OKI Reeds

HASCO is a MASTER Value-Added Distributor of OKI Reed Switches. Ideal reed switch applications include liquid level sensors, magnetic contacts, proximity reed devices and reed relays. These reed switches are designed for long life and feature the ability to remain idle for years without increased contact resistance.

Specifications

File No.:E75887
			ORD213	ORD211	ORD324	ORD228
Electrical Characteristics	Contact		1A	1A	1A	1A
	Pull-in Available in ±5 AT ranges		10 ~ 40	10 ~ 40	10 ~ 50	10 ~ 50
	Drop-out	[AT] min.	5	5	5	5
	Contact resistance(Initial)	[mΩ] max.	200	100	100	100
	Breakdown voltage	[DCV] min.	150	150	200	200
	Insulation resistance	[Ω] min.	109	109	1010	109
	Electrostatic capacitance	[pF] max.	0.4	0.2	0.3	0.3
	Contact rating	[VA,W]	1.0	1.0	10	10
	Maximum switching voltage	[V]	AC24 / DC24	AC24 / DC24	AC140 /DC200	AC110 / DC100
	Maximum switching current	[A]	DC 0.1	DC 0.1	DC 0.5	DC 0.4
	Maximum carry current	[A]	0.3	0.3	1.0	1.0
Operating Characteristics	Operating time	[ms] max.	0.3	0.3	0.3	0.3
	Bounce time	[ms] max.	0.3	0.3	0.3	0.3
	Release time	[ms] max.	0.05	0.05	0.05	0.05
	Resonant frequency	[Hz]	1100 ± 500	7500 ± 500	5000 ± 400	5300 ± 300
	Maximum operating frequency	[Hz]	500	500	500	500
Standard coil	Coil resistance	[Ω]	600	600	450	450
	No. of turns	[T]	5000	5000	5000	5000
	Dimensions	[mm]	Φ3.3 × 10	Φ3.3 × 10	Φ3.7 x 15	Φ3.7 × 15
	Type No.		8	8	6	6
Features (Contact material)			Ultra-miniature (RH)	Ultra-miniature (RH)	General purpose miniature (RH)	General purpose miniature (RH)

File No.:E75887
			ORD9215	ORD221	ORD229	ORD2210
Electrical Characteristics	Contact		1A	1A(offset)	1A	1A
	Pull-in Available in ±5 AT ranges		10 ~ 50	1 ~ 40	15 ~ 40	15 ~ 60
	Drop-out	[AT] min.	4	5	6	7
	Contact resistance(Initial)	[mΩ] max.	150	100	100	100
	Breakdown voltage	[DCV] min.	200	200	600	250
	Insulation resistance	[Ω] min.	109	109	1010	1010
	Electrostatic capacitance	[pF] max.	0.3	0.3	0.5	0.5
	Contact rating	[VA,W]	10	10	50	50
	Maximum switching voltage	[V]	AC110 / DC100	AC100 / DC100	AC300 / DC350	AC70(VA) / DC50(W)
	Maximum switching current	[A]	0.3	DC 0.3	DC 0.5	AC0.7 / DC1.0
	Maximum carry current	[A]	1.0	1.0	2.5	2.5
Operating Characteristics	Operating time	[ms] max.	0.4	0.3	0.6	0.5
	Bounce time	[ms] max.	0.4	0.5	0.5	0.5
	Release time	[ms] max.	0.05	0.5	0.05	0.05
	Resonant frequency	[Hz]	3700 ± 300	2750 ± 250	2500 ± 250	2500 ± 250
	Maximum operating frequency	[Hz]	500	500	500	500
Standard coil	Coil resistance	[Ω]	450	450	500	500
	No. of turns	[T]	5000	5000	5000	5000
	Dimensions	[mm]	Φ3.7 × 15	Φ3.7 × 15	Φ4.6 × 21	Φ4.6 × 21
	Type No.		6	6	3	3
Features (Contact material)			General purpose miniature (RH)	Miniature offset (RH)	High breakdown voltage (RH)	High power (RH)

File No.:E75887
			ORD2211	ORD2212	ORD2210V	ORT551
Electrical Characteristics	Contact		1A	1A	1A	1C
	Pull-in Available in ±5 AT ranges		15 ~ 60	15 ~ 45	20 ~ 60	10 ~ 30
	Drop-out	[AT] min.	8	RLS/OP>0.8	7	5
	Contact resistance(Initial)	[mΩ] max.	100	100	100	100
	Breakdown voltage	[DCV] min.	200	150	1000	200
	Insulation resistance	[Ω] min.	109	109	1010	109
	Electrostatic capacitance	[pF] max.	0.3	0.5	0.5	1.5
	Contact rating	[VA,W]	50	10	100	3
	Maximum switching voltage	[V]	AC100 / DC100	AC100 / DC100	AC300 / DC350	AC30 / DC30
	Maximum switching current	[A]	0.5 In rush 3A	DC 0.2	DC 1.0 max.	DC 0.2
	Maximum carry current	[A]	2.5	0.5	2.5 max.	0.5
Operating Characteristics	Operating time	[ms] max.	0.6	0.4	0.5	1.0
	Bounce time	[ms] max.	0.4	1.0	0.5	(NC)1.5 / (NO)1.0
	Release time	[ms] max.	0.05	0.05	0.05	0.5
	Resonant frequency	[Hz]	4600 ± 500	4200 ± 300	2500 ± 250	6000 ± 4000
	Maximum operating frequency	[Hz]	500	500	500	200
Standard coil	Coil resistance	[Ω]	450	450	450	550
	No. of turns	[T]	5000	5000	5000	5000
	Dimensions	[mm]	Φ3.7 × 15	Φ3.7 × 15	Φ3.7 × 15	Φ4.6 × 10
	Type No.		6	6	6	10
Features (Contact material)			Lamp load 3.4W Low sound (RH)	Closed different type (RH)	Vacuum (RH)	Ultra- miniature transfer (RH)

*Magnets also available, Available Cut and Bent as Well as on Reed.

Notes:
1.Pull-in & drop-out were measured by using OKI standard coil.*This value of drop-out is prescribed when pull-in is over 20AT. When pull-in is less than 20AT, drop-out are 5 MIN & RLS/OP >0.7, Tolerance at measurement is ±2AT. (Fig.1)

2.Measurements are made by the four-terminal voltage reduction method where the 100AT excitation is given to the switch using the OKI standard coil to close the contacts, and 10mA current is applied.

3.This value varies depending on the pull-in value (contact gap). In this measurement, the pull-in value is about 20AT.(MIL-STD-202D METHOD 301)

4.Measurement is made by using a DC 100V super megger.(MIL-STD-202D METHOD 302)

5.The value shows the time required for the contacts to cause the first contact bounce after applying the voltage to the OKI standard test coil. The times is shown at top in Fig.2

6.Bouncing is caused when the contact close. Bounce time means the time when opening and closing of the contacts are being repeated before the contacts are completely closed. Shown by T bounce.

7.Release time means the time from the morment the voltage applied to the test coil as removed to the moment the contacts open. Shown by Tris.

8.Resonant frequency is a vibrating frequency inherent to the reed switch. Avoid application of vibration at this frequency to the switch, otherwise it will cause misoperation.

9.The reed switch can be operated with a frequency higher than the maximum operating frequency. However, operation with such a frequency will often cause an endless chattering at the time of ON operation. It is recommended for the designer to take the maximum operationg frequency into consideration when designing systems and circuits.

10.Dimensions of standard coil.
A:Inner diameter of standard coil.
B:Length of standard coil.

11.If a shock of more than 30G is applied to a reed switch, the pull-in value of the switch will be often caused to change from the standard specification. Therefore, it is recommended not to use the reed switch which has been given such a shock.

12.If a vibration of more than 1 kHz is applied to a reed switch, even a very small acceleration to it will easily cause the switch to misoperate to close due to its resonant frequency.

13.In practice the reed switch can operate beyond the specified range. In case of magnet driving. however, some magnets show decrease of magnetic flux even at the lowest temperature of the range depending on their temperature characteristics. There fore, it is recommended to consider the range as a general guide line.

14.The actual tensile strength is more than 5 kg (breakdown). However, considering the lead not to get out of position, the value for the static load is shown here.