Thermal + EMI Absorbing
RF Absorber Selection Guide: Applications & Specs
An RF absorber is a tuned part, not a broadband wall. See the five application families, why their dB numbers differ, and the checks to run before you commit.
Archive
All Articles
Every guide on the ZIITEK blog, newest first.
49 articles
Sealing & Cushioning
Open-Cell vs Closed-Cell Foam for Gaskets
Open-cell foam cushions and absorbs sound; closed-cell foam seals water out. Compare compression set, water absorption, IP ratings and flame behaviour.
Consumer Electronics
How Long Do Thermal Pads Last? Life by Application
Thermal pad life is three clocks, not one: up to 12 months in storage, 3-10 years in service, and zero recovery once a pad is re-clamped. How to tell which.
Data Center & AI
High-Conductivity Thermal Pads (15–18 W/mK)
Server pads at 15–18 W/mK only pay off when the bond line is thin and the pressure is real. Read the datasheet, size hardness, set assembly pressure, qualify.
EV Battery Thermal
Thermal Runaway: Materials That Help Contain It
How mica, aerogel, ceramic-fiber and silicone-foam barriers slow thermal runaway propagation between cells, and the specs to check before you specify.
Die-Cutting & Converting
Custom Die-Cut TIM Parts: A Capability Checklist
A custom die-cut TIM part is a stack, not an outline. Seven questions — material, tolerance, format, operations, tooling, delivery, quality — set feasibility.
Potting & Insulation
Epoxy Potting Compound: A Guide for Electronics
Choose a potting compound by Tg, CTE and W/m·K, not by color. How epoxy, polyurethane and silicone differ, how to pour without voids, and what UL 94 proves.
Certifications & Compliance
RoHS & REACH Compliance: Prop 65 and PFAS for TIMs
RoHS and REACH compliance, plus Prop 65 and PFAS duties: the thresholds, the scope traps, and the five checks a thermal pad buyer must run on a declaration.
Cross-Reference
Laird Tputty 607 Alternative: ZIITEK TIF070-11
Compare Laird Tputty 607 with ZIITEK TIF070-11: published specs, test-method differences, and what to validate before you swap a one-part thermal gel.
Consumer Electronics
Thermal Pads for SSD & M.2: Selection Guide
Picking a thermal pad for an M.2 SSD is a gap-and-compression problem, not a W/mK contest. Measure the gap, set thickness and hardness, verify impedance.
Heating Films (Kheat)
Silicone Rubber Heater Pads: Selection Guide
How to specify a silicone rubber heater pad: watt density, voltage, temperature and thickness, plus construction, mounting, control and a supplier checklist.
Sealing & Cushioning
Rubber vs Silicone Gaskets: Which to Choose
Compare rubber vs silicone gaskets on temperature, chemical resistance, compression set, flame rating and cost — then choose the right elastomer for the joint.
Thermal + EMI Absorbing
EMI Shielding Basics for Electronics Engineers
EMI shielding for electronics is a choice of reflection or absorption, not a metal wall. Learn the mechanisms, board-level moves and specs that decide a fix.
EV Battery Thermal
One-Stop Battery Thermal: Conduction, Seal & Heat
A one-stop battery thermal supplier only pays off when conduction, sealing and heating share one compression curve. Here is how to decide, and what to verify.
Data Center & AI
Liquid Metal TIM for Data Centers: When to Use
Decide whether liquid metal TIM belongs in a data center build: five signs it earns its place, five constraints that rule it out, and a supplier checklist.
Die-Cutting & Converting
How to Specify Die Cut Gaskets & Thermal Pads
Die cut gaskets seal, thermal pads conduct heat — same die, opposite rules. Here is the six-point RFQ spec, with real material data and how tolerance is set.
Potting & Insulation
Thermally Conductive Plastic vs Aluminum: A Guide
Thermally conductive plastic vs aluminum: one resistance decides the swap. Compare conductivity, weight, isolation and tooling, plus where aluminum still wins.
Cross-Reference
Thermal Pad Cross Reference: How to Read the Chart
A thermal pad cross reference pairs one brand's grade with another's. How to read each column, decide equivalence, and verify a swap before you qualify it.
TIM Selection Guide
How to Choose a Thermal Interface Material Supplier
Eight checks that separate a real thermal interface material supplier from a reseller: certificate scope, test conditions, Cpk, traceability and lead time.
Certifications & Compliance
IATF 16949 Automotive Supplier: What It Means
An IATF 16949 certificate covers one manufacturing site and one defined scope, not a whole company. Five checks that tell a buyer whether it covers your part.
Thermal + EMI Absorbing
5G Thermal Management: Base Stations & Optical Modules
5G thermal management starts at the gap, not the W/mK: pick thermal materials for base station radios and optical modules by heat path and mounting pressure.
Heating Films (Kheat)
Polyimide Heater Design: Custom Watt Density & Zones
A polyimide heater is an etched-foil circuit sized like a resistor. This guide covers construction, watt-density math, voltage, zones, and a spec checklist.
Consumer Electronics
Graphite Heat Spreader Sheets for Thin Devices: A Guide
How to choose a graphite heat spreader sheet for thin consumer devices: anisotropy, natural vs synthetic graphite, thickness and adhesive, and supplier checks.
Sealing & Cushioning
UL94 V-0 Silicone Foam: Flame-Retardant Sealing
Looking for UL94 V-0 silicone foam? V-0 is a flammability pass, not a sealing proof. Criteria, foam ratings, and a spec checklist that verifies the claim.
EV Battery Thermal
Gap Filler for EV Battery Modules: Selection Guide
How to select a thermal gap filler for EV battery modules: thermal conductivity, gap size, one-part vs two-part, cure, adhesion, dielectric, qualification.
Data Center & AI
Thermal Interface Materials for AI Hardware: Selection Guide
Choosing thermal interface materials for AI hardware: compare pads, gap fillers, grease, and PCM by conductivity, thickness, and pressure in five steps.
Die-Cutting & Converting
What Is Skiving? Precision Manufacturing Process
Skiving is a precision cutting process that shaves ultra-thin, uniform layers from blocks and sheets — and why it matters for thermal interface materials.
Heating Films (Kheat)
EV Battery Heater: Choosing a Heating Film for Cold Preheat
How to choose an EV battery heater for cold-weather preheat: PI film vs silicone pad, power density, dielectric specs, placement, control and compliance.
Potting & Insulation
Thermally Conductive Electrical Insulators (Sil-Pad Type)
Choosing thermally conductive electrical insulators: sil-pad type pads vs mica, ceramic and grease stacks, judged by breakdown voltage, W/m·K, thickness and UL.
Cross-Reference
How to Find a Drop-in Replacement Thermal Pad
How to find a drop-in replacement thermal pad: match W/mK, Shore 00 hardness, thickness, size and temperature range, and swap TIM brands without re-qualifying.
Certifications & Compliance
UL 94 V-0 vs VTM-0 Flame Ratings: TIM Selection
V-0 and VTM-0 are two different UL 94 burn tests, not two safety tiers. Learn how each is run and which flame rating your thermal pad or gap filler needs.
Thermal + EMI Absorbing
Thermally Conductive EMI Absorbing Materials: Selection Guide for 5G, RF and Optical Modules
Thermal conductive + EMI absorbing materials solve board-level heat and noise with one pad. Learn how they work, the specs that matter, and how to choose.
Consumer Electronics
How to Choose a Thermal Pad for GPU Cooling
Choosing a thermal pad for GPU cooling comes down to thickness, W/m·K, and hardness. Measure the old pad, match the heat load, and pick the right material.
EV Battery Thermal
EV Battery Pack Thermal Management Materials: Complete Guide
How to choose EV battery pack thermal management materials: thermal pads, gap fillers, PCMs, foams and heating films — zone by zone, with selection criteria.
Data Center & AI
Choosing a Thermal Gap Filler for AI Servers & GPUs
AI servers need a thermal gap filler that matches gap height, bond line and dispensing. Compare gap pads vs gel, six specs, and a five-step selection workflow.
Sealing & Cushioning
Silicone Foam Gaskets for Electronics Sealing: IP68 Guide
Silicone foam gaskets for electronics sealing reach IP68 when you control compression set, squeeze and groove design. Specs, tests and sourcing steps here.
TIM Selection Guide
How to Remove & Clean Off Thermal Paste
Remove old thermal paste with 90–99% isopropyl alcohol and a lint-free cloth—no acetone or water. Step-by-step for CPU, GPU and laptop, plus what to avoid.
TIM Selection Guide
How Much Thermal Paste to Use
How much thermal paste? A pea-sized dot (~0.1–0.3 g) covers most desktop CPUs. Exact amounts by chip and GPU, applications per tube, and why more isn't better.
TIM Selection Guide
Thermal Pad Thickness & Compression Guide
Thermal pads only reach their rated W/mK under compression, usually 20–30%. Learn to measure the gap, pick nominal thickness, and set the right mounting force.
TIM Selection Guide
How to Apply Thermal Paste Correctly: CPU & GPU
Apply thermal paste correctly: put one pea-sized dot in the center of the CPU, then mount the cooler evenly so it spreads. Coverage beats pattern—full guide.
TIM Selection Guide
How to Choose a Thermal Interface Material
Choosing a thermal interface material means matching W/mK, thickness, hardness and insulation to your gap and power budget. A step-by-step guide for engineers.
TIM Selection Guide
Gap Filler vs Gap Pad vs Phase Change Material
Gap fillers conform to large, uneven gaps; gap pads are the fastest drop-in; PCM gives the lowest resistance on flat, high-power lids. A design-in comparison.
TIM Selection Guide
Thermal Pad vs Thermal Paste: Which Should You Use?
A practical comparison of thermal pads and thermal paste — how each works, where each wins, and how to choose by gap size, W/mK and manufacturability.
TIM Selection Guide
What Is Phase Change Material (PCM) TIM?
A phase change material (PCM) TIM is a solid pad that softens near 50–60 °C to flow like grease and set a thin bond line — without paste's pump-out. How it works.
TIM Selection Guide
Thermal Resistance vs Thermal Impedance Explained
Thermal resistance (K/W) is steady-state; thermal impedance adds time or area — for a TIM it's °C·in²/W at a set thickness. How they differ and when each matters.
TIM Selection Guide
Understanding Thermal Conductivity (W/mK) in TIM
A TIM's W/mK measures bulk conductivity, not real cooling. Learn what W/mK means, why the datasheet number misleads, and what predicts junction temperature.
TIM Selection Guide
Thermal Interface Materials: Selection Guide
Thermal interface materials fill microscopic air gaps between a chip and heatsink to cut thermal resistance. Compare TIM types, W/mK and how to choose one.
TIM Selection Guide
What Is Thermal Paste? Types, W/mK & How It Works
Thermal paste is a conductive compound that fills the microscopic air gaps between a chip and its heat sink. Learn its types, W/mK ratings, and how it works.
TIM Selection Guide
What Is a Thermal Pad? How They Work, Types & W/mK
A thermal pad is a soft, pre-cut thermal interface material that fills the gap between a chip and heatsink. Learn how they work, W/mK, types and how to choose.