# BL8506-30NRM

**BL Shanghai Belling** · Supervisor and Reset ICs · SOT-23

BL8506-30NRM from BL Shanghai Belling, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VOUT | output | Voltage detection output. N-channel open-drain, active-low: pulled low when VDD falls below -VDET (typ. 3.0V for the -30 option); released (Hi-Z) above +VDET = -VDET + VHYS. Requires an external pull-up resistor (typ. 470kΩ) to VDD or another rail. Output rated to 12V max, 70mA max sink; propagation delay TPLH ≤ 20µs. |
| 2 | VSS | power_in | Ground reference pin (0V). |
| 3 | VDD | power_in | Supply and monitored input voltage. Recommended operating range 0.7V-10V (absolute max 10V, min VDDL ≈ 0.5V). The internal comparator senses VDD against the trimmed reference to generate the detection output. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |

## Ordering variants

- `BL8506-30NRM`
- `BL8506-30NRMCRM`
- `BL8506-30NRMNRO`
- `BL8506-30NRMCRO`
- `BL8506-30NRMNRN`
- `BL8506-30NRMCRN`
- `BL8506-30NRMNSM`
- `BL8506-30NRMCSM`
- `BL8506-30NRMNT`
- `BL8506-30NRMCT`

## CAD (KiCad official)

- Symbol: `BL8506-30NRM`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bl8506-30nrm-etched.step` / `bl8506-30nrm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bl8506-30nrm.step` / `bl8506-30nrm.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [BL Shanghai Belling datasheet](docs/bl8506-30nrm-datasheet.pdf) (None pp, sha256 `7579ec6f6d30b5a6`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/bl8506-30nrm-datasheet.pdf)