FT600-0500-2 - TE CONNECTIVITY / RAYCHEM

103

Surface-mount Fuses – Telecom Fuses

The telecom FT600 fuse helps telecommunications

equipment manufacturers comply with North American

overcurrent protection requirements, including Telcordia

GR-1089, TIA-968-A (formerly FCC Part 68), and

UL60950 3rd edition.

TE Circuit Protection’s telecom fuses offer low

temperature-rise performance under sneak current fault

events to help prevent damage to circuit traces or

multilayer boards, and their low profile and small

footprint make them suitable for high-density and

space-constrained applications.

• High density placement in multi-port system designs

• Improved temperature rise performance over other

similar surface-mount fuse devices under sneak

current testing

• The FT600, in conjunction with a thyristor surge

suppression device, assists designers to meet

regulatory standards without additional series

components

• Lead free materials and RoHS compliant

• Halogen free

(refers to: Brⱕ900ppm, Clⱕ900ppm, Br+Clⱕ1500ppm)

• Low profile and small footprint

• The lightning robust surface-mount fuse offers

overcurrent protection in case of power fault events

• Enables the design of equipment complying with

applicable telecom specifications including

UL60950, TIA-968-A, and Telcordia GR-1089

• Low resistance

• ADSL, ADSL2, ADSL2plus, SHDSL, VDSL linecards and modems

• T1/E1 systems

• Twisted-pair telecom ports requiring Telcordia GR-1089, UL60950 and FCC Part TIA-968-A compliance

Benefits Features

Applications

Surface-mount Fuses

Telecom Fuses

104 RoHS Compliant, ELV Compliant HF Halogen Free

Protection Application Guide for Telecommunications and Networking Devices

Customer premises equipment, IT equipment UL 60950 FT600-0500 FT600-2000

Analog modems, V.90 modems, TIA-968-A FT600-1250

ISDN modems, xDSL modems,

ADSL splitters, phone sets, fax machines,

answering machines, caller ID, internet

appliances, PBX systems, POS terminals, wall plugs

Access network equipment Telcordia GR-1089 FT600-1250 FT600-2000

Remote terminals, line repeaters, multiplexers, TIA-968-A

cross-connects, WAN equipment

Central office switching equipment Telcordia GR-1089 FT600-1250 FT600-2000

Analog/POTS linecards, ISDN linecards, xDSL modems, TIA-968-A

ADSL/VDSL splitters, T1/E1 linecards,

multiplexers, CSU/DSU, servers

Note : This list is not exhaustive.TE Circuit Protection welcomes our customers’ input for additional application ideas for overcurrent protection of telecom applications.

Application Specification

Faster Cooler Surface

Time-To-Open Temperature

To use this guide, follow the steps below:

1. Select your equipment type from the guide below.

2. Use the Key Device Selection Criteria (time-to-open, surface temperature) to determine best suitability for your application.

3. Use Agency Specification / Selection Guide to select a specific part number for each application based on the agency requirements.

Agency Specification/Selection Guide for FT600 Devices

Family Product Lightning Power Cross

FT600 FT600-0500 TIA-968-A – Types A & B UL60950, 3rd Ed. – 600VAC, 40A

FT600-1250 Telcordia GR-1089 – Level 1 and 2 Telcordia GR-1089 – 600 VAC, 40A

FT600-2000 TIA-968-A UL60950

Use the guide below to select FT600 devices appropriate for use in your application. The following pages contain specifications for part

numbers recommended below. FT600 devices enable telecommunication equipment to meet the applicable protection requirements of

these industry specifications. Refer to individual agency specifications for test procedures and circuit schematics. Users should

independently evaluate the suitability of, and test each product for their application.

FT600-0500 0.50 250 0.50 1

FT600-1250 1.25 250 0.10 16

FT600-2000 2.00 250 0.05 18

Part Number

Ampere Rating

(A)

Voltage Rating

(V)

Typical Resistance

(Ω)

Typical I2t

(A2s)*

130

120

110

10 0

-70 -50 -30 -10 10 30 50 70 90 110 130

Ambient Temperature ˚C

% of Current Rating

Notes: FT600-1250 and FT600-2000 assist equipment in complying with Telcordia GR-1089 specifications. In-circuit testing is strongly recommended.

The FT600-0500, FT600-1250 and FT600-2000 help meet the UL60950 Power Cross and FCC TIA-968-A 68 lightning surge requirements. Note that Type A tests allow for an

overcurrent protection component to fuse open during the surge.

Note: The FT600-xxxx devices carry 100% of rated current for 4 hours minimum and 250% of rated current for 1 second minimum, 120 seconds maximum.

Resistance measured at 10% of rated current.

*I2t is calculated at 10 ms or less.

Key Device Selection Criteria

Table FT1 Interrupt Voltage and Current Ratings for FT600 Devices

Figure FT1 Thermal Derating Curve (Normalized) for FT600 Devices

105

Surface-mount Fuses – Telecom Fuses

RoHS Compliant, ELV Compliant HF Halogen Free

10 0

0.1

0.01

0.001

0.1 1 10 1001000

Current in Amperes

Time (sec)

ABC

0.500A 1.25A 2A

Figure FT3

FT600-0500 — 10.2 — 3.1 — 3.1 FT2

(0.402) (0.122) (0.122)

FT600-1250 — 10.2 — 3.1 — 3.1 FT2

(0.402) (0.122) (0.122)

FT600-2000 — 10.2 — 3.1 — 3.1 FT2

(0.402) (0.122) (0.122)

Min. Max.

Min. Max.Part Number Figure

FT600

A=FT600-0500

B=FT600-1250

C=FT600-2000

Table FT2 Dimensions for FT600 Devices in Millimeters (Inches)

Figure FT2 Dimension Figures for FT600 Devices

Figure FT3 Typical Time-to-open Characteristics (at 20°C) for FT600 Devices

106 RoHS Compliant, ELV Compliant HF Halogen Free

Physical Characteristics

Terminal material Silver-plated brass*

Body material Ceramic

Termination solderability Per IEC-60127-4

*FT600 devices use high Pb content solder for internal construction. They are RoHS compliant.

Environmental Specifications

Test Conditions

Solder heat withstand Per MIL-STD-202, Method 210, Test Condition J

Solvent resistance Per MIL-STD-202F, Method 215J

Storage temperature ⱕ30°C/ 85% RH

Storage humidity Per MIL-STD-202F, Method 106F

FT600-0500-2 — 2,500 10,000 500 UL, CSA

FT600-1250-2 — 2,500 10,000 1250 UL, CSA

FT600-2000-2 — 2,500 10,000 2000 UL, CSA

Note: The -2 designates tape and reel, the package style for this product.

Device AB C DFigure for Dimensions

FT600-0500 12.6 4.0 3.7 5.2 FT4

(0.496) (0.157) (0.145) (0.204)

FT600-1250 12.6 4.0 3.7 5.2 FT4

(0.496) (0.157) (0.145) (0.204)

FT600-2000 12.6 4.0 3.7 5.2 FT4

(0.496) (0.157) (0.145) (0.204)

Solder Reflow and Rework Recommendations for FT600 Devices

Solder Reflow

• Recommended reflow methods: IR, vapor phase oven, hot air oven

• Devices can be cleaned using standard industry methods and solvents

Rework

• If a device is removed from the board, it should be discarded and

replaced by a new device

Preheating Soldering Cooling

300

250

200

150

10 0

30-90 120

10 to 20

Temperature (˚C)

Time (s)

Figure FT5

Figure FT4

Part Number

Bag

Quantity

Tape & Reel

Quantity

Standard Package

Quantity Part Marking Agency Recognition

Table FT3 Physical Characteristics and Environmental Specifications for FT600 Devices

Table FT4 Packaging and Marking Information for FT600 Devices

Table FT5 Recommended Pad Layouts for FT600 Devices in Millimeters (Inches) Nominal

107

Surface-mount Fuses – Telecom Fuses

RoHS Compliant, ELV Compliant HF Halogen Free

Table FT6 Tape and Reel Specifications for FT600 Devices

Dimension

Description EIA Mark Dimension (mm) Tolerance

Carrier tape width W 24 ±0.3

Sprocket hole pitch P04 ±0.1

P18 ±0.1

P22 ±0.1

A03.68 ±0.1

B010.44 ±0.1

Sprocket hole diameter D01.5 +0.1 / -0.0

F 11.5 ±0.1

E11.75 ±0.1

Tape thickness T max. 0.3 ±0.05

K03.25 +1.0 / -0.05

Reel Dimensions

Reel diameter A max. 331.5

Core diameter N min. 98.5

Space between flanges less devices W025 ±0.5

Reel width W1max. 31

P0Note 1

P2Note 6

FNote 6

See “Detail A”

Detail A

ø13.2±0.2

(0.52±0.008)

17.2±0.2

(0.677±0.008)

2.2±0.2

(0.087±0.008)

120°

Figure FT6 EIA Referenced Taped Component Dimensions for FT600 Devices

Figure FT7 EIA Referenced Reel Dimensions for FT600 Devices

Notes:

1. 10 sprocket hole pitch cumulative tolerance ±0.2

2. Allowable camber to be 1mm/250mm

3. Material: Black conductive

4. A0and B0measured on a plane 0.3mm above the

bottom of the pocket

5. K0measured from the plane on the inside bottom

of the pocket to the top surface of the carrier

6. Pocket position relative to sprocket hole measured

as true position of pocket, not pocket hole

7. Quantity per reel to be 174m

108 RoHS Compliant, ELV Compliant HF Halogen Free

Part Numbering System for FT600 Devices

FT 600 - 1250 -2

Packaging

-2 = Tape and Reel

Current in Amperes

1250 = 1. 25

0500 = 0.500

2000 = 2.00

Voltage Rating

Product Family

Warning :

All information, including illustrations, is believed to be accurate and reliable. Users, however, should independently evaluate the suitability of and

test each product selected for their application. Tyco Electronics Corporation and/or its Affiliates in the TE Connectivity Ltd. family of companies

(“TE”) makes no warranties as to the accuracy or completeness of the information, and disclaims any liability regarding its use.TE’s only obligations

are those in the TE Standard Terms and Conditions of Sale for this product, and in no case will TE 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,TE reserves the right to make changes to materials or processing that do not affect compliance with any applicable specification without

notification to Buyer.