DistyParts Icon
TMR 9-4821 The TMR 9-4821 is an isolated DC/DC converter from Traco Power with dual ±5V outputs at 800mA each, delivering 8W. It operates from a 36-75V input with 86% efficiency and comes in a compact through-hole SIP-8 package.
Mfr Part #:

TMR 9-4821

Available from 1 distributors
Mfr Name: Traco Power
Traco Power
The TMR 9-4821 is an isolated DC/DC converter from Traco Power with dual ±5V outputs at 800mA each, delivering 8W. It operates from a 36-75V input with 86% efficiency and comes in a compact through-hole SIP-8 package.
✓ Total Stock: 10 pcs
$ Price Range: $35.24 - $40.16

TMR 9-4821 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
10 pcs
On Request
10 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TMR 9-4821 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Efficiency
Features
Height
Lead Style
Length
Mounting Type
Number of Outputs
Operating Temperature
Power (Watts)
SVHC Present
Tape & Reel
Type
Voltage
Width
View Similar Products (0)

TMR 9-4821 Description

Short technical summary and product information.

The TMR 9-4821 is an isolated DC/DC converter module from Traco Power's TMR 9 series. It provides dual regulated outputs: +5V at 800mA and -5V at 800mA, with a total output power of 8W. The converter operates over a wide input voltage range of 36-75V (48V nominal) and features a typical efficiency of 86%.

 

The module includes remote on/off control and indefinite short circuit protection. It offers 1600VDC input/output isolation, making it suitable for applications requiring galvanic isolation. Output voltage set accuracy is ±1%, with line regulation of 0.2% and load regulation of 1%.

 

Housed in an ultra-compact 8-SIP plastic package with 6 leads, the TMR 9-4821 measures 21.8mm x 9.6mm x 11.2mm. It is designed for through-hole mounting and operates over a temperature range of -40°C to +85°C (with derating). The converter is fully RoHS compliant and intended for ITE (commercial) applications such as communication equipment, instrumentation, and industrial electronics.

TMR 9-4821 Quick Information

Product Type: Isolated DC/DC Converter
Series: TMR 9
Canonical Name: Traco Power TMR 9-4821 Isolated DC/DC Converter, ±5V, 8W
Subcategory: Isolated Module

TMR 9-4821 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TMR 9-4821 Estimated Pricing

Qty Low High
1+ $40.16 $40.16
10+ $38.03 $38.03
20+ $37.22 $37.22
50+ $36.62 $36.62
100+ $36.02 $36.02
200+ $35.24 $35.24

Estimated market price range - modelled values for guidance only, not live distributor offers.

TMR 9-4821 Features

  • Dual ±5V outputs at 800mA each.
  • Wide 2:1 input voltage range 36-75V.
  • 1600VDC input/output isolation.
  • Remote on/off and short circuit protection.
  • Compact through-hole SIP-8 package.

TMR 9-4821 Applications

  • Used in communication equipment power supplies.
  • Ideal for industrial instrumentation systems.
  • Suitable for mixed-signal circuit isolation.
  • Deployed in space-constrained board designs.

TMR 9-4821 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TMR 9-4821?

36-75 VDC with a nominal of 48 VDC.

What are the output voltages and currents?

+5V at 800mA and -5V at 800mA, total 8W.

What is the isolation voltage?

1600 VDC input/output isolation.

What is the operating temperature range?

-40°C to +85°C with derating.

Is the TMR 9-4821 RoHS compliant?

Yes, it is fully RoHS compliant as per datasheet.

What package does the TMR 9-4821 come in?

8-SIP module, 6 leads, through-hole mounting. Dimensions 21.8mm x 9.6mm x 11.2mm.

Does the converter have short circuit protection?

Yes, indefinite short circuit protection is included.

Home

Categories