Transformer - Hammond, Line Output Transformers
Studio Grade Impedance Matching, 1140 Series.
Features
- Designed with Nickel alloy cores for high performance and Wide Bandwidth
- Frequency Response: 20 Hz – 20 kHz ±0.35 dB, (ref. @ 1 kHz)
- Low distortion at levels up to +27 dBu @ 20 Hz.
- Open Style
Part No. | Impedance Ratio | Turns Ratio | Max Input @ 20Hz | THD @ 20Hz | Frequency Response 20Hz / 20kHz |
---|---|---|---|---|---|
P-T1140-LU-A | 10K:600 | 4:1 | +23 dBu | 0.00% | -0.06 dB/+0.04 dB |
P-T1140-LU-B | 600:600 | 1:1 | +21 dBu | 0.150% | -0.20 dB/+0.03 dB |
P-T1140-LU-C | 600:600 | 1:1 | +18 dBu | 0.001% | -0.05 dB/+0.02 dB |
P-T1140-LU-D | 600:600 | 1:1 | +24 dBu | 0.080% | -0.18 dB/+0.03 dB |
P-T1140-LU-E | 600:600 | 1:1 | +22 dBu | 0.001% | -0.03 dB/+0.02 dB |
P-T1140-LU-F | 600:150 | 2:1 | +27 dBu | 0.001% | -0.01 dB/+0.01 dB |
P-T1140-LU-G | 600:600 | 1:1 | +27 dBu | 0.001% | -0.02 dB/+0.02 dB |
RoHS Compliant
Product Option | Our Part Number | UPC/EAN | Hammond Part Number |
---|---|---|---|
1140-LU-A | P-T1140-LU-A | 623980930305 | 1140-LU-A |
1140-LU-B | P-T1140-LU-B | 623980930312 | 1140-LU-B |
1140-LU-C | P-T1140-LU-C | 623980930329 | 1140-LU-C |
1140-LU-D | P-T1140-LU-D | 623980930336 | 1140-LU-D |
1140-LU-E | P-T1140-LU-E | 623980930343 | 1140-LU-E |
1140-LU-F | P-T1140-LU-F | 623980930350 | 1140-LU-F |
1140-LU-G | P-T1140-LU-G | 623980930367 | 1140-LU-G |
Capacitance, primary to shield and case | 1140-LU-A version | P-T1140-LU-A | 1 nF |
1140-LU-B version | P-T1140-LU-B | 20 nF | |
1140-LU-C version | P-T1140-LU-C | 20 nF | |
1140-LU-D version | P-T1140-LU-D | 20 nF | |
1140-LU-E version | P-T1140-LU-E | 20 nF | |
1140-LU-F version | P-T1140-LU-F | 30 nF | |
1140-LU-G version | P-T1140-LU-G | 25 nF | |
Capacitance, secondary to shield and case | 1140-LU-A version | P-T1140-LU-A | 800 pF |
1140-LU-B version | P-T1140-LU-B | 45 pF | |
1140-LU-C version | P-T1140-LU-C | 50 pF | |
1140-LU-D version | P-T1140-LU-D | 50 pF | |
1140-LU-E version | P-T1140-LU-E | 70 pF | |
1140-LU-F version | P-T1140-LU-F | 80 pF | |
1140-LU-G version | P-T1140-LU-G | 80 pF | |
Common Mode Rejection Level @ 3 kHz | 1140-LU-A version | P-T1140-LU-A | 90 dB |
1140-LU-B version | P-T1140-LU-B | 70 dB | |
1140-LU-C version | P-T1140-LU-C | 85 dB | |
1140-LU-D version | P-T1140-LU-D | 75 dB | |
1140-LU-E version | P-T1140-LU-E | 85 dB | |
1140-LU-F version | P-T1140-LU-F | 75 dB | |
1140-LU-G version | P-T1140-LU-G | 75 dB | |
Common Mode Rejection Level @ 60 Hz | 105 dB | ||
DCR Primary | 1140-LU-A version | P-T1140-LU-A | 610 Ω |
1140-LU-B version | P-T1140-LU-B | 58 Ω | |
1140-LU-C version | P-T1140-LU-C | 40 Ω | |
1140-LU-D version | P-T1140-LU-D | 40 Ω | |
1140-LU-E version | P-T1140-LU-E | 40 Ω | |
1140-LU-F version | P-T1140-LU-F | 30 Ω / 30 Ω | |
1140-LU-G version | P-T1140-LU-G | 40 Ω | |
DCR Secondary | 1140-LU-A version | P-T1140-LU-A | 45 Ω |
1140-LU-B version | P-T1140-LU-B | 58 Ω | |
1140-LU-C version | P-T1140-LU-C | 40 Ω | |
1140-LU-D version | P-T1140-LU-D | 40 Ω | |
1140-LU-E version | P-T1140-LU-E | 40 Ω | |
1140-LU-F version | P-T1140-LU-F | 30 Ω / 30 Ω | |
1140-LU-G version | P-T1140-LU-G | 40 Ω | |
Dielectric Strength | 1140-LU-B version | P-T1140-LU-B | 250 Vrms |
1140-LU-C version | P-T1140-LU-C | 250 Vrms | |
1140-LU-D version | P-T1140-LU-D | 250 Vrms | |
1140-LU-E version | P-T1140-LU-E | 250 Vrms | |
1140-LU-F version | P-T1140-LU-F | 250 Vrms | |
1140-LU-G version | P-T1140-LU-G | 250 Vrms | |
Frequency Response @ 20 Hz | 1140-LU-A version | P-T1140-LU-A | -0.06 dB |
1140-LU-B version | P-T1140-LU-B | -0.20 dB | |
1140-LU-C version | P-T1140-LU-C | -0.05 dB | |
1140-LU-D version | P-T1140-LU-D | -0.18 dB | |
1140-LU-E version | P-T1140-LU-E | -0.03 dB | |
1140-LU-F version | P-T1140-LU-F | -0.001 dB | |
1140-LU-G version | P-T1140-LU-G | -0.02 dB | |
Frequency Response @ 20 kHz | 1140-LU-A version | P-T1140-LU-A | +0.04 dB |
1140-LU-B version | P-T1140-LU-B | +0.03 dB | |
1140-LU-C version | P-T1140-LU-C | +0.02 dB | |
1140-LU-D version | P-T1140-LU-D | +0.03 dB | |
1140-LU-E version | P-T1140-LU-E | +0.02 dB | |
1140-LU-F version | P-T1140-LU-F | +0.007 dB | |
1140-LU-G version | P-T1140-LU-G | +0.02 dB | |
Input Impedance | 1140-LU-A version | P-T1140-LU-A | 10 kΩ |
1140-LU-B version | P-T1140-LU-B | 600 Ω | |
1140-LU-C version | P-T1140-LU-C | 600 Ω | |
1140-LU-D version | P-T1140-LU-D | 600 Ω | |
1140-LU-E version | P-T1140-LU-E | 600 Ω | |
1140-LU-F version | P-T1140-LU-F | 600 Ω | |
1140-LU-G version | P-T1140-LU-G | 600 Ω | |
Item Height | 1140-LU-A version | P-T1140-LU-A | 1.653 in. |
1140-LU-B version | P-T1140-LU-B | 1.19 in. | |
1140-LU-C version | P-T1140-LU-C | 1.38 in. | |
1140-LU-D version | P-T1140-LU-D | 1.38 in. | |
1140-LU-E version | P-T1140-LU-E | 1.625 in. | |
1140-LU-F version | P-T1140-LU-F | 1.95 in. | |
1140-LU-G version | P-T1140-LU-G | 1.95 in. | |
Item Length | 1140-LU-A version | P-T1140-LU-A | 2.809 in. |
1140-LU-B version | P-T1140-LU-B | 2.063 in. | |
1140-LU-C version | P-T1140-LU-C | 2.375 in. | |
1140-LU-D version | P-T1140-LU-D | 2.375 in. | |
1140-LU-E version | P-T1140-LU-E | 2.812 in. | |
1140-LU-F version | P-T1140-LU-F | 3.25 in. | |
1140-LU-G version | P-T1140-LU-G | 3.25 in. | |
Item Width | 1140-LU-A version | P-T1140-LU-A | 1.69 in. |
1140-LU-B version | P-T1140-LU-B | 1.063 in. | |
1140-LU-C version | P-T1140-LU-C | 1.19 in. | |
1140-LU-D version | P-T1140-LU-D | 1.19 in. | |
1140-LU-E version | P-T1140-LU-E | 1.3 in. | |
1140-LU-F version | P-T1140-LU-F | 1.55 in. | |
1140-LU-G version | P-T1140-LU-G | 1.55 in. | |
Lead Length | 8 in. | ||
Maximum Input Level | 1140-LU-A version | P-T1140-LU-A | +23 dBu |
1140-LU-B version | P-T1140-LU-B | +21 dBu | |
1140-LU-C version | P-T1140-LU-C | +18 dBu | |
1140-LU-D version | P-T1140-LU-D | +24 dBu | |
1140-LU-E version | P-T1140-LU-E | +22 dBu | |
1140-LU-F version | P-T1140-LU-F | +27 dBu | |
1140-LU-G version | P-T1140-LU-G | +27 dBu | |
Mounting Hole Center to Center | 1140-LU-A version | P-T1140-LU-A | 2.375 in. |
1140-LU-B version | P-T1140-LU-B | 1.75 in. | |
1140-LU-C version | P-T1140-LU-C | 2.0 in. | |
1140-LU-D version | P-T1140-LU-D | 2.0 in. | |
1140-LU-E version | P-T1140-LU-E | 2.375 in. | |
1140-LU-F version | P-T1140-LU-F | 2.81 in. | |
1140-LU-G version | P-T1140-LU-G | 2.81 in. | |
Output Impedance | 1140-LU-A version | P-T1140-LU-A | 150 / 600 Ω |
1140-LU-B version | P-T1140-LU-B | 600 Ω | |
1140-LU-C version | P-T1140-LU-C | 600 Ω | |
1140-LU-D version | P-T1140-LU-D | 600 Ω | |
1140-LU-E version | P-T1140-LU-E | 600 Ω | |
1140-LU-F version | P-T1140-LU-F | 600 Ω | |
1140-LU-G version | P-T1140-LU-G | 600 Ω | |
Phase Shift @ 20 Hz | 1140-LU-A version | P-T1140-LU-A | 1.5° |
1140-LU-B version | P-T1140-LU-B | 0.5° | |
1140-LU-C version | P-T1140-LU-C | 0.09° | |
1140-LU-D version | P-T1140-LU-D | 0.23° | |
1140-LU-E version | P-T1140-LU-E | 0.08° | |
1140-LU-F version | P-T1140-LU-F | 0.08° | |
1140-LU-G version | P-T1140-LU-G | 0.1° | |
Phase Shift @ 20 kHz | 1140-LU-A version | P-T1140-LU-A | 10° |
1140-LU-B version | P-T1140-LU-B | -1° | |
1140-LU-C version | P-T1140-LU-C | -0.75° | |
1140-LU-D version | P-T1140-LU-D | -0.7° | |
1140-LU-E version | P-T1140-LU-E | -1° | |
Primary Input Impedance | 1140-LU-A version | P-T1140-LU-A | 11.5 kΩ |
1140-LU-B version | P-T1140-LU-B | 710 kΩ | |
1140-LU-C version | P-T1140-LU-C | 680 Ω | |
1140-LU-D version | P-T1140-LU-D | 680 Ω | |
1140-LU-E version | P-T1140-LU-E | 680 Ω | |
1140-LU-F version | P-T1140-LU-F | 180 Ω | |
1140-LU-G version | P-T1140-LU-G | 680 Ω | |
Secondary Output Impedance | 1140-LU-A version | P-T1140-LU-A | 100 Ω |
1140-LU-B version | P-T1140-LU-B | 115 Ω | |
1140-LU-C version | P-T1140-LU-C | 80 Ω | |
1140-LU-D version | P-T1140-LU-D | 80 Ω | |
1140-LU-E version | P-T1140-LU-E | 80 Ω | |
1140-LU-F version | P-T1140-LU-F | 80 Ω | |
1140-LU-G version | P-T1140-LU-G | 80 Ω | |
THD | 1140-LU-A version | P-T1140-LU-A | 0.003% |
1140-LU-B version | P-T1140-LU-B | 0.002% | |
1140-LU-C version | P-T1140-LU-C | 0.001% | |
1140-LU-D version | P-T1140-LU-D | 0.001% | |
1140-LU-E version | P-T1140-LU-E | 0.007% | |
1140-LU-F version | P-T1140-LU-F | 0.007% | |
1140-LU-G version | P-T1140-LU-G | 0.01% | |
Turns Ratio | 1140-LU-A version | P-T1140-LU-A | 4.08:1 / 8.16:1 |
1140-LU-B version | P-T1140-LU-B | 1:1 | |
1140-LU-C version | P-T1140-LU-C | 1:1 | |
1140-LU-D version | P-T1140-LU-D | 1:1 | |
1140-LU-E version | P-T1140-LU-E | 1:1 | |
1140-LU-F version | P-T1140-LU-F | 1:1 | |
1140-LU-G version | P-T1140-LU-G | 1:1 |
Packaging Dimensions | 1140-LU-A version | P-T1140-LU-A | 2.8 in. × 1.69 in. × 1.653 in. |
1140-LU-B version | P-T1140-LU-B | 2.063 in. × 1.063 in. × 1.19 in. | |
1140-LU-C version | P-T1140-LU-C | 2.375 in. × 1.19 in. × 1.38 in. | |
1140-LU-D version | P-T1140-LU-D | 2.375 in. × 1.19 in. × 1.38 in. | |
1140-LU-E version | P-T1140-LU-E | 2.812 in. × 1.3 in. × 1.625 in. | |
1140-LU-F version | P-T1140-LU-F | 3.25 in. × 1.55 in. × 1.95 in. | |
1140-LU-G version | P-T1140-LU-G | 3.25 in. × 1.55 in. × 1.95 in. | |
Weight (Packaging) | 1140-LU-A version | P-T1140-LU-A | 0.7871 lbs. |
1140-LU-B version | P-T1140-LU-B | 0.4605 lbs. | |
1140-LU-C version | P-T1140-LU-C | 0.3 lbs. | |
1140-LU-D version | P-T1140-LU-D | 0.3 lbs. | |
1140-LU-E version | P-T1140-LU-E | 0.3 lbs. | |
1140-LU-F version | P-T1140-LU-F | 0.3 lbs. | |
1140-LU-G version | P-T1140-LU-G | 0.3 lbs. |
P-T1140-LU-A - 1140-LU-A version | Capacitance, primary to shield and case | 1 nF |
Capacitance, secondary to shield and case | 800 pF | |
Common Mode Rejection Level @ 3 kHz | 90 dB | |
Common Mode Rejection Level @ 60 Hz | 105 dB | |
DCR Primary | 610 Ω | |
DCR Secondary | 45 Ω | |
Frequency Response @ 20 Hz | -0.06 dB | |
Frequency Response @ 20 kHz | +0.04 dB | |
Input Impedance | 10 kΩ | |
Item Height | 1.653 in. | |
Item Length | 2.809 in. | |
Item Width | 1.69 in. | |
Lead Length | 8 in. | |
Maximum Input Level | +23 dBu | |
Mounting Hole Center to Center | 2.375 in. | |
Output Impedance | 150 / 600 Ω | |
Phase Shift @ 20 Hz | 1.5° | |
Phase Shift @ 20 kHz | 10° | |
Primary Input Impedance | 11.5 kΩ | |
Secondary Output Impedance | 100 Ω | |
THD | 0.003% | |
Turns Ratio | 4.08:1 / 8.16:1 | |
P-T1140-LU-B - 1140-LU-B version | Capacitance, primary to shield and case | 20 nF |
Capacitance, secondary to shield and case | 45 pF | |
Common Mode Rejection Level @ 3 kHz | 70 dB | |
Common Mode Rejection Level @ 60 Hz | 105 dB | |
DCR Primary | 58 Ω | |
DCR Secondary | 58 Ω | |
Dielectric Strength | 250 Vrms | |
Frequency Response @ 20 Hz | -0.20 dB | |
Frequency Response @ 20 kHz | +0.03 dB | |
Input Impedance | 600 Ω | |
Item Height | 1.19 in. | |
Item Length | 2.063 in. | |
Item Width | 1.063 in. | |
Lead Length | 8 in. | |
Maximum Input Level | +21 dBu | |
Mounting Hole Center to Center | 1.75 in. | |
Output Impedance | 600 Ω | |
Phase Shift @ 20 Hz | 0.5° | |
Phase Shift @ 20 kHz | -1° | |
Primary Input Impedance | 710 kΩ | |
Secondary Output Impedance | 115 Ω | |
THD | 0.002% | |
Turns Ratio | 1:1 | |
P-T1140-LU-C - 1140-LU-C version | Capacitance, primary to shield and case | 20 nF |
Capacitance, secondary to shield and case | 50 pF | |
Common Mode Rejection Level @ 3 kHz | 85 dB | |
Common Mode Rejection Level @ 60 Hz | 105 dB | |
DCR Primary | 40 Ω | |
DCR Secondary | 40 Ω | |
Dielectric Strength | 250 Vrms | |
Frequency Response @ 20 Hz | -0.05 dB | |
Frequency Response @ 20 kHz | +0.02 dB | |
Input Impedance | 600 Ω | |
Item Height | 1.38 in. | |
Item Length | 2.375 in. | |
Item Width | 1.19 in. | |
Lead Length | 8 in. | |
Maximum Input Level | +18 dBu | |
Mounting Hole Center to Center | 2.0 in. | |
Output Impedance | 600 Ω | |
Phase Shift @ 20 Hz | 0.09° | |
Phase Shift @ 20 kHz | -0.75° | |
Primary Input Impedance | 680 Ω | |
Secondary Output Impedance | 80 Ω | |
THD | 0.001% | |
Turns Ratio | 1:1 | |
P-T1140-LU-D - 1140-LU-D version | Capacitance, primary to shield and case | 20 nF |
Capacitance, secondary to shield and case | 50 pF | |
Common Mode Rejection Level @ 3 kHz | 75 dB | |
Common Mode Rejection Level @ 60 Hz | 105 dB | |
DCR Primary | 40 Ω | |
DCR Secondary | 40 Ω | |
Dielectric Strength | 250 Vrms | |
Frequency Response @ 20 Hz | -0.18 dB | |
Frequency Response @ 20 kHz | +0.03 dB | |
Input Impedance | 600 Ω | |
Item Height | 1.38 in. | |
Item Length | 2.375 in. | |
Item Width | 1.19 in. | |
Lead Length | 8 in. | |
Maximum Input Level | +24 dBu | |
Mounting Hole Center to Center | 2.0 in. | |
Output Impedance | 600 Ω | |
Phase Shift @ 20 Hz | 0.23° | |
Phase Shift @ 20 kHz | -0.7° | |
Primary Input Impedance | 680 Ω | |
Secondary Output Impedance | 80 Ω | |
THD | 0.001% | |
Turns Ratio | 1:1 | |
P-T1140-LU-E - 1140-LU-E version | Capacitance, primary to shield and case | 20 nF |
Capacitance, secondary to shield and case | 70 pF | |
Common Mode Rejection Level @ 3 kHz | 85 dB | |
Common Mode Rejection Level @ 60 Hz | 105 dB | |
DCR Primary | 40 Ω | |
DCR Secondary | 40 Ω | |
Dielectric Strength | 250 Vrms | |
Frequency Response @ 20 Hz | -0.03 dB | |
Frequency Response @ 20 kHz | +0.02 dB | |
Input Impedance | 600 Ω | |
Item Height | 1.625 in. | |
Item Length | 2.812 in. | |
Item Width | 1.3 in. | |
Lead Length | 8 in. | |
Maximum Input Level | +22 dBu | |
Mounting Hole Center to Center | 2.375 in. | |
Output Impedance | 600 Ω | |
Phase Shift @ 20 Hz | 0.08° | |
Phase Shift @ 20 kHz | -1° | |
Primary Input Impedance | 680 Ω | |
Secondary Output Impedance | 80 Ω | |
THD | 0.007% | |
Turns Ratio | 1:1 | |
P-T1140-LU-F - 1140-LU-F version | Capacitance, primary to shield and case | 30 nF |
Capacitance, secondary to shield and case | 80 pF | |
Common Mode Rejection Level @ 3 kHz | 75 dB | |
Common Mode Rejection Level @ 60 Hz | 105 dB | |
DCR Primary | 30 Ω / 30 Ω | |
DCR Secondary | 30 Ω / 30 Ω | |
Dielectric Strength | 250 Vrms | |
Frequency Response @ 20 Hz | -0.001 dB | |
Frequency Response @ 20 kHz | +0.007 dB | |
Input Impedance | 600 Ω | |
Item Height | 1.95 in. | |
Item Length | 3.25 in. | |
Item Width | 1.55 in. | |
Lead Length | 8 in. | |
Maximum Input Level | +27 dBu | |
Mounting Hole Center to Center | 2.81 in. | |
Output Impedance | 600 Ω | |
Phase Shift @ 20 Hz | 0.08° | |
Primary Input Impedance | 180 Ω | |
Secondary Output Impedance | 80 Ω | |
THD | 0.007% | |
Turns Ratio | 1:1 | |
P-T1140-LU-G - 1140-LU-G version | Capacitance, primary to shield and case | 25 nF |
Capacitance, secondary to shield and case | 80 pF | |
Common Mode Rejection Level @ 3 kHz | 75 dB | |
Common Mode Rejection Level @ 60 Hz | 105 dB | |
DCR Primary | 40 Ω | |
DCR Secondary | 40 Ω | |
Dielectric Strength | 250 Vrms | |
Frequency Response @ 20 Hz | -0.02 dB | |
Frequency Response @ 20 kHz | +0.02 dB | |
Input Impedance | 600 Ω | |
Item Height | 1.95 in. | |
Item Length | 3.25 in. | |
Item Width | 1.55 in. | |
Lead Length | 8 in. | |
Maximum Input Level | +27 dBu | |
Mounting Hole Center to Center | 2.81 in. | |
Output Impedance | 600 Ω | |
Phase Shift @ 20 Hz | 0.1° | |
Primary Input Impedance | 680 Ω | |
Secondary Output Impedance | 80 Ω | |
THD | 0.01% | |
Turns Ratio | 1:1 |
Specification Sheet for 1140-LU-A | P-T1140-LU-A |
Specification Sheet for 1140-LU-B | P-T1140-LU-B |
Specification Sheet for 1140-LU-C | P-T1140-LU-C |
Specification Sheet for 1140-LU-D | P-T1140-LU-D |
Specification Sheet for 1140-LU-E | P-T1140-LU-E |
Specification Sheet for 1140-LU-F | P-T1140-LU-F |
Specification Sheet for 1140-LU-G | P-T1140-LU-G |
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