
10-2011, Rev. 1011
www.te.com
2011 Tyco Electronics Corporation,
a TE Connectivity Ltd. company
1. Basic Series:
T77 = Miniature PCB relay.
Datasheets and product specification
according to IEC 61810-1 and to be used
only together with the ‘Definitions’ section.
Datasheets and product data is subject to the
terms of the disclaimer and all chapters of
the ‘Definitions’ section, available at
http://relays.te.com/definitions
Datasheets, product data, ‘Definitions’ sec-
tion, application notes and all specifications
are subject to change.
1
Potter & Brumfield
General Purpose Relays
PCB Relays
Miniature PCB Relay T77
Coil Data
Coil voltage range
Operative range, IEC 61810
Coil insulation system according UL
UL Class F (155
°
C) approved insulation system.
5 to 48VDC
2
Class E, F
Coil versions, DC coil, sensitive type, 200mW
Coil
Rated
code
voltage
003
005
006
009
012
024
048
All figures are given for coil without pre-energization, at ambient temperature +23°C
Operate
voltage
VDC
36
Release
voltage
VDC
0.15
0.25
0.3
2.4
Coil
Rated coil
power
mW
200
200
200
200
200
200
200
resistance
±10%
45
125
180
405
720
2880
11520
Coil versions, DC coil, standard type, 450mW
Coil
code
VDC
003
3
005
006
009
012
12
024
24
048
48
All figures are given for coil without pre-energization, at ambient temperature +23°C
Catalog 1308242
Issued 3-03 (PDF Rev. 11-04)
Operate Time
10A @ 30VDC
10A @ 250VAC UL
Release
voltage
VDC
0.15
0.25
0.3
0.45
0.6
2.4
Motor
Motor
Resistive
Resistive
General Purpose
Coil
Rated coil
power
mW
450
450
450
450
450
450
450
resistance
±10%
20
55.6
80
180
320
1280
5120
n
3 to 10A rating
n
Small size
n
Creepage spacings of 6.5mm between coil and contacts
n
4,000Vrms coil to contact dielectric strength
n
UL Class F approved insulation system
Typical applications
Appliances, HVAC, industrial control
Approvals
VDE 40010327, UL E29244
Technical data of approved types on request
Contact Data
Contact arrangement
Rated voltage
Max. switching voltage
Rated current
Contact material
Min. recommended contact load
Frequency of operation
Operate/release time max.
Electrical endurance
3A type
3A, 250VAC res., -30°C to +55°C
5A type
5A, 250VAC res., -30°C to +40°C
5A, 250VAC res, -30°C to +85°C
10A type 10A, 250VAC res., -30°C to +55°C
10A, 250VAC res., -30°C to +85°C
Contact ratings
Mechanical endurance, DC coil
1 form A, 1 NO
30VDC, 250VAC
30VDC, 277VAC
3 to 10A
3A type: Ag
10A type: AgCdO
100mA at 5VDC
360 ops./h
10ms/4ms
100x10
3
ops.
100x10
3
ops.
10x10
3
ops.
100x10
3
ops.
10x10
3
ops.
3A type: 3A 250VAC
5A type: 5A 250VAC
10A type: 10A 250VAC
10x10
6
operations
10
Operational:
6
4
0.2
0.6
0.7
0.1
2
0.3
0.4
5
0.5
6
0.6
8
0.7
9
CContact Current (A)
60
40
30
20
10
100
Life Expectancy
Note:
Graphical data should not be used as a substitute for specific application verification. To be used for estimates only.
Dimensions are in inches over
(millimeters) unless otherwise
specified.
1
Typical Part Number
1. Basic Series:
T77 = Miniature PCB relay.
2. Enclosure:
Operate time
P&B
12
10
8
6
4
2
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Coil Power (W)
Coil Power (W)
Contact Current (A)
T
60
50
40
30
10
20
10
T
Release Time
Operate Time
O
4
)
10
1
0
1
3
4
7
10
Contact Rating 10,
120VAC Res.
Contact Rating 3,
250VAC Res.
Figure 1 - Coil Temperature Rise
100
Note:
Graphical data should not be used as a substitute for specific application verification. To be used for estimates only.
10
-24
2. Enclosure:
P&B
0.7
O
4
)
1
0
1
2
3
4
5
6
7
8
9
10
Contact Rating 10,
120VAC Res.
Contact Rating 3,
250VAC Res.
Life Expectancy
.
7
V
10
Electrical endurance
420
Dimensions are shown for
reference purposes only.
Specifications and availability
subject to change.
Catalog 1308242
Issued 3-03 (PDF Rev. 11-04)
Coil Data @ 20
Voltage:
3 to 24VDC.
Nominal Coil Power:
Coil Temperature Rise:
Max. Coil Power:
Duty Cycle:
Features
File E29244
File LR48471
Coil Data @ 20
Rated
Coil
Voltage
(VDC)
3
5
12
24
T77
10 Amp Miniature
PC Board Relay
Between Mutually Insulated Elements:
10
8
ohms, min. @ 500VDC.
Initial Dielectric Strength
Between Open Contacts:
750VAC 50/60 Hz. (1 minute).
Between Coil and Contacts:
4,000VAC 50/60 Hz. (1 minute).
Coil
Must
Operate
Voltage
(VDC)
2.25
3.75
9.00
18.00
Must
Release
Voltage
(VDC)
0.15
0.25
0.60
1.20
Resistance
(Ohms) 10%
Contact Rating 3
Contact Rating 10
45
20
55
320
125
720
2,800
1,280
Mechanical Data
Termination:
Enclosures (94V-0 Flammability Ratings):
T77S:
T77V:
Weight:
0.36 oz. (9g).
Environmental Data
Temperature Range: Storage:
Vibration: Mechanical:
Shock: Mechanical:
Operating Humidity:
Operate Data @ 20
Operate Time:
Release Time:
Contact Data @ 20
°
C
Arrangements:
1 Form A (SPST-NO).
Material:
Contact rating 3 - Silver.
Contact rating 10 - Silver alloy.
Max. Switching Rate:
300 ops./min. (no load).
30 ops./min. (rated load).
Expected Mechanical Life:
10 million operations.
Expected Electrical Life:
*Denotes test at 70
°
C ambient temperature.
**Denotes test at 85
°
C ambient temperature.
***Denotes test at 105
°
C ambient temperature.
Contact Ratings @ 20
nib after soldering and cleaning.
Contact
UL/CSA Ratings
Rating
3
3A @ 277VAC
10LRA/1.5FLA @ 120VAC
5.4LRA/0.9FLA @ 240VAC
3LRA/1.5FLA @ 120VAC
3A @ 250VAC
3A @ 250VAC UL
3A @ 30VDC
10LRA/1.5FLA @ 120VAC
5.4LRA/0.9FLA @ 240VAC
10A @ 250VAC
Type
General Purpose
6,000
30,000**
30,000**
100,000*
100,000
100,000
100,000
30,000**
30,000**
100,000
100,000
Z
V