BOM-DAT/CONN-DAT/conn-pin-header-dat/conn-pin-header-dat.md
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@@ -35,6 +35,8 @@ dimension
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## bended 90-degree pin header
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+- [[CCO3515-dat]]
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+
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material version:
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- Iron needle (nickel-plated)
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![](2025-04-08-15-15-22.png)
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+
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+
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+
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### reversed bend
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![](2025-04-08-15-17-05.png)
Board-dat/NBL/NBL1111-dat/NBL1111-dat.md
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# NBL1111-dat
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-https://www.electrodragon.com/product/bluetooth-5-2-stereo-audio-data-transmission-module-bk3266/
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-breakout board - [[NBL1115-dat]]
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+board - [Bluetooth Audio Breakout Board, w/Amp., Car Receiver, Bluetooth 5.0, BK3266](https://www.electrodragon.com/product/bluetooth-5-2-stereo-audio-data-transmission-module-bk3266/)
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+
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+
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+breakout board - [[NBL1115-dat]]s
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- [[bt-audio-dat]]
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## ref
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-- [[bt-audio-dat]]
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\ No newline at end of file
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+- [[bt-audio-dat]] - [[BK3266-dat]]
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+
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+- [[NBL1111]]
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\ No newline at end of file
PCB-dat/PCB-design-dat/footprint-dat/SSOP-dat/2025-09-29-20-25-04.png
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Binary files /dev/null and b/PCB-dat/PCB-design-dat/footprint-dat/SSOP-dat/2025-09-29-20-25-04.png differ
PCB-dat/PCB-design-dat/footprint-dat/SSOP-dat/SSOP-dat.md
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+
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+# SSOP-dat
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+![](2025-09-29-20-25-04.png)
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+
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+
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+
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+## 0.635 mm Pitch SSOP
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+- **Pin pitch (e)**: 0.635 mm
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+- **Lead width (b)**: 0.18 – 0.30 mm
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+- **Recommended pad width**: ~0.25 mm
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+- **Recommended pad length**: 1.30 – 1.50 mm
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+
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+## 0.65 mm Pitch SSOP
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+- **Pin pitch (e)**: 0.65 mm
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+- **Lead width (b)**: 0.22 – 0.38 mm
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+- **Recommended pad width**: 0.30 mm (nominal)
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+- **Recommended pad length**: 1.40 – 1.60 mm
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+- **Pad-to-pad spacing**: 0.35 mm (center-to-center 0.65 mm minus pad width 0.30 mm)
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+
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+
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+## SSOP-16 (0.635 mm pitch) Stop Mask Guidelines
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+
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+- **Copper pad width**: ~0.25 mm (typical)
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+- **Solder mask expansion**: +0.05 – 0.07 mm per side
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+- **Mask opening width**: ~0.35 – 0.39 mm
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+- **Pad-to-pad spacing (center-to-center)**: 0.635 mm
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+- **Mask dam (between pads)**:
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+ - 0.635 – (0.25 + 0.25) – (2 × expansion 0.05–0.07)
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+ - ≈ 0.08 – 0.10 mm left as mask dam
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+- **Fabrication note**: Some fabs require **≥0.10 mm mask dam**, so if your fab’s capability is 0.10 mm, you are right at the limit.
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+
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+
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+
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+
PCB-dat/PCB-design-dat/footprint-dat/footprint-dat.md
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@@ -5,6 +5,11 @@
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- [[kicad-footprint-dat]]
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+- [[QFN-dat]]
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+
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+- [[QFP-dat]] - [[SSOP-dat]] - [[SOP-dat]]
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+
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+
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## common footprint libraries
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- [[nettie-dat]]