applications
• 1500 Vrms isolation between windings
• Miniature surface mount packages
• Available with plastic cover for pick and place operations
• Custom versions available with other voltage, inductance and RDC values

Photo

SPECIFICATIONS

Dimensions     View data sheet in Acrobat PDF format

Part Number	Isolated Voltage	Inductance Min (µH)	RDC Max (Ohms)	Isolation Pri-Sec (Vrms)	Turns Ratio	Schematic	Body Style
T6437-A	5 V to 5V	1000 (1 - 4)	1.010 (1-2, 3-4) 1.955 (8-5)	1500 (1,3 - 8)	1 CT:1		A
Q4470-B Q4470-C	5 V to 5 V	400 (1 - 3)	.950 (1-3) 1.25 (6-4)	1500 (1 - 4)	1 CT:1.3 CT		B
S5394-B S5394-C	5 V to 10 V	400 (1 - 3)	.950 (1-3, 6-4)	1500 (1 - 4)	1 CT:1		B
U6982-B U6982-C	3.3 V to 5 V	59 (1 - 3)	.700 (1-3) 1.800 (6-4)	1500 (1 - 4)	1 CT: 2.1 CT		B
S5499-A	5 V to 24 V	40 (2 - 1)	.540 (2-1, 4-3) 4.28 (5-6, 7-8)	1500 (1,3 - 8,6)	1 CT:5 CT		A
T6650-A	5 V to 24 V	176 (2 - 3)	1.015 (2-3) 8.250 (7-6)	1500 (3 - 6)	1:5		A

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Updated: August 12, 1999