Part Review and Datasheet Verification
Review all available part information (MPN, package, pin count, description, properties). If no datasheet URL is already set, search the web for the official datasheet and update the part's Datasheet property with the URL. Then cross-check the schematic symbol, footprint, and pin descriptions against the datasheet. Summarize key specs and flag any mismatches.
Worked for 3 mins 2 sec
I reviewed the part against the existing LCSC datasheet URL, so no datasheet search/update was needed. The part is mostly consistent, but I flagged missing terminal pin types/descriptions and a likely footprint issue: the pads appear to inherit SMD/default 0.7 mm hole settings even though the datasheet specifies a through-hole Ø0.8 mm terminal. Full details are in BH-AA-A1AJ020 Part Review.
Fix terminal metadata
Correct footprint pads
Run ERC/DRC
Show pin mapping
Created project doc "BH-AA-A1AJ020 Part Review"
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BH-AA-A1AJ020 Part Review
Review basis
- Project:
BH-AA-A1AJ020 - Existing project datasheet URL:
https://datasheet.lcsc.com/lcsc/2211291730_MYOUNG-BH-AA-A1AJ020_C5290181.pdf - Because the datasheet URL is already set, no web search/update was required. The part-project sync procedure requires using the datasheet as the single source of truth, exact pin numbers, exact terminal count matching, and explicit review of project metadata and terminal properties.
Datasheet-extracted key specs
Table
| Item | Datasheet / source result |
|---|---|
| Manufacturer part number | BH-AA-A1AJ020 |
| Manufacturer | MYOUNG / MYOUNG 美阳 |
| LCSC part number | C5290181 |
| Function | Single AA / size-5 cylindrical battery holder, button-and-strip battery connector |
| Mounting / package | Through-hole / DIP / plug-in, DIP 90° long-leg type |
| Pin/contact count | 2 PCB terminals |
| Battery type | 1 × AA / No. 5 cylindrical cell |
| Overall dimensions | 56.30 ± 1 mm × 16.75 ± 0.5 mm × 13.80 ± 0.5 mm |
| Terminal pitch | 51.55 ± 1 mm |
| Terminal diameter | Ø0.8 mm |
| Spring wire | Ø0.65 mm |
| Contact resistance | 30 mΩ max |
| Insulation resistance | 100 MΩ min |
| Dielectric withstand | 500 VAC, 1 s |
| Operating temperature | −10°C to +80°C |
| Materials | Black PP resin housing; brass contacts/terminals; 65C spring wire |
| Plating | Ni plating, ordering code J: Ni 100 µ″–120 µ″ |
| Current rating | Not specified in the available datasheet/product data |
Datasheet pin/contact table
Table
| Pin | Expected symbol label | Polarity | Function | Recommended Flux pin type | Short pin description |
|---|---|---|---|---|---|
| 1 | + / BAT+ | Positive | Positive supply output from installed AA cell | Power Out | Positive battery terminal |
| 2 | - / BAT- | Negative | Negative/return contact from installed AA cell | Ground or Power Out/Passive return | Negative battery terminal |
Project metadata review
Table
| Field | Current project value | Datasheet / expected value | Status |
|---|---|---|---|
| Manufacturer Part Number | BH-AA-A1AJ020 | BH-AA-A1AJ020 | OK |
| Manufacturer Name | MYOUNG | MYOUNG / MYOUNG 美阳 | OK |
| Part Type | Connectors | Battery connector / AA battery holder | Acceptable, but more specific text would improve searchability |
| Designator Prefix | BT | Battery-holder prefix is reasonable; generic connector prefix would be J | Acceptable |
| Datasheet URL | LCSC PDF set | Same PDF used for review | OK |
| Package or Case Code | Not set | Through-hole / DIP 90° long-leg, footprint BAT-TH_L56.3-W16.8-P51.55_BH-AA-A1AJ020 | Missing |
| LCSC Part Number | Not set as project property | C5290181 | Missing |
| Operating Temperature | Not set | −10°C to +80°C | Missing |
| Max Current | Not set | Not specified in datasheet | Do not populate from this datasheet |
Schematic symbol / terminals review
Current schematic has two Terminal components:
Table
| Symbol terminal | Current Pin Number | Current Pin Type | Expected Pin Number | Expected Pin Type | Status |
|---|---|---|---|---|---|
+ | 1 | Unspecified | 1 | Power Out | Pin number OK; pin type missing |
- | 2 | Unspecified | 2 | Ground or Passive/return | Pin number OK; pin type missing |
Findings:
- Terminal count matches datasheet: 2 terminals present vs. 2 datasheet contacts.
- Terminal labels match expected polarity labels
+and-. - Pin numbers match the datasheet polarity:
+is pin 1,-is pin 2. - Pin Type is currently
Unspecifiedon both terminals. This is the main symbol metadata mismatch. - Pin Description properties are not present; recommended:
Positive battery terminalandNegative battery terminal.
Footprint / layout review
Current layout contains pads
+ and - and a footprint asset BHAAA1AJ020.kicad_mod.Table
| Footprint item | Current observed data | Datasheet expected | Status |
|---|---|---|---|
| Pad count | 2 pads: +, - | 2 terminals | OK |
| Pad labels | +, - | +, - / BAT+, BAT− | OK |
| Pitch | Pad coordinate appears to encode 51.55 mm spacing (0.05155 m / 51.55 mm) | 51.55 ± 1 mm | Looks OK; verify visually if needed |
| Mount style | System default pad type reports SMD | Through-hole / DIP | Mismatch / needs correction |
| Hole size | System default hole size reports 0.7 mm | Terminal Ø0.8 mm | Mismatch: drill should be larger than terminal diameter |
| Pad shape | + rectangular, - circular | Polarity marking acceptable | OK |
| Body dimensions | Footprint name indicates L56.3-W16.8-P51.55 | 56.30 × 16.75 mm, pitch 51.55 mm | OK by naming/asset metadata |
| 3D model | BH-AA-A1AJ020.stp present | Mechanical holder body | OK |
Review checks
The selected review categories returned no listed violations at the time of review. However, the manual footprint audit found issues that may not be emitted by the current checks:
- Pads appear to inherit
padHoleType: SMDdespite the part being through-hole. - Default drill/hole size 0.7 mm is smaller than the Ø0.8 mm terminal specified in the datasheet.
Recommended fixes
- Set terminal
+properties:Pin Type:Power OutPin Description:Positive battery terminal
- Set terminal
-properties:Pin Type:Groundif this holder is normally used as system return, orPassiveif you prefer polarity-only connector semantics.Pin Description:Negative battery terminal
- Add project properties:
Package or Case Code:BAT-TH_L56.3-W16.8-P51.55_BH-AA-A1AJ020LCSC Part Number:C5290181Operating Temperature:-10°C to +80°C
- Update footprint pad rules so both pads are through-hole with a drill larger than Ø0.8 mm terminal diameter. A typical manufacturable choice would need to be selected according to fabrication tolerance, but the current 0.7 mm default is definitely too small for a Ø0.8 mm leg.
Summary
The part is mostly correct: MPN, manufacturer, datasheet URL, symbol polarity, pin count, and footprint naming all align with the datasheet. The main mismatches are missing terminal metadata and likely incorrect footprint pad hole configuration for a through-hole battery holder.
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