Burn-in and Test Board Component Data.

Following is data on typical resistor and capacitor components for burn-in and test use.

PC Board Resistor Specifications – Characteristics of Resistors Used in Burn-in
Parameter Wirewound Metal Film Carbon Film Carbon Composite Thick Film Powder Oxide
Cost Most Expensive Above Average Average Least Expensive Above Average
Generally Selected for 160°C (Type III) 150°C (Type II) 125°C (Type I) Not for Burn-in to 175°C
Wattage Range 1 to 1000W 1/10 to 3W 1/2 to 2W 1/8 to 2W 1 to 9W
Practical Resistance Range (½) 0.1 to 10k 10 to 1 M 5 to 1 M 5 to 1M 0.1 to 240k
Temperature Coefficient (ppm/°C) +20 to +4000 +25 to +100 +200 to +600 +625 to +3000 +200
Momentary Overload (5 seconds) 800% rated wattage 500% rated wattage 500% rated wattage 500% rated wattage 250% rated wattage
Noise Most Quiet if Non inductive Quiet Less Quiet Least Quiet Quiet
Moisture Resistance Good Good Fair Very Poor Average
General Tolerance 1 to 5% 1% 5% 10% 2 to 5%
Hi-Frequency Characteristics Inductive (Non inductive wound-type increases cost) Low Series Inductance, Low Shunt Capacitance Negligible Series Inductance, Low Shunt Capacitance Negligible Series Inductance, Low Shunt Capacitance No Series Inductance, Low Shunt Capacitance

Derating Chart

Free Air Rating Note: Specific manufacturer's devices will vary from data shown (reference only).

Resistor Derating Chart

 

CAPACITOR DATA

PB Board Capacitor Specifications
Type
Tantalum
Ceramic
Film
Mica
Parameter
Wet Slug
Solid
NPO
X7R
Mfg Rated Temp Limit
125° to 175°C *
125°C
125° to 200°C **
125°C
100° to 175°C ***
85°C
Generally Selected For
150°C and
High Capacitance

125°C and
High Capacitance

150°C
125°C
Generally Not
for Burn-in
Generally Not
for Burn-in
Voltage Range
3 to 500V
3 to 100V
50 to 200V
50 to 200V
100 to 600V
200 to 500V
Type Voltage Selected
35 to 50V
35 to 50V
50 to 100V
50 to 100V
100 to 200V
200V
Surge Voltage
115% Rated
115% Rated
250% Rated
250% Rated
150% Rated
200% Rated
Capacitor Range
1 to 200µf
0.001 to 300µf
1 to 10,000pf
1 to 270,000pf
200pf to 10µf
1 to 5,500pf
Capacitor Charge Due to Temp
+20 to -80%
+15 to -10%
+30%
15%
5%
+100%
General Tolerance
5-20%
10-20%
1-5%
10-20%
5-20%
1-20%
Dissipation Factor
9 to 20%
4 to 10%
0.10%
2.5%
0.75%
0.2%
Frequency Limit at 23°C
100 kHz
1 MHz
70 MHz
11 MHz
100 kHz
100 MHz
Insulation Resistance at 23°C
N/A
100,000 M½
100,000 M½
100,000 M½
30,000 M½
100,000 M½
Relative Cost
Most Expensive
Moderately Expensive
Moderately Expensive
Above Average
Average
Least Expensive
  * Some go to 175°C with voltage derating.
  ** Class cased NPO capacitors work up to 200°C in small values (below 1000pf) and derated voltage.
  *** Teflon® film can go to 175°C with low values and derated voltages.
NOTE :
Many factors affect cost and this relative listing may change depending on specific situations (particularly higher temperature in a class). Specific manufacturer’s may vary from data shown (reference only).

About Us


Loranger International Corporation designs and manufactures burn-in and test sockets, printed circuit boards and environmental chamber systems for the electronics manufacturing industry.

Loranger International Corporation sockets are optimized for today’s small, fine pitch electronic packages including QFN, as well as for older style packages.

Loranger International Corporation burn-in and test sockets are used worldwide in programs including defense, guidance, automotive, music, communication and space exploration.

Contact Us


Loranger International, Inc.
817 Fourth Ave.
Warren, PA 16365
303 Brokaw Road
Santa Clara, CA 95050
Phone
Asia and North America West: (408) 727-4234
Europe and North America East: (814) 723-2250
Email: sales@loranger.com
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