Description

•The first and most reliable surface mount telecom circuit protector designed to protect against power cross faults and comply with all surge requirements.

•Allows compliance with telecom regulatory standards including Bellcore GR 1089, UL 1950/60950, and FCC part 68. Application circuit testing is recommended.

•Eliminates the need for a current limiting resistor.

•Protects against overcurrent conditions found in telecom Subscriber Line Interface Cards (SLICs), xDSL Modem Applications, Set-Top Boxes, and Consumer Premises Equipment (CPE).

•TCP1.25A tested and confirmed compatible with STMicroelectronics Trisil™ Transient Surge Arrestor  (list of part numbers below)

STMicroelectronics Trisil™ P/N’s
- SMP100LC-XXX
- SMP100MC-XXX

ELECTRICAL CHARACTERISTICS

% of Amp Rating	Opening Time
100%	4 Hours Minimum
250%	1 Second Minimum
250%	4-10 Seconds Typical
250%*	120 Seconds Maximum
300%	10 Seconds Maximum

 

* AC Interrupting Rating (Measured at designated voltage, 100% power factor)

** DC Cold Resistance (Measured at 10% of rated current)

*** On RoHS Compliant Version (-R option)

† Typical Melting I2

t (Measured with a battery bank at 60V DC, 10x-rated current, time constant of calibrated circuit less than 50 microseconds)

‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)

Special Investigation

The TCP1.25A is designed to provide overcurrent protection for telecom SLIC, xDSL modem, and set-top box applications regardless of the overvoltage device selected. To provide an easier specification experience, Cooper Bussmann and STMicroelectronics have joined together to provide a special test report confirming the coordination between the TCP1.25A and SMP100MC-270 devices.

TEST CIRCUITS


TEST PROGRAM

Test	Standard	Results
Lightning Surge Tests
10/1000µs + and –1kV 100A (25 pulses of each polarity)	Bellcore GR-1089	Passed
2/10µs + and –2.5 and 5kV 500A (10 pulses of each polarity)	Bellcore GR-1089	Passed
10/560µs + and –800V 100A (1 pulse of each polarity)	FCC Part 68	Passed
10/160µs + and –1.5kV 200A (1 pulse of each polarity)	FCC Part 68	Passed
10/700µs + and –1.5kV 37.5A (5 pulses of each polarity)	K20	Passed
Electrical and Power Cross Tests
600V 3A 1.1s (first level)	Bellcore GR-1089	Passed
277V 25A (second level)	Bellcore GR-1089	Passed
600V 60A 5s(second level)	Bellcore GR-1089	Passed
600V 40A 1.5s	UL 60950	Passed
600V 2.2A 30min	UL 60950	Passed
600V 1A 0.2s (A criteria)	K20	Passed
230V 1.44A/0.77A/0.38A 15min (A criteria)	K20	Passed
230V 23A 15min (A criteria)	K20	Passed

For additional information on STMicroelectronic’s Trisil™ Product line, please see www.st.com/protection


TCP500MA & TCP2A,Telecom Circuit Protector

*If the device does not open at 250% within 120 seconds, increase current to 300% of amp rating. Device must open in 10 seconds max

Ordering

•Specify packaging, product and option code (i.e., TR2/TCP500-R)
 

Soldering Method

•Wave Immersion: 260°C, 10 sec max.

•Infrared: 260°C, 30 sec max.

Dimensions mm⁄(inches)


LIGHTNING SURGE SPECIFICATIONS

Surge Specification	Surge	Repetitions	Waveform (µSec.)	Current (A)	Voltage (V)	Performance Requirement
TCP 500mA tested
FCC 47 Part 68	Longitudinal Type B	2	5x320	37.5	N/A	Fuse cannot open
FCC 47 Part 68	Metallic Type A	2	10x560	100	800	Fuse must open safely
Surge out		25	10x160	65	N/A	Fuse cannot open
TCP2A tested
FCC 47 Part 68	Longitudinal Type A	2	10x160	100 per fuse	1500	Fuse cannot open
FCC 47 Part 68	Metallic Type B	2	10x560	100	800	Fuse cannot open
Bellcore GR-1089-CORE	First Level Lightning	50	10x1000	100	1000	Fuse cannot open
Bellcore GR-1089-CORE	First Level Lightning	50	2x10	500	2500	Fuse cannot open
Surge out		1	10x160	160	N/A	Fuse cannot open
Surge out		1	10x560	115	N/A	Fuse cannot open

ELECTRICAL AND POWER CROSS SPECIFICATIONS

Product Code	Voltage Rating AC	Interrupting Rating* 250VAC    600VAC		DC Cold Resistance** (ohms) min.     typ.     max.			Typical Melting I2t†	Maximum Total Clearing	Typical Voltage Drop‡	Alpha Code Marking 1st Code   2nd Code
TCP500mA	250 V	50 A	40 A	0.420	0.530	0.640	1.3 A2s	100 A2s	471mV	F	R***
TCP2A	250 V	50 A	60 A	0.050	0.075	0.100	30 A2s	100 A2s	205mV	N