AC/DC Power Supplies

Cosel PBB7A-D SERIES AC/DC Power Supply

The Cosel PBB7A-D Series AC/DC Power Supply is a compact and reliable solution designed for PCB-mounted applications. With power outputs of 10W and voltage options of 5V, 12V, and 24V, this series ensures consistent and efficient performance across a range of industrial, medical, and IT systems. Key features include a wide input voltage range (8...

Key features include a wide input voltage range (85–264VAC or 120–370VDC) for flexible deployment and efficiency ratings of up to 87% to reduce energy consumption. Its lightweight design, measuring just 33 x 15 x 22 mm and weighing only 25g, is perfect for compact installations. The PBB7A-D Series operates reliably in temperatures from -40°C to +85°C (with derating) and includes safety features such as overcurrent and overvoltage protection. Compliance with UL60950-1, C-UL, and EN60950-1 standards ensures dependable operation, while noise compliance to FCC-B, VCCI-B, and CISPR-B minimises interference.

This RoHS and ErP-compliant power supply is backed by a 5-year manufacturer’s warranty, making it an eco-friendly and durable choice for a wide range of applications. Whether for industrial automation, medical equipment, or sensitive electronics, the PBB7A-D Series delivers performance you can trust.

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Features

10W AC/DC Module
PCB Mounting
Small Footprint
ErP compliant
Meets Class II
High efficiency
Wide operating temperature -40 to 85C

Specifications

INPUT
Input voltage	85–264Vac
Input current	200Vac: 0.14A typ (lo=100%)
Frequency	47– 63Hz
Inrush current	Limited by external components
Leakage current	0.40/0.75mA max. (ACIN 100V/240V, 60Hz, lo=100%, according to IEC60950-1)

OUTPUT
Output Voltage	5Vdc, 12Vdc, 24Vdc
Power	10W
Output Current	See selection table
Line regulation	5V: 20mV max 12V: 48mV max 24V: 96mV max
Load regulation	5V: 40mV max 12V: 100mV max 24V: 150mV max
Ripple	For 30% - 100% load 5V: 120mV max 12V: 160mV max 24V: 200mV max
Temperature Regulation	For 0 to +85°C 5V: 100mV max 12V: 180mV max 24V: 360mV max
Efficiency	85% typical

PROTECTION
Overcurrent Protection	Works over 105% of rating and recover automatically
Overvoltage Protection	5V: 5.50 - 8.00V 12V: 13.20 - 19.20V 24V: 26.40 - 38.40V

PROTECTION

Overcurrent Protection

Works over 105% of rating and recover automatically

Overvoltage Protection

5V: 5.50 - 8.00V

12V: 13.20 - 19.20V

24V: 26.40 - 38.40V

ENVIRONMENTAL
Operating temperature	-40 to +85°C (some derating required, ask sales office)
Humidity	20%-95%RH non condensing
Altitude	3,000m (10,000 feet) max
Cooling	Convection/forced air

STANDARDS AND APPROVALS
General	UL60950-1, C-UL (CSA60950-1), EN60950-1
Conducted Noise	FCC-B,VCCI-B,CISPR-B,EN55022-B
Harmonic Attenuator	IEC61000-3-2 (Class A)

MECHANICAL
Dimensions	33 x 15 x 22mm
Weight	25g

Selection Table

MODEL NUMBER	OUTPUT VOLTAGE	OUTPUT CURRENT	POWER
PBB7A-5D	5V	2A	10W
PBB7A-12D	12V	0.9A	10W
PBB7A-24D	24V	0.45A	10W

Technical Drawings

Schematic drawing with dimensions of an electronic component.

Electrical component diagram with pin labels.

Downloads

PBB7A-D.pdf

Warranty & Returns

Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.

FAQs

What is the Cosel PBB7A-D Series and what are its key specifications?

The PBB7A-D is a 10W PCB-mounted AC/DC power module from Cosel's PBB7A family — the mid-range variant between the 5W PBB7A-C and 25W PBB7A-G. Available in 5Vdc, 12Vdc, and 24Vdc output models, it accepts 85–264Vac (or 120–370Vdc) input and operates from -40°C to +85°C. Dimensions are 28.7×12.7×17.5mm at 15g — the same compact footprint as the 3W and 5W variants.

What distinguishes the PBB7A-D from the PBB7A-B, PBB7A-C, and PBB7A-G?

Each PBB7A suffix letter indicates a different output voltage or power rating within the same compact PCB-mount platform. Contact Powerbox to match the correct variant to your output voltage and power requirement.

What environments is the PBB7A-D designed for?

OEM industrial and embedded applications requiring a compact, reliable AC/DC power source mounted directly on a PCB, with wide mains input compatibility.

What input voltage does the PBB7A-D accept, and is DC input supported?

The PBB7A-D accepts 85–264Vac (47–63Hz) universal AC input with no manual switching, plus 120–370Vdc bus input — consistent with the entire PBB7A family. Class II construction means no protective earth (PE) terminal or chassis ground connection is required.

What certifications does the PBB7A-D carry?

Safety: UL60950-1, C-UL (CSA60950-1), EN60950-1. EMC: FCC Part 15 Class B, VCCI Class B, CISPR22 Class B, EN55022 Class B. RoHS and ErP compliant. Complies with IEC61000-3-2 harmonic current standards. 5-year Cosel manufacturer's warranty. The Class II approval confirms no PE wiring is required.

How do I select the right PBB7A variant?

Key selection parameters are output voltage and output power. Contact Powerbox with your required output voltage, power (watts), and any specific certifications needed, and the team will recommend the correct PBB7A variant.

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