点击发送消息给对方729955777
溫度傳感器
玻封热敏电阻
PTC过流保护片
SMD贴片热敏电阻
NTC熱敏電阻
溫度開關(溫控開關)
自恢復貼片保險絲
功率型熱敏電阻器
薄膜熱敏电阻
溫度保險絲
 
當前位置﹕首頁 > 產品展示 > 功率型熱敏電阻器

功率型熱敏電阻器-抑制浪湧電流

爲了避免電子電路中在開機的瞬間産生的浪湧電流,在電源電路中串接壹個功率型NTC熱敏電阻器,能有效地抑制開機時的浪湧電流,並且在完成抑制浪湧電流作用以後,功率型NTC熱敏電阻器的電阻值將下降到非常小的程度,不會對正常的工作電流造成影響,所以在電源回路中使用功率型NTC熱敏電阻器,是抑制開機時的浪湧,以保證電子設備免遭破壞的最爲簡便而有效的措施。

*需索取相關資料,請到論壇尋查,請點擊 http://bbs.ntc-world.com/forum.php?mod=forumdisplay&fid=25 謝謝!


 

功率型熱敏電阻器

 

PART NO.
DAE5-D9MUSB

NTC THERMISTOR
2.5 Ω

REV NO.
0/A (Aug.30th,2006 )
1. APPEARANCE
 
1-1. Dimensions (mm)
 
 
        
1-2. Marking
■    NTC
      2.5D-9
□No marking  
 
1-3.Coating
 □ No coating     
■      Coating
 
       Material
      □PF resin
      ■Silicon
      □Epoxy
      □Others
 
  Color
 □Green
 □Red
 □Tan
 ■Black
 □Blue
1-4. Leads
■Tin – plated copper wire
□Tin-plated steel wire
□Straight     □ Axis-formed
■In-Forming  □ No Lead
DMax: 10.5mm
TMax: 6.0mm
F: 5.0±1.0mm
 
d: 0.8±0.06mm
Lmin:15mm
 
2. MECHANICAL CHARACTERISTICS
 
Item
Specification
Test Conditions & Methods
2-1. Solder-ability
The terminals shall be uniformly tinned, and its area≥95%
 
Dipping theNTC terminals to a depth of 15mm in a soldering bath of 245±5℃ and to the place of 6mm far from NTC body for 3±0.5s (See IEC68-2-20 /GB2423.28 Ta )
 
 2-2. Resistance To Soldering Heat
 
No visible mechanical damage.
ΔR/RN ≤20%
(ΔR =∣RN-RN’∣)
 
Dipping the NTC terminals to a depth of 15mm in a soldering bath of 260±5℃ and to the place for 6mm below from NTC body for 3±0.5s.After recovering4-5h under 25±2℃. The rated zero power resistance value RN’ shall be measured.
(See IEC68-2-20 /GB2423.28 Tb)

PART NO.
 
DAE5-D9MUSB

NTC THERMISTOR
2.5 Ω

REV NO.
0/A (Aug. 30th, 2006 )
 2-3. Strength of lead terminal
 
No break out
ΔR/RN ≤20%
(ΔR =∣RN-RN’∣)
Fasten the body and apply a force gradually to each lead until 10N and then keep for 10sec, Hold body and apply a force to each lead until  90°slowly at 5N in the direction of lead axis and then keep for 10sec, and do this in the opposite direction repeat for other terminal. After recovering 4~5h under 25±2℃, the rated zero power resistance value RN’ shall be measured.
 (See IEC68-2-21/GB2423.29 Ua / Ub)
3.ELECTRICAL CHARACTERISTICS
3-1.Test Conditions & Method
Items
Spec.
Test Conditions & Methods
3-1-1.Rated Zero-Power Resistance
RN (W)
2.5±20%
Ambient temp. Range:25℃±2℃(TA).
Testing voltage: 1.5VDC
After placing for 1~2 hours under TA, the resistance value shall be measured.
3-1-2.Thermal Dissipation Constant
(mW/°C)
11
The thermal dissipation constant(d) could be calculated by the ratio of a change in power dissipation(DP) of the thermistor to a change in temperature(DT) of the thermistor at a specified ambient temperature
3-1-3.Thermal Time Constant
t (s)
35
The time(t) shall be measured within which the temperature change of NTC thermistor is reached at 63.2% of the ambient temperature change under zero power condition
3-1-4.Material Constant
B (°K)
2600
B=T1T2/(T2-T1)×Ln (R1/R2)
R1 , R2 is zero-power resistance at T1 , T2
T1 = 298.15°K(25°C)  T2 = 323.15°K(50°C)

 
PART NO.
DAE5-D9MUSB
NTC THERMISTOR 2.5 Ω
REV NO.
0/A (Aug. 30th, 2006 )
3-1-5.Max.Steady State Current
 (A)
            4A
No visible mechanical damage.
ΔRN / RN ≤20%
(ΔR =∣RN-RN’∣)
Ambient temp. Range:25℃±2℃.
Testing Current:4A
4. Reliability Test
Items
Spec.
Test Conditions & Methods
*4-1. Temp. Cycling Testing  
    
 
 
No visible mechanical damage.
ΔRN / RN ≤20%
(ΔR =∣RN-RN’∣)
 
Ta:-40±3℃/ 30min→25±2℃/ 5min→ Tb:160±3℃/ 30min→25±2℃/ 5min      Cycles: 5times
After recovering 4~5 h under 25±2℃, the rated zero power resistance value RN’ shall be measured.
*4-2. Electrical Cycling Testing
    
Ambient temp. Range:25℃±2℃.
Cycles: 2,000times     On / Off: 5 s / 55 s
Test Current: 4A
After recovering 4~5h under 25±2℃, the rated zero power resistance value RN’ shall be measured.
*4-3.LoadLife ( Endurance ) Testing
Ambient temp. Range:25℃±2℃;  4A/ 1,000±24h
After recovering 4~5 h under 25±2℃, the rated zero power resistance value RN’ shall be measured.
*4-3. Humidity Testing
    
No visible mechanical damage.
ΔRN / RN ≤20%
(ΔR =∣RN-RN’∣)
Ambient temp. range : 40℃±2℃
R.H.:93±3% ,  Energized time:1000±24 h
After recovering 4~5 h under 25±2℃, the rated zero power resistance value RN’ shall be measured.
 
































PART NO.
DAE5-D9MUSB

NTC THERMISTOR 2.5 Ω

REV NO.
0/A (Aug. 30th, 2006 )
5. INSPECTION
5-1. Lot Inspection
Sampling with IEC410 / DIN ISO 2859-1 (GB/T2828.1-2003) ;  Testing with SPEC.NO.: WWSMF21-09.
 
Item
IL
AQL
 
Item
IL
AQL
Appearance
0.65
Rated Zero-Power Resistance
RN
0.65
 
Soldering-ability
S-2
2.5
Max.Steady State Current
 (A)
S-2
2.5
 
 
 
 
 
 
5-2. Periodic Inspection
See the items with
 
6. NUMBERING SYSTEM AND PACKING
6-1. PART NUMBERING
 
DAE
-
2R5
-
D9
M
U
S
B
 
                ②       ③    ④  ⑤  ⑥  ⑦  

Series:
② Rated Zero Power Resistance: 5 - 5Ω   2R5 – 2.5Ω
③ Disc. Diameter:  D9 - 9mm   D15 - 15mm
④ Tolerance of Resistance:  M - ±20%   K - ±10%   
⑤ Shape of Leads:   U - In-formed  S - Straight           
A - Axis Formed    N - No Leads
⑥ Coating Material:S - Silicone     N - No Coating
P - PF Resin    E - Epoxy
⑦ Packing Type:B - Bulk  A - Ammo  R - Reel
 
 
 
6-2.Lot Numbering
 
0
 
1
 
01
 
①          ②           ③
① Year of ex-factory  0: 2000 (1: 2001, …, 9: 2009)
② Month of ex-factory  1: January (2: Feb,…, 9: Sep, O: Oct, N: Nov, D: Dec).
③ Serial number of ex-factory in current month: 01~99: No. 01~99,  J0: No.100,  J1~J9: No.101~109,  K0:No.110,
 
 
 
 
                                                                                                                                  
Page (s): 5/5
 
PART NO.
  
DAE5-D9MUSB

NTC THERMISTOR  2.5 Ω

REV NO.
 
0/A (Aug. 30th, 2006 )
6-3. Packing Type
■ Bulk       
□ Ammo     
□ Reel       
   
7. Operating Temperature Range:
-55 ~ + 200℃
8. STORAGE CONDITIONS:
8-1.Temperature: -10℃~+40℃ 
8-2. Humidity: ≤70%RH
8-3. Term: ≤6 months (First-in/ First-out)
8-4. Place: 
Do not exposing the components to the following conditions, otherwise, it may result in deterioration of characteristics. :
1) Corrosive gas or deoxidizing gas.
2) Flammable and explosive gases.
3) Oil, water and chemical liquid.
4) Under the sunlight.
 
8-5. Handling after seal open: After unpacking of the minimum package, reseal it promptly or store it inside a sealed container with a drying agent.
   
 
9. WARNING  !
Do not apply the components under the following conditions, otherwise, it may result in deterioration of characteristics, destruction of components or in the worst case, to catching fire.
1) Exceeding Imax.
2) Exceeding rated temperature range.
3) Inferior thermal dissipation (Due to badly inferior thermal dissipation, some part of the components body will become overheated and then be damaged.)
 
 

 

 

首頁  |  公司簡介  |  產品展示  |  技術論壇  |  聯絡我們
© 深圳市全威熱敏電阻有限公司 版權所有 粤ICP备13052334号
熱敏電阻吧  NTC熱敏電阻吧  溫度傳感器吧  熱敏電阻論壇  全威騰訊企業空間  全威新浪企業微博