BR20
Crystal Can
Welded • DPDT
Magnetic Latching
Dry Circuit to 10 Amps
SPECIFICATIONS
GENERAL
Contact Arrangement
.......................... 2PDT (2 Form C)
Magnetic Latching
Weight.........................................................
1.6 oz approx.
Designed to meet the requirements of MIL-PRF-39016.
ENVIRONMENTAL
Temperature Range
............................... -65 C to +125 C
Vibration
(Note 2)............................... 0.4" DA 10 - 38 Hz,
20 G's 38 - 2,000 Hz
Shock (Operating)
(Note 2) ........................ 50 G's 11 ms
o
o
PERFORMANCE
Contact Rating
(Note 1):
Resistive .............10 Amps @ 28 VDC or 115V 400 Hz
(Case Ungrounded)
Inductive .......................................3.5 Amps @ 28 VDC
Life
...................................100,000 operations minimum
o
@ rated load, 125 C
Latch/Reset Power:
BR20AX................................................250 mw approx.
BR20BX................................................130 mw approx.
Latch/Reset Time
.......................... 10 ms max, excluding
bounce time at nominal coil voltage
Contact Bounce Time..................
2 ms max @ 10 Amps
28 VDC
Contact Voltage Drop:
Before Life.......................100 mv max @ rated current
6 or 28 VDC
After Life ..........................200 mv max @ rated current
6 or 28 VDC
Notes
1. For case grounded loads and other ratings, consult the
factory.
2. For applications requiring other shock and vibration
levels, consult the factory.
3. For other ratings consult the factory.
4. Relay contacts which have switched high level currents
are no longer suitable for switching low level loads.
April
2015 Rev.
4
ELECTRICAL CHARACTERISTICS
Duty Cycle........................................................Continuous
Insulation Resistance
o
10,000 megohms @ 500V 25 C
o
1,000 megohms @ 500V 125 C
Dielectric Strength:
Sea Level:
Between Coils (BR20AX) ....................... 500 VRMS
Contact to Case ................................... 1,250 VRMS
Contact to Coil ..................................... 1,250 VRMS
Coil to Case ......................................... 1,000 VRMS
Across Open Contacts ........................ 1,250 VRMS
70,000 Feet
All points.................................................. 500 VRMS
5. Contacts were placed in the position shown by placing
voltage with the polarity shown on the indicated coil
(reset). To switch contacts, a voltage of indicated
polarity must be applied to the other coil (Latch).
6. Contacts were placed in position shown by placing
voltage with the polarity indicated on the coil. To switch
contacts a voltage of the reverse polarity must be
applied to the coil.
1
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© 2015 Microsemi Corporation
COIL DATA
PART NUMBER
MODEL BR20AX — 10 Amps (Dual Coil, 250 MW)
MODEL BR20BX — 10 Amps (Single Coil, 130 MW)
BR20AX-()()-V1
BR20BX-()()-V1
BR20AX-()()-V2
BR20BX-()()-V2
BR20AX-()()-V3
BR20BX-()()-V3
BR20AX-()()-V4
BR20BX-()()-V4
BR20AX-()()-V5
BR20BX-()()-V5
NOMINAL COIL VOLTAGE
MAXIMUM COIL VOLTAGE
LATCH/RESET VOLTAGE (MAX at +125 C)
LATCH/RESET VOLTAGE (MAX)
COIL RESISTANCE
o
± 10% at 25 C
BR20AX
BR20BX
o
6 VDC
7.3 VDC
4.4 VDC
3 VDC
30 OHMS
65 OHMS
12 VDC
14.8 VDC
8.4 VDC
6 VDC
120 OHMS
250 OHMS
26 VDC
32 VDC
18 VDC
13 VDC
600 OHMS
1200 OHMS
48 VDC
59 VDC
33 VDC
24 VDC
2200 OHMS
4500 OHMS
115 VDC
127 VDC
79 VDC
57.5 VDC
10,000 OHMS
20,000 OHMS
------------------------------------------------------------- Relay Type
-------------------------------------------- Coil Configuration
--------------------------------- Terminal style
------------------------- Mounting Type
-------------- Nominal coil voltage
BR20
AX - G
8 - V3
SC
SCHEMATIC
TERMINAL VIEW
TERMINAL STYLES
MOUNTING CODES
GENERAL NOTES
• Unless otherwise specified, all tests made at nominal coil
o
voltages, @ 25 C.
• For special coil variations, switching configurations,
terminals styles and mounting types, consult the factory.
• Unless otherwise specified, tolerances on decimal
dimensions are ± .010".
• Specifications contained herein are subject to change
without notice.
2
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and system solutions for communications, defense & security, aerospace and industrial
markets. Products include high-performance and radiation-hardened analog mixed-signal
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property of their respective owners.
Microsemi makes no warranty, representation, or guarantee regarding the information contained herein or
the suitability of its products and services for any particular purpose, nor does Microsemi assume any
liability whatsoever arising out of the application or use of any product or circuit. The products sold
hereunder and any other products sold by Microsemi have been subject to limited testing and should not
be used in conjunction with mission-critical equipment or applications. Any performance specifications are
believed to be reliable but are not verified, and Buyer must conduct and complete all performance and
other testing of the products, alone and together with, or installed in, any end-products. Buyer shall not rely
on any data and performance specifications or parameters provided by Microsemi. It is the Buyer's
responsibility to independently determine suitability of any products and to test and verify the same. The
information provided by Microsemi hereunder is provided "as is, where is" and with all faults, and the entire
risk associated with such information is entirely with the Buyer. Microsemi does not grant, explicitly or
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BR20-04/04.15
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