DATA SHEET
Formerly
DEUTSCH LTD
RELAY
LF
2PDT BISTABLE LATCHING
CRYSTAL CAN RELAY
TYPE LF
Key Features
•
•
Hermetically Sealed
Low level to 3A switching
Wiring Schematic
3
22
21
+
1
+
2
23
Specifications
General
Contact Arrangement
Weight
The maximum operate power that can be applied is 0.75 watt
per coil at +25
o
C, de-rated linearly to 0.5 watt at +125
o
C. LF
relays are suitable for short-pulse operation and the pulse
power may be increased in inverse ratio to the duty cycle
when used in this mode, with a limit ratio of 16:1. The
minimum pulse lengths are 3 ms. Pulse power is the
continuous power divided by the duty cycle, where the duty
cycle equals the pulse lengths divided by the time for one
cycle.
2 Pole changeover (2PDT) break before make.
15.3 gm (mounting variant 01)
3A resistive, 10
5
operations at 28 VDC
1A resistive, 10
5
operations at 115 VRMS 400 Hz
6
Low level, 10 operations
5 x 10
7
6 ms nominal
8 ms max. (including bounce)
1 ms max.
All measurements at 25
o
C and nominal voltage
o
o
-65 C to +125 C
2
981 m/s (100g) for 11 ms
60 to 2000 Hz at 196 m/s
2
(20g) acceleration
10 to 60 Hz at 1.5mm amplitude
(Applies to mounting variant 01)
981 m/s
2
(100g)
4000 bumps at 390 m/s
2
(40g), 6ms duration
BS 2011 test Z/ABDM procedure 1
BS 2011 part 2.1 Kb severity 2
Performance
Contact Rating/Life
Mean Mechanical Life
Operate Time
Release Time
Bounce Time
Environmental
Temperature Range
Shock
Vibration
Linear Acceleration
Bump
Climatic
Salt Mist
Data Sheet No
DSDLF- 0305
SHEET 1 OF 4
Ordering Information
See sheet 4
Design authority and manufacture by Barnbrook Systems Limited
Barnbrook Systems reserves the right to alter specifications and design without notice
Quality Approvals
BS EN ISO 9001:2000
EASA Part 21 Subpart G
UK.21G.2069
EASA Part 145
UK.145.01008
BCAR A8-8
CAA DA1/9289/90
BARNBROOK SYSTEMS LIMITED, 25 FAREHAM PARK ROAD, HAMPSHIRE, PO15 6LD
TEL NO: +44(0)1329 847722 FAX: +44(0)1329 844232 E-mail:
sales@barnbrook.co.uk
www.barnbrook.com
Q 11271
DATA SHEET
RELAY
TYPE LF
Electrical
Contact Resistance
Insulation Resistance
Dielectric Strength
Code 01 contacts, 50 milliohms max measured at open
circuit voltage of 5V and current of 10 mA
1000 Megohms min – between any two isolated terminals
500 Megohms min – between terminals and case
Measured at 500 VDC and +25
o
C
1000 VRMS, 50 Hz at sea level, between contacts and
case and between the two sets of contacts
750 VRMS at 50 Hz, at sea level, between open contacts
of a set and coil to case.
350 VRMS 50 Hz, at 20 mbar air pressure (87,000ft),
between all terminals and case.
Closed contact to case
3.7 pF
Open contacts to case
2.0 pF
Between two contacts of a set
2.0 pF
Between the contact sets
3.5 pF
Capacitance
TERMINATION VARIANTS
Ref 1
Ref 2 - 3
Ref 4
3.30
2.50
0.87
0.71
5.60
4.30
0.85
0.71
x
0.85
0.71
2.54
5.08
5.08
2.54
2.54
5.08
10.16
12.70
15.24
10.16
12.70
15.24
5.08
6.00
5.10
2.54
5.08
10.16
12.70
15.24
2.54
2.54
5.08
All dimensions are millimetres.
Tolerances
±
0.25 unless otherwise stated
Data Sheet No
DSDLF- 0305
Dim. X
Note
Denotes Contrast Bead
SHEET 2 OF 4
REF
2
3
4.55 – 5.60
74.00 – 78.00
BARNBROOK SYSTEMS LIMITED, 25 FAREHAM PARK ROAD, HAMPSHIRE, PO15 6LD
TEL NO: +44(0)1329 847722 FAX: +44(0)1329 844232 E-mail:
sales@barnbrook.co.uk
www.barnbrook.com
Quality Approvals
BS EN ISO 9001:2000
EASA Part 21 Subpart G
UK.21G.2069
EASA Part 145
UK.145.01008
BCAR A8-8
CAA DA1/9289/90
Q 11271
DATA SHEET
RELAY
TYPE LF
MOUNTING VARIANTS
Ref 01
20.60 max
6.35
Dia
9.50
0.80
22.80
max
4.40 U.N.C.
2 holes
3.00 Dia
12.70
Ref 02
10.46
Ref 11
34.00 max
27.00
27.40
10.40
max
10.40
max
0.80
max
Ref 21
Ref 05
Ref 08
18.37
18.11
0.50
min
0.50
min
3.17
2-56 UNC
6.40
6.05
34.00 max
34.00 max
2A thread
33.80 max
3.10
3.10
11.50
max
27.00
27.40
27.00
27.40
27.00
Note
Denotes Contrast Bead
0.76
Ref 33
4.88
4.62
1.20
15.24
2.77
5.08
Data Sheet No
DSDLF- 0305
SHEET 3 OF 4
15.24
Mounting style 02 has a vibration level of 147 m/s (15g)
2
All other styles have a vibration level of 196 m/s (20g)
All dimensions are in millimetres.
Tolerances
±
0.25 unless otherwise stated
2
BARNBROOK SYSTEMS LIMITED, 25 FAREHAM PARK ROAD, HAMPSHIRE, PO15 6LD
TEL NO: +44(0)1329 847722 FAX: +44(0)1329 844232 E-mail:
sales@barnbrook.co.uk
www.barnbrook.com
Quality Approvals
BS EN ISO 9001:2000
EASA Part 21 Subpart G
UK.21G.2069
EASA Part 145
UK.145.01008
BCAR A8-8
CAA DA1/9289/90
Q 11271
DATA SHEET
ORDERING INFORMATION
LF2105K00
Modification number (oo standard)
2000 Series
Termination
Variant
RELAY
TYPE LF
(Refer to Page 2)
Mounting
Variant
(Refer to Page 3)
Coil Variant
(Refer to table below)
COIL VARIANTS AND OPERATING CHARACTERISTICS
LF Coil
Ref
D
G
J
K
L
N
Resistance
Ohms
±10%
(twice)
85
300
760
1150
2000
4400
o
Must Operate
volts DC
3.6
7.2
12.0
14.4
19.2
28.8
Maximum
volts DC
7.2
14.4
24.0
32.0
38.4
57.6
Nominal
Volts DC
6
12
20
24
32
48
Approximate
inductance each
Coil (Henrys)
0.06
0.16
0.38
0.60
0.90
1.90
Data Sheet No
DSDLF- 0305
SHEET 4 OF 4
All values measured at 25 C
BARNBROOK SYSTEMS LIMITED, 25 FAREHAM PARK ROAD, HAMPSHIRE, PO15 6LD
TEL NO: +44(0)1329 847722 FAX: +44(0)1329 844232 E-mail:
sales@barnbrook.co.uk
www.barnbrook.com
Quality Approvals
BS EN ISO 9001:2000
EASA Part 21 Subpart G
UK.21G.2069
EASA Part 145
UK.145.01008
BCAR A8-8
CAA DA1/9289/90
Q 11271
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