PMT3(310)25001 Littelfuse Inc, PMT3(310)25001 Datasheet - Page 2

• Manufacturer Part Number: PMT3(310)25001
• Description: GP THREE ELEMENTS S.A. 250V SMD
• Manufacturer: Littelfuse Inc
• Series: PMT3(310)r

Specifications of PMT3(310)25001

• Spark Over Voltage: 250V
• Impulse Discharge Current: 20kA 8x20µs
• Package / Case: Non-Standard SMD
• Mounting Type: Surface Mount
• Impulse Discharge Current (typ)@8/20us@10times: 20
• Number Of Electrodes: 3
• Dc Sparkover Voltage (typ)@100v/s: 250
• Impulse Sparkover Voltage (max)@1kv/s: 700
• Impulse Sparkover Voltage (max)@100v/s: 600
• Failsafe Protection: No
• Mounting Style: Surface Mount
• Number Of Terminals: 3
• Product Length (mm): 11.8mm
• Product Depth (mm): 8.1mm
• Product Height (mm): 9.9mm
• Capacitance (max)@1mhz: 1.5
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 90C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Tolerance: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

PMT3(310) Series
Product Characteristics
Materials
Product Marking
Glow to arc
transition current
Glow Voltage
Soldering Parameters - Reflow Soldering (Surface Mount Devices)
Reflow Condition
Pre Heat
Average ramp up rate (Liquidus Temp
(T
T
Reflow
Peak Temperature (T
Time within 5°C of actual peak
Temperature (t
Ramp-down Rate
Time 25°C to peak Temperature (T
Do not exceed
Soldering Parameters - Wave Soldering (Thru-Hole Devices)
300
280
260
2 0
220
200
180
160
1 0
120
100
S(max)
Time (Seconds)
80
60
20
L
0
0
) to peak
to T
L
- Ramp-up Rate
- Temperature Min (T
- Temperature Max (T
- Time (Min to Max) (t
- Temperature (T
- Temperature (t
p
)
Preheat Time
P
)
Gas Discharge Tube (GDT) Products
L
L
)
) (Liquidus)
Dull Tin Plate 17 .5 ± 12.5 Microns
with Ceramic Insulator
Littelfuse ‘LF’ marking, Voltage and
date code.
~ 1Amp
~ 60-200 Volts
s(min)
s(max)
s
)
P
Dwell Time
)
)
)
Pb – Free assembly
150°C
200°C
60 – 180 secs
3°C/second max
5°C/second max
217°C
60 – 150 seconds
260
10 – 30 seconds
6°C/second max
8 minutes Max.
260°C
Cooling Time
+0/-5
°C
Revised: June 28, 2010
24
PMT3(310) Series
Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.
Recommended Process Parameters:
Note: Surge Arrestors with a Failsafe mechanism should be
individually examined after soldering
Preheat:
(Depends on Flux Activation Temperature)
Solder Pot Temperature:
Solder Dwell Time:
Soldering Parameters - Hand Soldering
Storage and Operational
Temperature
Transverse Voltage (Delay Time)
Tested to ITU-T Rec. K.12
Arc Voltage
Holdover Voltage
Tested to ITU-T Rec. K.12 & REA PE 80
Temperature Minimum:
Temperature Maximum:
Preheat Time:
T
T
S(max)
S(min)
25
Wave Parameter
T
T
P
L
Customer should verify actual device performance in their specific applications.
time to peak temperature
(t 25ºC to peak)
t
Preheat
S
Please refer to www.littelfuse.com for current information.
Specifications are subject to change without notice.
(Typical Industry Recommendation)
100
150
60-180 seconds
280
2-5 seconds
Ramp-up
Lead-Free Recommendation
°
°
°
C
C
C Maximum
-40 to +90°C
< 0.2μSec
~ 10 to 35 Volts
< 150mS
t
t
P
L
Time
©2010 Littelfuse, Inc.
Critical Zone
Ramp-down
T
L
to T
P