Miniature SIP AC-DC Power Supplies

CUI’s PBK ultra-compact SIP AC-DC power supplies maximize board space

Image of CUI Inc's Miniature SIP AC-DC Power SuppliesCUI Inc. launched their smallest AC-DC power supplies yet with the release of the PBK ultra-compact SIP series. Available in 1 W, 3 W, and 5 W families, the modules measure as small as 1.38 x 0.43 x 0.94 in. (35 x 11 x 24 mm), occupying less PCB real-estate than other conventional AC-DC power supplies, therefore allowing designers to fully maximize space where on-board AC-DC power conversion is required.

The high density PBK series is offered in single output voltages of 3.3, 5, 9, 12, 15, and 24 VDC and can operate at AC input voltages between 85~264 VAC. For high voltage DC-DC applications, the modules also provide a DC input range spanning 100~400 VDC. All models are designed for 3,000 VAC/1 Min input to output isolation, have over-current and continuous short-circuit protection, and can function at a wide operating range from -40 to +85°C (1 W and 3 W) and -25 to +85°C (5 W) for use in challenging environments.

The SIP packaged PBK series meets internationally recognized UL 60950-1/EN 60950-1 standards, and complies with EN55022 Class B limits for conducted and radiated EMC with few additional external components. They are ideally suited for a range of applications including automation systems, industrial systems, and telecommunication equipment.


  • Up to 5 W continuous output
  • Compact SIP package
  • Single regulated outputs from 3.3~24 VDC
  • 3,000 VAC isolation
  • Over-current and short-circuit protection
  • CE, UL60950-1 safety approval
  • Wide input voltage: 85~264 VAC / 100~400 VDC


ImageManufacturer Part NumberDescriptionPart StatusNumber of OutputsVoltage - InputAvailable Quantity
PBK-1-5 datasheet linkAC/DC CONVERTER 5V 1WPBK-1-5AC/DC CONVERTER 5V 1WActive185 ~ 264 VAC862 - Immediate
PBK-1-5 product page link
PBK-1-15 datasheet linkAC/DC CONVERTER 15V 1WPBK-1-15AC/DC CONVERTER 15V 1WActive185 ~ 264 VAC142 - Immediate
PBK-1-15 product page link
PBK-1-5-B datasheet linkAC/DC CONVERTER 5V 1WPBK-1-5-BAC/DC CONVERTER 5V 1WActive185 ~ 264 VAC68 - Immediate
PBK-1-5-B product page link
PBK-1-9 datasheet linkAC/DC CONVERTER 9V 1WPBK-1-9AC/DC CONVERTER 9V 1WActive185 ~ 264 VAC38 - Immediate
PBK-1-9 product page link
PBK-1-24 datasheet linkAC/DC CONVERTER 24V 1WPBK-1-24AC/DC CONVERTER 24V 1WActive185 ~ 264 VAC36 - Immediate
PBK-1-24 product page link
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ImageManufacturer Part NumberDescriptionPart StatusNumber of OutputsVoltage - InputAvailable Quantity
PBK-3-15 datasheet linkAC/DC CONVERTER 15V 3WPBK-3-15AC/DC CONVERTER 15V 3WActive185 ~ 264 VAC309 - Immediate
PBK-3-15 product page link
PBK-3-12 datasheet linkAC/DC CONVERTER 12V 3WPBK-3-12AC/DC CONVERTER 12V 3WActive185 ~ 264 VAC254 - Immediate
PBK-3-12 product page link
PBK-3-5 datasheet linkAC/DC CONVERTER 5V 3WPBK-3-5AC/DC CONVERTER 5V 3WActive185 ~ 264 VAC226 - Immediate
PBK-3-5 product page link
PBK-3-9-B datasheet linkAC/DC CONVERTER 9V 3WPBK-3-9-BAC/DC CONVERTER 9V 3WActive185 ~ 264 VAC579 - Immediate
PBK-3-9-B product page link
PBK-3-15-B datasheet linkAC/DC CONVERTER 15V 3WPBK-3-15-BAC/DC CONVERTER 15V 3WActive185 ~ 264 VAC125 - Immediate
PBK-3-15-B product page link
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ImageManufacturer Part NumberDescriptionPart StatusNumber of OutputsVoltage - InputAvailable Quantity
PBK-5-9 datasheet linkAC/DC CONVERTER 9V 5WPBK-5-9AC/DC CONVERTER 9V 5WActive185 ~ 264 VAC178 - Immediate
PBK-5-9 product page link
PBK-5-5 datasheet linkAC/DC CONVERTER 5V 5WPBK-5-5AC/DC CONVERTER 5V 5WActive185 ~ 264 VAC107 - Immediate
PBK-5-5 product page link
PBK-5-5-B datasheet linkAC/DC CONVERTER 5V 5WPBK-5-5-BAC/DC CONVERTER 5V 5WActive185 ~ 264 VAC151 - Immediate
PBK-5-5-B product page link
PBK-5-12 datasheet linkAC/DC CONVERTER 12V 5WPBK-5-12AC/DC CONVERTER 12V 5WActive185 ~ 264 VAC162 - Immediate
PBK-5-12 product page link
PBK-5-24 datasheet linkAC/DC CONVERTER 24V 5WPBK-5-24AC/DC CONVERTER 24V 5WActive185 ~ 264 VAC82 - Immediate
PBK-5-24 product page link
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Published: 2013-09-24