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HY-71 10
Micro-heater
Miniature Proportionally Controlled Heater
400 Hot Springs Road, Carson City NV 89706 * (775) 883-0820 * Fax (775) 883-0827 * www.hytek.com * 33
TEC Controllers
Features:

Description:
The HY7110 is a miniature proportionally controlled heater whose temperature can be programmed with a single external resistor. This device is ideally suited for regulating the temperature of sensitive electronic components such as microwave filters, optical waveguides, multiplexers and crystal oscillators. The HY7110 in a ceramic package can supply up to 28 Watts of power from an unregulated 28 Volt supply.
Beryllia base for good thermal conduction Regulation temperature from 40C to 100C Electrically isolated from the case Epoxy sealed Hermetically sealed and military screened units available
Maximum ratings:
Rating Supply Voltage Reverse Voltage Power Dissipation Operating Temperature (Case) Storage Temperature Range Symbol VDD VR PD TMAX/MIN Value 35 -50 35 100/-20 -65 to +150 Unit Vdc Vdc Watts C C
Laser Diode Drivers Micro-heaters
OUTLINE DIMENSIONS
Operating characteristics:
Characteristic Supply Voltage (Pin 1 to Pin 2) Steady State Supply Current @ VDD = +35 Vdc Temperature variation over operating voltage Temperature variation with load
0.018" diameter Cu with Au flash
Symbol VDD IS TV TL TC RC TMAX PD
Min +8 0.015
Max +35 1.0 2 10
Unit Vdc Adc C C C C Watts
Control Temperature Range Control Resistor Value Pin 3 to Pin 4 (See Figure 1) Maximum Control Temperature when Rc = 0 Turn on power at start-up @VDD = +28 Volts
50 0
100 35K 110
25
28
BERYLLIA BASE TWO TIMES ACTUAL SIZE
HY-71 10 Micro-Heater
TYPICAL BASE TEMPERATURE VS CONTROL RESISTOR
SUPPLY CURRENT (AMPS)
MAX START-UP CURRENT VS SUPPLY VOLTAGE
MAX THERMAL POWER AVAILABLE VS SUPPLY VOLTAGE
BASE TEMPERATURE C
CONTROL RESISTOR RC IN K TYPICAL BASE TEMPERATURE LOSS WITH POWER DISSIPATION
TEMPERATURE CHANGE C
SUPPLY VOLTAGE (VOLTS D.C.)
OUTPUT POWER (WATTS)
SUPPLY VOLTAGE (VOLTS D.C.)
HEATER BLOCK DIAGRAM
POWER OUTPUT (WATTS) FROM HY7110
MOUNTING THE HY7110 HEATER
#2-56 mounting screws Electrical pin not shown for clarity Thermal compound between surfaces Do not overtighten the mounting screws. This may result in breaking the ceramic substrate.
NOTES:
1. Optimum heat transfer between the HY7110 and the device being heated occurs when a thermal compound, such as Dow Corning 340, is applied to the mounting surface of the heater. 2. Operation is possible from 100 C to 120C, however electrical performance is not guaranteed. 3. Special environmental and electrical screening is available on request. 4. Special custom engineered micro-heater available on request.
34 * 400 Hot Springs Road, Carson City NV 89706 * (775) 883-0820 * Fax (775) 883-0827 * www.hytek.com

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