Datasheet HE722A2400 Specification

Reed Relays

(.020)

0.51NOM.

19.05

20.14

Fig. 1: HE700

0.25 NOM.

Fig. 2: HE751

Fig. 3: HE700 (All)

DIL Packaged > HE700

HE700 Miniature Dual In-line Reed Relay

Description

The HE700 is a miniature reed relay in a DIL package with a choice of normally
open, normally open high voltage, normally closed or changeover contacts
capable of switching up to 300Vdc at 10W. It is available with 5V, 12V, and 24V
coils and diode suppression and also available with magnetic shield option.

Features

• Miniature dual in-line package

• Optional coil suppression diode to
protect coil drive circuits

Benefits

Agency Approvals

Agency Agency File Number

E47258

• One relay, various contacts choices
reducing space and cost without
compromising flexibility

• Lower power coil consumption than
competing electromechanical
devices.

• External magnetic shield option

• Diode suppression option

• RoHS Compliant

• Hermetically sealed switching
contact is immune to the effects of
its environment

• Transfer molded package gives
maximum component protection

Note: Contact Littelfuse for specific agency approval ratings.

Dimensions

Dimensions in mm (inch)

(.750)

0.51

(.020)

Table 1: Dimension

Relay Type Body Type L W H

10.16 NOM.
(.400)

3.00 NOM.

15.24 NOM.
(.600)

H

(.118)

0.51

(.020)

0.51NOM.
(.020)

Applications

• Security Systems

• Telecom Equipments

• Process Control Systems

(.793)

10.16 NOM.
(.400)

15.24 NOM.
(.600)

H

3.00 NOM.
(.118)

• Industrial Equipments

• Instrumentation

W

(.010)

9.52

(.375)

HE700

Transfer Molded 19.05 (.750) 7.22 (.284) 5.50 (.217)

External Shield 20.14 (.793) 7.62 (.300) 5.82 (.229)

Specifications are subject to change without notice.

littelfuse.com© 2016 Littelfuse Revised: 03/04/16

Reed Relays

DIL Packaged > HE700

HE700 Miniature Dual In-line Reed Relay

Table 2: Electrical and Operating Characteristics @ 25°C

Column Number 1 2 3 4

Contact Type

Form A

SPST, DPST

Standard

Form C
SPDT-CO
Standard

Form A

SPST

High Voltage

Form B
SPST-NC
Standard

Relay Types HE721, HE722 HE721C/E/R HE751 HE721

Contact Rating

Voltage Hold-off

Resistance

5

Timing

Environmental

Power, Switching

1

Voltage, Switching
Current, Switching

Current, Carry

Across Open Contacts

4

Contacts to Coil
Coil to E. Shield

Between Isolated Terminals

Contact, Initial

Insulation Across Open Contacts

Insulation Between Isolated

Terminals

Operate Time
Release Time

Temperature, Operating

Temperature, Storage

Vibration Resistance

Shock Resistance

Watt - max.

Vdc - max.

A - max.
A - max.

Vdc - min.
Vac - min.
Vac - min.
Vac - min.

Ω max.

Ω min.
Ω min.

ms - max.
ms - max.

°C
°C

G - max. 10-2000 Hz.

G - max. 11 ms ½ sine

10

200

0.5

1.2

250
500
150
500

0.150

10

10

10

10

1.0

1.0

-40 to +85

-40 to +105
20
50

5

175

0.25

1.5

200
500
150
N/A

0.200

10

10

10

10

3.0

3.0

-40 to +85

-40 to +105
20
50

10

300

0.5

1.2

450

4000

N/A
N/A

0.150

10

10

10

10

1.0

1.0

-20 to +85

-40 to +105
20
50

200

250
500
N/A
N/A

0.150
10
10

-40 to +85

-40 to +105

Part Numbering System

10

0.5

1.5

10

10

1.0

1.0

20
50

HE7X - X - X - X - XX

Model Number

HE72 - Standard

HE75 - High Voltage

Number of Contacts

1 and 2

Contact Type

A - Form A (SPST-NO or DPST-NO)

B - Form B (SPST-NC)

C - Form C (SPDT-CO)

E - Form C (SPDT-CO) alternate foot print 1

R - Form C (SPDT-CO) alternate foot print 2

Note: Not all combinations of Part Number suffixes are available. Contact Littelfuse for details.

General Options

00 - No Options
10 - Coil Suppression Diode
20 - Electrostatic Shield
30 - Coil Diode and E.S. Shield
40 - External Magnetic Shield
50 - External Magnetic Shield and Diode

Standard Coil

05 - 5 Volt
12 - 12 Volt
24 - 24 Volt

Specifications are subject to change without notice.

littelfuse.com© 2016 Littelfuse Revised: 03/04/16

Reed Relays

Ø0.61 HOLE

15.24
)

(.300)

DIL Packaged > HE700

HE700 Miniature Dual In-line Reed Relay

Table 3: Coil Characteristics @ 25°C

Contact

Form

1A

SPST-NO

1B

SPST-NC

1C

SPDT-CO

1C

SPDT-CO

1C

SPDT-CO

2A

DPST-NO

1A

SPST-NO

High Voltage

Notes:

1. HE721B - Exceeding recommended voltage may cause contact reclosure.

2. Optional external magnetic shield not available on Form B relays.

Electrical and

Operating

Characteristics

See Table 2

Column 1

See Table 2

Column 4

See Table 2

Column 2

See Table 2

Column 2

See Table 2

Column 2

See Table 2

Column 1

See Table 2

Column 3

Dimensions Part Number

HE721A0500

Figure 1

HE721A1200
HE721A2400

HE721B0500

Figure 1

HE721B1200
HE721B2400

HE721C0500

Figure 1

HE721C1200
HE721C2400

HE721E0500

Figure 1

HE721E1200
HE721E2400

HE721R0500

Figure 1

HE721R1200
HE721R2400

HE722A0500

Figure 1

HE722A1200
HE722A2400

HE751A0500

Figure 2

HE751A1200
HE751A2400

Nominal

Coil Voltage

Vdc

5
12
24

5
12
24

5
12
24

5
12
24

5
12
24

5
12
24

5
12
24

Coil
Resistance
±10% Ohms

500
1000
2150

500

500
2150

200

500
2000

200

500
2000

200

500
2000

200

500
2150

500
1000
2150

Must

Operate

Vdc

3.75

8.0

16.0

3.75

9.0

18.0

3.75

8.0

16.0

3.75

8.0

16.0

3.75

8.0

16.0

3.75

8.0

16.0

3.75

8.0

16.0

Must

Release

Vdc

0.5

1.0

2.0

0.5

1.0

2.0

0.5

1.0

2.0

0.5

1.0

2.0

0.5

1.0

2.0

0.5

1.0

2.0

0.5

1.0

2.0

Maximum

Coil Voltage

Vdc

12
31
46

Notes 1 and 2

6.5
14
28

14
22
44

14
22
44

14
22
44

12
22
46

12
31
46

Top View 2.54mm (0.1") Grid

Dot on Case: Pin 1

Numbers not printed on case.

HE700 PCB LAYOUT (Bottom View)

(.024)

2.54

(.100)

12.70
(.500)

7.62

Packaging

Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width

Bulk Bulk 1000/5000 N/A N/A

Specifications are subject to change without notice.

(.600

littelfuse.com© 2016 Littelfuse Revised: 03/04/16

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Littelfuse:
HE721A1240 HE721R1200 HE721A0520 HE721A1230 HE721A2420 HE721A1250 HE721R1210 HE722A2440

HE722A2450 HE721C1240 HE721C0550 HE722A1220 HE721R2400 HE722A2420 HE721C0530 HE722A1240
HE721A2440 HE721C0520 HE721A2430 HE721C1220 HE722A1230 HE751A2400 HE721C1250 HE722A0530
HE721C2440 HE721A0530 HE721C0540 HE722A1250 HE751A1200 HE722A0540 HE722A2430 HE721A1220
HE721R2410 HE722A0550 HE751A0500 HE721C1230 HE722A0520 HE721A0550 HE721A2450 HE721C2430
HE721C2420 HE721R0500 HE721A0540 HE721C2450 HE751A0510 HE721A0500 HE722A1200 HE722A2400
HE721A0510 HE722A0510 HE721A2410 HE722A2410 HE751A1210 HE721C1210 HE721C0500 HE722A1210
HE722A0500 HE721C0510 HE721C1200 HE721C2410 HE721C2400 HE721A1210 HE721R0510 HE721A2400
HE751A2410 HE721A1200 HE722A0600 HE722A0610 HE721B0510 HE721E0510 HE721E2400