General Note
BI Technologies reserves the right to make changes in product specification without notice or liability
© BI Technologies Limited •
Glenrothes, Fife KY7 4NX, UK
Telephone: +44 (0) 1592 662200 • Facsimile: +44 (0) 1592 662299 • Website: www.bitechnologies.com • Email: sales@bitechnologies.co.uk
A subsidiary of TT electronics plc
BHPR Series Issue May 08
MODEL BHPR SERIES
BHPR Series
• Non-Inductive.
• Rated upto 600W depending on resistor configuration.
• Small TO-227 package, very low thermal resistance.
• Superior vibration durability, with M4 screw terminals.
• RoHS Compliant.
APPLICATIONS
•
High power snubber resistors in power supplies.
•
High frequency and pulse handling circuits.
•
Pulse generator load resistors.
•
High power crossover circuits in audio speaker systems.
DIMENSIONS
SCHEMATICS
Circuit X Circuit Y Circuit Z
BHPR 200, 300 & 600 BHPR 150, 250 & 550
Circuit X Circuit Y
K
9.2
+/-0.5
L
8.0
+/-0.5
L
K
© BI Technologies Limited •
Glenrothes, Fife KY7 4NX, UK
Telephone: +44 (0) 1592 662200 • Facsimile: +44 (0) 1592 662299 • Website: www.bitechnologies.com • Email: sales@bitechnologies.co.uk
BHPR Series Issue May 08
MODEL BHPR SERIES
SPECIFICATION
Specification Items BHPR 150 BHPR 200 Test Conditions
Power Rating 150 Watts 200 Watts With Heatsink, 0.9°C / W.
Resistor Schematic Dual Single
Resistance Range 0.1Ω - 1KΩ 0.1Ω - 1KΩ
Nominal Resistance Any Any Within range and tolerance
TCR ±100ppm/°C ±100ppm/°C For -55 to +155°C
Tolerance ±1%, ±5% ±1%, ±5%
Operation Temp. Range -55 to +155°C -55 to +155°C
Max Applied Voltage E = √P*R
Withstanding Voltage 2500 VDC 60 Seconds
Load Life ∆R ±(1.0% +0.05Ω) 25°C, 90 min On, 30 min Off, 1000 Hours
Humidity ∆R ±(1.0% +0.05Ω) 70°C, 90 ~ 95%RH, DC 0.1W, 1000 Hours
Temperature Cycle ∆R ±(1.0% +0.05Ω) -55°C 30 min, +120°C 30 min, 20 cycles
Short Term Overload ∆R ±(0.25% +0.05Ω) Rated Power * 2.5, 2.5 seconds, with Heatsink
Soldering Heat ∆R ±(0.25% +0.05Ω) 350°C ±5°C, 3 seconds
Insulation Resistance Over 1000 MegΩ Between Terminals and Flange.
Vibration ∆R ±(0.25% +0.05Ω)
Specification Items BHPR 250 BHPR 300 Test Conditions
Power Rating 250 Watts 300 Watts At Flange Temp –55 to +25°C
Resistor Schematic Dual Single
Resistance Range 0.1Ω - 1KΩ 0.1Ω - 1KΩ
Nominal Resistance Any Any .Within range and tolerance
TCR ±100ppm/°C ±100ppm/°C For -55 to +155°C
Tolerance ±1%, ±5% ±1%, ±5%
Operation Temp. Range -55 to +155°C -55 to +155°C
Max Applied Voltage E = √P*R
Withstanding Voltage 2500 VDC 60 Seconds
Load Life ∆R ±(1.0% +0.05Ω) 25°C, 90 min On, 30 min Off, 1000 Hours
Humidity ∆R ±(1.0% +0.05Ω) 70°C, 90 ~ 95%RH, DC 0.1W, 1000 Hours
Temperature Cycle ∆R ±(1.0% +0.05Ω) -55°C 30 min, +120°C 30 min, 20 cycles
Short Term Overload ∆R ±(0.25% +0.05Ω) Rated Power * 2.5, 2.5 seconds, with Heatsink
Soldering Heat ∆R ±(0.25% +0.05Ω) 350°C ±5°C, 3 seconds
Insulation Resistance Over 1000 MegΩ Between Terminals and Flange.
Vibration ∆R ±(0.25% +0.05Ω)
© BI Technologies Limited •
Glenrothes, Fife KY7 4NX, UK
Telephone: +44 (0) 1592 662200 • Facsimile: +44 (0) 1592 662299 • Website: www.bitechnologies.com • Email: sales@bitechnologies.co.uk
BHPR Series Issue May 08
MODEL BHPR SERIES
SPECIFICATIONS (Cont.)
Specification Items BHPR 550 BHPR 600 Test Conditions
Power Rating 600 Watts 600 Watts At Flange Temp –55 to +25°C
Resistor Schematic Dual Single
Resistance Range 50Ω - 1KΩ 50Ω - 1KΩ Thin metal film resistor.
Nominal Resistance Any Any Within range and tolerance.
TCR ±100ppm/°C ±100ppm/°C For -55 to +155°C
Tolerance ±1%, ±5% ±1%, ±5%
Operation Temp. Range -55 to +155°C -55 to +155°C
Max Applied Voltage E = √P*R
Withstanding Voltage 2500 VDC 60 Seconds
Load Life ∆R ±(1.0% +0.05Ω) 25°C, 90 min On, 30 min Off, 1000 Hours
Humidity ∆R ±(1.0% +0.05Ω) 70°C, 90 ~ 95%RH, DC 0.1W, 1000 Hours
Temperature Cycle ∆R ±(1.0% +0.05Ω) -55°C 30 min, +120°C 30 min, 20 cycles
Short Term Overload ∆R ±(0.25% +0.05Ω) Rated Power * 2.5, 2.5 seconds, with Heatsink
Soldering Heat ∆R ±(0.25% +0.05Ω) 350°C ±5°C, 3 seconds
Insulation Resistance Over 1000 MegΩ Between Terminals and Flange.
Vibration ∆R ±(0.25% +0.05Ω)
© BI Technologies Limited •
Glenrothes, Fife KY7 4NX, UK
Telephone: +44 (0) 1592 662200 • Facsimile: +44 (0) 1592 662299 • Website: www.bitechnologies.com • Email: sales@bitechnologies.co.uk
BHPR Series Issue May 08
MODEL BHPR SERIES
Pulse Width (seconds)
Applied Power (W)
Applied Power (W)
PERFORMANCE
Derating Curve, BHPR 150, 200, 250 & 300
Derating Curve, BHPR 550 & 600
% Power Rating
100
80
60
40
20
0
-50 0 +50 +100 +150 +200
Flange Temperature (°C)
+155°C +120°C +25°C
Temperature Rise, BHPR 200 on 0.2°C / W Heatsink
Temperature Rise, BHPR 300 on 0.1°C / W Heatsink
Temperature Rise, BHPR 600
0
20
40
60
80
100
120
140
160
°C
100 200 300
Resistor Temperature
Flange Temperature
Resistor Temperature
300 200 100
0
20
40
60
80
100
120
140
160
°C
Applied Power (W)
Flange Temperature
0 200 400 600 800 1000 1200
Flange Temperature
Resistor Temperature
20
40
60
80
100
120
140
160
°C
-50 0 +50 +100 +150
Flange Temperature (°C)
0
20
40
60
80
100
% Power Rating
+155°C
+25°C
1u 10u 100u 1m 10m 100m 1s
10
100
1K
10K
100K
1000K
Pulse Peak Power (Watts)
Pulse Operation Durability
BHPR 250 / 1 resistor
BHPR 300
0.01J 0.1J 1.0J 10J 100J
© BI Technologies Limited •
Glenrothes, Fife KY7 4NX, UK
Telephone: +44 (0) 1592 662200 • Facsimile: +44 (0) 1592 662299 • Website: www.bitechnologies.com • Email: sales@bitechnologies.co.uk
BHPR Series Issue May 08
MODEL BHPR SERIES
ORDERING INFORMATION
BHPR 600 X S 500 J
Model Tolerance
F = 1%
Power Rating J = 5%
150 = 150W
200 = 200W Resistance Code
250 = 250W 500 = 50Ω
300 = 300W
(First 2 digits significant,
550 = 550W
last digit = number of trailing zeros)
600 = 600W
S
Schematic (Only use the S suffix if you require screws,
X, Y or Z otherwise leave blank)
