Rev Date: 08/25/2011 1 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
HDM Series
Moisture Resistant Carbon Film Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Features:
• Specialized materials, processes and controls ensure a part
that is impervious to moisture
• Small size with high power density
• Auto sequencing / insertion capable
• Low cost replacement in many applications using metal
glaze resistors
• RoHS compliant / lead-free
Maximum Maximum
T
y
pe / Code Workin
g
Overload
Volta
g
e
(
1
)
Volta
g
e 1%, 2%, 5%
HDM14 0.25W 300V 600V 1 - 2.2M
HDM12 0.5W 350V 700V 1 - 2.2M
Power Rating (Watts)
@ 70ºC
Ohmic Range (Ω) and Tolerance
(1) Lesser of √PR or maximum working voltage.
Electrical Specifications
ABCD
Body Length Body Diameter Lead Length (Bulk) Lead Diameter
0.13 ± 0.01/-0 0.07 ± 0.01 1.1 ± 0.12 0.018 ± 0.002 inches
3.2 ± 0.2/-0 1.8 ± 0.2 28.0 ± 3.0 0.45 ± 0.05 mm
0.24 ± 0.02 0.09 ± 0.01 1.1 ± 0.12 0.024 ± 0.002 inches
6.0 ± 0.3 2.4 ± 0.2 28.0 ± 3.0 0.6 ± 0.02 mm
HDM12
Type / Code Unit
HDM14
Mechanical Specifications
Rev Date: 08/25/2011 2 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
HDM Series
Moisture Resistant Carbon Film Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
123456789101
HDM12JT4K70
1
Nominal
Resistance
4.7K
T
yp
e Descri
p
tion Code Watta
g
e Tolerance
V
alues T
yp
es Qt
y
Descri
p
tion Code
1/4 0.25W 1% Tape and Reel R
1/2 0.5W 2% Ammo T
5% All 1,000 Bulk A
HDM Moisture Resistant
Carbon Film All 5,000
E24
Packaging
HDM 1/2 5% R
SEI Type Code Tolerance
Item Performance or Quality Acceptance Test Condition and Method
R < 100KΩ: -500 ~ +350ppm/ºC
100KΩ ≤ R < 1MΩ: -700 ~ 0ppm/ºC
R ≥ 1MΩ: -1500 ~ 0ppm/ºC
Change of resistance
≤±(0.75% + 0.05Ω)
Change of resistance
R < 100KΩ: ≤±(3% + 0.05Ω)
R ≥ 100KΩ: ≤±(5% + 0.05Ω)
Change of resistance
R < 100KΩ: ≤±(2% + 0.05Ω)
R ≥ 100KΩ: ≤±(3% + 0.05Ω)
Change of resistance
≤±(20% + 0.05Ω)
Reference standards: JIS C5201-1, IEC60115-1
121ºC, 2atm, 98-100%RH.
Apply the rated DC voltage for 100 hours.
Pressure Cooker Bias Test
In the chamber having temperature 40±2ºC and
relative humidity 93±3%, apply one percent of the
power rating, 1.5 hour ON, 0.5 hour OFF for
1000 hours and leave in room temperature for
one hour after test.
Damp heat (Steady State)
At 70±2ºC, apply rated DC voltage 1.5 hour ON,
0.5 hour OFF for 1000 hours and leave in room
temperature for one hour after test.
Load Life
Measure resistance (R0) at room temperature (t),
after that, measure again the resistance (R) at
100ºC higher than room temperature.
TCR - Temperature Coefficient of Resistance
Apply the 2.5 times rated voltage or max overload
voltage whichever is lower for 5 seconds and leave
in room temperature for one hour after test.
Overload (Short Time)
R-R
0
10
6
R
0
(t + 100)-t
TCR = x (ppm/ºC)
Performance Characteristics
How to Order
Size Quantity
14 Code Value 5,000
12 F 5,000
G1,000
J
Tolerance
E24
5%
Description Resistance ValueProduct Series Power Rating SizeCode
2%
all sizes1%
Tol T
A
BBulk
10 Kohm = 10K0
2.2 Mohm = 2M20
HDM Moiture Resistant
Carbon Film 0.5W
0.25W Tape and Reel
Ammo
1 ohm = 1R00
Four characters with the
multiplier used as the
decimal holder.
all sizes
all sizes
Legacy Part Number (before January 3, 2011):
