USB socket_MICRO USB mother seat_patch USB interface_hro _U-F-M5DD-Y-L
  • USB socket_MICRO USB mother seat_patch USB interface_hro _U-F-M5DD-Y-L

Tel: 400-633-8600


7.59 × 5.6 × 3.0mm Horizontal 4P Fixed Pin (Surface Mount) Micro USB Socket


Rated load: DC 30V  1A
Contact resistance: ≤ 30mΩ
Insulation impedance: AC 100V ≥100mΩ
Resistance to welding temperature: 250±5°5s
Service life: 10,000 cycles
Use temperature: -20 ℃ to 70 ℃
Use humidity: ≤ 85% RH
Insertion and extraction strength: 3-20N
Application areas: Computer peripherals, audio and video, digital, portable equipment, communication products, etc.





As a global brand of high quality switch socket solutions, hro is committed to playing an active role in protecting the environment. And through ISO9001, ISO14001With an environmental management system that complies with government regulations, international standards and customer requirements, we are committed to developing and maintaining controllable business, design and manufacturing processes to actively serve our global customer base.


Environmental Directive:

RoHS compliant
We offer hro brand products that meet the requirements of the EU Directive 2002/95/EC on the prohibition of the use of certain hazardous substances in electrical and electronic equipment (also known as the "RoHS Directive").



Compliance with EU REACH Regulation (EC) No. 1907/2006

  • The latest SVHC candidate list published by the European Chemicals Agency: January 2023 (233)
  • Statement of SVHC Candidate List Updated to: January 2021 (211)
  • Does not contain REACH SVHC

Meets halogen content standards

  • Non-Low Halogen-Contains Br or Cl > 900 ppm.

Quality related documents
hro has a rich library of programs that manage our environmental compliance programs. For specific information, please contact our quality engineer. In addition, hro requires its parts and materials suppliers to provide the company's declaration form to ensure that their products also comply with the RoHS directive.


  • RoHS FAQ (March 2007)
  • hro RoHS Device Numbering Scheme
  • Strategies to reduce the tin whisker phenomenon

Customer Responsibility

When hro products are used in the finished product, there is no guarantee that the customer's other components included in the finished product will comply with the various RoHS directives. In any case, the customer shall remain responsible for ensuring that the other components purchased by the customer comply with all the requirements of the RoHS directive, including but not limited:

  • Verify the compatibility of its material information with the welding process
  • check the logo, date code and box labels of all hro products
  • Inventory management and other product certifications in customer applications



Preheat temperature
Preheating temperature

110ºC max (Embilomental temperature of soldering surface of P. W. E)
110°C or less (temperature around the solder surface of the printed substrate)

Preheat time
Preheating time

60 sec, max
Within 60 seconds

Area of flux
Area of flux

1/2 max of P. W. B. thickness
Within 1/2 of the thickness of the printed substrate

Temperature of solder
Solder temperature

250ºC max
Less than 250 °C

Time of immersion
dip welding time

Within 5 sec
Within 5 seconds

Soldering number
Dip welding times

Within 2 times (But should bring down heat of the first soldering)
Within 2 times (but the temperature of the first solder should be lowered)

Printed wiring board
printed substrate

Single sided copper-clad laminates
single-sided copper foil

(1) After switches were soldered, please be careful not to clean switches with solvent
After the switch is dip-soldered, be careful not to clean it with solvent.
(2) In the case of using soldering iron, soldering conditions shall be 350ºC max and 3 sec. max
In the case of using ferrochrome, the solder temperature should be below 350°C, within 3 seconds.
(3) Right after switches were soldered; please be careful not to load on the knobs of switches.
After dip welding, be careful not to apply a load on the top.
3. 2 Design instructions(Matters needing attention in design)
(1) Follow recommended P. W. B. piercing plan in outside drawing page. Refer to the product drawing for the mounting hole size of the printed substrate.
(2) Design key top as fig. Design inclination of key top 4 deg. max as fig. (Recommended operating condition.)
The keystroke design is shown in the figure, and the keystroke inclination is within 4 degrees. (See operating conditions).
3.3 Note(Attention point)
(1) Please be cautious not to give excessive static load or shock to switches.
Be careful not to apply excessive pressure or shake the switch.
(2) Please be careful not to pile up P. W. B. after switches were soldered.
After the switch is soldered, be careful not to stack the printed substrates.
(3) Preservation under high temperature and high humidity or corrosive gas should be avoided
especially. When you need to preserve for a long period, do not open the carton.
In particular, care should be taken to avoid high humidity and high temperature and corrosive gas environment. If you need to store for a long time, please do not open the box.
3.4 Note(AttentionPoint)
Due to the possibility of modification and change of products, customers should check or trial production in small batches after receiving the goods, and batch production can only be carried out after confirmation.