20 Watts xppower.com JTM Series Wide 4:1 Input Range Single & Dual Outputs -40 C to +105 C Operating Temperature Overvoltage & Overcurrent Protection Remote On/Off 1600 VDC Isolation 3 Year Warranty Specification Input General Input Voltage Range 24 V (9-36 VDC) Efficiency See table 48 V (18-75 VDC) Isolation 1600 VDC Input to Output Input Current See table 1600 VDC Input to Case 1600 VDC Output to Case Undervoltage Lockout 24 V models: ON 8.6 V, OFF 7.9 V typical 48 V models: ON 17.8 V, OFF 16 V typical Switching Frequency 330 kHz typical 3 Input Surge 24 V models 50 VDC for 100 ms Power Density 25 W/in 48 V models 100 VDC for 100 ms MTBF 560 kHrs min to MIL-HDBK-217F at 25 C, GB Output Environmental Output Voltage See table Output Voltage Trim 10%, single outputs Operating Temperature -40 C to +105 C, see derating curve Minimum Load No minimum load required Case Temperature +105 C max Line Regulation 0.5% max Cooling Convection-cooled Load Regulation Single output models: 0.5% max Operating Humidity 5-95% RH, non-condensing Dual output models: 1% max Storage Temperature -40 C to +125 C balanced outputs Cross Regulation 5% for dual outputs (see note 2) EMC & Safety Setpoint Accuracy 1% Emissions EN55022, class A conducted & radiated Start Up Time 20 ms typical with external components - see Ripple & Noise 75 mV pk-pk at 20 MHz bandwidth, application notes (see note 3) ESD Immunity EN61000-4-2, level 3 Perf Criteria A Transient Response 3% max deviation, recovery to within Radiated Immunity EN61000-4-3 10 V/m, Perf Criteria A 1% in <250 s for a 25% load change EFT/Burst EN61000-4-4 level 3, Perf Criteria B* Temperature 0.02%/C Surge EN61000-4-5 level 2, Perf Criteria B* Coefficient Conducted Immunity EN61000-4-6 10 V/rms,Perf Criteria A Overvoltage Protection 3.3 V models: 3.9 V typical Magnetic Field EN61000-4-8 1 A/m, Perf Criteria A 5 V models: 6.2 V typical 12 V models: 15 V typical 15 V models: 18 V typical Safety 5 V models: 6.2 V typical 12 V models: 15 V typical Safety Approvals CE (Meets all applicable directives), 15 V models: 18 V typical UKCA (Meets all applicable legislation) Overload Protection >120% of full load typical Short Circuit Protection Trip & restart (hiccup mode), auto recovery Remote On/Off On = Logic High (3.0-12.0 V) or Open *External input capacitor required 220 F/100 V Off = Logic Low (<1.2 V) or short pin 2 to 6 (see note 4) DC-DCDC-DC JTM20 Models and Ratings (1) Input Current Maximum Input Voltage Output Voltage Output Current Efficiency Model Number Capacitive Load No Load Full Load 3.3 VDC 5.500 A 50 mA 879 mA 10,000 F 89% JTM2024S3V3 5.0 VDC 4.000 A 50 mA 957 mA 6,800 F 91% JTM2024S05 12.0 VDC 1.670 A 22 mA 980 mA 1,000 F 89% JTM2024S12 9-36 VDC 15.0 VDC 1.330 A 22 mA 968 mA 680 F 89% JTM2024S15 5.0 VDC 2.000 A 65 mA 969 mA 2,200 F 89% JTM2024D05 12.0 VDC 0.835 A 25 mA 980 mA 470 F 88% JTM2024D12 15.0 VDC 0.665 A 25 mA 980 mA 330 F 89% JTM2024D15 3.3 VDC 5.500 A 30 mA 440 mA 10,000 F 89% JTM2048S3V3 5.0 VDC 4.000 A 30 mA 473 mA 6,800 F 91% JTM2048S05 12.0 VDC 1.670 A 15 mA 484 mA 1,000 F 89% JTM2048S12 18-75 VDC 15.0 VDC 1.330 A 15 mA 484 mA 680 F 89% JTM2048S15 5.0 VDC 2.000 A 40 mA 484 mA 2,200 F 89% JTM2048D05 12.0 VDC 0.835 A 15 mA 490 mA 470 F 88% JTM2048D12 15.0 VDC 0.665 A 15 mA 490 mA 330 F 89% JTM2048D15 Notes 1. Input current specified at nominal 24 V or 48 V input. 2. Cross regulation is 5% when one output is at 100% and the other is varied between 25% and 100%. 3. Measured with 1 F ceramic capacitor across output rails. 4. Non-standard versions can have Remote On/Off function and pin removed. Contact sales for details. 5. For heatsink option add -HK to the end of the part number. Mechanical Details Optional heatsink (-HK) 1.00 0.10 0.40 0.40 0.10 0.40 0.64 Pin Connections (25.4) (2.5) (10.1) (10.1) (2.5) (10.1) (16.3) Pin Single Dual 1 +Vin +Vin 0.60 DIA. 2 -Vin -Vin 0.04 0.02 (15.2) (1.0) (0.5) 3 +Vout +Vout 4 Trim Com 34 5 5 -Vout -Vout 2.00 2.00 0.80 Bottom View 6 Remote On/Off Remote On/Off (50.8) (20.3) (50.8) 12 6 Notes 0.60 1. All dimensions are in inches (mm). (15.2) 2. Weight: 0.07 lbs (30 g) 3. Pin diameter: 0.04 0.002 (1.0 0.05) 4. Pin pitch tolerance: 0.014 (0.35) 0.40 0.40 0.20 0.20 Thermal Pad (10.1) (5.1) (10.1) (5.1) 5. Case tolerance: 0.02 (0.5) min 6. Stand-off tolerance: 0.004 (0.1) Application Notes Derating Curve External Output Trim 100 4 3 Output can be externally trimmed using without heat-sink this method. 80 with heat-sink TRIM UP TRIM DOWN Contact sales for details. 60 5 4 S.O.A. 40 20 Input Filter 0 -40 0 66 72 85 105 Ambient Temperature (C) +Vin +Vout + 12 H Remote On/Off Control DC/DC 2.2 F 2.2 F LOAD Converter Standard ROF logic is positive. Output On 3.0-12.0 VDC or open circuit -Vin -Vout Output Off <1.2 VDC or short circuit pins 2 & 6 - 06 Oct 2021 Load (%)