RoHS Compliant Circuit Boards

Our Commitment to Environmental Responsibility

Epec is a leader in Printed Circuit Board solutions and is committed to taking an active role in working closely with our customers and suppliers to identify and rapidly eliminate hazardous substances from their products. As an ISO 9001:2000 registered company, Epec is fully supportive of electronics industry efforts throughout the world to phase out the use of lead and other undesirable elements.

Lead Free & RoHS Compliant Initiative

Epec is a leader in providing an extensive array of lead free printed circuit board solutions. Epec's lead free products are fully RoHS compliant.

RoHS Restricted Materials

Banned Substance RoHS LIMIT: MCV* PPM
Lead (Pb) 1000
Mercury (Hg) 1000
Cadmium (Cd) 100
Hexavalent Chromium (Cr+6) 1000
Polybrominated Biphenyl (PBB) 1000
Polybrominated Diphenyl Ether (PBDE) 1000

* MCV - Maximum concentration values allowed in homogeneous materials

Halogen Free Materials

What are Halogen-free requirements?

  • Bromine must be below 900 PPM by weight
  • Chlorine must be below 900 PPM by weight
  • Combined Bromine + Chlorine must be below 1200 PPM by weight


  • The TBPPA based fire retardant material must be replaced
  • We do offer Halogen-free materials


  • Most soldermasks contain chlorine
  • We do have a limited offering of halogen-free masks

RoHS Compliant Material Identification and Packaging

Epec provides a RoHS Certification of Conformance (C of C) with all shipments. To allow easy identification of all RoHS compliant products and materials, all our packaging has a RoHS/Pb-Free label.

RoHS Compliant Printed Circuit Boards

IPC-1752 RoHS Materials Declaration Standard

Compliance requires that Epec and our suppliers understand the material composition of our products—from FR4 laminate, solder mask, silkscreen, and plating, to surface finish and finished boards. We will provide you with technical documentation and supplier declarations to support your "due diligence." You are expected to provide this documentation upon request of EU regulators.

RoHS Compliant Surface Finish Options

Epec has qualified a wide variety of RoHS compliant surface finish alternatives.

These qualified finishes include:

Surface Finishes Shelf Life Coplanarity Multiple Rework
ENIG 12+ Months Yes Yes
Immersion Silver *6-9 Months Yes Limited
Lead Free HASL 12 Months Moderate Yes
OSP 6-12 Months Yes No
Immersion Tin 3 Months Yes Limited

*With proper packaging and storage conditions

Higher Lead-free Assembly Temperature

  • Low thermal mass assembly reflow @ 240 –245C
  • Higher thermal mass assembly reflow @ 260C
  • Lead-free PCB temperature is 30C higher than SnPb process
  • Up to 6 soldering/rework cycles may be required

Reflow Temperature Profile Comparison

Pb-Free Compatible FR4 Materials

Pb-Free Compatible FR4 Materials

Lead Free Process Compatible Material Solutions

The assembly of lead free products requires the use of material that will not break down at higher processing temperatures. To better facilitate the industry transition to lead free PCBs, Epec offers the following broad assortment of standard, off-the-shelf, lead free FR4 substrates:

RoHS Capable Substrate Materials

Product Resin Matrix Td, °C Tg, °C T-288 Minutes CTE Z-Axis Dk @ 2GHz Df @ 2GHz
Standard Electrical Performance
Isola IS410 Phenolic epoxy 350 180 >15 3.50% 4.2-4.7 .018-.021
Iteq IT-180TC Phenolic epoxy 385 180 >10 3.00% 4.2-4.7 .018-.021
Polyclad 370HR Phenolic epoxy 350 180 pass 2.70% 4.4-4.7 .018-.021
High Electrical Performance (Low Loss)
Isola FR415 Non-phenolic/non-dicey 370 190 >20 2.90% 3.80-3.90 .016-.017
Isola FR408 Modified epoxy 360 180 >15 3.50% 3.55-3.6 .011-.0125
Polyclad Getek Polyphenylene oxide 345 175 pass 3.80% 3.5-3.7 .009-.011
High Electrical Performance (Ultra Low Loss)
Rogers RO4350 Hydrocarbon ceramic 395 300 >180 <3.0 3.48 0.004
Isola IS620 Low Dk/Df 353 215 >15 2.80% 3.55-3.6 0.008
Polyclad 621 Polyphenylene ether 400 210 pass 3.00% 3.3-3.55 .0045-.007
Nelco-13SI Enhanced epoxy 365 210 pass 3.50% 3.3-3.4 .007-.008

*With proper packaging and storage conditions. The principle performance criteria for lead free processing capability is Td (decomposition temperature) >340°C.

For additional information visit Epec's PCB RoHS FAQ page.

America's Oldest, A History of Innovation.  Learn More →
Our History

As the oldest production Printed Circuit Board Company in North America, perhaps in the world, the 60-year plus story of Epec is connected to the development of the PCB and the electronics industry.

See our history timeline →

  • Epec Founded in 1952
  • IPC Founded in 1957
  • Epec Builds PCB for Apollo 11