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Specifications
Operating Temperature:
-40℃~+175℃
Tolerance:
±20%
Mfr. Part #:
SMDNTC2522N15001MK0
Package:
SMD,6x5.6mm
Key Attributes
Model Number:
SMDNTC2522N15001MK0
Product Description
Product Overview
The SMD-2522 Series Sealed Chip Thermistor is designed for reliable circuit protection and performance in various electronic applications. Featuring advanced encapsulation technology with UL94-V0 compliant materials, these thermistors offer compact size, space-saving design, and excellent high-temperature and high-humidity resistance. They are equipped with robust surge suppression capabilities and are supplied in SMD tape reels for automated lead-free reflow/wave soldering processes. Ideal for use in industrial equipment, communication devices, consumer electronics, and automotive electronics.
Product Attributes
- Brand: Songtian ()
- Series: SMD-2522
- Encapsulation Material: UL94-V0 compliant
- Packaging: SMD tape reel
- Soldering Compatibility: Lead-free reflow/wave soldering
- Origin: Shantou Free Trade Zone Songtian Electronic Technology Co., Ltd.
Technical Specifications
| Model | Nominal Zero-Power Resistance @ 25C () | Max. Steady State Current @ 25C (A) | Max. Residual Resistance @ Max. Steady State Current @ 25C () | B Value (K) 10% | Thermal Time Constant (S) | Thermal Dissipation Coefficient (mW/C) | Operating Temperature Range (C) |
|---|---|---|---|---|---|---|---|
| SMD NTC 2522 N 2R5 04** | 2.5 | 4 | 0.113 | 2600 | <35 | >11 | -40 to 175 |
| SMD NTC 2522 N 030 04** | 3 | 4 | 0.100 | 2600 | <35 | >11 | -40 to 175 |
| SMD NTC 2522 N 040 03** | 4 | 3 | 0.150 | 2600 | <35 | >11 | -40 to 175 |
| SMD NTC 2522 N 050 03** | 5 | 3 | 0.156 | 2800 | <34 | >11 | -40 to 175 |
| SMD NTC 2522 N 060 02** | 6 | 2 | 0.240 | 2800 | <34 | >11 | -40 to 175 |
| SMD NTC 2522 N 6R8 02** | 6.8 | 2 | 0.245 | 2800 | <34 | >11 | -40 to 175 |
| SMD NTC 2522 N 070 02** | 7 | 2 | 0.2824 | 2800 | <34 | >11 | -40 to 175 |
| SMD NTC 2522 N 080 02** | 8 | 2 | 0.255 | 2800 | <32 | >11 | -40 to 175 |
| SMD NTC 2522 N 100 02** | 10 | 2 | 0.275 | 2800 | <32 | >11 | -40 to 175 |
| SMD NTC 2522 N 120 01** | 12 | 1 | 0.462 | 2800 | <32 | >11 | -40 to 175 |
| SMD NTC 2522 N 130 01** | 13 | 1 | 0.465 | 2800 | <32 | >11 | -40 to 175 |
| SMD NTC 2522 N 150 01** | 15 | 1 | 0.468 | 2800 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 160 01** | 16 | 1 | 0.470 | 2800 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 180 01** | 18 | 1 | 0.495 | 3000 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 200 01** | 20 | 1 | 0.512 | 3000 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 220 01** | 22 | 1 | 0.563 | 3000 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 250 01** | 25 | 1 | 0.623 | 3000 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 300 01** | 30 | 1 | 0.667 | 3000 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 330 01** | 33 | 1 | 0.734 | 3000 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 470 01** | 47 | 1 | 1.002 | 3000 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 500 01** | 50 | 1 | 1.021 | 3000 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 600 X8** | 60 | 0.8 | 1.215 | 3000 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 800 X8** | 80 | 0.8 | 1.656 | 3200 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 101 X8** | 100 | 0.8 | 2.053 | 3200 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 121 X8** | 120 | 0.8 | 2.253 | 3200 | <30 | >11 | -40 to 175 |
| SMD NTC 2522 N 201 X5** | 200 | 0.5 | 4.121 | 3200 | <32 | >11 | -40 to 175 |
Dimensions
Product Dimensions (mm)
| L | L1 | W | L2 | H | L3 | W1 |
|---|---|---|---|---|---|---|
| 6.0 0.1 | 7.0 0.15 | 5.55 0.1 | 6.0 0.15 | 2.38 0.1 | 0.5 0.1 | 2.5 0.02 |
Pad Dimensions (mm)
| a (Min) | b | c |
|---|---|---|
| 5.5 | 2.2 0.1 | 3.6 0.2 |
Tape Packaging Dimensions (mm)
| SPEC | A0 | B0 | K0 | P | P0 | P2 | T | N (Inner Fold) |
|---|---|---|---|---|---|---|---|---|
| 5.7 0.1 | 7.3 0.1 | 2.7 0.1 | 12.0 0.1 | 4.0 0.1 | 2.0 0.1 | 0.3 0.1 | 16.0 0.3 | 0.3 0.1 |
| SPEC | W | E | F | D0 | D1 | Components/Reel (N Inner Fold) |
|---|---|---|---|---|---|---|
| 1.75 0.1 | 7.5 0.1 | 1.5 +0.1/-0 | 1.50 +0.1/-0 | 3000pcs | 0.3 0.1 | 0.3 0.1 |
13-inch Reel Dimensions (mm)
| SPEC | 12 | E 0.2 | 2.6 | F 0.2 | 10.8 | W 1.0 | 12.5 | T1 0.2 | 2.0 | T2 0.2 | 2.0 | A +0/-2 | 330 | N 3.0 | 100 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 | 2.6 | 10.8 | 12.5 | 2.0 | 2.0 | 330 | 100 |
Usage and Storage
Storage Environment
- Store under conditions: Temperature: 10~30C, Relative Humidity: 60% max.
- Use within 6 months of delivery.
- Solder NTC within 168 hours after opening the moisture-proof packaging. After opening, store NTC in the moisture-proof packaging with desiccant and HIC card.
- If storage exceeds 6 months or the HIC card indicator color changes, bake before soldering (60C * 168hr).
- Refer to baking data if product humidity exceeds requirements before reflow soldering.
- Do not store in corrosive substances (sulfur, chlorine gas, acid) to prevent pin oxidation and reduced solderability.
- Store on shelves to avoid moisture and dust.
- Avoid thermal shock, vibration, and direct sunlight in storage.
Usage Precautions
- Operating ambient temperature must be within specified technical limits.
- Install away from heat-generating or flammable components (minimum 3mm spacing recommended).
- Wear gloves when handling pins.
- This specification guarantees individual product quality. Ensure thorough evaluation and confirmation when integrated into customer products.
- Songtian is not liable for failures arising from usage beyond the scope of this specification.
- In case of NTC damage, failure may result in a short circuit. Implement fail-safe functions (e.g., fuses) to prevent fire hazards.
Soldering Instructions
Lead-Free Reflow Soldering Curve
- Soldering Temperature: 230260C
- Soldering Time: 1030s
- Preheating Temperature: 170C max.
Wave Soldering Curve
(Curve data not provided in source)
Soldering Iron Rework Conditions
| Item | Condition |
|---|---|
| Soldering Iron Tip Temperature | 400C (max.) |
| Soldering Time | 3.5 sec (max.) |
| Soldering Iron Power | 50W (max.) |
Reliability Experiments
| No. | Item | Test Method | Standard |
|---|---|---|---|
| 1 | Vibration | Frequency: 10~55Hz, Amplitude: 0.75mm, Directions: X, Y, Z axes for 2 hours each. | No visible damage, Resistance change rate: 10% |
| 2 | Solderability | Temperature: 2455C, Time: 30.5s | Uniform tinning, Area 95% |
| 3 | Resistance to Soldering Heat | Immerse leads in 260C5C solder for 101s. | Resistance change rate: 10% |
| 4 | High Temperature Storage | 1000+48 hours at 1252C, rest 2 hours before test. | Resistance change rate: 20% |
| 5 | Humidity Resistance | 1) 1000 hours at 402C, 90-95% RH. 2) 500 hours at 402C, 90-95% RH, with 1/20 of max. dissipation voltage applied (not less than 0.5V). | Resistance change rate: 20% |
| 6 | Thermal Shock | -40C (30min) 25C (5min) 125C (30min) 25C (5min), 5 cycles. | Resistance change rate: 20% |
| 7 | Endurance Test | 1) 255C, Imax, 1000h; 2) 255C, Imax, (1min ON /5min OFF) * 1000 cycles. | No visible damage, Resistance change rate: 20% |
| 8 | Insulation Withstand Voltage | Apply 750Vac for 1 minute to encapsulated surface with metal wire coil. | No external damage |
Marking Example
1. Songtian Logo
2. NTC (Negative Temperature Coefficient Thermistor)
3. 2522 (Size: approx. 6.0*5.5mm)
4. 050 (Zero-power resistance at 25C: 5.0)
5. M (Tolerance: 20%)
Curves
Resistance-Temperature Characteristic Curve
(Curve data not provided in source)
Maximum Current Derating Curve
ITa = [1-(Ta-25)/(Tu-25)] Imax
TU: Upper limit of operating temperature (C)
TL: Lower limit of operating temperature (C)
Ta: Ambient temperature (C)
Imax: Maximum steady state current
2508261540_STE-SMDNTC2522N15001MK0_C50751582.pdf
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