柔性加熱片製程能力
硬式 PCB 製程能力
軟性 PCB 製程能力
PCBA 製程能力
鋼板製程能力
PCB 佈局能力
PI
矽膠
類別 | 特性 | Capability | 說明 |
|---|
Materials & Construction | Heating structure | Single-layer heating conductor | Crossovers and multilayer heating conductors are not supported. Multiple independent circuits are supported, with no fixed limit on circuit quantity. |
Circuit fabrication | Etching | PI heaters use etched heating circuits only. The specific etching or laser processing method is selected by the factory according to the order. | |
Heating conductor material | Stainless steel / Brass / Fe-Cr-Al alloy | The same geometric manufacturing limits apply to all three etched conductor materials. | |
Etched metal thickness | 30 μm / 50 μm | This is the thickness of the etched metal foil, not the PI base film or total finished-product thickness. | |
Standard PI film temperature rating | -40°C to 150°C (72 h); short-term maximum 200°C (30 min) | This rating applies to the film material only. For an assembled product with adhesive, lead wires, NTC, or thermostat, the maximum operating temperature is limited by the lowest-rated component. | |
High-temperature PI film rating | -40°C to 250°C (72 h); short-term maximum 280°C (30 min) | Standard and high-temperature PI use the same geometric manufacturing parameters. | |
Flexibility | Bendable; best flexibility among the current product range | Suitable for curved-surface or bent installation, but repeated dynamic flexing is not recommended. | |
Dimensions & Thickness | Finished-product size range | Minimum 10 mm × 10 mm; maximum 1200 mm × 490 mm | Dimensions are evaluated using the minimum bounding rectangle. Both length and width must meet the minimum-size requirement. |
Standard pricing size | Long side of bounding rectangle ≤590 mm | An oversized-product surcharge applies when the long side exceeds 590 mm. A size of 590 mm × 490 mm is not a fixed product format. | |
Standard outline tolerance | Long side ≤300: ±1 mm; >300–600: ±1.5 mm; >600–1000: ±2 mm; >1000–1200: ±3 mm | The tolerance tier is determined by the longer side of the product's minimum bounding rectangle. Laser cutting is excluded. | |
Laser-cut outline | Outline tolerance up to ±0.3 mm; maximum bounding dimension ≤470 mm | The cut edge may show blackening. The factory determines the processing method according to internal rules; it is not a customer-selectable option. | |
Finished thickness tolerance | ±0.1 mm | The same ±0.1 mm tolerance applies to PI heaters with or without adhesive. A high-precision tolerance of ±0.03 mm is not guaranteed. | |
Custom shapes | Regular and irregular outlines supported | Supported geometries include circles, rings, sectors, trapezoids, irregular contours, internal cutouts, multiple holes, slots, and open notches. | |
Circuit Design | Minimum trace width | 0.25 mm | Applies to etched stainless steel, brass, and Fe-Cr-Al heating circuits. |
Minimum trace spacing | 0.25 mm | Measured as the shortest edge-to-edge distance between two heating conductors. | |
Recommended design range | Trace width and spacing are typically 0.25–3.5 mm | Each product must be evaluated according to resistance and routing requirements. Trace width is generally slightly greater than spacing, although spacing may also be slightly greater than trace width. | |
220 V design recommendation | Recommended trace width and spacing ≥1.8 mm | This is an engineering design recommendation for 220 V applications and does not replace the minimum manufacturing capability. | |
Heating conductor to outline | ≥1 mm | Measured from the conductor edge to the nominal finished-product outline. The customer does not need to add outline dimensional tolerance to this clearance. | |
Pads | Minimum pad opening | 2 mm × 2 mm | This is the coverlay opening for soldering, not the metal pad size. |
Metal overlap around opening | ≥0.5 mm on each side | The opening must lie completely within the metal pad. A connected breakout trace may continue beyond the pad. | |
Typical minimum metal pad | Typically ≥3 mm × 3 mm | Derived from the minimum opening and metal overlap. The actual pad is not required to be rectangular. | |
Metal pad to outline | ≥1 mm | Measured from the metal pad edge to the nominal finished-product outline. | |
Metal pad to non-connected conductor | ≥1 mm | Measured from the metal pad edge to a non-connected conductor edge. This limit does not apply to the breakout trace connected to the pad. | |
Metal pad to metal pad | ≥1 mm | Measured as the shortest edge-to-edge distance between two metal pads. No separate opening-to-opening requirement is specified. | |
Holes & Slots | Minimum finished round-hole diameter | Ø1 mm | Calculated using the finished-hole diameter. |
Minimum internal closed-slot width | 1 mm | Applies to elongated and irregular holes; measured at the narrowest point of the slot contour. | |
Minimum open edge-notch width | 1.5 mm | Applies to notches connected to the product outline; measured at the narrowest point. | |
Finished hole to outline | ≥1 mm | Measured as the shortest distance from the finished-hole edge to the nominal finished-product outline. | |
Finished hole to heating conductor | ≥1 mm | Measured from the finished-hole edge to the heating-conductor edge. | |
Hole size tolerance | ±1 mm | Applies to round-hole diameter and the specified width of irregular holes or slots. | |
Hole position tolerance | ±1 mm | Defined separately from the hole size tolerance. | |
Electrical & Testing | Resistance tolerance for JLC-designed orders | Etched ≥1 Ω: ±5%; etched <1 Ω: ±8% | Measured at room temperature by connecting the instrument directly to the metal pads. Soldered lead-wire resistance is excluded. This tolerance definition has been confirmed. |
Customer-supplied drawing orders | Produced to the drawing; actual resistance tested on every piece | The customer circuit is not recalculated. Target resistance and heating performance of a customer-designed circuit are not guaranteed. | |
Resistance inspection | 100% in-process resistance testing + outgoing sampling inspection | An internal QC report is retained. The outgoing QC report normally shows test data for 5 pcs per batch and is not provided for every individual unit by default. | |
Theoretical free-air temperature assessment | Based on 25°C ambient, still air, unbonded installation, no thermal insulation, and no forced-air cooling | The result is a theoretical reference and does not guarantee operating temperature under the customer's actual installation conditions. | |
Product Options | Pressure-sensitive adhesive | 3M 9448A / 468 / 55236 / 9077; Tesa 8853 | All listed adhesives can be used with PI. Refer to the selected model notes on the quotation page for temperature rating and price. |
Default lead wires | UL 3239 silicone wire / UL 1332 PTFE wire; red/black | Lead-wire length is selected by the customer. | |
Silicone sleeve | Maximum length 2 m | The 2 m limit applies only to the sleeve, not to the maximum lead-wire length. | |
NTC | SMD NTC is generally recommended; probe-type NTC is also supported | Select a part from the component library whenever possible. A JLCPCB Parts number may also be submitted for solderability review. | |
Coverlay and openings | Custom pad and component openings supported | Circuit transfer, alignment lamination, and custom openings are supported. The specific process is arranged by the factory. | |
Files & Panelization | Customer upload formats | DXF / DWG / Gerber / PDF / JPG / PNG | Customer files are reviewed by engineering and converted into internal production files. |
Recommended production panel sizes | 250 mm × 350 mm / 250 mm × 500 mm | The customer submits a single-piece file and the factory completes production panelization. Internal unit spacing and breakaway-tab parameters are not published. |
柔性加熱片常見問題
矽膠加熱片與 PI 加熱片有何差異?
矽膠較耐用、柔軟,適合戶外或嚴苛環境。PI(聚醯亞胺)加熱片採用薄型聚醯亞胺膜,適合需要輕量化與精準加熱控制的緊湊型應用。
矽膠加熱片通常具有較高的機械強度;PI 加熱片則具備較佳的厚度控制與快速反應。
沒有設計檔案也可以下單嗎?
JLC 柔性加熱片的電阻值公差為何?
JLC 柔性加熱片焊接時常用哪些線材?
是否支援焊接溫控器、NTC 熱敏電阻或客製端子?
是否有建議的功率密度範圍?若功率密度過高會如何?