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Contents

README

markdown

HCCF2-455.000-LTWCGL

HCI (Suzhou HangJing Elec and Tech) · Ceramic band-pass filter, 455 kHz · SMD 11.9 x 6.5 mm, 4 pads

HCI SMD ceramic band-pass filter for a 455 kHz AM IF in the LTWC package: +/-4.5 kHz 6 dB bandwidth, 45 dB stop band, 2 kohm terminations (the LTWC455G row of the series datasheet). Four pads: input, output and two grounds.

Verification

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Pinout

Pin Name Type Function
1 IN passive Input (datasheet p.1, "Connection").
2 OUT passive Output.
3 GND passive Ground.
4 GND passive Ground.

Note: pads 3 and 4 are both ground. The symbol has one GND pin numbered [3,4], KiCad's stacked-pin notation, so wiring it connects both pads; the Fusion library connects GND to pads "3 4" and the Altium library stacks pins 3 and 4.

Note: Input (1) and output (2) share one long side and the two grounds the other. Swapping input and output is harmless for this passive filter; turning the part 180 degrees is not, because it puts the signal pads on ground. When ordering assembled boards, check in the placement preview that the 1-2 side lands on the signal pads.

Key specifications

Parameter Value Source
Centre frequency 455 kHz Datasheet p.1
6 dB bandwidth +/-4.5 kHz min (LTWC455G row) Datasheet p.1
Attenuation bandwidth +/-10 kHz Datasheet p.1
Stop-band attenuation 45 dB min Datasheet p.1
Ripple 3 dB max Datasheet p.1
Insertion loss 6 dB max Datasheet p.1
Input / output impedance 2 kohm Datasheet p.1
Operating temperature -20 to +80 C Datasheet p.1
Body 11.9 x 6.5 x 3.0 mm max (LTWC series) Datasheet p.1

Ordering

Distributor Part number Note
LCSC / JLCPCB C19186014 JLC Extended part, 296 in stock on 2026-10-08
Mouser not listed no listing for this manufacturer's part (searched 2026-10-08)
DigiKey not listed no listing for this manufacturer's part (searched 2026-10-08)

CAD

File What it is
hccf2-455-000-ltwcgl.kicad_sym KiCad symbol, with MPN, manufacturer and distributor numbers as properties
hccf2-455-000-ltwcgl.kicad_mod KiCad footprint: AMFM:HCCF2_SMD-4P_11.9x6.5mm, project library, LCSC land pattern
hccf2-455-000-ltwcgl.step / hccf2-455-000-ltwcgl.glb 3D model, Z-up, seated on z = 0: LCSC / EasyEDA model (easyeda2kicad), EasyEDA logo stripped, seated on z = 0
hccf2-455-000-ltwcgl-etched.step / hccf2-455-000-ltwcgl-etched.glb The same model with the part number laser-etched on top as a separate, toggleable Adom.LaserEtch group (a virtual identification aid, not the maker's real marking)
hccf2-455-000-ltwcgl.lbr Fusion 360 / EAGLE library: one deviceset, each with its own MPN, manufacturer and LCSC / Mouser / DigiKey attributes
altium/Adom_hccf2_455_000_ltwcgl.SchLib / .PcbLib Altium library pair (adom-lbr, no Altium needed): symbol and footprint with the 3D body, parameters carry the part numbers; altium/*.adom-lbr.json is the canonical hub each was built from

The 3D model comes from LCSC's EasyEDA library. Its embossed EasyEDA / LCEDA logo glyphs were removed with OpenCascade (BRepAlgoAPI_Defeaturing, then merging coplanar faces) and the body, pads, size and colours were kept; the source hashes, removed faces and before/after bounding boxes are in page.json under component.provenance.

The footprint points at ${KIPRJMOD}/hccf2-455-000-ltwcgl.step: copy the STEP next to your KiCad project (or edit the path).

Provenance

  • Datasheet: docs/hccf2-455-000-ltwcgl-datasheet.pdf, sha256 a40481542eacd94a, retrieved 2026-10-08 from LCSC
  • Specs: each row names its source: the manufacturer datasheet (with page) or the LCSC parametric listing (retrieved 2026-10-08).
  • Distributor numbers: looked up 2026-10-08 with adom-parts-search (Mouser, DigiKey, JLCPCB), exact part number and manufacturer only.
  • CAD: footprint AMFM:HCCF2_SMD-4P_11.9x6.5mm; 3D: LCSC / EasyEDA model (easyeda2kicad), EasyEDA logo stripped, seated on z = 0.