Relays
Part Number: BFH Series
Multi-Pole Instrumentation Reed Relays - 2 Form A, 3 Form A, and 2 Form C
Product Data Sheet
PICTURE
FEATURES
• Multi-pole designs 2 Form A, 3 Form A, and 2 Form C
• High Reliability Instrumentation Grade
reed switch with
sputtered Ruthenium Form A contacts
• Optional Electrostatic or Coaxial Shield (BFH-2A Only)
• High Insulation Resistance: 10
12
Ω MIN (Form A)
• Metal Cover (reduces magnetic interaction)
• Industry Standard Packages
• Custom Designs Available
CIRCUIT DIAGRAM
(Top View)
8
5
8
7
6
5
8
7
6
5
1
2
3
4
1
2
3
4
BFH-2A
BFH-3A
1
2
BFH-2C
3
4
NOTE:
Model BFH-2A, pin #6 is tied to optional electrostatic shield, pins #6 & #7 are tied to optional coaxial shield.
ORDERING INFORMATION
Series
BFH
Form
2A
3A
2C
Coil
05
12
Options
E = Electrostatic Shield (BFH-2A Only)
C = Coaxial Shield (BFH-2A Only)
BFH-2A-12E = 2 form A, 12 Volt Coil with Electrostatic Shield
Part Number Example:
BFH-XX-XXX
DIMENSIONS
0.810 (20.57)
0.210
(5.33)
0.370
(9.40)
0.138
(3.50)
0.020
(0.50)
Ø 0.018
(Ø 0.45)
0.500 (12.70)
0.700 (17.78)
1
2
BOTTOM VIEW
8
7
6
5
Drawings not to scale.
All dimensions in inches (mm) nominal.
0.10
(2.54)
3
4
As part of the company policy of continued product improvement, specifications may change without notice. Our sales office will be pleased to help you with the latest information on this product range and
the details of our full design and manufacturing service. All products are supplied to our standard conditions of sale unless otherwise agreed in writing.
Phone: (1) 973 777 6900
www.comus-intl.com
Fax: (1) 973 777 8405
Belgium: + 32 (0)12 390400 - Comus Europe Ltd (Assemtech) UK: +44 (0) 1255 862236 - Germany: +49 (0)911 923 15 943 - Netherlands: +31(0)45 54 39 345 - India: +(91) (44) 42023510
©2016 Copyright Comus International, 454 Allwood Road, Clifton NJ 07012, USA
1 / 2016
An ISO 9001 Certified Company
Relays
Part Number: BFH Series
Multi-Pole Instrumentation Reed Relays - 2 Form A, 3 Form A, and 2 Form C
Product Data Sheet
COIL DATA-STANDARD TYPE (at 20˚C)
PART NUMBER
NOMINAL VOLTAGE
DC±10% [V]
COIL RESISTANCE
±10%
(Ω)
MUST OPERATE
VOLTAGE MAX
[V] at 20°C
MUST RELEASE
VOLTAGE MIN
[V] at 20°C
MAX COIL
VOLTAGE [V]
BFH-2A
BFH-3A
BFH-2C
RELAY MODEL
5
12
175
1000
3.8
9.0
0.4
1.0
7
16
CONTACT RATING
2A
3A
2C
Max Contact Rating
Max Switching Voltage
Max Switching Current
Max Carry Current
10 W
200 VDC
0.5 A
1.5 A
10 W
200 VDC
0.5 A
1.5 A
3A
5W
100 VDC
0.25 A
1.0 A
2C
SPECIFICATIONS
RELAY MODEL
2A
Static Contact Resistance (Initial)
Dielectric Strength Between Contacts (Min)
Dielectric Strength Contacts to Shield (Min)
Dielectric Strength Contacts / Shield to Coil (Min)
Insulation Resistance Between all Isolated pins at 100V 25°C, 40%RH (Min)
Capacitance - Typical No Shield
Capacitance - Typical Shield Guarding
Operate Time - Including Bounce - Typical
Release Time - Typical
Vibration
Shock
Operating Temperature
Storage Temperature
Life Expectancy (Signal Level 1.0V, 10mA) (Typical)
150 mΩ
250 VDC
1000 VDC
1000 VDC
10
12
0.8 pF
0.2 pF
0.5 mS
0.15 mS
150 mΩ
250 VDC
N/A
1000 VDC
10
12
0.8 pF
N/A
0.5 mS
0.15 mS
20G
50G
-20°C to +85°C
-40°C to +100°C
200 mΩ
200 VDC
N/A
1000 VDC
10
9
2.0 pF
N/A
1.5 mS
2.0 mS
500 x 10
6
Ops
500 x 10
6
Ops
100 x 10
6
Ops
As part of the company policy of continued product improvement, specifications may change without notice. Our sales office will be pleased to help you with the latest information on this product range and
the details of our full design and manufacturing service. All products are supplied to our standard conditions of sale unless otherwise agreed in writing.
Phone: (1) 973 777 6900
www.comus-intl.com
Fax: (1) 973 777 8405
Belgium: + 32 (0)12 390400 - Comus Europe Ltd (Assemtech) UK: +44 (0) 1255 862236 - Germany: +49 (0)911 923 15 943 - Netherlands: +31(0)45 54 39 345 - India: +(91) (44) 42023510
©2016 Copyright Comus International, 454 Allwood Road, Clifton NJ 07012, USA
1 / 2016
An ISO 9001 Certified Company
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