Shengyi S7136H
Dk 3.6 | Df 0.0035 @ 10 GHz — Chinese-manufactured woven glass PTFE delivering Rogers-class performance at 30-50% lower cost for domestic 5G.
3.6
Dk @ 10 GHz
0.0035
Df @ 10 GHz
400 C
Td
30-50%
Cost Savings
What is Shengyi S7136H?
Shengyi S7136H is a woven glass reinforced PTFE laminate manufactured domestically in China, targeting the massive 5G infrastructure build-out where Rogers materials face both cost and supply chain constraints. At Dk 3.6 and Df 0.0035, it delivers RF performance comparable to Rogers RO4350B while costing 30-50% less with zero import duties for Chinese-manufactured equipment.
The Chinese 5G rollout has deployed over 3.5 million base stations, each containing multiple PTFE or low-loss PCBs for antenna feeds and power amplifier modules. At this scale, the cumulative material cost advantage of S7136H over imported alternatives reaches billions of RMB annually across the industry.
S7136H has been qualified by all major Chinese telecom equipment manufacturers (Huawei, ZTE, CICT) for 5G macro cell and small cell applications. Its performance at sub-6 GHz frequencies (the primary Chinese 5G band) is fully adequate, making imported materials unnecessary for the majority of domestic 5G deployments.
30-50% Cost Savings
Dramatic cost reduction versus imported Rogers for 5G volume.
5G Qualified
Approved by Huawei, ZTE, and CICT for production 5G equipment.
Zero Import Duty
Domestic production eliminates tariffs for Chinese-manufactured equipment.
Adequate RF Performance
Df 0.0035 meets sub-6 GHz 5G antenna requirements.
Shengyi S7136H Key Properties
Representative values from the manufacturer datasheet.
| Property | Value | Why it matters |
|---|---|---|
| Dielectric constant (Dk) | 3.6 @ 10 GHz | Moderate Dk for standard RF trace geometries. |
| Dissipation factor (Df) | 0.0035 @ 10 GHz | Adequate for sub-6 GHz 5G antenna feeds. |
| Decomposition temp (Td) | 400 C | Excellent thermal stability. |
| Reinforcement | Woven E-glass / PTFE | Mechanical stability for volume manufacturing. |
| CTE z-axis | ~170 ppm/C | Moderate PTFE expansion — manage with thin builds. |
| Moisture absorption | 0.03% | Low uptake for outdoor antenna environments. |
| Peel strength | 8+ lb/in | Good copper adhesion for reliable assembly. |
| Processing | Standard PTFE | Sodium-etch preparation for plated through-holes. |
| Availability | Excellent in China | Massive domestic production capacity, 1-2 week lead. |
Why Chinese 5G Standardized on S7136H
China's 5G deployment strategy prioritized domestic supply chain independence. With over 3.5 million base stations deployed and millions more planned, relying on imported Rogers materials created both cost pressure (30-50% premium plus import duties) and supply chain risk (single-source dependency on a US manufacturer).
At sub-6 GHz frequencies (3.5 GHz n78 band — China's primary 5G band), the performance difference between S7136H (Df 0.0035) and RO4350B (Df 0.0037) is negligible. The 5% Df difference translates to approximately 0.02 dB insertion loss difference on a typical 8cm antenna feed — unmeasurable in system performance.
Shengyi's PTFE production capacity has scaled to meet national demand, with multiple factory lines dedicated to S7136H production. Lead times of 1-2 weeks from order to delivery at the PCB fabricator eliminate the 4-8 week import cycles previously required for Rogers materials.
3.5M+ Base Stations
Deployed in the world's largest 5G network across all major Chinese carriers.
OEM Qualified
Production-approved at Huawei, ZTE, and CICT telecom platforms.
Supply Chain Independent
Eliminates US import dependency for Chinese telecom infrastructure.
Scale Economics
Massive production volume drives industry-lowest PTFE pricing.
5G RF Laminate Comparison
S7136H versus alternatives for sub-6 GHz 5G applications.
| Material | Dk | Df | Best For |
|---|---|---|---|
| Shengyi S7136HThis page | 3.6 | 0.0035 | Chinese PTFE — 5G domestic standard, lowest cost. |
| Rogers RO4350B | 3.48 | 0.0037 | US import — industry benchmark, higher cost + duty. |
| Taconic RF-35 | 3.50 | 0.0018 | US PTFE — lower loss, higher cost, niche volume. |
| Panasonic Megtron 6 | 3.3 | 0.002 | Japanese hydrocarbon — different category, non-PTFE. |
| Standard FR-4 | 4.2 | 0.020 | Baseline — inadequate for RF antenna applications. |
Shengyi S7136H Applications
Chinese 5G antenna feeds, domestic RF modules, cost-sensitive PTFE designs, base station power amplifiers
5G Macro Cell Antennas
Sub-6 GHz massive MIMO antenna feed networks for outdoor macro cells.
Small Cell Antennas
Urban small cell antenna substrates for densification deployments.
Power Amplifier Modules
PA boards operating at 3.5 GHz with moderate output power.
Industrial Radar
24 GHz industrial sensing and level measurement at budget pricing.
Fixed Wireless Access
Sub-6 GHz FWA CPE antenna boards for last-mile connectivity.
RF Front End Modules
Filter, duplexer, and LNA boards for base station RF chains.
S7136H Design and Migration Notes
Migrating from RO4350B to S7136H requires minor retuning due to the Dk difference (3.6 vs 3.48). Expect approximately 5% trace width reduction for the same impedance. Antenna patch dimensions scale similarly — prototype verification recommended before production migration.
S7136H processes identically to other woven-glass PTFE materials. Existing fabricator qualifications for Rogers PTFE processing apply directly. Sodium-etch surface preparation, controlled drill parameters, and PTFE-compatible lamination profiles are standard.
Get Instant Quote5% Width Adjustment
Slightly narrower traces than RO4350B due to higher Dk — verify on prototype.
Same PTFE Process
Fabricators qualified for Rogers PTFE process S7136H without changes.
Antenna Retuning
Patch dimensions scale with Dk — simulate and verify resonance.
Volume Procurement
Contact Shengyi directly for volume pricing below standard distribution.
Genuine Shengyi S7136H, Verified on Every Order
Material CoC
Certificate of Conformance with lot number ships with every order.
Stock Verified
We confirm laminate availability before order confirmation.
No Substitutions
Specified material guaranteed — never swapped without written approval.
FAQ
Shengyi S7136H Questions
What is Shengyi S7136H?
A Chinese-manufactured woven glass PTFE laminate with Dk 3.6 and Df 0.0035 at 10 GHz, designed as a domestic alternative to Rogers for 5G infrastructure.
S7136H vs Rogers RO4350B?
Nearly equivalent RF performance (Df 0.0035 vs 0.0037). S7136H costs 30-50% less with zero import duty for Chinese-manufactured equipment. Dk is slightly higher (3.6 vs 3.48).
Is S7136H suitable for mmWave 5G?
S7136H is optimized for sub-6 GHz (3.5 GHz band). For 26/28 GHz mmWave, lower-loss materials like RO4003C or Megtron 6 are recommended.
Which OEMs have qualified S7136H?
All major Chinese telecom equipment manufacturers including Huawei, ZTE, and CICT have production qualifications for S7136H in 5G equipment.
Can AtlasPCB fabricate S7136H boards?
Yes. S7136H is our most cost-effective PTFE option with excellent domestic supply and 1-2 week lead times.
Need Shengyi S7136H fabrication?
S7136H — Dk 3.6, PTFE performance at domestic pricing — for 5G and RF volume production.
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