COMMERCIAL 1/10 to 1/2 WATT
CARBON FILM MELF RESISTORS
RESISTORSCAPACITORSCOILSDELAY LINES
Term.W
is Pb-free
and RoHS
compliant
RoHS
MCF SERIES
Low cost, carbon film MELFs! Pulse voltage to 3KV!
Quality levels are unsurpassed due to stringent process con-
trols. Automated Far East production results in low prices. RCD
offers the industry’s widest range of sizes and options including
zero ohm jumpers and high pulse voltage versions.
Economy-grade pricing!
Wide resistance range (up to 22MegW available)
Standard tolerance: ±5% (±2% available)
Series ZCF zero-ohm jumpers available, .02W maximum.
Type ZCF10 is rated at 2A, ZCF12 at 3A, and ZCF25 at 5A.
ZCF Series marked with a single black band.
L
OPTIONS
D
W
Option Z - high pulse voltage to 3KV
Option 37 - Group A screening per Mil-R-39008
Inch [mm]
t
SPECIFICATIONS
Series MCF Voltage Rating
Max.
Series MCFZ Voltage Rating
Max.
RCD
Type
Wattage
at 70°C
L ±.008
[.2]
D ±.008 W (Min.) t (Max.)
[.2]
Voltage
Rating1
Resis.
Voltage
Rating1
Resis.
Pulse
Pulse
Range3
Range3
Voltage2
Voltage2
MCF10
MCF12
MCF22
MCF25
MCF25S
.10
.125
.25
.25
.50
100V
200V
250V
250V
250V
200V
400V
400V
1W - 1MW
1W - 1MW
1W - 1MW
n/a
250V
n/a
n/a
2KV
n/a
3KV
n/a
1KW - 1MW .079 [2.0] .044 [1.12] .012 [.3] .006 [.15]
1KW - 1MW .135 [3.4] .057 [1.45] .012 [.3] .006 [.15]
1KW - 1MW .135 [3.4] .057 [1.45] .012 [.3] .006 [.15]
1KW - 2.2M .232 [5.9] .085 [2.15] .020 [.5] .008 [.2]
1KW - 2.2M .232 [5.9] .085 [2.15] .020 [.5] .008 [.2]
600V 1W - 2.2MW 300V
600V 1W - 2.2MW n/a
1
Maximum working voltage determined by E =
, E should not exceed value listed in column above. Dielectric strength is rated the same as the maximum working voltage.
PR
√
2
Peak pulse voltage is highly dependent on pulse waveform and resistance value. Voltage levels given indicate maximum levels for the series. These levels are not attainable for all values and
pulse waveforms. Consult factory for application assistance. 3 Consult factory for resistance values outside of standard range (0.1W to 22 Meg available).
TEMPERATURE COEFFICIENT (Typ.)
DERATING
-1000
-750
-500
-250
0
120
100
80
60
10
100
1K
10K
100K
1M
10M
40
NOMINAL RESISTANCE (Ohms)
20
CURRENT NOISE (Typ.)
0
-55
25
50
75
70
100
125
150
155°C
175
200
+20
0
AMBIENT TEMPERATURE (°C)
-20
-40
-60
PERFORMANCE CHARACTERISTICS
Operating Temperature Range
-55 to +155°C
95% coverage
10,000 MegW
10
100
1K
10K
100K
1M
10M
Solderability (5 sec. @ 230°C)
NOMINAL RESISTANCE (Ohms)
Insulation Resistance (Dry)
P/N DESIGNATION:
MCF25
-
102 - J T W
RCD Type
Short-Time Overload (5 sec. @ 2.5x power
not to exceed 2x voltage rating)
0.5%* + .05W
3-Digit Resis. Code: 2 signif. digits & multiplier
1R0=1W, 100=100W, 101=100W, 102=1KW,
103=10K, 104=1M, 105=10M, etc.
Resistance to Solder Heat (260°C, 5 sec.)
Temperature Cycling (-50°C + 120°C)
Moisture Resis. (MIL-Std-202, Method 106)
0.5% + .05W
1.0% + .05W
5.0% + .05W
2.5%* + .05W
Tolerance: J = 5% (standard), K =10%, G =2%
Packaging: B = Bulk, T = Tape & Reel
Termination: W= Lead-free (std), Q= Tin/Lead (leave blank if
either is acceptable)
Load Life (1000 hours rated power)
* Multiply by 2 for MCF22 and MCF25S Series.
-
-
-
-
RCD Components Inc, 520 E.Industrial Park Dr, Manchester, NH, USA 03109 rcdcomponents.com Tel: 603 669 0054 Fax: 603 669 5455 Email:sales@rcdcomponents.com
FA090A Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
21