P-TCO-N350/12 [BOURNS]
Polymeric Thermal Cutoff Device;
| 型号： | P-TCO-N350/12 |
| 厂家： | 
BOURNS ELECTRONIC SOLUTIONS |
| 描述： | Polymeric Thermal Cutoff Device |
| 文件： | 总5页 (文件大小：658K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Features
Applications
n Compact, space-saving 1206 footprint
n Low profile and symmetrical design
n Small size promotes fast response time
to thermal runaway events
n Ultra-low resistance
n Thermal protection for USB-C 2.0, 3.0
and 3.1 cables and ports
n Mobile device fast charging port protection
n RoHS compliant*
n Agency recognition:
P-TCO-N Series - Polymeric Thermal Cutoff Device
Electrical Characteristics
I
Thermal Cutoff
Max. Time To Trip
at 23 °C
Resistance
Certifications
hold
Vmax
Imax
Model
at 23 °C
Amps
3.5
at 3 A
°C
at 2 A
°C
Ohms at 23 °C
cUL
TÜV
R
R
1Max.
Volts
12
Amps
50
Amps
8.0
Seconds
5.0
E174545
R50405491
Min.
0.002
0.002
0.002
P-TCO-N350/12
P-TCO-N400/12
P-TCO-N450/12
75 ±20
80 ±15
90 ±15
95 ±15
0.022
0.018
0.014
3
3
3
3
3
3
12
50
4.0
10.0
22.5
5.0
12
50
4.5
85 ±15 100 ±10
2.0
Environmental Characteristics
Operating Temperature......................................... -40 °C to +85 °C
Storage Condition
Before Opening ............................................... +40 °C max. / 70 % RH max.
After Opening................................................... +40 °C max. / 10 % RH max.
Floor Condition After Opening.............................. Consumption within 4 weeks at floor condition +30 °C max. / 60 % RH max.
Passive Aging....................................................... +85 °C, 1000 hours............................................... ±10 % typical resistance change
Humidity Aging...................................................... +85 °C, 85 % R.H. 100 hours ............................... ±15 % typical resistance change
Thermal Shock ..................................................... +85 °C to -40 °C, 20 times.................................... ±30 % typical resistance change
Solvent Resistance............................................... MIL-STD-202, Method 215 ................................... No change (marking still legible)
Vibration ............................................................... MIL-STD-883C, Method 2007.1,........................... No change (R <R<R
)
min
1max
Condition A
Moisture Sensitivity Level (MSL).......................... See Note
ESD Classification - HBM..................................... 6
Test Procedures and Requirements
Test
Visual/Mech.......................................................... Verify dimensions and materials........................... Per MF physical description
Resistance............................................................ In still air @ 23 °C................................................. R ≤ R ≤ R
Test Conditions
Accept/Reject Criteria
min
1max
Time to Trip........................................................... At specified current, Vmax, 23 °C......................... T ≤ max. time to trip (seconds)
Hold Current ......................................................... 30 min. at I ...................................................... No trip
hold
Trip Cycle Life....................................................... V
, I
, 100 cycles.......................................... No arcing or burning
max max
Trip Endurance..................................................... V
, 48 hours ..................................................... No arcing or burning
Solderability.......................................................... 245 °C ±5 °C, 5 seconds ...................................... 95 % min. coverage
max
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
*
RoHS Directive 2015/863, Mar 31, 2015 and Annex.
** Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br)
and Chlorine (Cl) content is 1500 ppm or less.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and atwww.bourns.com/docs/legal/disclaimer.pdf.
P-TCO-N Series - Polymeric Thermal Cutoff Device
Product Dimensions
A
B
C
D
E
Model
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Min.
Max.
P-TCO-N350/12
P-TCO-N400/12
P-TCO-N450/12
0.05
(0.002)
3.00
(0.118)
3.50
(0.138)
1.40
(0.055)
1.80
(0.071)
0.60
(0.024)
1.10
(0.043)
0.25
(0.010)
0.45
(0.018)
MM
(INCHES)
DIMENSIONS:
Side View
Recommended Pad Layout
Top View
Bottom View
Terminal material:
ENIG-plated terminals
A
C
D
E
1.0 0.05
(.039 .002)
1.0 0.05
(.039 .002)
1.6 0.1
(.063 .00ꢀ)
B
2.0 0.1
(.079 .00ꢀ)
Packaging Quantity
3500 pcs. per reel
Thermal Derating Table - I
(Amps)
hold
Ambient Operating Temperature
Model
-40 °C
-20 °C
4.66
0 °C
4.13
4.65
4.70
23 °C
3.50
4.00
4.50
40 °C
2.98
3.40
3.60
50 °C
2.71
3.10
3.15
60 °C
70 °C
85 °C
1.65
1.80
1.85
P-TCO-N350/12
P-TCO-N400/12
P-TCO-N450/12
5.15
5.80
6.10
2.49
2.65
2.70
2.00
2.20
2.25
5.25
5.40
Typical Part Marking
How to Order
Represents total content. Layout may vary.
P-TCO - N 350 / 12 - 2
Polymeric
Thermal Cutoff
Device
PART IDENTIFICATION:
P-TCO-N350/12 = S12
P-TCO-N400/12 = U12
P-TCO-N450/12 = X12
N = 1206 footprint
Surface Mount Component
S12
MANUFACTURING DATE CODE IS
LOCATED ON PACKING LABEL.
Hold Current, I
hold
350 - 450 (3.50 Amps - 4.50 Amps)
Maximum Voltage, V
12 = 12 Volts
max
Packaging
-2 = Tape and Reel
Packaged per EIA 481
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and atwww.bourns.com/docs/legal/disclaimer.pdf.
P-TCO-N Series - Polymeric Thermal Cutoff Device
Solder Reflow Recommendations
Notes:
t
p
T
•
•
•
P-TCO-N models cannot be wave soldered or hand soldered.
Please contact Bourns for soldering recommendations.
P
CRITICAL ZONE
TO
RAMP-UP
T
T
P
L
All temperatures refer to topside of the package, measured on the
package body surface.
T
L
t
L
If reflow temperatures exceed the recommended profile, devices may
not meet the published specifications.
Ts
Ts
max
min
RAMP-DOWN
•
•
Compatible with Pb and Pb-free solder reflow profiles.
Excess solder may cause a short circuit, especially during hand
soldering. Please refer to the Polymeric Thermal Cutoff Soldering
Recommendation guidelines.
t
s
PREHEAT
25
t
25 °C TO PEAK
Time
Profile Feature
Pb-Free Assembly
Average Ramp-Up Rate (Ts
to T )
3 °C / second max.
max
p
PREHEAT:
Temperature Min. (Ts
)
150 °C
min
Temperature Max. (Ts
)
200 °C
max
Time (Ts
to Ts
) (ts)
max
60~180 seconds
min
TIME MAINTAINED ABOVE:
Temperature (T )
217 °C
L
Time (t )
60~150 seconds
L
Peak Temperature (T )
260 °C
p
Time within 5 °C of Actual Peak Temperature (t )
20~40 seconds
6 °C / second max.
8 minutes max.
p
Ramp-Down Rate
Time 25 °C to Peak Temperature
Packaging Specifications
P-TCO-N Series per EIA 481
0.6
(.024ꢁ
1.50 +0.1 / -0
(.059 +.004 / -0ꢁ
4.0 0.10
(.157 .004ꢁ
2.0 0.05
(.079 .002ꢁ
1.75 0.10
(.069 .004ꢁ
185
(7.28ꢀꢁ
15.4*
(.606ꢁ
MAX.
DIA.
MAX.
MAX.
5.50 0.05
(.216 .002ꢁ
12.0 0.ꢀ0
(.472 .012ꢁ
4.5
(.177ꢁ
MAX.
COVER
TAPE
50
(1.97ꢁ
MIN.
HUB DIA.
ꢀ.50 0.10
(.1ꢀ8 .004ꢁ
1.10 0.10
(.04ꢀ .004ꢁ
0.1
(.004ꢁ
4.0 0.10
(.157 .004ꢁ
1.90 0.10
(.075 .004ꢁ
10.25
(.404ꢁ
12.4 +1 / -0*
(.488 +.0ꢀ9 / -0ꢁ
TYP.
MAX.
*MEASURED AT HUB
LEADER MIN.
ꢀ90
TRAILER MIN.
160
(15.ꢀ5ꢁ
(6.ꢀ0ꢁ
MM
(INCHES)
DIMENSIONS:
P-TCO-N SERIES, REV. A, 02/19
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and atwww.bourns.com/docs/legal/disclaimer.pdf.
Bourns® Polymeric Thermal Cutoff Devices (P-TCO)
Application Notice
Users are responsible for independent and adequate evaluation of Bourns® Polymeric Thermal Cutoff (P-TCO) devices in the user’s
application, including the P-TCO device characteristics stated in the applicable data sheet.
•
Polymeric Thermal Cutoff devices must not be allowed to operate beyond their stated maximum ratings. Inadequate adherence
to such maximum ratings could result in damage to the P-TCO device and lead to electrical arcing and/or fire. Circuits with
inductance may generate a voltage above the rated voltage of the P-TCO devices and should be thoroughly evaluated within the
user’s application during the P-TCO selection and qualification process.
•
•
Polymeric Thermal Cutoff devices are intended to protect against adverse effects of temporary overtemperature conditions and
are not intended to serve as protective devices where such conditions are expected to be repetitive or prolonged.
As a normal function of operation, Polymeric Thermal Cutoff devices experience thermal expansion under fault conditions.
Thus, a P-TCO device must be protected against mechanical stress, and must be given adequate clearance within the user’s
application to accommodate such thermal expansion. Rigid potting materials or fixed housings or coverings that do not provide
adequate clearance should be thoroughly examined and tested by the user, and may result in the malfunction of P-TCO devices
if the thermal expansion is inhibited.
•
•
Exposure to lubricants, silicon-based oils, solvents, gels, electrolytes, acids, and other related or similar materials may adversely
affect the performance of Polymeric Thermal Cutoff devices.
Aggressive solvents may adversely affect the performance of Polymeric Thermal Cutoff devices. Conformal coating,
encapsulating, potting, molding, and sealing materials may contain aggressive solvents including but not limited to xylene and
toluene, which are known to cause adverse effects on the performance of P-TCO devices. Such aggressive solvents must be
thoroughly cured or baked to ensure complete removal from P-TCO devices to minimize the possible adverse effect on the
device.
•
Recommended storage conditions should be followed at all times. Such conditions can be found on the applicable data sheet
and on the Polymeric Thermal Cutoff Device Moisture/Reflow Sensitivity Classification (MSL) note: https://www.bourns.com/
docs/RoHS-MSL/msl_ptco.pdf
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and atwww.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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