SQZ Series Ceramic Wire Wound Power Resistors White Color Lead Free
Available
FEATURES
Ceramic potting, Greater safety.
High power in miniature size, longer load life under large load.
Admirable electronic performance against environmental conditions
and overload Resistant to heat
Rosh compliant / lead-free available
Power rating is defined as maximum power rating continuously
applied under ambient temperature at 70℃.when the ambient
temperature exceeds 70℃
PERFORMANCE
ITEM |
PERFORMANCE AND QUALIITY ACCEPTANCE |
TEST METHOD |
Resistance to temperature coefficient |
±300PPM/℃
| R – RO 106   PPM/℃ = *
RO T- T0
R = Measured resistance(Ω)at T T ℃ Ro = Measured resistance (Ω)at To To ℃ T = Measured test temperature(℃) To = Measured base temperature( ℃)
|
Short time overload |
±(1%R + 0.05ohm) Shall be no mechanical breakage
|
AC or DC voltage 10times the rated Voltage or 600v, Get the lower voltage. At 5 seconds. |
Insulation resistance |
﹥500MΩ
|
Lay the resistor on the 90° angle metal “V” Block applies DC 500V voltage for One Minute. |
Voltage endurance |
±(0.5%R + 0.05ohm) Shall be no mechanical breakage
|
Lay the resistor on the 90° angle metal “V” Block applies AC 1000V voltage for One Minute. |
Terminal strength |
Shall be no mechanical breakage |
Pull test apply 20N force to the lead in the direction of lead axis
for 30±5 seconds. |
Heat resistively against soldering |
±(1%R + 0.05ohm) Shall be no mechanical breakage
|
Dip the lead in to a solder bath having a temperature of 350℃ ± 10℃
up to 3±0.05mm from the body of the resistor and hold it for
3.5±0.5seconds leave the resistor ,at room temperature 1 hours
after ,then Measure.
|
Load life test |
±(5%R + 0.05ohm) Shall be no mechanical breakage
|
In the constant temperature chamber 70℃ ,apply rated voltage for 1
hour and shut voltage for 0.5 hour and repeat this cycle for 1000
hours, |
Solder ability |
≥95% |
Dip the lead in to a solder bath having a temperature of 260℃±5℃. Time:5± 0.5seconds. |
Humidity load test |
≤± (5% R+ 0.1ohm) Shall be no mechanical breakage
|
In temperature chamber 40℃±2℃,relative humidity 90 – 95%,Apply
rated voltage 1.5hour and shut voltage 0.5 hour repeat this cycle
for 1000 hours, leave in room temperature for 1 hour after test, |
Vibration |
Shall be no mechanical breakage
|
Set a resistor at the vibration table and vibrate 10HZ—55HZ 10HZ/s.
with 1.5mm amplitude in 1 min. when the change of frequency shall
be completed uniformly. The vibration shall apply to 3 directions,
vertical and horizontal to the axis of resistor each for 3h. |
Incombustibility |
Shall be no mechanical breakage
|
Resistance by ordinary fire 15 seconds stops for 5 seconds, so loop
5 times. |
Dimension
| TYPE | DIMENSION(mm) |
| SQZ | L±1.5 | W±1.5 | H±1.5 | P±2.0 | P1±0.5 | P2±0.5 | H1±1 | H2±1 |
| 20W | 63 | 12.5 | 12.5 | 44 | 10 | 3 | 33 | 16 |
.
FAQ
Q: Are you trading company or manufacturer ?
A: We are a fuse and fuse holder factory.
Q: How long is your delivery time?
A: Generally it is 3 days if the goods are in stock. Or it is 5-10
days if the goods are not in
stock, according to the quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay
the cost of freight.
Q: What is your terms of payment ?
A: 100% in advance, T/T.
Please tell me:
What product specifications do you need? when you ask for a
quotation.I will give you the most
competitive price per as your requirements. And we have many types
for you to choose.
P.S.:If you can't find any products to meet your requirements.
welcome to send us the details
drawings so that we can provide us our professional & best service
to you.
