Series LL-68500 – Low Leakage Data-Bus Transformer render 1

Series LL-68500

3KΩ Min. & 2.7µH Leakage at 75KHz to 1MHz

The LL-68500-TH & LL-68500-SM series are Low Leakage MIL-STD-1553 Interface / Multiplex Data Bus Pulse transformers in an encapsulated package with design layouts as through-hole or surface mount types. These transformers are designed for the lowest possible leakage inductance and DC resistance. The transparent signal processing for data transfer with minimal distortion making them ideal for aerospace and military applications.

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Features

  • Extreme resistance to impact, shock, and vibration
  • Manufactured to MIL-PRF-21038 and MIL-STD-1553
  • High reliability for space and mission critical applications
  • Ultra miniature in size and minimalistic design
  • Design layouts in through-hole or surface mount types

Options

  • Screening and qualification criteria to flight standard
  • Fully RoHS compliant or with exemption 7(a)
  • Modifications to mechanical design and electrical characteristics
  • Custom new design and parameters

Mounting

Turns Ratio

Impedance Ω (Min.)

Part Number MountingTurns Ratio (±3%)Primary TerminalsSecondary TerminalsDC Resistance Ω (max.)Impedance Ω (Min.)Typ. Leakage Inductance (μH)Size (L x W x H) inchesDownloads
LL-68585-THThrough Hole1.41:1
2:1		1-34-8
5-7		(1-3) 2.07
(4-8) 0.98		3000(1-3)
4.5		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68585-SMSurface Mount1.41:1
2:1		1-34-8
5-7		(1-3) 2.07
(4-8) 0.98		3000(1-3)
4.5		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68580-THThrough Hole2.12:1
1.5:1		4-8
5-7		1-3(1-3) 0.81
(4-8) 2.82		3000(4-8)
10.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68580-SMSurface Mount2.12:1
1.5:1		4-8
5-7		1-3(1-3) 0.81
(4-8) 2.82		3000(4-8)
10.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68575-THThrough Hole1:2.5
1:1.79		1-34-8
5-7		(1-3) 0.72
(4-8) 2.75		3000(4-8)
4.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68575-SMSurface Mount1:2.5
1:1.79		1-34-8
5-7		(1-3) 0.72
(4-8) 2.75		3000(4-8)
4.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68570-THThrough Hole1:1
1:0.707		1-34-8
5-7		(1-3) 2.07
(4-8) 1.32		3000(4-8)
4.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68570-SMSurface Mount1:1
1:0.707		1-34-8
5-7		(1-3) 2.07
(4-8) 1.32		3000(4-8)
4.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68565-THThrough Hole1:2.51-34-6(1-3) 0.50
(4-6) 2.10		3000(4-6)
5.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68565-SMSurface Mount1:2.51-34-6(1-3) 0.50
(4-6) 2.10		3000(4-6)
5.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68560-THThrough Hole1:1.791-34-6(1-3) 0.71
(4-6) 2.05		3000(4-6)
5.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68560-SMSurface Mount1:1.791-34-6(1-3) 0.71
(4-6) 2.05		3000(4-6)
5.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68555-THThrough Hole1:1.51-34-6(1-3) 0.75
(4-6) 2.05		3000(4-6)
5.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68555-SMSurface Mount1:1.51-34-6(1-3) 0.75
(4-6) 2.05		3000(4-6)
5.2		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68550-THThrough Hole1:2.5
1:1.79		1-34-8
5-7		(1-3) 0.87
(4-8) 2.52		4000(4-8)
7.1		0.625 x 0.625 x 0.32
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68550-SMSurface Mount1:2.5
1:1.79		1-34-8
5-7		(1-3) 0.87
(4-8) 2.52		4000(4-8)
7.1		0.625 x 0.625 x 0.32
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68545-THThrough Hole2.12:1
1.5:1		4-8
5-7		1-3(1-3) 0.82
(4-8) 2.12		4000(4-8)
8.0		0.625 x 0.625 x 0.32
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68545-SMSurface Mount2.12:1
1.5:1		4-8
5-7		1-3(1-3) 0.82
(4-8) 2.12		4000(4-8)
8.0		0.625 x 0.625 x 0.32
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68540-THThrough Hole1:21-34-6(1-3) 0.52
(4-6) 2.05		3000(4-6)
4.5		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68540-SMSurface Mount1:21-34-6(1-3) 0.52
(4-6) 2.05		3000(4-6)
4.5		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68535-THThrough Hole1:1.661-34-6(1-3) 0.72
(4-6) 2.05		3000(4-6)
2.73		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68535-SMSurface Mount1:1.661-34-6(1-3) 0.72
(4-6) 2.05		3000(4-6)
2.73		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68530-THThrough Hole1:1.411-34-6(1-3) 0.80
(4-6) 2.05		3000(4-6)
2.73		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68530-SMSurface Mount1:1.411-34-6(1-3) 0.80
(4-6) 2.05		3000(4-6)
2.73		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68525-THThrough Hole1:11-34-6(1-3) 2.05
(4-6) 2.14		3000(1-3)
2.73		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68525-SMSurface Mount1:11-34-6(1-3) 2.05
(4-6) 2.14		3000(1-3)
2.73		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68520-THThrough Hole1:1.411-34-6(1-3) 0.82
(4-6) 1.95		3000(4-6)
2.73		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68520-SMSurface Mount1:1.411-34-6(1-3) 0.82
(4-6) 1.95		3000(4-6)
2.73		0.40 x 0.40 x 0.28
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68510-THThrough Hole1.25:1
1.66:1		1-34-8
5-7		(1-3) 2.90
(4-8) 1.20		4000(1-3)
4.7		0.625 x 0.625 x 0.32
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68510-SMSurface Mount1.25:1
1.66:1		1-34-8
5-7		(1-3) 2.90
(4-8) 1.20		4000(1-3)
4.7		0.625 x 0.625 x 0.32
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68505-THThrough Hole1.4:1
2:1		1-34-8
5-7		(1-3) 2.90
(4-8) 1.08		7200(1-3)
4.7		0.625 x 0.625 x 0.32
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68505-SMSurface Mount1.4:1
2:1		1-34-8
5-7		(1-3) 2.90
(4-8) 1.08		7200(1-3)
4.7		0.625 x 0.625 x 0.32
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File
LL-68500-THThrough Hole1:1
1:0.707		1-34-8
5-7		(1-3) 2.90
(4-8) 1.42		4000(1-3)
4.7		0.625 x 0.625 x 0.32
DatasheetTechnical DrawingElectrical Schematic3D Step File
LL-68500-SMSurface Mount1:1
1:0.707		1-34-8
5-7		(1-3) 2.90
(4-8) 1.42		4000(1-3)
4.7		0.625 x 0.625 x 0.32
DatasheetTechnical DrawingElectrical SchematicLand Pattern3D Step File