A4850 Crydom Company, A4850 Datasheet - Page 3

• Manufacturer Part Number: A4850
• Description: Relay; SSR; Zero-Switching; SPST-NO; Cur-Rtg 50A; Ctrl-V 90-280AC; Vol-Rtg 80-530AC
• Manufacturer: Crydom Company

Specifications of A4850

• Brand/series: Series 1
• Contact Form: SPST-NO
• Current, Leakage, Off-state: 10 mA (RMS) (Max.) @ Rated Voltage
• Current, Rating: 50 A
• Current, Surge: 625 Apeak (Max.)
• Dielectric Strength: 4000 V (RMS) @ 50⁄60 Hz
• Dimensions: 1.80 in. L x 0.90 in. W x 2.30 in. H
• Function: Zero-Switching
• Impedance, Input: 60 Killoohms (Nom.)
• Mounting Type: Panel
• Number Of Pins: 4
• Relay Type: Hybrid
• Resistance, Thermal, Junction To Case: 0.63 °C⁄W
• Standards: UL, CSA, VDE, CE
• Temperature, Ambient, Maximum: 80 °C
• Temperature, Ambient, Minimum: -40 °C
• Termination: Saddle Clamp
• Transient Overvoltage: 800 Vpeak
• Voltage, Control: 280 VAC
• Voltage, Rating: 530 VAC
• Lead Free Status / Rohs Status: RoHS Compliant part

OUTPUT SPECIFICATIONS ➀
Operating Voltage (47-63 Hz) [Vrms]
Max. Load Current
Min. Load Current, [mArms]
Transient Overvoltage [Vpk]
Max. Surge Current, (16.6ms) [Apk]
Max. On-State Voltage Drop @ Rated Current [Vpk]
Thermal Resistance Junction to Case (R θJC ) [˚C/W]
Maximum I 2 t for Fusing, (8.3 msec.) [A 2 sec]
Max. Off-State Leakage Current @ Rated Voltage [mArms]
Min. Off-State dv/dt @ Max. Rated Voltage [V/µsec]
Max. Turn-On Time
Max. Turn-Off Time
Power Factor (Min.) with Max. Load
INPUT SPECIFICATIONS ➀
Control Voltage Range
Max. Reverse Voltage
Max. Turn-On Voltage
Min. Turn-Off Voltage
Nominal Input Impedance
Typical Input Current
G E N E R A L N O T E S
➀
➁
➂
➃
➄
SERIES A48/D48.
Rev. 010305
PAGE 1 OF 3
All parameters at 25˚C unless otherwise specified.
Off-State dv/dt test method per EIA/NARM standard RS-443, paragraph 13.11.1
Heat sinking required, for derating curves see page 2.
Turn-on time for random turn-on versions
is 0.02 msec (DC Control Models).
Input circuitry incorporates active current limiter.
M O D E L N U M B E R S
➂
➃
[Arms]
AC CONTROL
D C CONTROL
DC CONTROL
( D P R E F I X )
See Note
➁
2.0 mA
3-32 Vdc
-32 Vdc
3.0 Vdc
1.0 Vdc
• Panel Mount
• 800V Transient Capability
• Internal Snubber
• Zero Voltage and Random
Turn-On Switching
➄
➄
A4812
D4812
80-530
1.48
140
500
800
1.7
0.5
12
40
81
10
1/2 Cycle (DC Input), 40.0 msec (AC Input)
1/2 Cycle (DC Input), 10.0 msec (AC Input)
© 2005 CRYDOM CORP, Specifications subject to change without notice.
A4825
D4825
80-530
1.02
250
260
500
800
1.7
0.5
25
40
10
2mA @ 120 Vrms, 4mA @ 240 Vrms
S
eries
90-280 Vrms (60Hz)
AC CONTROL
12-90A
A4850
D4850
( A P R E F I X )
80-530
Featuring state-of-the-art Surface
Mount Technology, these SPST-NO
relays deliver proven reliability in the
most demanding applications.
Output consists of an SCR AC switch
and is available in zero-cross, random
turn-on (phase controllable) and ver-
sions with either AC or DC input (coil)
control.
Manufactured in Crydom’s ISO 9001
Certified facility for optimum product
performance and reliability.
1620
0.63
625
500
60K Ohms
800
1.7
0.5
50
40
10
90 Vrms
10 Vrms
---
mp
A48
• 480 V
A4875
D4875
80-530
1000
4150
0.31
500
800
1.7
0.5
75
40
10
ac
,
- AC OUTPUT
D48
A4890
D4890
80-530
1200
6000
0.28
500
800
1.7
0.5
90
40
10