0 reviews
Be the first to review this item!
Product Description
Manufacturer Part Number: P-T-LEHLE-HZ-L
The Lehle Transformer HZ is the ideal component to avoid hum loops or to balance and unbalance signals without degrading the sound of high impedance signal sources. When these signals from passive pickups of stringed instruments or from vintage tube equipment for example are isolated by standard transformers, the load of these transformer normally degrade the sound. These very weak signals deserve a special transformer that does not load the signal. The self load of the LEHLE TRANSFORMER HZ is in the range over 5 MOHM at 1kHz. This minimal load in combination with the really strong coupling of the windings plus the excellent bandwidth guarantee that no detail of your sound gets lost.
With the maximum level of 7.3 VRMS at 50 Hz and very low distortion it is perfectly suited to pro audio environments which run typically with 1.2 VRMS (+4 dBu) level. It will also work perfectly with high end audio devices for home use. Using the Lehle Transformer HZ as an input or output transformer also prevents your device and the user from electrical shocks through it's dielectric withstanding voltage of 2 kV.
The toroidal core of the transformer is completely potted into the magnetically shielded enclosure, so there will be no microphonic issues. The HZ-L version with the coloured leads comes with two M3 screws, which make it very easy to mount.
Measurements and Specs
Files
The Lehle Transformer HZ is the ideal component to avoid hum loops or to balance and unbalance signals without degrading the sound of high impedance signal sources. When these signals from passive pickups of stringed instruments or from vintage tube equipment for example are isolated by standard transformers, the load of these transformer normally degrade the sound. These very weak signals deserve a special transformer that does not load the signal. The self load of the LEHLE TRANSFORMER HZ is in the range over 5 MOHM at 1kHz. This minimal load in combination with the really strong coupling of the windings plus the excellent bandwidth guarantee that no detail of your sound gets lost.
With the maximum level of 7.3 VRMS at 50 Hz and very low distortion it is perfectly suited to pro audio environments which run typically with 1.2 VRMS (+4 dBu) level. It will also work perfectly with high end audio devices for home use. Using the Lehle Transformer HZ as an input or output transformer also prevents your device and the user from electrical shocks through it's dielectric withstanding voltage of 2 kV.
The toroidal core of the transformer is completely potted into the magnetically shielded enclosure, so there will be no microphonic issues. The HZ-L version with the coloured leads comes with two M3 screws, which make it very easy to mount.
Measurements and Specs
| Capacitance primary to secondary winding | 143 pF | |
| Capacitance secondary winding to shield | 92 pF | |
| Common mode rejection ratio (1kHz) | 87 dB | |
| Common mode rejection ratio (50Hz) | 111 dB | |
| Compliance | RoHS II according to Directive 2011/65/EU | |
| Distortion (THD) | 0.003 % | |
| Frequency response total range | 4 Hz - 450 kHz | |
| Height | 21mm [0.83"] | |
| Input impedance | 885 kΩ | |
| Lead Length | 90mm [3.54"] | |
| Leakage inductance | 670 mH | |
| Length | 32mm [1.26"] | |
| Level audio range (20 Hz) | -0.2 dBu | |
| Level audio range (20 kHz) | -0.04 dBu | |
| Load impedance | 7.5 MΩ | |
| Magnetic coupling | 98 dB | |
| Maximum input level (20Hz) | 11.5 dBu / 2.9 VRMS | |
| Maximum input level (50Hz) | 19.5 dBu / 7.3 VRMS | |
| Mounting Hole Center to Center | 18mm [0.71"] | |
| Mounting Hole Threading | M3 | |
| Phase shift (20 Hz) | 5° | |
| Phase shift (20 kHz) | -2° | |
| Primary DC resistance | 74 Ohm | |
| Primary inductance | 56 H | |
| Secondary DC resistance | 85 Ohm | |
| Self resonance point | 375 kHz | |
| Temperature range | -20 °C [-4 °F] - +125 °C [257 °F] | |
| Turns ratio | 1:1 | |
| Voltage gain | -0.06 dB | |
| Weight | 63 g [2.3 oz] | |
| Width | 32mm [1.26"] |
| Packaging Dimensions | 1.271 in. × 1.261 in. × 1.831 in. | |
| Weight (Packaging) | 0.146 lbs. |
Files
| Datasheet | All Models |
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Need more information?
Our staff are available to answer any questions you may have about this item
Our staff are available to answer any questions you may have about this item