RL-1256
RADIAL LEADED
POWER LINE CHOKES
DESCRIPTION
• Power Line Chokes
EPOXY
COATED
CORES
FEATURES & APPLICATIONS
• Available in 367 standard values covering a wide range
of inductance and current
• High saturation flux density material is ideal for use
in switching regulated power supply applications
• Ideal wherever high current choke values in a small
physical size are needed
• Typical applications include: power amplifiers, power supplies,
SCR and TRIAC controls, speaker crossover networks and filters
Verify operation with sample in actual circuit. Order samples at www.rencousa.com.
ENVIRONMENTAL DATA
•
•
Storage temperature range:
-55°C to +130°C
Operating temperature range:
-40°C to +130°C
PACKAGING INFORMATION
• Packaging information: pg. 493
MECHANICAL DIMENSIONS
U.S. Standard (mm)
PART NUMBER
RL-1256-1
RL-1256-2
RL-1256-3
RL-1256-4
RL-1256-5
RL-1256-6
RL-1256-7
RL-1256-8
A (MAX.)
0.66 (16.76)
0.83 (21.08)
1.10 (27.94)
1.60 (40.64)
1.60 (40.64)
2.00 (50.80)
2.40 (60.96)
2.40 (60.96)
B (MAX.)
0.85 (21.59)
0.85 (21.59)
0.85 (21.59)
1.10 (27.94)
1.50 (38.10)
1.50 (38.10)
1.50 (38.10)
2.60 (66.04)
C (REF.)
Clearance Hole
For 4/40
Screw
Clearance Hole
For 8/32
Screw
With Washer
D (MIN.)
0.50 (12.70)
0.50 (12.70)
0.50 (12.70)
0.50 (12.70)
0.50 (12.70)
0.50 (12.70)
0.50 (12.70)
0.50 (12.70)
PART NUMBER PART WEIGHT
RL-1256-1
RL-1256-2
RL-1256-3
RL-1256-4
RL-1256-5
RL-1256-6
RL-1256-7
RL-1256-8
13.0g (0.46oz)
22.0g (0.78oz)
38.0g (1.34oz)
118.0g (4.16oz)
157.0g (5.54oz)
220.0g (7.77oz)
334.0g (12.13oz)
583.0g (20.57oz)
SEE SPECIFICATION TABLES FOR “E” DIMENSIONS
SIDE VIEW
B
BOTTOM VIEW
SCHEMATIC
ST
A
C
E
FN
D
CHOKES
RENCO ELECTRONICS INC.
595 International Place, Rockledge, FL 32955-4200 USA • www.rencousa.com • ISO 9001 Certified
Toll Free Engineering Hot Line: 800.645.5828 • P: 321.637.1000 • F: 321.637.1600
RL-1256-1
RL-1256-1
Renco Part No.
RL-1256-1-1.0
RL-1256-1-1.2
RL-1256-1-1.5
RL-1256-1-1.8
RL-1256-1-2.2
RL-1256-1-2.7
RL-1256-1-3.3
RL-1256-1-3.9
RL-1256-1-4.7
RL-1256-1-5.6
RL-1256-1-6.8
RL-1256-1-8.2
RL-1256-1-10
RL-1256-1-12
RL-1256-1-15
RL-1256-1-18
RL-1256-1-22
RL-1256-1-27
RL-1256-1-33
RL-1256-1-39
RL-1256-1-47
RL-1256-1-56
RL-1256-1-68
RL-1256-1-82
RL-1256-1-100
RL-1256-1-120
RL-1256-1-150
RL-1256-1-180
RL-1256-1-220
RL-1256-1-270
RL-1256-1-330
RL-1256-1-390
RL-1256-1-470
RL-1256-1-560
Inductance
(µH)
1.00
1.20
1.50
1.80
2.20
2.70
3.30
3.90
4.70
5.60
6.80
8.20
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
100.0
120.0
150.0
180.0
220.0
270.0
330.0
390.0
470.0
560.0
DCR
Max.
(Ohms)
0.003
0.003
0.004
0.004
0.005
0.005
0.005
0.006
0.007
0.007
0.008
0.009
0.010
0.011
0.015
0.016
0.025
0.030
0.040
0.046
0.062
0.069
0.077
0.083
0.095
0.127
0.181
0.217
0.240
0.300
0.336
0.460
0.636
0.696
Isat
(A)
87.0
68.0
56.0
56.0
47.0
47.0
40.0
36.0
32.0
29.0
26.0
24.5
21.2
19.0
17.5
16.5
15.8
14.4
13.2
11.8
11.0
10.0
8.9
8.2
7.5
5.8
5.6
5.1
4.3
4.1
3.8
3.3
3.2
2.9
Irms
(A)
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
7.2
7.2
5.5
4.5
4.0
4.0
2.8
2.8
2.8
2.8
2.8
2.0
1.6
1.6
1.6
1.6
1.3
1.0
0.8
0.8
Dimension “E”
Approx. Inches
(mm)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.550 (13.97)
0.500 (12.70)
0.500 (12.70)
0.500 (12.70)
0.500 (12.70)
0.406 (10.31)
0.469 (11.91)
0.469 (11.91)
0.485 (12.32)
0.500 (12.70)
0.500 (12.70)
0.500 (12.70)
0.480 (12.19)
0.480 (12.19)
0.480 (12.19)
0.480 (12.19)
0.480 (12.19)
0.480 (12.19)
0.480 (12.19)
0.450 (11.43)
0.450 (11.43)
Pin
Dimension Approx.
Inches (mm)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.048 (1.22)
0.048 (1.22)
0.043 (1.09)
0.039 (0.99)
0.035 (0.89)
0.035 (0.89)
0.031 (0.78)
0.031 (0.78)
0.031 (0.78)
0.031 (0.78)
0.031 (0.78)
0.028 (0.71)
0.025 (0.64)
0.025 (0.64)
0.025 (0.64)
0.022 (0.56)
0.022 (0.56)
0.022 (0.56)
0.020 (0.51)
0.018 (0.46)
NOTES:
1. INDUCTANCE ± 10% TESTED AT 10 kHz , 0.1 Vrms, VALUES
BELOW 10µH ARE ± 20%
2. 500 VOLTS DC HIPOT FOR 1 MINUTE (WINDING TO I.D. OF CORE)
3. ELECTRICAL SPECIFICATIONS MEASURED AT 25ºC
4. Isat - DC CURRENT THAT WILL CAUSE INDUCTANCE TO
DROP BY 5%
5. Irms - CURRENT THAT CAUSES THE TEMPERATURE TO
RISE APPROX. 40ºC ABOVE AMBIENT OF 25ºC
6. LEADS FOR PC MOUNTING TINNED TO WITHIN 1/16” OF BODY
7. PART FINISHED WITH 135ºC POLYOLEFIN SLEEVING THAT MEETS
UL-224 VW-1
8. ENCAPSULATED TO MIL-PRF-27 AVAILABLE, SEE
RENCO RL-1324 SERIES
9. CENTER HOLE FOR MECHANICAL MOUNTING
10. SPACER AVAILABLE AT ADDITIONAL COST TO
FACILITATE PC BOARD WASHING
11. NON-LISTED VALUES AVAILABLE ON REQUEST
595 International Place, Rockledge, FL 32955-4200 USA • www.rencousa.com • ISO 9001 Certified
Toll Free
Engineering Hot Line: 800.645.5828 • P: 321.637.1000 • F: 321.637.1600
CHOKES
RENCO ELECTRONICS INC.
RL-1256-2
RL-1256-2
Renco Part No.
RL-1256-2-1.0
RL-1256-2-1.2
RL-1256-2-1.5
RL-1256-2-1.8
RL-1256-2-2.2
RL-1256-2-2.7
RL-1256-2-3.3
RL-1256-2-3.9
RL-1256-2-4.7
RL-1256-2-5.6
RL-1256-2-6.8
RL-1256-2-8.2
RL-1256-2-10
RL-1256-2-12
RL-1256-2-15
RL-1256-2-18
RL-1256-2-22
RL-1256-2-27
RL-1256-2-33
RL-1256-2-39
RL-1256-2-47
RL-1256-2-56
RL-1256-2-68
RL-1256-2-82
RL-1256-2-100
RL-1256-2-120
RL-1256-2-150
RL-1256-2-180
RL-1256-2-220
RL-1256-2-270
RL-1256-2-330
RL-1256-2-390
RL-1256-2-470
RL-1256-2-560
Inductance
(µH)
1.00
1.20
1.50
1.80
2.20
2.70
3.30
3.90
4.70
5.60
6.80
8.20
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
100.0
120.0
150.0
180.0
220.0
270.0
330.0
390.0
470.0
560.0
DCR
Max.
(Ohms)
0.003
0.003
0.003
0.003
0.004
0.005
0.005
0.005
0.005
0.006
0.007
0.007
0.009
0.009
0.013
0.018
0.019
0.026
0.029
0.030
0.035
0.039
0.053
0.060
0.080
0.090
0.098
0.110
0.150
0.213
0.305
0.320
0.355
0.388
Isat
(A)
108.0
108.0
83.0
68.0
68.0
58.0
58.0
50.0
50.0
44.0
39.0
36.0
30.0
27.0
25.0
22.0
21.0
20.5
18.6
17.0
15.1
13.6
12.7
11.3
10.4
9.4
8.6
7.8
7.0
6.3
5.2
4.9
4.5
4.1
Irms
(A)
11.4
11.4
11.4
11.4
11.4
11.4
11.4
11.4
11.4
11.4
11.4
11.4
11.4
11.4
9.0
7.2
7.2
5.5
5.5
5.5
5.5
5.5
4.8
4.8
4.0
4.0
4.0
4.0
2.8
2.0
1.6
1.6
1.6
1.6
Dimension “E”
Approx. Inches
(mm)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.620 (15.75)
0.625 (15.88)
0.630 (16.00)
0.630 (16.00)
0.546 (13.87)
0.546 (13.87)
0.594 (15.09)
0.625 (15.88)
0.625 (15.88)
0.656 (16.66)
0.656 (16.66)
0.593 (15.06)
0.593 (15.06)
0.593 (15.06)
0.671 (17.04)
0.593 (15.06)
0.562 (14.27)
0.590 (14.99)
0.590 (14.99)
0.590 (14.99)
0.590 (14.99)
Pin
Dimension Approx.
Inches (mm)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.060 (1.52)
0.054 (1.37)
0.048 (1.22)
0.048 (1.22)
0.043 (1.09)
0.043 (1.09)
0.043 (1.09)
0.041 (1.04)
0.041 (1.04)
0.039 (0.99)
0.039 (0.99)
0.033 (0.84)
0.033 (0.84)
0.033 (0.84)
0.033 (0.84)
0.031 (0.79)
0.030 (0.76)
0.025 (0.66)
0.025 (0.66)
0.025 (0.66)
0.025 (0.66)
RL-1256-2 TABLE CONTINUES ON FOLLOWING PAGE
NOTES:
1. INDUCTANCE ± 10% TESTED AT 10 kHz , 0.1 Vrms, VALUES
BELOW 10µH ARE ± 20%
2. 500 VOLTS DC HIPOT FOR 1 MINUTE (WINDING TO I.D. OF CORE)
3. ELECTRICAL SPECIFICATIONS MEASURED AT 25ºC
4. Isat - DC CURRENT THAT WILL CAUSE INDUCTANCE TO
DROP BY 5%
5. Irms - CURRENT THAT CAUSES THE TEMPERATURE TO
RISE APPROX. 40ºC ABOVE AMBIENT OF 25ºC
6. LEADS FOR PC MOUNTING TINNED TO WITHIN 1/16” OF BODY
7. PART FINISHED WITH 135ºC POLYOLEFIN SLEEVING THAT MEETS
UL-224 VW-1
8. ENCAPSULATED TO MIL-PRF-27 AVAILABLE, SEE
RENCO RL-1324 SERIES
9. CENTER HOLE FOR MECHANICAL MOUNTING
10. SPACER AVAILABLE AT ADDITIONAL COST TO
FACILITATE PC BOARD WASHING
11. NON-LISTED VALUES AVAILABLE ON REQUEST
CHOKES
RENCO ELECTRONICS INC.
595 International Place, Rockledge, FL 32955-4200 USA • www.rencousa.com • ISO 9001 Certified
Toll Free Engineering Hot Line: 800.645.5828 • P: 321.637.1000 • F: 321.637.1600
RL-1256-2, RL-1256-3
RL-1256-2
Renco Part No.
RL-1256-2-680
RL-1256-2-820
RL-1256-2-1000
RL-1256-2-1200
RL-1256-2-1500
RL-1256-2-1800
RL-1256-2-2200
Inductance
(µH)
680.0
820.0
1000.0
1200.0
1500.0
1800.0
2200.0
DCR
Max.
(Ohms)
0.430
0.590
0.818
1.14
1.26
1.39
1.54
Isat
(A)
3.7
3.4
3.1
2.7
2.4
2.2
2.0
Irms
(A)
1.6
1.3
1.0
0.8
0.8
0.8
0.8
Dimension “E”
Approx. Inches
(mm)
0.590 (14.99)
0.590 (14.99)
0.590 (14.99)
0.590 (14.99)
0.590 (14.99)
0.590 (14.99)
0.590 (14.99)
Pin
Dimension Approx.
Inches (mm)
0.025 (0.66)
0.022 (0.56)
0.020 (0.50)
0.020 (0.50)
0.020 (0.50)
0.020 (0.50)
0.020 (0.50)
RL-1256-3
Renco Part No.
RL-1256-3-1.0
RL-1256-3-1.2
RL-1256-3-1.5
RL-1256-3-1.8
RL-1256-3-2.2
RL-1256-3-2.7
RL-1256-3-3.3
RL-1256-3-3.9
RL-1256-3-4.7
RL-1256-3-5.6
RL-1256-3-6.8
RL-1256-3-8.2
RL-1256-3-10
RL-1256-3-12
RL-1256-3-15
RL-1256-3-18
RL-1256-3-22
RL-1256-3-27
RL-1256-3-33
RL-1256-3-39
RL-1256-3-47
Inductance
(µH)
1.00
1.20
1.50
1.80
2.20
2.70
3.30
3.90
4.70
5.60
6.80
8.20
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
DCR
Max.
(Ohms)
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.004
0.004
0.006
0.008
0.009
0.010
0.011
0.012
0.017
0.022
0.024
Isat
(A)
116.0
116.0
116.0
90.0
90.0
74.0
74.0
62.0
54.0
54.0
47.0
42.0
38.0
35.0
32.0
29.0
25.0
23.0
20.0
19.1
19.0
Irms
(A)
21.0
21.0
21.0
21.0
21.0
21.0
21.0
21.0
21.0
21.0
21.0
21.0
17.0
13.5
13.5
13.5
13.5
13.5
13.5
11.4
9.0
Dimension “E”
Approx. Inches
(mm)
0.800 (20.32)
0.800 (20.32)
0.800 (20.32)
0.800 (20.32)
0.800 (20.32)
0.800 (20.32)
0.800 (20.32)
0.800 (20.32)
0.800 (20.32)
0.800 (20.32)
0.800 (20.32)
0.800 (20.32)
0.700 (17.78)
0.690 (17.53)
0.690 (17.53)
0.690 (17.53)
0.790 (20.07)
0.790 (20.07)
0.790 (20.07)
0.790 (20.07)
0.750 (19.05)
Pin
Dimension Approx.
Inches (mm)
0.084 (2.13)
0.084 (2.13)
0.084 (2.13)
0.084 (2.13)
0.084 (2.13)
0.084 (2.13)
0.084 (2.13)
0.084 (2.13)
0.084 (2.13)
0.084 (2.13)
0.084 (2.13)
0.084 (2.13)
0.075 (1.90)
0.068 (1.73)
0.068 (1.73)
0.068 (1.73)
0.068 (1.73)
0.068 (1.73)
0.060 (1.52)
0.054 (1.37)
0.054 (1.37)
RL-1256-3 TABLE CONTINUES ON FOLLOWING PAGE
NOTES:
1. INDUCTANCE ± 10% TESTED AT 10 kHz , 0.1 Vrms, VALUES
BELOW 10µH ARE ± 20%
2. 500 VOLTS DC HIPOT FOR 1 MINUTE (WINDING TO I.D. OF CORE)
3. ELECTRICAL SPECIFICATIONS MEASURED AT 25ºC
4. Isat - DC CURRENT THAT WILL CAUSE INDUCTANCE TO
DROP BY 5%
5. Irms - CURRENT THAT CAUSES THE TEMPERATURE TO
RISE APPROX. 40ºC ABOVE AMBIENT OF 25ºC
6. LEADS FOR PC MOUNTING TINNED TO WITHIN 1/16” OF BODY
7. PART FINISHED WITH 135ºC POLYOLEFIN SLEEVING THAT MEETS
UL-224 VW-1
8. ENCAPSULATED TO MIL-PRF-27 AVAILABLE, SEE
RENCO RL-1324 SERIES
9. CENTER HOLE FOR MECHANICAL MOUNTING
10. SPACER AVAILABLE AT ADDITIONAL COST TO
FACILITATE PC BOARD WASHING
11. NON-LISTED VALUES AVAILABLE ON REQUEST
595 International Place, Rockledge, FL 32955-4200 USA • www.rencousa.com • ISO 9001 Certified
Toll Free
Engineering Hot Line: 800.645.5828 • P: 321.637.1000 • F: 321.637.1600
CHOKES
RENCO ELECTRONICS INC.
RL-1256-3, RL-1256-4
RL-1256-3
Renco Part No.
RL-1256-3-56
RL-1256-3-68
RL-1256-3-82
RL-1256-3-100
RL-1256-3-120
RL-1256-3-150
RL-1256-3-180
RL-1256-3-220
RL-1256-3-270
RL-1256-3-330
RL-1256-3-390
RL-1256-3-470
RL-1256-3-560
RL-1256-3-680
RL-1256-3-820
RL-1256-3-1000
RL-1256-3-1200
RL-1256-3-1500
RL-1256-3-1800
RL-1256-3-2200
RL-1256-3-2700
RL-1256-3-3300
RL-1256-3-3900
RL-1256-3-4700
Inductance
(µH)
56.0
68.0
82.0
100.0
120.0
150.0
180.0
220.0
270.0
330.0
390.0
470.0
560.0
680.0
820.0
1000.0
1200.0
1500.0
1800.0
2200.0
2700.0
3300.0
3900.0
4700.0
DCR
Max.
(Ohms)
0.026
0.029
0.032
0.034
0.046
0.064
0.072
0.080
0.110
0.122
0.169
0.187
0.205
0.256
0.288
0.426
0.462
0.518
0.705
1.02
1.14
1.27
1.67
1.86
Isat
(A)
17.5
15.6
14.0
13.2
12.1
10.8
9.7
8.7
7.9
7.1
6.7
6.0
5.5
5.0
4.5
4.1
3.7
3.4
2.8
2.5
2.3
2.0
1.8
1.7
Irms
(A)
9.0
9.0
9.0
9.0
7.2
5.5
5.5
5.5
4.5
4.5
4.0
4.0
4.0
2.8
2.8
2.0
2.0
2.0
1.6
1.3
1.3
1.3
1.0
1.0
Dimension “E”
Approx. Inches
(mm)
0.750 (19.05)
0.750 (19.05)
0.750 (19.05)
0.781 (19.84)
0.750 (19.05)
0.781 (19.84)
0.781 (19.84)
0.781 (19.84)
0.750 (19.05)
0.812 (20.62)
0.750 (19.05)
0.750 (19.05)
0.750 (19.05)
0.718 (18.24)
0.843 (22.17)
0.750 (19.05)
0.750 (19.05)
0.750 (19.05)
0.770 (19.56)
0.770 (19.56)
0.770 (19.56)
0.750 (19.05)
0.750 (19.05)
0.750 (19.05)
Pin
Dimension Approx.
Inches (mm)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.054 (1.37)
0.051 (1.30)
0.043 (1.09)
0.043 (1.09)
0.041 (1.04)
0.039 (0.99)
0.039 (0.99)
0.035 (0.89)
0.035 (0.89)
0.035 (0.89)
0.031 (0.79)
0.031 (0.79)
0.028 (0.71)
0.028 (0.71)
0.028 (0.71)
0.022 (0.56)
0.022 (0.56)
0.022 (0.56)
0.022 (0.56)
0.020 (0.51)
0.020 (0.51)
RL-1256-4
Renco Part No.
RL-1256-4-1.8
RL-1256-4-2.2
RL-1256-4-2.7
RL-1256-4-3.3
RL-1256-4-3.9
RL-1256-4-4.7
Inductance
(µH)
1.80
2.20
2.70
3.30
3.90
4.70
DCR
Max.
(Ohms)
0.002
0.002
0.003
0.003
0.003
0.003
Isat
(A)
150.0
150.0
115.0
115.0
95.0
95.0
Irms
(A)
27.0
27.0
27.0
27.0
27.0
27.0
Dimension “E”
Approx. Inches
(mm)
1.11 (28.19)
1.11 (28.19)
1.11 (28.19)
1.11 (28.19)
1.11 (28.19)
1.11 (28.19)
Pin
Dimension Approx.
Inches (mm)
0.094 (2.39)
0.094 (2.39)
0.094 (2.39)
0.094 (2.39)
0.094 (2.39)
0.094 (2.39)
RL-1256-4 TABLE CONTINUES ON FOLLOWING PAGE
NOTES:
1. INDUCTANCE ± 10% TESTED AT 10 kHz , 0.1 Vrms, VALUES
BELOW 10µH ARE ± 20%
2. 500 VOLTS DC HIPOT FOR 1 MINUTE (WINDING TO I.D. OF CORE)
3. ELECTRICAL SPECIFICATIONS MEASURED AT 25ºC
4. Isat - DC CURRENT THAT WILL CAUSE INDUCTANCE TO
DROP BY 5%
5. Irms - CURRENT THAT CAUSES THE TEMPERATURE TO
RISE APPROX. 40ºC ABOVE AMBIENT OF 25ºC
6. LEADS FOR PC MOUNTING TINNED TO WITHIN 1/16” OF BODY
7. PART FINISHED WITH 135ºC POLYOLEFIN SLEEVING THAT MEETS
UL-224 VW-1
8. ENCAPSULATED TO MIL-PRF-27 AVAILABLE, SEE
RENCO RL-1324 SERIES
9. CENTER HOLE FOR MECHANICAL MOUNTING
10. SPACER AVAILABLE AT ADDITIONAL COST TO
FACILITATE PC BOARD WASHING
11. NON-LISTED VALUES AVAILABLE ON REQUEST
CHOKES
RENCO ELECTRONICS INC.
595 International Place, Rockledge, FL 32955-4200 USA • www.rencousa.com • ISO 9001 Certified
Toll Free Engineering Hot Line: 800.645.5828 • P: 321.637.1000 • F: 321.637.1600
