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TR-3 The Kramer TR-3 is a high-performance isolation transformer designed for composite video and balanced stereo audio signals. It effectively eliminates hum, ground loops, and DC offsets.
Mfr Part #:

TR-3

Available from 1 distributors
Mfr Name: Kang Yang International
Kang Yang International
The Kramer TR-3 is a high-performance isolation transformer designed for composite video and balanced stereo audio signals. It effectively eliminates hum, ground loops, and DC offsets.
✓ Total Stock: 800 pcs
$ Price Range: $8.64

TR-3 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Partservice ✓
Non-Authorised Inventory information
800 pcs
On Request
800 pcs On Request 1 On Request On Request On Request 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.

TR-3 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Bandwidth
Industrial Grade
Insertion Loss
Medical Grade
Military Grade
Storage Temperature
Tape & Reel
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TR-3 Description

Short technical summary and product information.

The Kramer TR-3 is a passive isolation transformer that provides complete signal isolation for composite video and balanced stereo audio. This unit is engineered to eliminate common signal integrity issues such as hum, ground loops, and DC offsets, which can degrade audio and video quality.

 

Key technical specifications include a video bandwidth of up to 5.8MHz (-3dB) and an audio bandwidth ranging from 20Hz to 20kHz. The transformer boasts a low insertion loss of 0.8dB for video signals and offers a maximum output level of 4Vpp for video and +26dBu for audio. It also features excellent differential gain and phase performance, with values of 0.05% and 0.05 degrees respectively, and a K-factor of less than 1.2%.

 

The TR-3 includes DIP-switches for selectable audio and video grounding options, allowing for flexible integration into various system setups. Its compact Kramer TOOLS form factor enables side-by-side rack mounting with an optional adapter. The device requires no external power, simplifying installation and operation.

 

Dimensions are 12.12cm x 7.23cm x 3.07cm, with a weight of approximately 0.4kg. It comes with mounting brackets, and an optional RK-3TR rack adapter is available for 19-inch rack installations.

TR-3 Quick Information

Product Type: Isolation Transformer
Canonical Name: TR-3 Video & Balanced Stereo Audio Isolation Transformer
Subcategory: Isolation Transformer

TR-3 Compliance

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

TR-3 Estimated Pricing

Qty Low High
1+ $8.64 $8.64

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

TR-3 Features

  • Provides isolation for video and audio.
  • Eliminates hum, ground loops, and DC offsets.
  • 5.8MHz video bandwidth, 20Hz-20kHz audio bandwidth.
  • Passive design, no external power required.
  • Selectable grounding options via DIP-switches.

TR-3 Applications

  • Ideal for audio/video signal integrity.
  • Use in broadcast and professional AV.
  • Eliminates ground loop noise.
  • Protects equipment from DC offsets.

TR-3 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the video bandwidth of the TR-3 isolation transformer?

The video bandwidth is up to 5.8MHz (-3dB).

What is the audio bandwidth of the TR-3 isolation transformer?

The audio bandwidth ranges from 20Hz to 20kHz.

What is the insertion loss for video signals on the TR-3?

The insertion loss for video is 0.8dB.

What is the maximum output level for audio on the TR-3?

The maximum audio output level is +26dBu.

What are the dimensions of the TR-3 isolation transformer?

The product dimensions are 12.12cm x 7.23cm x 3.07cm (W, D, H).

Does the TR-3 require external power?

No, the TR-3 is a passive device and requires no power.

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