This site uses cookies to deliver our services and provide a basic level of website functionality. The four different types of cookies are: Strictly Necessary cookies, Functionality cookies, Performance cookies and Advertising cookies. By checking the box and clicking the button below, you are informing Rapid Electronics Ltd that you agree to the use of these cookies as detailed in our Privacy Policy.

Industry Schools FE/HE Site: Industry Site: Schools Site: FE/HE Site: Mobile

TracoPower TSRN 1-2490 Switching Regulator 1A 12V 9V

Order Code:  


Brand: TracoPower  MPN: TSRN 1-2490  EAN-13: 4016138870862
 Report an error
Qty Unit Price (Ex VAT)
1+ £9.44
5+ £9.02
10+ £8.91

Get a quote for large quantities here

Price per unit {{ IncVat ? 'Inc' : 'Ex' }} VAT
21 available to back OrderStandard factory lead time 7 days

The TracoPower TSRN 1-2490 is a Non-isolated (POL) DC/DC Converter from the TSRN-1 Series. This step-down switching regulator is a drop-in replacement for inefficient 78xx linear regulators.

A high efficiency up to 95% allows full load operation up to +70°C (+85°C with derating) ambient temperature without the need of any heat-sink or forced air cooling. The TSRN 1-2490 provides other significant features over linear regulators, i.e. better output accuracy (±2%), lower standby current of 2mA and no requirement of external capacitors.

It is suitable for both positive and negative output circuits. The high efficiency and low standby power consumption makes this regulator an ideal solution for energy sensitive applications.

  • SIP-3 package fits existing TO-220 footprint
  • Pin compatible with LMxx linear regulators
  • Built in filter capacitors
  • Operation temperature range -40°C to +85°C
  • No heat-sink required
  • Over-temperature protection
  • Short circuit protection
  • Line regulation: 0.2%
  • Load regulation: 1.0% typical
  • Output voltage set accuracy: 2.0% typical
  • Efficiency: 85% typical
  • I/O isolation voltage non-isolated
  • No load input current 2.0mA typical
  • Casing plastic (UL 94V-0 rated)
  • Wide input range up to 42VDC
  • Excellent line / load regulation
  • Negative and Positive output operation
  • Supplied with a positive output current of 300mA
  • Supplied with a positive output voltage of 9.0VDC output voltage
  • Manufacturer's part: TracoPower TSRN 1-2490

Straight pins
Negative output circuit
Mftrs. Part No.Input voltage Output VOutput AOrder code
TSRN 1-24154.6 to 32VDC -1.5VDC 600mA63-9644
TSRN 1-24184.6 to 32VDC -1.8 VDC600mA63-9645
TSRN 1-24254.6 to 32 VDC-2.5VDC 600mA63-9646
TSRN 1-24334.6 to 32VDC -3.3VDC 600mA63-9647
TSRN 1-24506.5 to 31VDC -5.0VDC 400mA63-9648
TSRN 1-24658.0 to 29VDC -6.5VDC 300mA63-9649
TSRN 1-2490 10.5 to 27VDC -9.0VDC 300mA63-9650
TSRN 1-24120 13.5 to 24VDC -12VDC 300mA63-9651
TSRN 1-24150 16.5 to 21VDC -15VDC 200mA63-9652
Straight pins
Positive output circuit
Mftrs. Part No.Input voltage Output VOutput AOrder code
TSRN 1-2415 4.6 to 42VDC1.5VDC 1000mA63-9644
TSRN 1-24184.6 to 42VDC1.8VDC 1000mA63-9645
TSRN 1-2425 4.6 to 42VDC2.5VDC 1000mA63-9646
TSRN 1-24334.6 to 42VDC3.3VDC 1000mA63-9647
TSRN 1-2450 6.5 to 42VDC 5.0VDC 1000mA63-9648
TSRN 1-2465 8.0 to 42VDC 6.5VDC 1000mA63-9649
TSRN 1-2490 10.5 to 42VDC 9.0VDC 1000mA63-9650
TSRN 1-24120 13.5 to 42VDC 12VDC 1000mA63-9651
TSRN 1-24150 16.5 to 42VDC 15VDC 1000mA 63-9652

To use this facility please Sign In. Alternatively use our Quotation page.

Sign In


Be the first to submit a review