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BS-115C MINIATURE RELAY
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Features

Ultra-miniature size (18.8 *15.4 *15.1 mm) High Switching Capacity up to 12A UL File No. E147052 CSA File No. LR76479-1 TUV File No. R9754066
Coil Rating (at 20C)
Nominal Voltage (VDC) 3 5 6 9 12 24 48 Coil Resistance ( 10%) 25 70 100 220 400 1600 6400 Nominal Current (mA) 120 72 60 40 30 15 7.5 Pick-Up Voltage (VDC) 2.25 3.75 4.50 6.75 9.00 18.00 36.00 Drop-Out Voltage (VDC) 0.3 0.5 0.6 0.9 1.2 2.4 4.8 360 Nominal Power (mW) Consumption
Ordering Information BS - 115C S-A-12A-12VDC
Protection Nil: Flux Free S: Sealed Contact Arrangement. Nil: 1 From C A: 1 From A Contact Rating 7A 12A Coil Voltage See Coil Rating
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Specifications
BS-115C-7A AgCdO 7A 120VAC 5A 240VAC/28VDC 7A 100mA 5VD Max. 100m (initial) Min. 100M at 500VDC 750VAC 50 HZ / 60 HZ (1 minute) 1500VAC 50 HZ / 60 HZ (1 minute) 2000V Max. 10mSec. Max. 5mSec. -30C ~ +55C 1.5mm D.A. 10-55HZ Min. Unerror10G 5,000,000 Operations (no load) 100,000 Operations (no load) Approx. 8g 12A 120VAC 10A 240VAC/28VDC 12A BS-115C-12A 1 From A, 1 From C
Model No. Contact Arrangement Contact Material Contact Rating (at Resistive Load) Max. Switching Voltage Max. Switching Current Min. Switching Load Contact Resistance Insulation Resistance Dielectric Strenght Between Contacts Between Coil & Contact Surge Strength Operate Time Release Time Ambient Temperature Vibration Resistance (Endurance) Shock Resistance Mechanical Life Electrical Life Weight
240VAC, 60VDC
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Relay Terminology: Coil
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Nominal Voltage: A single Value of source voltage design to be applied to the coil. Pick Up Voltage: As the voltage on an unoperated relay is increased, the value at or below which all contacts must function. Drop Out Voltage: As the voltage on an operated relay is decreased, the value at or above which all contacts must revert to their unoperated position. Coil Resistance: This is the DC resistance of the coil in DC type relays for the temperature conditions listed. Nomina Current: The value of current flow in the coil when nomina voltage is impressed on the coil. Nomina Power Consumption: The value of power used by the coil at nomina voltage or DC coils expressed in watts; AC expressed as Volt Amperes. (W or VA = Nomina Voltage* Nomina Current)
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Relay Terminology: Contacts
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Contact Arrangement; Denotes the contact mechanism and number of contacts in the contact circuit. Contact Resistance: This value is the resistance when the contacts are touching each other and the resistance of the terminals and contact spring. Rated Switching Current: The designed value in watts (DC) or Volt Amperes (AC) which can safely be switched by the contacts. Maximum Switching Current: The maximum current which can safely be swithced by the contacts. Maximum Switching Voltage: The maximum open circuit voltage which can safely be switched by the contacts. Minimum Switching Load: The minimum value ofthe voltage and current which can be reliaby switched by the contacts.
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Relay Terminology: Performance
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Insulation Resistance: The resistance value between all mutually isolated conducting sections of all relay, i.e. between coil and contacts, across open contacts and between coil or contacts to any core or frame at ground potential.
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Dielectric Strength: The maximum voltage which can be tolerated by the relay without damage for a specified period of time, usually measured at the same points as insulation resistance. Usually the stated value is in VAC (RMS) for one minute duration.
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Surge Strength: The ability of the device to withstand an abnormal externally produced power surge, as in a lightning strike, or other phenomenon. An impulse test waveform is usually specified, including rise time, peak value and fali time.
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Insulation Resistance: The resistance ofthe insulated part between the contact and coil terminal or the insulated part among several contact terminals, etc.
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* Operate Time: The elapsed time from the initial application of power to the coil, untii the closure of the normally open contacts. (With multiple pole devices the time untii the last contact closes.) * Release Time: The elapsed time from the initial removal of coil power untii the reclosure of the normally closed contacts (last contact with multi pole) this time does not include ceased. * Ambient Temperature: The range of ambient temperature in which the relay can be used without damages in its characteristics or functions. * Vibration Resistance: The resistance to the vibration applicable to the relay, expressed as a displacement and frequency range. * Shock Resistance: The resistance to the shock applicable to the relay, expressed as an acceleration in G. * Mechanical Life: The minimum number of times the relay can be operated under nomina condition (coil voltage, temperature, humidity, etc.) with no load on the contacts. * Electrical Life: The minimum number of times the relay can be operated under nomina condition with a specific load being switched by the contacts. * Structure of Relays: Relays are dassified in 4 different types by the structure of terminals, cover and case, and mounting method ofthe relay.
Item
Open Type
Dust cover Type Flux Free Type
Sealed Type
Structure
Characteristics
Terminals are sealed Most basic construction with base by sealant. All the gaps between Terminals are molded or and there is gap between The joint level between case and base, base and sealed simultaneous. No cover and base, and cover and base is higher terminals are sealed by enclosure been provided. between base and than the PC board sealant. terminals. surface. Insertion mounting No No No Yes Insertion mounting No No No Yes Insertion mounting Yes Yes No Yes Insertion mounting Yes Yes Yes Yes
Mounting Method Automatic Flux Coating Automatic Soldering Automatic Washing Manual Soldering
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Relay Soldering and Washing Guidelines Guidelines
Process
1. Mounting of Relay
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Avoid bending the terminals to make the relay self-clinching. Relay performance cannot be guaranteed if the terminals are bent.
2. Flux Coating
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Adjust the position of the PC board so that flux does not overflow onto the top of it. Use rosin-based flux, which is non-corrosive and requires no washing. Do not use Automatic Flux Coating Method to dust-covertype relays. Do not overflow onto the top of PC Board, in such a case the flux may even penetrate a flux-resistant type relay.
3. Preheating
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Be sure to preheat before soldering. Preheating acts to improve solderability. Preheat according to the following conditions. Temperature Time 100C / 212F or less Within approx. 1 minute
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Note that long exposure to high temperatures (e.g. due to a malfunctioning unit) may affect relay characteristics. Automatic Soldering Flow solder is the optimum method for soldering. Adjust the level of solder so that it does not overflow onto the top ofthe PC board. Unless otherwise specified, solder under the following conditions depending on the type of relay. Solder Temperature Soldering Time Solder Ratio Hand Soldering Keep the tip of the soldering iron clean. Solder Iron Iron Tip Temperature Solder Time 30W to 60W Approx. 300C / 573F Withinapprox. 3 seconds Approx. 250C / 482F Within approx. 5 seconds Sn/Pb = 60/40 or 63/37
4. Soldering
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Relay Soldering and Washing Guidelines Guidelines
Process
5. Cooling
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Immediate air cooling is recommended to prevent deterioration of the relay and surrounding parts due to soldering heat. Although the sealed type relay can be cleaned, avoid immersing the relay into cold liquid (such as washing solvent) immediately after soldering. Doing so may deteriorate the sealing performance.
6. Washing
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Do not wash flux-resistant type relays and dust cover type relays by immersion. Careless washing may cause washing solvent to penetrate the relay. Plastic sealed type relays can be washed by immersion. Use washing solvents shown in Table 6. Use of other washing solvents may damage the relay case and cover, and also cause washing solvent to penetrate the relay, Washing with the boiling methods is recommended. Avoid ultrasonic washing on relays. Use of ultra-sonic cleaning may cause breaks in the coil or slight sticking of contacts due to the ultrasonic energy.
7. Coating
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If the PC board is to be coated to prevent the insulation of the PC board from deteriorating due to corrosive gases and high temperature, note the following. * Do not coat dust-cover type relays and flux-resistant type relays. * Depending on the type, some coating materials may have an adverse affect on relays, select coating materials carefully.
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tel: +48 32 339 69 00 fax: +48 32 339 69 09 e-mail: jm@jm.pl
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