料號(hào)編碼規(guī)則

功率型NTC熱敏電阻的產(chǎn)品編碼由9位編碼組成，其編碼規(guī)則如下：

NTC  07  D  050  M  K  5  2  N  

 1   2   3   4   5  6  7  8  9  

料號(hào)編碼說明

PART NO.

料 號(hào)

NTC07D050MK52N

5D-7

REV NO.

版 本

0/A

頁次：第2頁，共7頁

Pages：No.2 of 7 pages

1. APPEARANCE外觀

1-1. 尺寸Dimensions (mm)

1-2. Marking標(biāo)志

NTC

 5D-7

1-3.Coating包封

□ No coating 無包封

■ Coating 包封

Material包封材料

■ PF resin 酚醛樹脂

□ Silicon 硅樹脂

□ Epoxy 環(huán)氧樹脂

□ Others 其他

Color顏色

□ Green 綠色

□ Red 紅色

□ Tan 黃色

■ Black 黑色

□ Blue 蘭色

1-4. Leads引線

□ Tin – plated copper wire 鍍錫銅線

■ Tin-plated steel wire 鍍錫鋼線

□ Straight 直形 □ Axis-formed 軸彎

■ In-Forming 內(nèi)彎 □ Out-Forming 外彎

D:≤8.5

T:≤5.0

F:5.0±1.0

d:0.50±0.06

L:＞ 25

3. INSPECTION檢驗(yàn)方法

3-1. Lot Inspection 批量檢驗(yàn)

Sampling with IEC410 / DIN ISO 2859-1 (GB/T2828.1-2003) ; Testing with SPEC.NO.:N24-12001

抽樣方法按IEC410/ DIN ISO 2859-1 ( GB/T2828.1-2003 ); 試驗(yàn)方法按 SPEC.NO.:N24-12001

Item指標(biāo)項(xiàng)目

IL

AQL

Item指標(biāo)項(xiàng)目

IL

AQL

Appearance 外觀

Ⅱ

0.65

Rated Zero-Power Resistance

額定零功率電阻 RN

Ⅱ

0.65

ldering-ability可焊性

S-2

2.5

Max.Steady State Current

穩(wěn)態(tài)電流(A)

S-2

2.5

4. STORAGE CONDITIONS存貯環(huán)境條件：

4-1.Temperature溫度:-10℃～+40℃

4-2. Humidity濕度:≤70%RH

4-3. Term期限:≤6 months (First-in/ First-out*先出)

4-4. Place地點(diǎn):

Do not exposing the components to the following conditions, otherwise, it may result in deterioration of characteristics.

不要暴露在下列環(huán)境條件下，否則將導(dǎo)致性能衰退或參數(shù)飄移：

1) Corrosive gas or deoxidizing gas. 腐蝕性或易氧化氣體

2) Flammable and explosive gases. 易燃易爆氣體

3) Oil, water and chemical liquid. 油、水和化學(xué)溶液

4) Under the sunlight. 太陽光下

4-5. Handling after seal open:After unpacking of the minimum package, reseal it promptly or store it inside a sealed container with a drying agent.

盡量保證開口最小化，立即重新封好，并貯存在密封、帶有干燥劑的容器中。

5. WARNING注意、警告 !

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.

請(qǐng)不要在下列條件下使用本元件，否則將可能導(dǎo)致產(chǎn)品性能衰退或產(chǎn)品損毀，甚至引發(fā)火災(zāi)：

1) Exceeding Imax. 超過工作電流

2) Exceeding rated temperature range. 超過許可工作溫度范圍

3) Inferior thermal dissipation (Due to badly inferior thermal dissipation, some part of the components body will become overheated and then be damaged.)

散熱不良（由于散熱不良，本元件可能因部分過熱而導(dǎo)致破壞）

6．R/T curve 阻溫曲線

1. MECHANICAL CHARACTERISTICS機(jī)械性能

Item

指標(biāo)項(xiàng)目

Specification

技術(shù)要求

Test Conditions & Methods

測(cè)試條件/方法

1-1. Solder-ability

可焊性

The terminals shall be uniformly tinned, and its area≥95%

浸潤(rùn)部分上錫均勻，上錫面積≥95%

Dipping the NTC terminals to a depth of 15mm in a soldering bath of 240-245℃ ａnd to the place of 6mm far from NTC body for2-3s (See IEC68-2-20 /GB2423.28 Ta )

將引出端沾助焊劑后，浸入到溫度為240-245℃、深度為15mm的錫槽中錫面距NTC本體下端6mm處，持續(xù)2-3秒。（參見IEC68-2-20 /GB2423.28試驗(yàn)Ta）

1-2. Resistance To Soldering Heat

耐焊接熱

No visible mechanical damage.

無可見損傷

ΔR/RN ≤20%

(ΔR =∣RN-RN'∣)

Dipping the NTC terminals to a depth of 15mm in a soldering bath of 265±5℃ ａnd to the place for 6mm below from NTC body for 10±1s.After recovering4-5h under 25±2℃. The rated zero power resistance value RN' shall be measured.

(See IEC68-2-20 /GB2423.28 Tb)

根據(jù)IEC68-2-20（GB2423 .28）試驗(yàn)Tb進(jìn)行試驗(yàn)。

采用焊槽法，將引出端沾助焊劑后，浸入到溫度為265±5℃、深度為15mm的錫槽中,錫面距NTC本體下端6mm 處，維持10±1秒. 在25±2℃條件下恢復(fù)4－5h后，復(fù)測(cè)額定零功率電阻RN'.

1-3. Strength of lead terminal

引出端強(qiáng)度

No break out

無損壞

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)

根據(jù)IEC68-2-21（GB2423 .29）試驗(yàn)U進(jìn)行試驗(yàn)。

 試驗(yàn)Ua：拉力10N，持續(xù)10 S；

 試驗(yàn)Ub：彎曲90°，拉力5N，持續(xù)10 S；

 扭轉(zhuǎn)180°，拉力5N，持續(xù)10 S。

在25±2℃條件下恢復(fù)4～5 h后，復(fù)測(cè)額定零功率電阻RN'

2.ELECTRICAL CHARACTERISTICS電氣性能

2-1.Test Conditions & Method 測(cè)試條件/方法

Items

指標(biāo)項(xiàng)目

Spec.

技術(shù)要求

Test Conditions & Methods

測(cè)試條件/方法

2-1-1.Rated Zero-Power Resistance

額定零功率電阻

R_N (W)

5±20%

Ambient temp. Range:25℃±2℃(T_A).

Testing voltage:1.5VDC

After placing for 1~2 hours under TA, the resistance value shall be measured.

環(huán)境溫度 T_A:25℃±2℃

測(cè)試電壓:1.5VDC

在常溫TA條件下，放置1~2小時(shí) 后測(cè)得阻值RN。

2-1-2.Thermal Dissipation Constant

熱耗散系數(shù)d

(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

在特定的環(huán)境溫度下，熱耗散系數(shù)(d)為熱敏電阻電功率消耗(DP)與本體溫度變化量 (DT)的比值.

2-1-3.Thermal Time Constant

熱時(shí)間常數(shù)

t (s)

≤34

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

熱時(shí)間常數(shù)(t)為在零功率條件下，熱敏電阻的溫度下降到其最初溫度與最終溫度之差為63.2% 時(shí)所需要的時(shí)間

2-1-4.Material Constant

材料常數(shù)

B (K)

2600±5%

B=T₁T₂/(T₂-T₁)×L_n(R₁/R₂)

R₁ , R₂ is zero-power resistance at T₁ , T₂

R₁ , R₂ 分別為T₁ , T₂溫度下的零功率電阻

T₁ = 298.15K(25℃) T₂ = 358.15K(85℃)

2-1-5.Max.Steady State Current

穩(wěn)態(tài)電流(A)

2.0A

No visible mechanical damage.

無可見損傷

ΔRN / RN≤20%

(ΔR =∣RN-RN'∣)

Ambient temp. Range環(huán)境溫度:25℃±2℃.

Testing Current 測(cè)試電流:3.0A

3. Reliability Test 可靠性試驗(yàn)（周期性檢測(cè)項(xiàng)目）

Items

指標(biāo)項(xiàng)目

Spec.

技術(shù)要求

Test Conditions & Methods

測(cè)試條件/方法

*3-1. Temp. Cycling Testing

溫度循環(huán)測(cè)試

No visible mechanical damage.

無可見損傷

ΔRN / RN ≤20%

(ΔR =∣RN-RN'∣)

Ta:-40±3℃/ 30min→25±2℃/ 5min→ Tb:150±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.

在Ta=-40±3℃和Tb=150±3℃的環(huán)境溫度中各存放30分鐘, 循環(huán)5次.每次高低溫循環(huán)都有在25±2℃的環(huán)境中過渡5分鐘。

樣品進(jìn)行溫度循環(huán)測(cè)試后，取出放置室溫（25±2℃）4~5小時(shí)后測(cè)量零功率電阻R_N'.

*3-2. Electrical Cycling Testing

電循環(huán)測(cè)試

No visible mechanical damage.

無可見損傷

ΔRN / RN ≤20%

(ΔR =∣RN-RN'∣)

Ambient temp. Range:25℃±2℃.

Cycles:2,000times On / Off:5 s / 55 s

Test Current3.0A

After recovering 4~5h under 25±2℃, the rated zero power resistance value RN' shall be measured.

環(huán)境溫度:25℃±2℃.

循環(huán)次數(shù):2,000次

通/斷:5 s / 55 s

測(cè)試電流:3.0A

樣品置于室溫（25±2℃）4~5小時(shí)后,測(cè)量其零功率電阻R_N'.

*3-3.LoadLife ( Endurance ) Testing

持久性測(cè)試

No visible mechanical damage.

無可見損傷

ΔRN / RN ≤20%

(ΔR =∣RN-RN'∣)

Ambient temp. Range:25℃±2℃;3.0A/ 1,000±24h

After recovering 4~5 h under 25±2℃, the rated zero power resistance value RN' shall be measured.

環(huán)境溫度:25℃±2℃.

樣品通過工作電流3.0A , 1,000±24小時(shí)后，取出置于室溫（25±2℃）4~5小時(shí)后,測(cè)量其零功率電阻R_N'.

*3-4. Humidity Testing

耐濕性測(cè)試

No visible mechanical damage.

無可見損傷

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.

在溫度40±2℃,相對(duì)濕度 93±3%的環(huán)境中放置 1000±24 小時(shí)后，取出置于室溫（25±2℃）4~5小時(shí)后, 測(cè)量其零功率電阻R_N'.