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12.4x6.4x9.8mm Plastic Shell Super Time-Lag Subminiature Fuse AC 250V 300V T 4A 5A For LED Driver Circuit
Description
Following electronic product specifications apply to fuses of
the 938 series. The 938 series is a super time lag type
subminiature fuse for over-current protection.
Its main applications are for consumer electronics, LED
drivers, power supplies, battery chargers and controllers for
industrial use.
GENERAL INFORMATION
The 938 series provides protection for printed circuit boards used
in a large variety of
applications that need fuses with time-delay, low breaking
capacity. The sub-miniature device is
constructed of a plastic cap and base with a tin plated copper lead
wire. It offers excellent
mounting characteristics and is 100% tested for cold resistance.
Detailed Features
• Subminiature fuse with time delay, low breaking capacity.
• Small, rectangular and leaded design minimizes board space and
eliminates the need for additional mounting components.
• Plastic cap / black thermoplastic fuse body.
• 0.6mm lead wires made of tin plated copper.
• Protection against harmful over-currents in primary and secondary
applications.
• Lead-free, Halogen-free, RoHS compliant.
• Designed according to IEC 60127-4.
Features
Time-Current characteristic: Time-Lag(T)
Breaking Capacity: 200A@250Vac, 100A@300Vac
Standard: IEC 60127
Approvals: CQC
Material: Body- thermoplastic, lead- tin-plating copper
Operation Temperature: -55℃ ~ +125℃
Weldability: 260℃≤10 seconds(wave-soldering), 350℃≤3 seconds(hand
welding)
Soldering Peak: 260℃, 10 seconds, /280℃, 5 seconds
Storage conditions: +10℃ ~ +60℃,average annual relative humidity
≤75%,dry maximum value of 30 days is 95%
Dimensions (units: mm)
Operating Temperature: -55°C to +125°C
Storage Conditions:
+10℃ to +60℃
Relative humidity: ≤ 75% yearly average without dew, maximum 30
days at 95%
ELECTRICAL SPECIFICATIONS
Time vs Current Characteristics Table-- IEC 60127
(measured with constant current power supply)
| Rated Current | 125% | 200% | 1000% |
| 4A/5A | >3600 sec | <120 sec | 100msec~1sec |
Electrical Characteristics
| Rated Current | Rated Voltage | Breaking Capacity | Nominal Cold Resistance (mΩ) ±30% | Voltage Drop Max(mV) | Power Dissipation Max(mW) | Melting I²t(A²s) Max |
| 4A | 250V/300V | 200A@250V AC 100A@300V AC | 18.0 | 300 | 1500 | 370 |
| 5A | 250V/300V | 13.5 | 300 | 1500 | 750 |
Notes:
1. Permissible continuous operating current is ≤100% at ambient
temperature of 23°C (73.4°F)
2. The current values used for calculating I2T should be
within the standard range of 10In
Soldering parameters
260±5℃.≤5 sec (Wave Soldering)
350℃.≤3 sec (Hand Soldering)
Soldering Peak:
260±5℃ ＜ 10 sec (IEC 60068-20)
Packaging
Tape in reel
1000pcs per box , 1.1kg/box
10000pcs per carton ,12kg.carton
