3425L250DR Littelfuse Inc, 3425L250DR Datasheet

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3425L250DR

Manufacturer Part Number
3425L250DR
Description
PTC 2.50A 15V RESETTABLE 3425L
Manufacturer
Littelfuse Inc
Series
3425Lr
Datasheet

Specifications of 3425L250DR

R Min/max
0.035 ~ 0.100 Ohm
Voltage - Max
15V
Time To Trip
25s
Current - Hold (ih) (max)
2.5A
Current - Trip (it)
5A
Current - Max
40A
Package / Case
3425
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
F2107TR
R3425L250

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
3425L250DR
Manufacturer:
ROHM
Quantity:
6 150
RESETTABLE PTCs
SURFACE MOUNT PTC
2029L/3425L Series
• The 2029L/3425L Series Resettable devices utilize a
• In normal operation, the 2029L/3425L Series PTC has
• The 2029L/3425L Series are surface mountable.
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: Terminal Material: Tin Plated Brass to
MIL-T-10727B
Lead Solderability: Meets EIA specification RS186-9E
Device Labeling: Device is marked with the letter ‘L’,
amperage rating and date code.
Packaging: Packaged in tape and reel carrier per
EIA 481-2 standard
Standard reel quantities:
22
2029L Series
3425L Series
unique polymer-based, Positive Temperature Coefficient
(PTC) material to protect electrical circuits against over-
current conditions.
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 signif-
icantly limiting the flow of current. However, once the
cause of the initial overcurrent condition is eliminated,
the 2029L/3425L Series PTC cools down and resets to a
low resistance value permitting the normal current flow
to resume.
Number
Part
OBSOLETE
Quantity
2000
1500
Reel
Packaging
Suffix
PR
DR
PART
For NEW Designs use 1812L series PTC in place of the 2029L
Series.
ENVIRONMENTAL SPECIFICATIONS:
Passive Aging: 85°C, 1000 Hours. ±5% typical resistance
change.
Humidity Aging: 85°C, 85% R.H., 1000 hours. ±5% typi-
cal 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 condi-
tion I (100 g’s, 6 sec.). No resistance change.
Max. Surface Temperature: 125°C
Operating/Storage Temperature: –40°C to 85°C
200
150
100
Rerating Curve for 2029L /3425L Series
50
0
-40
-30
-20
-10
0
10
Temperature ( C)
20
30
40
50
®
60
70
®
80
TUV
PRODUCT SERVICE
90

Related parts for 3425L250DR

3425L250DR Summary of contents

Page 1

... This dramatically reduces the conductive paths resulting in an immediate rise in resistance. In this OBSOLETE condition, the device provides circuit protection by signif- icantly limiting the flow of current. However, once the cause of the initial overcurrent condition is eliminated, the 2029L/3425L Series PTC cools down and resets to a low resistance value permitting the normal current flow to resume ...

Page 2

RESETTABLE PTCs SURFACE MOUNT PTC 2029L/3425L Series Dimensions (Inches) Recommended Pad Layout (Inches) All dimensions are nominal MARKING A E .120 * .025 .025 C *0.010 for 2029L050 OBSOLETE Series A B 2029L .214 max. .314 max. 3425L ...

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