# Removable Teddy Speaker Power Module

## Description

A protected, removable 5 V power interface for a splash\-resistant Bluetooth speaker mounted in a stuffed bear, using rugged detachable cabling and an external certified battery pack\.

## Project Details

- **Owner:** 3m4n73l
- **Created:** 9/6/2026
- **Last Updated:** 9/6/2026
- **Visibility:** Public

## Key Components

### D1 — [SMAJ5\.0A\-Q](https://flux.ai/lcsc/smaj5p0a-q~a86n.md)

- Functional Group: Input Protection
- Package or Case Code: SMA\_L4\.4\-W2\.8\-LS5\.1\-RD
- Manufacturer Part Number: SMAJ5\.0A\-Q
- Manufacturer Name: BOURNS
- Role: Protection
- Role Details: Bourns 5 V unidirectional 400 W TVS located downstream of Q1: cathode to 5V\_REVERSE\_SAFE and anode to GND, so reversed input is blocked by Q1 rather than crowbarred by D1\.
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: TVS
- LCSC Part Number: C1869355
- Datasheet URL: https://www\.lcsc\.com/datasheet/C1869355\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNeR1VeUVFRTlBbUzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D

**Pins:**
- A [pin 2]
- C [pin 1]

### F1 — [696103201002](https://flux.ai/silicon-yard/696103201002~ws.md)

- Part Type: Fuse
- Role: Protection
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Part Number: 696103201002
- Manufacturer Name: Würth Elektronik
- Role Details: Wurth 5x20 mm replaceable fuse holder, low contact resistance\. Fit 2\.5 A time\-lag cartridge fuse \(Littelfuse 215\-series 021502\.5MXP equivalent\); selected above 1\.8 A peak to avoid nuisance opening while remaining below 5 V power\-bank 2\.4 A continuous requirement envelope\. Locate physically close to power\-source connector\.
- Functional Group: Input Protection
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/ccb1a305e82a750407679694bc3e6af2b873854c903f37925f942524e4483dc5\.pdf
- Current Rating: 20A

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### J1 — [B2P\-VH\(LF\)\(SN\)](https://flux.ai/lcsc/b2p-vhlfsn~n4oo.md)

- Role Details: JST VH keyed/shrouded 2\-pin input; 10 A rating provides margin over 1\.8 A peak\. Harness must be touch\-safe, strain\-relieved, abrasion\-resistant, and inaccessible while installed; no charging port in toy\.
- Operating Temperature: \-25 \~ \+85℃
- Functional Group: Power Input
- Connector Rows: 1
- Role: Power Input Connector
- Connector Type: Header
- Part Type: Wire To Board / Wire To Wire Connector
- Package or Case Code: CONN\-TH\_B2P\-VH\-LF\-SN
- Connector Positions: 2
- Manufacturer Name: JST
- Manufacturer Part Number: B2P\-VH\(LF\)\(SN\)
- LCSC Part Number: C160315
- Connector Pitch: 3\.96mm
- Connector Gender: Male
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/\_JST\_B2P\-VH\-LF\-SN\_B2P\-VH\-LF\-SN\_C160315\.html
- Voltage Rating: 250V
- Current Rating: 10A
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-B2P\-VH\-LF\-SN\_C160315\.pdf

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### J2 — [B2P\-VH\(LF\)\(SN\)](https://flux.ai/lcsc/b2p-vhlfsn~n4oo.md)

- Operating Temperature: \-25 \~ \+85℃
- Role: Speaker Power Output
- Connector Rows: 1
- Connector Type: Header
- Part Type: Wire To Board / Wire To Wire Connector
- Package or Case Code: CONN\-TH\_B2P\-VH\-LF\-SN
- Connector Positions: 2
- Manufacturer Name: JST
- Manufacturer Part Number: B2P\-VH\(LF\)\(SN\)
- Functional Group: Speaker Output
- LCSC Part Number: C160315
- Connector Pitch: 3\.96mm
- Role Details: JST VH keyed/shrouded 2\-pin output; 10 A rating exceeds 1\.5 A speaker peak\. Final external mating harness must provide sealed enclosure/gland, touch\-safe contacts, strain relief, and splash/impact validation\.
- Connector Gender: Male
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/\_JST\_B2P\-VH\-LF\-SN\_B2P\-VH\-LF\-SN\_C160315\.html
- Voltage Rating: 250V
- Current Rating: 10A
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-B2P\-VH\-LF\-SN\_C160315\.pdf

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### J3 — [B2P\-VH\(LF\)\(SN\)](https://flux.ai/lcsc/b2p-vhlfsn~n4oo.md)

- Operating Temperature: \-25 \~ \+85℃
- Connector Rows: 1
- Connector Type: Header
- Part Type: Wire To Board / Wire To Wire Connector
- Role: Auxiliary Power Output
- Role Details: JST VH keyed/shrouded 2\-pin auxiliary output, capped when unused; auxiliary load limited to 0\.3 A within 1\.8 A total peak\. Cap must be retained/tool\-secured with no loose small parts\.
- Functional Group: Auxiliary Output
- Package or Case Code: CONN\-TH\_B2P\-VH\-LF\-SN
- Connector Positions: 2
- Manufacturer Name: JST
- Manufacturer Part Number: B2P\-VH\(LF\)\(SN\)
- LCSC Part Number: C160315
- Connector Pitch: 3\.96mm
- Connector Gender: Male
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/\_JST\_B2P\-VH\-LF\-SN\_B2P\-VH\-LF\-SN\_C160315\.html
- Voltage Rating: 250V
- Current Rating: 10A
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-B2P\-VH\-LF\-SN\_C160315\.pdf

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### Q1 — [DMP4015SK3\-13](https://flux.ai/lcsc/dmp4015sk3-13~94bh.md)

- Manufacturer Name: DIODES\(美台\)
- Role Details: P\-channel MOSFET high\-side reverse\-polarity element in corrected orientation: drain pin 2/tab to 5V\_FUSED, source pin 3 to 5V\_REVERSE\_SAFE; gate remains on REV\_GATE with R1 pull\-down\.
- Functional Group: Input Protection
- Product Info Url: https://lcsc\.com/product\-detail/MOSFET\_Diodes\-Incorporated\-DMP4015SK3\-13\_C513222\.html
- Part Type: MOSFETs
- Role: Reverse Polarity Protection
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410121619\_Diodes\-Incorporated\-DMP4015SK3\-13\_C513222\.pdf
- LCSC Part Number: C513222
- JLCPCB Part Class: Extended Part
- Package or Case Code: TO\-252\-2\_L6\.6\-W6\.1\-P4\.58\-LS9\.9\-TL
- Manufacturer Part Number: DMP4015SK3\-13

**Pins:**
- D [pin 2]
- G [pin 1]
- S [pin 3]

### SW1 — [SS\-12D10L5](https://flux.ai/lcsc/ss-12d10l5~58d7.md)

- Manufacturer Name: XKB Connectivity\(中国星坤\)
- Manufacturer Part Number: SS\-12D10L5
- Package or Case Code: SW\-TH\_SS\-12D10L5
- LCSC Part Number: C319012
- Contact Material: Copper alloy
- Role: Switching
- Current Rating: 3A
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2409302232\_XKB\-Connection\-SS\-12D10L5\_C319012\.pdf
- Role Details: 3 A rated through\-hole SPDT slide switch used as SPST master disconnect; rating provides margin over 1\.8 A peak\. Unused throw is intentionally no\-connect\.
- Throw Configuration: Single Pole Double Throw \(SPDT\)
- Operating Temperature: \-40\~\+85℃
- Functional Group: Master Switching
- Product Info Url: https://lcsc\.com/product\-detail/Toggle\-Switches\_XKB\-Enterprise\-SS\-12D10L5\_C319012\.html
- Part Type: Slide Switches
- Voltage Rating: 125V

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]

### TP1 — [S2761\-46R](https://flux.ai/silicon-yard/s2761-46r.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: Test Points
- Datasheet URL: https://www\.harwin\.com/api/download/datasheet/S2761\-46R
- Role Details: Top\-side Harwin S2761\-46R SMT test point for 5V\_RAW; 1\.8 x 1\.0 mm exposed pad footprint\.
- Manufacturer Name: Harwin Inc\.
- Manufacturer Part Number: S2761\-46R
- Role: Test Point
- Part Type: Test Point

**Pins:**
- \~ [pin 1]

### TP2 — [S2761\-46R](https://flux.ai/silicon-yard/s2761-46r.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.harwin\.com/api/download/datasheet/S2761\-46R
- Role: Test Point
- Manufacturer Name: Harwin Inc\.
- Manufacturer Part Number: S2761\-46R
- Functional Group: Test Points
- Role Details: Top\-side Harwin S2761\-46R SMT test point for 5V\_PROTECTED; 1\.8 x 1\.0 mm exposed pad footprint\.
- Part Type: Test Point

**Pins:**
- \~ [pin 1]

### TP3 — [S2761\-46R](https://flux.ai/silicon-yard/s2761-46r.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.harwin\.com/api/download/datasheet/S2761\-46R
- Role: Test Point
- Manufacturer Name: Harwin Inc\.
- Manufacturer Part Number: S2761\-46R
- Role Details: Top\-side Harwin S2761\-46R SMT test point for GND; 1\.8 x 1\.0 mm exposed pad footprint\.
- Functional Group: Test Points
- Part Type: Test Point

**Pins:**
- \~ [pin 1]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/3m4n73l/removable\-teddy\-speaker\-power\-module\~re](https://flux.ai/3m4n73l/removable-teddy-speaker-power-module~re).*

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*Generated from [https://flux\.ai/3m4n73l/removable\-teddy\-speaker\-power\-module\~re](https://flux.ai/3m4n73l/removable-teddy-speaker-power-module~re)*