HC, HD, HG Series
Ultra Precision Resistor (Hermetically Sealed)
TCR, RESISTANCE RANGE, TOLERANCE,
RATED POWER
HC
HC
HD
HD
Type
HC
HD
HG
HG
HG
COMPOSITION OF TYPE NUMBER
TCR
(ppm/°C)
–55°C to
+125°C*
Resistance
Range
(Ω)
Rated
Power
(W)
at 125°C
Resistance
Tolerance (%)*†
0±15 (W)
1 to 5
±0.5 (D) ±1 (F)
0±5 (X)
5 to 30
±0.1 (B) ±0.5 (D) ±1 (F)
0±5 (X)
0±2.5 (Y)
0±1 (Z)**
30 to 120k
±0.005 (V) ±0.01 (T)
±0.02 (Q) ±0.05 (A)
±0.1 (B) ±0.5 (D) ±1 (F)
1 to 10
±0.01 (T) ±0.02 (Q)
±0.05 (A) ±0.1 (B)
±0.5 (D) ±1 (F)
10 to 10k
±0.005 (V) ±0.01 (T)
±0.02 (Q) ±0.05 (A)
±0.1 (B) ±0.5 (D) ±1 (F)
0±2.5 (Y)
0±1 (Z)**
0.3
* Symbols in parentheses are for type number composition.
† Resistance figures are obtained by measuring the leads at point
12.7±3.2 mm away from the base for type HC and HD, but, in case of
resistance below 10 ohm, the value at 1.6±0.6 mm away from the base
for all types.
**Temperature characteristic Z is applicable for temperature range
between 0°C and 60°C.
HC Y 30K000 T
POWER DERATING CURVE
CONFIGURATION (DIMENSIONS IN mm)
HC, HD Type
HG Type
(%)
250
Rated Power Percentage
Resistance value, in ohm, is expressed by a series of six
characters, five of which represent significant digits. The sixth
R or K is a dual-purpose letter that designates both the value
range (R for ohmic; K for kilo-ohm) and the location of decimal
point.
200
150
100
50
70
25
125
50
75
100
Ambient Temperature
150 (°C)
FOUR-TERMINAL (KELVIN) CONNECTION
For low ohmic resistor (less than 10 ohm), the resistance value
and TCR of the copper lead increases overall resistance value.
Four-terminal (Kelvin) connection is recommended per the
following figure. Loading current at voltage and current
terminals (V, I) causes measurement error.
Four-Terminal Resistor
Type
HC
HD
HG
L
10.7±0.3
19.0±0.3
W
10.7±0.3
12.8±0.3
T
4.3±03
F
3.81±0.25
F1
8.8±0.3
5.08±0.25
–
5.08±0.25
ℓ
30±10
d
Dia. 0.65±0.05
d1
Dia. 0.8±0.05
www.alpha-elec.co.jp
28
2.54±0.25
For any questions, contact
sales-alpha@alpha-elec.co.jp
Document No.: 67006
Revision: 25-Apr-2016
HC, HD, HG Series
PERFORMANCE
Parameters
Test Condition
Maximum Rated Operating Temperature
Working Temperature Range
Maximum Working Voltage
ALPHA Typical
Test Data
125°C
–65°C to +150°C
300V
Power Conditioning
Thermal Shock
Overload
125°C, Rated Power, 100 hrs.
–65°C/30 min. ↔ +150°C/30 min., 5 cycles
Rated Voltage x 6.25, 5 sec.
Solderability
Steam Aging 8 hrs., 245°C, 5 sec.
Resistance to Solvents
❶ lsopropyl Alcohol + Mineral Spirits
❷ Water + Butyl Cellosolve + Monoethanolamine
Low Temperature Storage
Low Temperature Operation
Terminal Strength
–65°C, 24 hrs.
–65°C Rated Voltage, 45 min.
0.908 kg (2 pounds), 10 sec.
Dielectric Withstanding Voltage
Insulation Resistance
Resistance to Soldering Heat
Moisture Resistance
Shock (Specified Pulse)
Vibration, High Frequency
Life
70°C Power Rating
Storage Life
High Temperature Exposure
Current Noise
Voltage Coefficient
Thermal EMF
Atom. Pres.: 300V rms. Baro. Pres. 8 mHg: 200V rms.
DC 100V, 2 min.
260°C, 10 sec. ±2 sec.
+65°C to –10°C, 90% RH to 98% RH, Rated Voltage, 10 cycles (240 hrs.)
100G, 6 ms, Sawtooth Wave, X, Y, Z, each 10 shocks
20G, 10 Hz to 2,000 Hz to 10 Hz, 20 min., X, Y, each 4 hrs.
125°C, Rated Power, 1.5 hr. – ON, 0.5 hr. – OFF, 2,000 hrs.
70°C, Rated Voltage x 2, 1.5 hrs. – ON, 0.5 hr. – OFF, 2,000 hrs.
15°C to 35°C, 15% RH to 75% RH, No Load, 10,000 hrs.
175°C, No Load, 2,000 hrs.
±(0.20% +0.01Ω)
±0.05%
±0.05%
±0.0025%
±0.0025%
±0.0025%
over 95% coverage
no damage
±0.05%
±0.05%
±0.02%
±0.0025%
±0.0025%
±0.001%
±0.02%
over 10,000 MΩ
±0.02%
±0.05%
±0.01%
±0.02%
±0.05%
±0.05%
±0.005%
±0.5%
–32 dB
0.0001%/V
1.0 µV/°C
±0.0025%
over 10,000 MΩ
±0.0025%
±0.0025%
±0.0025%
±0.0025%
±0.01%
±0.01%
±0.0005%
±0.01%
–42 dB
0.00003%/V
0.1 µV/°C
TEMPERATURE OF RESISTOR SURFACE
FREQUENCY CHARACTERISTICS
(%)
HC, HD
HG
HC
150
R(AC)/R(DC)
MIL-PRF-55182/9
Specification
10Ω
100Ω
100
1 kΩ
50
10 kΩ
1
5
10
Frequency
50 100
500 (MHz)
PRECAUTION IN USING HC, HD OR HG RESISTORS
When soldering to mount HC, HD or HG on a board, keep the resistor
over 10 mm away from the board surface by using an insulating tube.
Document No.: 67006
Revision: 25-Apr-2016
For any questions, contact
sales-alpha@alpha-elec.co.jp
www.alpha-elec.co.jp
29
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