# ES1J-AT

**Agertech** · Fast Recovery / High Efficiency Diodes · SMA

ES1J-AT from Agertech, in a SMA. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Cathode | passive | Cathode terminal of the surface-mount superfast recovery rectifier, part of a device rated 50 V to 600 V reverse voltage and 1 A average forward current. |
| 2 | Anode | passive | Anode terminal of the rectifier, paired with the cathode for the 1.0 A forward current rating at a maximum forward voltage of 1.70 V for ES1J-AT. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Agertech |
| Package | SMA |
| Category | Diodes |
| Pins | 2 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage | VRRM |  |  | 600 | V |  | 1 |
| Maximum RMS Voltage | VRMS |  |  | 420 | V |  | 1 |
| Maximum DC Blocking Voltage | VDC |  |  | 600 | V |  | 1 |
| Maximum Average Forward Rectified Current | IF(AV) |  |  | 1 | A | TC=100℃ | 1 |
| Peak Forward Surge Current | IFSM |  |  | 30 | A | 8.3 ms single half sine wave superimposed on rated load (JEDEC Method) | 1 |
| Maximum Forward Voltage | VF |  |  | 1.7 | V | at 1.0 A | 1 |
| Maximum DC Reverse Current | IR |  |  | 5 | uA | Rated DC Blocking Voltage, TA=25℃ | 1 |
| Maximum DC Reverse Current | IR |  |  | 100 | uA | Rated DC Blocking Voltage, TA=125℃ | 1 |
| Maximum Reverse Recovery Time | Trr |  |  | 35 | nS | IF=0.5A, IR=1A, Irr=0.25A | 1 |
| Typical Thermal Resistance | RθJA |  | 110 |  | ℃/W | P.C.B. mounted with 2.0" X 2.0" (5 X 5 cm) copper pad areas | 1 |
| Operating and Storage Temperature Range | TJ,TSTG | -55 |  | 150 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `ES1J-AT`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `es1j-at-etched.step` / `es1j-at-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `es1j-at.step` / `es1j-at.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Agertech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588942989058457600) (3 pp, sha256 `b74aef615cfb3e45`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/es1j-at-datasheet.pdf)