Doosan PCB RoHS compliance guide: which products are halogen-free, what certificates to download, REACH status, and how to build your compliance document trail.

If you’re specifying a laminate supplier for a product that ships into Europe, you already know the first question procurement is going to ask: “Is this material RoHS compliant?” For engineers working with Doosan copper clad laminates, the short answer is yes — but the full picture is worth understanding before you sign off on a BOM or write your compliance documentation.

This guide covers Doosan PCB RoHS compliance from the ground up: what the directive actually requires, how Doosan’s product lines meet those requirements, what halogen-free means in practice, and what documentation your fabricator and compliance team will expect you to produce.

What RoHS Compliance Actually Means for PCB Laminate

RoHS stands for “Restriction of Hazardous Substances” and originated as a European Union directive known as Directive 2002/95/EC, adopted in February 2003. The motivation was to address health and environmental concerns around substances like lead, mercury, cadmium, and other heavy metals found in electronics.

The current version, RoHS 3 (Directive 2015/863), added four more phthalates — BBP, DBP, DEHP, and DIBP — to the original restricted substances list. That gives us ten total restricted substances that any PCB laminate destined for EU-market products must address.

The maximum permitted concentrations in non-exempt products are 0.1% or 1000 ppm (except for cadmium, which is limited to 0.01% or 100 ppm) by weight in each homogeneous material.

For a laminate manufacturer like Doosan, this means the resin system, glass reinforcement, copper foil, and any surface treatments must all independently meet these thresholds. It’s not a board-level average — it’s material by material.

Doosan PCB RoHS Compliance: The Direct Answer

Doosan products comply with RoHS directive requirements and REACH regulation. Their halogen-free product lines meet IEC 61249-2-21 requirements with bromine content below 900 ppm and chlorine below 900 ppm.

Every current Doosan CCL product page on the Doosan Electro-Materials website includes a downloadable RoHS certificate and MSDS sheet as standard. Whether you’re looking at the DS-7409 series for high-speed digital, the DS-7409HG family for IC substrate applications, or the ILD PTFE-based series for mmWave RF, RoHS documentation is available at the product level.

What’s worth noting is that Doosan doesn’t treat RoHS compliance as a single checkbox. Their product lineup is structured into two environmental tiers that engineers should understand clearly.

Tier 1: RoHS-Compliant (Standard Halogenated)

This covers products that meet all ten RoHS restricted substance limits, including limits on specific brominated flame retardants like PBB and PBDE. However, these products may still use TBBPA (tetrabromobisphenol A) as a flame retardant — currently still permitted under RoHS, though regulators were expected to add TBBPA to the restricted substances list as of 2023, though this has been delayed as of mid-2024. Engineers specifying these materials for long product lifecycles should flag this as a watch item.

Tier 2: RoHS-Compliant + Halogen-Free

This is where Doosan’s “HG” suffix products sit. The DS-7409HG series is halogen, antimony, and red phosphorus free, and is designed for IC package substrate applications including NAND Flash memory. The halogen-free designation goes beyond basic RoHS — it eliminates chlorine and bromine flame chemistry entirely, replacing it with phosphorus-nitrogen or inorganic alternatives.

A halogen-free PCB is defined by IEC 61249-2-21 as having bromine and chlorine content each below 900 ppm, with total halogens under 1500 ppm. This applies to the entire board, including laminate, prepreg, and solder mask.

Doosan Product Lines and Their Compliance Status

Product Series	Application	Halogen-Free	RoHS Cert Available	Key Feature
DS-7409DV	Network switches, servers	No (RoHS ✓)	Yes	Low-loss, standard HF-free
DS-7409DV(N)	400G routers, computing	No (RoHS ✓)	Yes	Ultra-low loss
DS-7409DQN	800G backplane, 5G base station	Yes (HF + RoHS ✓)	Yes	Super ultra-low loss, halogen-free
DS-7409HG(I)	IC Package – NAND Flash	Yes (HF + RoHS ✓)	Yes	Low CTE, High Tg
DS-7409HG(ZL)	IC Package – Mobile DRAM	Yes (HF + RoHS ✓)	Yes	High modulus
DS-7409HG(KN)	IC Package – 5G AiP	Yes (HF + RoHS ✓)	Yes	Low Dk/Df
DS-7409HG(IQ)	FC BGA – Non-Memory	Yes (HF + RoHS ✓)	Yes	Mechanical drill compatible
ILD Series	mmWave, automotive radar, 5G/6G	Yes (HF + RoHS ✓)	Yes	PTFE-based ultra-low loss

For engineers designing Doosan PCB material into a new product, the table above maps compliance tier directly to application, which is exactly how a fabricator or compliance auditor will want to see it structured.

RoHS vs. Halogen-Free: Why the Distinction Matters in Practice

This is a point that trips up a lot of engineers at the BOM review stage. RoHS compliance and halogen-free status are related but not identical.

RoHS directives prohibit the use of specific types of brominated flame retardants — PBB and PBDE specifically — but not all brominated compounds are restricted. TBBPA, the most common flame retardant in standard FR-4, is still permitted under current RoHS rules. A product can be 100% RoHS compliant while still containing bromine.

Halogen-free materials go further: they eliminate bromine and chlorine from the entire formulation. In fire scenarios, halogen-free boards produce far less toxic smoke and corrosive gases — independent tests show smoke density reduced by 50–70% compared to halogenated materials. For data centers, aerospace, rail, and medical applications, this performance difference is often a contractual or safety-standard requirement, not just a regulatory one.

What Documentation Doosan PCB RoHS Compliance Requires

All materials used for a PCB must be traceable to meet regulatory requirements. Documentation during manufacturing is crucial to establish records that all materials are RoHS compliant and have not been liable to cross-contamination.

For a Doosan-based design, your compliance package should include:

Document	Source	Purpose
Doosan RoHS Certificate	Doosan product page download	Declares per-product restricted substance limits
MSDS (Material Safety Data Sheet)	Doosan product page download	Substance declaration for procurement audit
IEC 61249-2-21 Compliance Statement	Doosan (for HG series)	Halogen-free verification
Fabricator’s RoHS Process Declaration	Your PCB manufacturer	Confirms lead-free assembly compatibility
Surface Finish Specification	Fabrication note	Must specify ENIG, ENEPIG, or immersion tin/silver

RoHS-compliant surface finishes include immersion silver, immersion tin, or ENIG (Electroless Nickel Immersion Gold) — these replace finishes containing restricted substances like lead or cadmium.

Useful Compliance Resources for PCB Engineers

These resources are essential references when preparing documentation or specifying Doosan materials for regulated markets:

• Doosan Electro-Materials CCL Product Portal — doosanelectromaterials.com — Per-product RoHS and MSDS downloads
• EU RoHS Official Directive Text (2011/65/EU and 2015/863) — eur-lex.europa.eu — Primary legislative source for RoHS 2 and RoHS 3
• IEC 61249-2-21 Standard — iec.ch — Halogen-free laminate material specification
• IPC-1752A Material Declaration Standard — ipc.org — Industry-standard format for substance declaration forms
• ECHA REACH SVHC Candidate List — echa.europa.eu — Updated list of Substances of Very High Concern under REACH
• IEC 63000:2016 — iec.ch — Technical documentation standard for RoHS assessment of EEE

5 FAQs on Doosan PCB RoHS Compliance

Q1. Does every Doosan laminate product come with a downloadable RoHS certificate?

Yes. Every current CCL product on the Doosan Electro-Materials website includes a dedicated “RoHS Download” button alongside the MSDS download. These are product-specific declarations, not blanket company-level statements — which is what your quality team and auditors will want.

Q2. Is the DS-7409DQN halogen-free and RoHS compliant at the same time?

Yes. The DS-7409DQN is explicitly listed as halogen-free and is positioned for 800G network equipment and 5G/6G base station applications, with both an RoHS download and MSDS available on the product page. This makes it one of Doosan’s most fully compliant high-speed options for regulated-market designs.

Q3. Will TBBPA eventually become a restricted substance under RoHS?

It’s a genuine watch item. The EU was expected to restrict TBBPA under RoHS 3 as of 2023, but the proposal was delayed as of July 2024. If you’re designing a product with a 5–10 year lifecycle, specifying a halogen-free Doosan product now — like the HG or DQN series — insulates your design against that future regulatory move.

Q4. Does RoHS compliance guarantee the laminate is also REACH compliant?

Not automatically — they are separate regulatory frameworks. Doosan products comply with both RoHS directive requirements and REACH regulation, with environmental declarations and conflict minerals documentation available through Doosan’s quality department. Confirm REACH compliance separately and request the SVHC declaration alongside your RoHS certificate.

Q5. Do Doosan halogen-free laminates process the same as standard FR-4 on the fab floor?

In most cases, yes. The DS-7409HG series is described as compatible with similar FR-4 PCB processing, which means your fabricator typically does not need new press cycles, drill parameters, or chemistry for standard multilayer builds. Higher-performance variants may require specific lamination profiles — always confirm with your fabricator before committing to a stack-up.

The Bottom Line on Doosan PCB RoHS Compliance

Doosan’s laminate portfolio is fully RoHS compliant across its entire product lineup. For engineers who need to go further — halogen-free, REACH-compliant, or prepared for future TBBPA restrictions — the HG and DQN product families deliver all of that without forcing a change in fabrication process or a significant cost penalty.

The documentation infrastructure is there: per-product RoHS certificates, MSDS sheets, and IEC 61249-2-21 compliance declarations are all downloadable directly from the Doosan product portal. That makes the compliance audit trail straightforward to build, which is exactly what you need when your product goes to CE marking review or a tier-one OEM qualification.

Know your tier. Get your documents. And make sure your fabricator’s process declaration aligns with the laminate you specified.

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