H12C Series
• Ratings from 25A to 125A @ 48-660 VAC
• SCR output for heavy industrial loads
• AC or DC control
• Zero-crossing (resistive loads) or random-fire (inductive loads) output
PRODUCT SELECTION
Control Voltage
4-15 VDC
90-140 Vrms
25A
H12CD4825
H12CA4825
AVAILABLE OPTIONS
OUTPUT SPECIFICATIONS (1)
Description
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25A
48-660
1200
1.0
500
25
150
250
1.6
1.02
260
0.5
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50A
48-660
1200
1.0
500
50
150
625
1.6
0.63
1620
0.5
Operating Voltage (47-63Hz) [Vrms]
Transient Overvoltage [Vpk]
Maximum Off-State Leakage Current @ Rated Voltage [mArms]
Minimum Off-State dv/dt @ Maximum Rated Voltage [V/µsec] (2)
Maximum Load Current (3) [Arms]
Minimum Load Current [mArms]
Maximum Surge Current (16.6ms) [Apk]
Maximum On-State Voltage Drop @ Rated Current [Vpk]
Thermal Resistance Junction to Case (Rjc) [°C/W]
Maximum I² t for Fusing (8.3 msec) [A² sec]
Minimum Power Factor (with Maximum Load)
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50A
90A
H12CD4850
H12CA4850
H12CD4890
H12CA4890
90A
48-660
1200
1.0
500
90
150
1200
1.6
0.28
6000
0.5
INPUT SPECIFICATIONS (1)
Description
Control Voltage Range
Minimum Turn-On Voltage
Minimum Turn-Off Voltage
Typical Input Current
Nominal Input Impedance
Maximum Turn-On Time [msec] (4)
Maximum Turn-Off Time [msec]
H12CD
4-15 VDC
4.0 VDC
1.0 VDC
15 mA
300 Ohm
1/2 Cycle
1/2 Cycle
H12CA
90-140 Vrms
90 VAC
10.0 VAC
15 mA
8K Ohm
10
40
GENERAL SPECIFICATIONS
Description
Dielectric Strength, Input/Output/Base (50/60Hz)
Minimum Insulation Resistance (@ 500 V DC)
Maximum Capacitance, Input/Output
Ambient Operating Temperature Range
Ambient Storage Temperature Range
Weight (typical)
Encapsulation
Terminals
Recommended Terminal Screw Torque Range:
Fastons:
GENERAL NOTES
1)
2)
3)
4)
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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 DC random turn-on versions is 0.02 msec (DC Control Models).
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Parameters
4000 Vrms
10
9
Ohm
8 pF
-40 to 80 °C
-40 to 125 °C
3 oz (86.5 g)
Thermally conductive Epoxy
Screw and saddle Clamps Furnished, Unmounted
6-32 Screws - 10 in/lbs. 8-32 & 10-32 Screws - 20 in. lbs. (Screws dry without grease)
Double pair* (50A model only) Caution: User must connect to both pairs
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