Low cost, carbon lm 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.
PERFORMANCE CHARACTERISTICS
* Multiply by 2 for MCF22 and MCF25S Series.
SPECIFICATIONS
RCD
Type
Wattage
at 70°C
Series MCF Voltage Rating Series MCFZ Voltage Rating
L ±.008
[.2]
D ±.008
[.2]
W (Min.) t (Max.)
Voltage
Rating
1
Max.
Pulse
Voltage
2
Resis.
Range
3
Voltage
Rating
1
Max.
Pulse
Voltage
2
Resis.
Range
3
MCF10 .10 100V 200V 1W - 1MW n/a n/a 1KW - 1MW .079 [2.0] .044 [1.12] .012 [.3] .006 [.15]
MCF12 .125 200V 400V 1W - 1MW 250V 2KV 1KW - 1MW .135 [3.4] .057 [1.45] .012 [.3] .006 [.15]
MCF22 .25 250V 400V 1W - 1MW n/a n/a 1KW - 1MW .135 [3.4] .057 [1.45] .012 [.3] .006 [.15]
MCF25 .25 250V 600V 1W - 2.2MW 300V 3KV 1KW - 2.2M .232 [5.9] .085 [2.15] .020 [.5] .008 [.2]
MCF25S .50 250V 600V 1W - 2.2MW n/a n/a 1KW - 2.2M .232 [5.9] .085 [2.15] .020 [.5] .008 [.2]
Operating Temperature Range
-55 to +155°C
Solderability (5 sec. @ 230°C)
95% coverage
Insulation Resistance (Dry)
10,000 MegW
Short-Time Overload (5 sec. @ 2.5x power
not to exceed 2x voltage rating)
0.5%* + .05W
Resistance to Solder Heat (260°C, 5 sec.)
0.5% + .05W
Temperature Cycling (-50°C + 120°C)
1.0% + .05W
Moisture Resis. (MIL-Std-202, Method 106)
5.0% + .05W
Load Life (1000 hours rated power)
2.5%* + .05W
RESISTORSCAPACITOR
S
C
OILSDELAY LINES
CURRENT NOISE (Typ.)
+20
0
-20
-40
-60
10 100 1K 10K 100K 1M 10M
NOMINAL RESISTANCE (Ohms)
NOISE INDEX
(db)
FA090A Sale of this product is in accordance with GF-061. Specications subject to change without notice.
P/N DESIGNATION:
Inch [mm]
L
D
W
t
TEMP. COEFFICIENT
(ppm/°c)
TEMPERATURE COEFFICIENT (Typ.)
-1000
-750
-500
-250
0
10 100 1K 10K 100K 1M 10M
NOMINAL RESISTANCE (Ohms)
RCD Type
Tolerance: J = 5% (standard), K =10%, G =2%
Packaging: B = Bulk, T = Tape & Reel
MCF25 - 102 - J T W
3-Digit Resis. Code: 2 signif. digits & multiplier
1R0=1W, 100=100W, 101=100W, 102=1KW,
103=10K, 104=1M, 105=10M, etc.
Termination: W= Lead-free (std), Q= Tin/Lead (leave blank if
either is acceptable)
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.
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).
√
PR
% OF RATED POWER
120
100
80
60
40
20
0
DERATING
-55 25 50 75 100 125 150 175 200
70
AMBIENT TEMPERATURE (°C)
155°C
21
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.
OPTIONS
COMMERCIAL 1/10 to 1/2 WATT
CARBON FILM MELF RESISTORS
MCF SERIES
Option Z - high pulse voltage to 3KV
Option 37 - Group A screening per Mil-R-39008
RoHS
Term.W
is Pb-free
and RoHS
compliant
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
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