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Disc Disk Ring Shaped Ceramic PTC Thermistor Stone for Telecom High Voltage Current Surge Protection
Product Details:
| Place of Origin: | CHINA |
| Brand Name: | AFTPTC |
| Certification: | ROHS |
| Model Number: | MZ2 |
Payment & Shipping Terms:
| Minimum Order Quantity: | 5000PCS |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Bulk |
| Delivery Time: | 2 weeks |
| Payment Terms: | T/T, Western Union, D/P, D/A, L/C |
| Supply Ability: | 100,000,000pcs per month |
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Detail Information |
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| Name: | Ceramic PTC Thermistor | Typical Resistance @25C (R25): | 10 Ohm, 12 Ohm, 18 Ohm, 20 Ohm, 25 Ohm, 50 Ohm, 55 Ohm. |
|---|---|---|---|
| Voltage Of Power Supply: | 250VAC | Initial Current: | 3A |
| Application: | Telecom High Voltage Current Surge Protection | Compliant With: | ITU-T K20 K21 K45 |
| Highlight: | ceramic PTC thermistor for telecom,disc-shaped PTC thermistor stone,high voltage surge protection thermistor |
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Product Description
Disc Disk Ring Shaped Ceramic PTC Thermistor for Telecom High Voltage Current Surge Protection
Ceramic PTC thermistors designed specifically for telecom applications requiring high voltage current surge protection. These disk and ring shaped components provide reliable overcurrent protection for telecommunications equipment.
Telecom Equipment Applications
- Central Office Switching Equipment: analog and digital line cards, POTS, T1/E1 equipment
- xDSL modems and splitters, multiplexers, CSU/DSU, servers
- Primary Protection Modules: MDF modules, network interface devices (NIC)
- Custom Premises Equipment: modems, phone sets, fax machines, PBX systems
- Access Network hardware, LAN/WAN equipment, Powered Ethernet systems
- VoIP equipment, integrated voice data systems, Set-top boxes
- Landline telephones and FAX machines
Key Features
- Compliant with ITU-T K20, K21, K45 standards
- Basic level lightning surges (10/700μs) and power induction protection
- Suitable for continuous connection to main voltage 110/230 VAC
- Round leadless disk construction for combined usage with primary protection
- Available diameters: 5mm to 10mm, coated and non-coated options
- Typical resistance values: 10Ω, 12Ω, 18Ω, 20Ω, 25Ω, 50Ω, 55Ω
- Narrow resistance tolerance matching available
- Negligible resistance drift after soldering or switching
Performance Specifications
Rated Zero-power Resistance (R25): Operating temperature range: 25±2℃
Non-operating Characteristic: Operating temperature range: 40±2℃, Max voltage: 60VDC
Over-current Operating Characteristic: Max voltage: 220Vrms, rapid tripping time
Over Voltage Withstanding: 250VAC, 3A initial current, 30min energized time
Surge Current Withstanding: 10/1000μS current waves, 25A peak current
Induction Voltage Current Withstanding: 650VAC, 1.1A initial current
Restore Time: Returns to twice R25 within ≤60 seconds
PTC Thermistor Technical Data
| Part Number | Resistance @25C R25 (Ω) | Non-trip Current Int (mA) | Trip Current @25C It (mA) | Tripping Time (Seconds) | Max Current Imax (A) | Max Voltage Vmax (V) | Fail Model | Dimension (mm) |
|---|---|---|---|---|---|---|---|---|
| MZ23-10RM130 | 10 | 130 | 100 | <0.2s | 2.0 | 250 | 250V/10A | 7.5×4.0×0.6 |
| MZ23-10RM150 | 10 | 150 | 100 | <0.3s | 2.0 | 250 | 250V/10A | 9.0×5.0×0.6 |
| MZ23-12RM130 | 12 | 130 | 100 | <0.3s | 2.0 | 250 | 250V/10A | 9.0×5.0×0.6 |
| MZ23-12RM090 | 12 | 90 | 60 | <0.2s | 2.0 | 250 | 250V/10A | 9.0×5.0×0.6 |
| MZ23-20RM100 | 20 | 100 | 80 | <0.2s | 3.0 | 250 | 250V/10A | 9.0×4.0×0.6 |
| MZ23-35RM090 | 35 | 90 | 75 | <0.2s | 3.0 | 250 | 250V/5A | 9.0×5.0×0.6 |
| MZ23-40RM080 | 40 | 80 | 70 | <0.2s | 3.0 | 250 | 250V/5A | 9.0×5.0×0.6 |
| MZ23-50RM070 | 50 | 70 | 60 | <0.2s | 3.0 | 250 | 250V/5A | 9.5×5.0×0.6 |
| MZ23-50RM075 | 50 | 75 | 60 | <0.2s | 3.0 | 650 | 650V/10A | 9.5×5.0×0.6 |
| MZ23-55RM070 | 55 | 70 | 60 | <0.2s | 3.0 | 650 | 650V/10A | 9.5×5.0×0.6 |
| MZ25-9RM160 | 9 | 160 | 130 | <0.8s | 3.0 | 250 | 250V/10A | 10.5×4.5×0.6 |
| MZ25-25RM100 | 25 | 100 | 80 | <0.2s | 3.0 | 250 | 250V/10A | 6.6×4.0×0.6 |
| MZ25-25RM120 | 25 | 120 | 100 | <0.4s | 3.0 | 250 | 250V/10A | 8.2×4.0×0.6 |
| MZ26-35RM080SMD | 35 | 80 | 60 | <0.2s | 2.5 | 250 | 250V/10A | / |
Standard Resistance @25C (R25) allowable tolerance +/-20%, if not specified.
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