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參數(shù)資料
| 型號(hào)： | 30R900 |
| 廠商： | Littelfuse, Inc. |
| 英文描述： | Radial Leaded PTC |
| 中文描述： | PTC的徑向引線 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大小： | 116K |
| 代理商： | 30R900 |
252
www .littelfuse .com
Radial Leaded PTC
Resettable PTCs
30R Series
The 30R Series Resettable devices utilize a unique polymer-based,
Positive Temperature Coefficient (PTC) material to protect electrical
circuits against overcurrent conditions.
In normal operation, the 30R Series PTC has many conductive paths
and a very low resistance. In an overcurrent condition, the temperature
of the polymer material rises. This dramatically reduces the conductive
paths resulting in an immediate rise in resistance. In this condition, the
device provides circuit protection by significantly limiting the flow of
current. However, once the cause of the initial overcurrent condition
is eliminated, the 30R Series PTC cools down and resets to a low
resistance value permitting the normal current flow to resume.
The 30R Series is a 30V Radial Leaded Device with a 40A Short
Circuit Rating.
AGENCY APPROVALS: Recognized under the Components Program
of Underwriters Laboratory and the Component Acceptance Program of
CSA. TUV approved.
AGENCY FILE NUMBERS: UL E183209, CSA LR 108832
PHYSICAL SPECIFICATIONS:
Materials: Leads
30R090-250: Tin plated copper-clad steel, 24 AWG
(0.020" Dia.)
30R300-900: Tin plated copper, 20 AWG (0.032" Dia.)
Lead Solderability: MIL-STD-202, Method 208E
Coating: Thermoset Coating
Device Labeling: Device is marked with the letter ‘L’, amperage rating,
voltage rating & date code.
Packaging: Standard bulk packaging is 500 pieces per container.
Optional tape and reel packaging per EIA 486-B is also available.
Standard reel quantities:
ENVIRONMENTAL SPECIFICATIONS:
Passive Aging: 85°C, 1000 Hours. ±5% typical resistance change.
Humidity Aging: 85°C, 85% R.H., 1000 hours. ±5% typical
resistance change.
Thermal Shock: 85°C / –40°C, 20 times. ±10% typical
resistance change.
Vibration: MIL-STD 202, Method 201. No resistance change.
Mechanical Shock: MIL-STD-202, Method 213 test condition I
(100 g’s, 6 sec.). No resistance change.
Max. Surface Temperature: 125°C
Operating/Storage Temperature: –40°C to 85°C
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
0
50
100
150
200
Temperature (
°C)
Percentage
of
Rated
Current
Part
Reel
Number
Quantity
R30R090
R30R110
R30R135
R30R160
3000
R30R185
R30R250
Part
Reel
Number
Quantity
R30R300
R30R400
1500
30R500
30R600
Bulk Only
30R700
500 Per
30R800
Container
30R900
Rerating Curve for 30R Series
Next
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