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สเปคแต่ละรุ่น 12703: Chip model: TEC1-12703 Dimensions: 40*40*4.0mm±0.1 Component pairs 127 Wire specifications: lead length 310mm±5mm, RV standard wire, single-ended 5mm tinned Internal resistance: 4.0~4.3Ω (ambient temperature 23±1℃, 1kHZ Ac test) Large temperature difference: △Tmax(Qc=0) above 60℃. Working current: Imax=12 (at rated voltage startup) Rated voltage: DC12V (Vmax: 15.5V) Cooling power: Qcmax 27W Assembly pressure: 85N/cm2 Working environment: temperature range -55℃～83℃ (excessive ambient temperature drop directly affects cooling efficiency) Encapsulation process: standard 704 silicone rubber seal around Packaging standard: foam box packaging, storage conditions Ambient temperature -10 ℃ ~ 40 ℃ Storage conditions: -40~60℃ 12704: Chip model: TEC1-12704 Dimensions: 40*40*4.2mm Component pairs 127 Wire specifications: lead length 100±5mm, RV standard wire, single end 5mm tinned Internal resistance: 3.0~3.3Ω (ambient temperature 23±1℃, 1kHZ Ac test) Large temperature difference: △Tmax(Qc=0) above 60℃. Working current: Imax=12 (at rated voltage startup) Rated voltage: DC12V (Vmax: 15.5V) Cooling power: Qcmax 36W Assembly pressure: 85N/cm2 Working environment: temperature range -55℃～83℃ (excessive ambient temperature will directly affect cooling efficiency) Encapsulation process: standard 704 silicone rubber seal around Packaging standard: foam box packaging, storage conditions Ambient temperature -10 ℃ ~ 40 ℃ Storage conditions: -40~60℃ 12705: Chip model: TEC1-12705 Dimensions: 40*40*3.8mm Component pairs 127 Wire specifications: lead length 100±5mm, RV standard wire, single end 5mm tinned Internal resistance: 2.4~2.7Ω (ambient temperature 23±1℃, 1kHZ Ac test) Large temperature difference: △Tmax(Qc=0) above 61℃. Working current: Imax=5 (at rated voltage startup) Rated voltage: DC12V (Vmax: 15.5V) Cooling power: Qcmax 45W Assembly pressure: 85N/cm2 Working environment: temperature range -55℃～83℃ (excessive ambient temperature will directly affect cooling efficiency) Encapsulation process: standard 704 silicone rubber seal around Packaging standard: foam box packaging, storage conditions Ambient temperature -10 ℃ ~ 40 ℃ Storage conditions: -40~60℃ 12706: Chip model: TEC1-12706 External dimensions: 40*40*3.75mm Internal resistance: 2.1~2.4Ω (ambient temperature 23±1℃, 1kHZ Ac test) Large temperature difference: △Tmax (Qc=0) above 59℃. Working current: Imax=4.3-4.6A (at rated 12V) Rated voltage: 12V (Vmax: 15V starting current 5.8A) Cooling power: Qcmax 60-72W Working environment: temperature range -55℃～83℃ (excessive ambient temperature drop directly affects cooling efficiency) 12708: Chip model: TEC1-12708 Dimensions: 40*40*3.5mm Component pairs 127 Wire specifications: lead length 300±8mm, RV standard wire, single end 5mm tinned Internal resistance: 1.5~1.7Ω (ambient temperature 23±1℃, 1kHZ Ac test) Large temperature difference: △Tmax(Qc=0) above 60℃. Working current: Imax=8A (at rated voltage startup) Rated voltage: DC12V (Vmax: 15.5V) Cooling power: Qcmax 77W Assembly pressure: 85N/cm2 Working environment: temperature range -55℃～83℃ (excessive ambient temperature will directly affect cooling efficiency) Encapsulation process: standard 704 silicone rubber seal around Packaging standard: foam box packaging, storage conditions Ambient temperature -10 ℃ ~ 40 ℃ Storage conditions: -40~60℃ 12709: Maximum voltage 15.2V High current 9A Large output cooling capacity 107W Great temperature difference of 68 degrees Number of element pairs 82 Dimension 40*40*3.4 12710: Chip model: TEC1-12710 Dimensions: 40*40*3.4mm Component pairs 127 Wire specifications: lead length 300±5mm, RV standard wire, single-ended 5mm tinned Internal resistance: 1.2~1.5Ω (ambient temperature 23±1℃, 1kHZ Ac test) Large temperature difference: △Tmax(Qc=0) above 60℃. Working current: Imax=10A (when 15Vmax voltage starts) Rated voltage: DC12V (Vmax: 15.5V) Cooling power: Qcmax 92W Assembly pressure: 85N/cm2 Working environment: temperature range -55℃～83℃ (excessive ambient temperature will directly affect cooling efficiency) Encapsulation process: standard 704 silicone rubber seal around Packaging standard: foam box packaging, storage conditions Ambient temperature -10 ℃ ~ 40 ℃ Storage conditions: -40~60℃ 12712: Maximum voltage 15.7V High current 12.0A Large output cooling capacity 107W Great temperature difference of 68 degrees 12715: Product Model: TEC1-12715 Maximum voltage: 15.4V High current: 15A Cooling capacity: 134W Temperature difference: 65℃ Dimensions: 40*40*3.3mm