For more information, please visit the product page. ddaattee 12/04/2017 ppaaggee 11 ooff 77 SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER FEATURES • 1 W isolated output • smaller package • single/dual unregulated output • 3,000 Vdc isolation • short circuit protection • extended temperature range (-40~105°C) • antistatic protection up to 8kV • UL 60950-1 approval • high efficiency at light load • efficiency up to 81% MODEL input output output output ripple efficiency voltage voltage current power and noise2 typ range min max max typ typ (Vdc) (Vdc) (Vdc) (mA) (mA) (W) (mVp-p) (%) PEM1-S3-S3-S 3.3 2.97~3.63 3.3 30 303 1 60 73 PEM1-S3-S5-S 3.3 2.97~3.63 5 20 200 1 60 78 PEM1-S5-S3-S 5 4.5~5.5 3.3 30 303 1 60 73 PEM1-S5-S5-S1 5 4.5~5.5 5 20 200 1 60 80 PEM1-S5-S12-S1 5 4.5~5.5 12 9 83 1 60 80 PEM1-S5-S15-S1 5 4.5~5.5 15 7 67 1 60 81 PEM1-S5-S24-S1 5 4.5~5.5 24 5 42 1 60 81 PEM1-S5-D3-S 5 4.5~5.5 ±3.3 ±15 ±152 1 60 73 PEM1-S5-D5-S1 5 4.5~5.5 ±5 ±10 ±100 1 60 80 PEM1-S5-D12-S1 5 4.5~5.5 ±12 ±5 ±42 1 60 80 PEM1-S5-D15-S1 5 4.5~5.5 ±15 ±4 ±33 1 60 81 PEM1-S5-D24-S1 5 4.5~5.5 ±24 ±2 ±21 1 60 81 PEM1-S12-S3-S 12 10.8~13.2 3.3 30 303 1 60 75 PEM1-S12-S5-S1 12 10.8~13.2 5 20 200 1 60 80 PEM1-S12-S12-S1 12 10.8~13.2 12 9 83 1 60 80 PEM1-S12-S15-S1 12 10.8~13.2 15 7 67 1 60 81 PEM1-S12-D3-S 12 10.8~13.2 ±3.3 ±15 ±152 1 60 74 PEM1-S12-D5-S1 12 10.8~13.2 ±5 ±10 ±100 1 60 80 PEM1-S12-D12-S1 12 10.8~13.2 ±12 ±5 ±42 1 60 81 PEM1-S12-D15-S1 12 10.8~13.2 ±15 ±4 ±33 1 60 81 PEM1-S15-S5-S 15 13.5~16.5 5 20 200 1 60 80 PEM1-S15-S12-S 15 13.5~16.5 12 9 83 1 60 80 PEM1-S15-S15-S 15 13.5~16.5 15 7 67 1 60 81 PEM1-S15-D5-S 15 13.5~16.5 ±5 ±10 ±100 1 60 80 PEM1-S15-D15-S 15 13.5~16.5 ±15 ±4 ±33 1 60 81 PEM1-S24-S3-S 24 21.6~26.4 3.3 30 303 1 60 75 PEM1-S24-S5-S1 24 21.6~26.4 5 20 200 1 60 79 Notes: 1. UL approved 2. Ripple and noise are measured at 20 MHz BW by “parallel cable” method with 1 μF ceramic and 10 μF electrolytic capacitors on the output. c u i . c o m

For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 12/04/2017 │ page 2 of 7 MODEL input output output output ripple efficiency voltage voltage current power and noise2 (CONTINUED) typ range min max max typ typ (Vdc) (Vdc) (Vdc) (mA) (mA) (W) (mVp-p) (%) PEM1-S24-S12-S1 24 21.6~26.4 12 9 83 1 60 81 PEM1-S24-S15-S1 24 21.6~26.4 15 7 67 1 60 81 PEM1-S24-S24-S1 24 21.6~26.4 24 5 42 1 60 81 PEM1-S24-D3-S 24 21.6~26.4 ±3.3 ±15 ±152 1 60 73 PEM1-S24-D5-S1 24 21.6~26.4 ±5 ±10 ±100 1 60 80 PEM1-S24-D12-S1 24 21.6~26.4 ±12 ±5 ±42 1 60 81 PEM1-S24-D15-S1 24 21.6~26.4 ±15 ±4 ±33 1 60 79 PEM1-S24-D24-S1 24 21.6~26.4 ±24 ±2 ±21 1 60 80 Notes: 1. UL approved 2. Ripple and noise are measured at 20 MHz BW by “parallel cable” method with 1 μF ceramic and 10 μF electrolytic capacitors on the output. PART NUMBER KEY PEM1 - SXX - XXX -S Output Base Number Packaging Style Input Voltage S = single Output Voltage SIP D = dual INPUT parameter conditions/description min typ max units 3.3 Vdc input models 2.97 3.3 3.63 Vdc 5 Vdc input models 4.5 5 5.5 Vdc operating input voltage 12 Vdc input models 10.8 12 13.2 Vdc 15 Vdc input models 13.5 15 16.5 Vdc 24 Vdc input models 21.6 24 26.4 Vdc for maximum of 1 second 3.3 Vdc input models -0.7 5 Vdc 5 Vdc input models -0.7 9 Vdc surge voltage 12 Vdc input models -0.7 18 Vdc 15 Vdc input models -0.7 21 Vdc 24 Vdc input models -0.7 30 Vdc filter capacitance filter OUTPUT parameter conditions/description min typ max units for Vin change of 1% line regulation 3.3 Vdc output models ±1.5 % all other models ±1.2 % measure from 10% load to full load 3.3 Vdc input models 18 % 5 Vdc input models 12 % load regulation 12 Vdc input models 8 % 15 Vdc input models 7 % 24 Vdc input models 6 % voltage accuracy see tolerance envelope curve voltage balance dual output, balanced loads ±0.5 ±1 % switching frequency at full load, nominal input voltage 100 kHz temperature coefficient at full load ±0.03 %/°C c u i . c o m

For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 12/04/2017 │ page 3 of 7 PROTECTIONS parameter conditions/description min typ max units short circuit protection1 1 s Note: 1. The supply voltage must be discontinued at the end of the short circuit duration. SAFETY AND COMPLIANCE parameter conditions/description min typ max units input to output for 1 minute, 1 mA max. leakage isolation voltage 3,000 Vdc current isolation resistance input to output at 500 Vdc 1,000 MΩ isolation capacitance input to output, 100KHz, 0.1V 20 pF safety approvals2 UL 60950-1 conducted emissions CISPR22/EN55022, class B (external circuit required, see Figure 1) radiated emissions CISPR22/EN55022, class B (external circuit required, see Figure 1) IEC/EN61000-4-2, class B, contact ± 8kV for single outputs ESD IEC/EN61000-4-2, class B, contact ± 6kV for dual outputs MTBF as per MIL-HDBK-217F @ 25°C 3,500,000 hours RoHS 2011/65/EU Note: 2. See specific models noted on pages 1 & 2. ENVIRONMENTAL parameter conditions/description min typ max units operating temperature see derating curve -40 105 °C storage temperature -55 125 °C storage humidity non-condensing 95 % temperature rise at Ta = 25°C 25 °C SOLDERABILITY parameter conditions/description min typ max units hand soldering 1.5 mm from case for 10 seconds 300 °C wave soldering3 see wave soldering profile 260 °C Notes: 3. Preheat conditions: At 120°C for over 1 minute. Peak Temp. 260°C Max. 250 250 Wave Soldering Time 4 Sec. Max. 200 200 ) C ure (°150 >60 seconds e (°C)150 10 Sec. Max. at120 ur er at mp100 per100 e m T e T 50 50 0 0 Time (sec.) Time (sec.) Preheat Profile Wave Soldering Profile c u i . c o m

For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 12/04/2017 │ page 4 of 7 MECHANICAL parameter conditions/description min typ max units dimensions 19.50 x 6.00 x 9.30 (0.768 x 0.236 x 0.366 inch) mm case material epoxy resin (UL94-V0) weight 2.4 g MECHANICAL DRAWING units: mm[inch] tolerance: ±0.25[±0.010] pin section tolerance: ±0.10[±0.004] PIN CONNECTIONS PIN Single Output Dual Output 1 Vin Vin 2 GND GND 5 0V -Vo 6 No Pin 0V 7 +Vo +Vo c u i . c o m

For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 12/04/2017 │ page 5 of 7 DERATING CURVES Tolerance Envelope Curve Tolerance Envelope Curve Tolerance (E3n.v3e Vlodpce oCuutrpvuet (o3n.l3y )Vdc) Tolera (naclel oEtnhveer lompoed Ceulsr)v e (all other models) %) 10 %) 10 %) 10 %) 15 Output Voltage Accuracy (-550 Output Voltage Accuracy (Ty--11-p50505ical LToyapdi cLainl LeoaMMdi anLxine R-1-7a1..055ted OR1--ua71.0t.5t5peudt O Vuotlptaugt eVoltage Output Voltage Accuracy ( 50 Output Voltage Accuracy (-11--55000 TypTiycpailc aLol aLMModiaa nxLdin Leine --R272.a..555ted Output Voltage R--a227...t555ed Output Voltage 10 20 30 40 10 5200 6400 6700 8800 19000 100 10 1200 2030 4040 60 50 80 60100 70 80 90 100 Output COuurrtepnutt PCeurrcreenntta gPeer (c%en)tage (%) Output CuOrurtepnutt P Ceurcrreenntta gPee r(c%en)tage (%) (Nomina(lN Ionmpuinta Vl oIlntapguet )Voltage) (Nominal (INnopmutin Vaol lItnapguet) Voltage) Temperature Derating Curve 100 %) 80 d ( 60 oa Safe operating area L 40 20 -40 -20 0 20 40 60 85 105 120 Ambient Temperature (°C) EMC RECOMMENDED CIRCUIT Figure 1 Table 1 Recommended external circuit components LDM Vin Vin +Vo Vin C1 LDM (Vdc) DC/DC LOAD 3.3 4.7μF/50V 6.8μH C1 Cout 5 4.7μF/50V 6.8μH GND GND -Vo 12 4.7μF/50V 6.8μH (0V) 15 4.7μF/50V 6.8μH 24 4.7μF/50V 6.8μH Note: 1. See Table 3 for Cout values. TEST CONFIGURATION Figure 2 Table 2 Oscilloscope External components Lin Lin 4.7μH 220μF, ESR < 1.0Ω Current Cin Cin Probe DC DC Load at 100 kHz Note: Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance. c u i . c o m

For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 12/04/2017 │ page 6 of 7 APPLICATION NOTES 1. Output load requirement To ensure this module can operate efficiently and reliably, the minimum output load may not be less than 10% of the full load during operation. If the actual output power is low, connect a resistor at the output end in parallel to increase the load. 2. Overload Protection Under normal operating conditions, the output circuit of this product has no protection against overload. The simplest method to add this is to add a circuit breaker to the circuit. 3. Recommended circuit If you want to further decrease the input/output ripple, you can increase the capacitance accordingly or choose capacitors with low ESR (see Figure 3 & Table 3). However, the capacitance of the output filter capacitor must be appropriate. If the capacitance is too high, a startup problem might arise. For every channel of the output, to ensure safe and reliable operation, the maximum capacitance must be less than the maximum capacitive load (see Table 4). Figure 3 Single Output Dual Output +Vo +Vo Vin Vin Cout Cin DC DC Cout Cin DC DC 0V Cout GND GND 0V -Vo Table 3 Table 4 Vi n Cin Single Vo Cout Dual Vo Cout Single Vout Max. Capacitive Load Dual Vout Max. Capacitive Load1 (Vd c) (µF) (Vdc) (µF) (Vdc) (µF) (Vdc) (μF) (Vdc) (μF) 3. 3 4.7 3.3 10 ±3.3 4.7 3.3 220 3.3 100 5 4.7 5 10 ±5 4.7 5 220 5 100 12 2.2 12 2.2 ±12 1 12 220 12 100 15 2.2 15 1 ±15 0.47 15 220 15 100 24 1 24 1 ±24 0.47 24 220 24 100 Note: It’s not recommended to connect any external capacitors in Note: 1. For each output. applications with less than 0.5 watt output. Note: 1. Operation under minimum load will not damage the converter; however, they may not meet all specifications listed. 2. Max. capacitive load tested at input voltage range and full load. 3. It is recommended to use either ceramic capacitors or electrolytic capacitors on the input and the output. Using tantalum capacitors may increase the risk of failure. 4. All specifications measured at: Ta=25°C, humidity<75%, nominal input voltage and rated output load, unless otherwise specified. c u i . c o m

For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 12/04/2017 │ page 7 of 7 REVISION HISTORY rev. description date 1.0 initial release 03/19/2013 1.01 added model PEM1-S15-S12-S 07/29/2013 1.02 added new models 02/14/2014 1.03 added UL approval to some models 09/16/2014 1.04 added UL approval to some models 01/14/2015 1.05 updated tolerance envelope curves 02/10/2016 added wave soldering preheat conditions, updated emc 1.06 12/04/2017 recommendations The revision history provided is for informational purposes only and is believed to be accurate. Headquarters 20050 SW 112th Ave. Fax 503.612.2383 Tualatin, OR 97062 cui.com 800.275.4899 techsupport@cui.com CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website. CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.