K81A245 MACOM | Alldatasheet

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Technical content

www.circuitprotection.com Applications:

  • Cordless telephones
  • VoIP gateways
  • Fax machines
  • Data modems
  • Set-top boxes
  • Security systems
  • MDF modules
  • Analog and ISDN linecards Raychem Circuit Protection, the leader in innovative circuit protection solutions, has introduced the industry’s first integrated overcurrent/overvoltage protection solu- tion—the 2Pro device. The RoHS-compliant component incorporates PolySwitch PPTC (Polymeric Positive Temperature Coefficient) and metal oxide varistor technol- ogy in a single device to reduce board space requirements and component count. Damage to telephony communications equipment can be caused by various sources including lightning and ESD surges, power contact and induction with AC lines. The 2Pro TM2P-10271 and TM2P-10271E devices help provide current limit- ing during overcurrent events, and voltage clamping during overvoltage events. After a fault condition is removed and power is cycled, 2Pro devices will reset so that communications equipment remains operational. With the introduction of the 2Pro devices Raychem Circuit Protection addresses the need for resettable circuit protection devices for use in cost-sensitive PSTN (Public Switched Telephone Network) and VoIP (Voice over Internet Protocol) telepho- ny equipment. The widespread use of VoIP gateways in homes and enterprise environments as the primary means of voice delivery requires the utmost safety and reliability in equipment. 2Pro circuit protection devices are designed specifically to help manufacturers comply with global safety standards, including UL 60950, TIA-968-A, IEC 60950, and ITU-T K.20/K.21 . The UL 497A listed protector also helps provide ESD protection. 2Pro Devices Help Provide Reliable Connectivity Benefits:
  • Single device helps reduce component count and footprint
  • Helps reduce warranty returns
  • Helps equipment comply with surge tests per: TIA-968-A, IEC 60950, ITU-T K.20/K.21
  • Helps simplify UL 60950 testing
  • Helps equipment comply with UL 60950 Features:
  • Single overcurrent, overvoltage and ESD protection device
  • Resettable overcurrent protection
  • UL 497A listed protector (#E258475)
  • RoHS compliant Overcurrent (terminals 1 – 2)—Performance ratings @ 20°C Resistance† Time to T rip (s)† IHOLD ITRIP ( Ω)@ 1 A (A) (A) R min. R max. R1 max* T yp Max Part Number TM2P-10271 TM2P-10271E‡ Part Number TM2P-10271 TM2P-10271E‡ Overvoltage (terminals 2 – 3) Varistor Voltage DC Resistance Maximum Clamping Rated V @ 1mA @ 100V Voltage @ 25A Wattage DC (V) T olerance (M Ω) (V) (W) 270 ± 10% >10 455 0.25 270 ± 10% >10 455 0.25 (3) (2)(1) * Maximum device resistance at 20°C measured 1 hour post trip. † Corresponds to operation below varistor voltages. ‡ Data is preliminary.

Part Numbering System T ypical Time-to-T rip at 25°C for 2Pro Devices Mechanical Dimensions Ordering Information Physical Characteristics T est Conditions Passive aging 60°C, 1000 hours / 85°C, 1000 hours Humidity aging 85°C, 85% RH, 1000 hours Active aging 60°C, 90% RH, 60Vdc bias,1000 hours Thermal shock 125°C, -55°C (10 times) Solvent resistance MIL -STD-202, Method 215K Environmental Specifications TM 2P- Typical PPTC resistance (ohms)

271 E10 -2

Blank: Bulk -2: Tape & reel Modifier (optional) E = Enhanced lightning Varistor voltage indicator The first two digits indicate voltage. The third digit signifies the power of ten. For example: 220: 22 x 10 0 = 22v 221: 22 x 101 = 220v 112: 11 x 102 = 1100v Telecom Module 2Pro™ Series Lead material 22 AWG Sn plated copper Flammability IEC 695-2-2 Needle flame test for 20s Soldering characteristics ANSI approved IPC/EIA/JEDEC J-STD-002, Category 3 Solder heat withstand IEC-STD 68-2-20, Section 5, Test Tb, Method 1A Bulk 500 pieces/bag 10,000 pieces/box Tape & Reel 1,500 pieces/reel 7 ,500 pieces/box ABCD E F Min Max Min Max Min Max Min Max Nom Min Max mm — 12 — 15 — 6.6 6.0 — 2.5 — 12 A (3) (2) (1) E Center to Center Typ. F C B D Packaging and Marking Information Part Number Bag Quantity T ape & Reel Quantity Standard Package Part Marking Agency Recognition TM2P-10271 500 - 10,000 1027 & Batch # UL 497A/File No. E258475 TM2P-10271-2 - 1,500 7 ,500 1027 & Batch # UL 497A/File No. E258475 TM2P-10271E 500 - 10,000 3527 & Batch # Pending TM2P-10271E-2 - 1,500 7 ,500 3527 & Batch # Pending 2Pro, PolySwitch, Raychem, and Tyco are trademarks. All information, including illustrations, is believed to be reliable. Users, however, should independently evaluate the suitability of each product for their application. Tyco Electronics Corporation makes no warranties as to the accuracy or completeness of the information, and disclaims any liability regarding its use. Tyco Electronics’ only obligations are those in the Company’s Standard Terms and Conditions of Sale for this product, and in no case will Tyco Electronics be liable for any incidental, indirect, or consequential damages arising from the sale, resale, use or misuse of the product. Specifications are subject to change without notice. In addition, Tyco Electronics reserves the right to make changes—without notification to Buyer—to materials or processing that do not affect compliance with any applicable specification. Worldwide Headquarters

308 Constitution Drive, MS R21/2A

Menlo Park, CA USA 94025-1164 Tel (800) 227-7040 (650) 361-6900 Fax (650) 361-2508 www.circuitprotection.com www.circuitprotection.com.hk (Chinese) www.raychem.co.jp/polyswitch (Japanese) © 2006 Tyco Electronics Corporation. Printed in USA. RCP007 4.0606.xxx 0.001 0.01 0.1 100 0.1 1 10 100 Short Circuit Current (A) Time-to-T rip (s) PPTC only TM2P at 600Vac Note: Storage conditions: 40°C max., 70% RH max., devices should remain in original sealed bag prior to use. Devices may not meet specified values if these storage conditions are exceeded.