# INTEK Component Finder — shop.intek.vip

> English RFQ catalog run by Shenzhen Intek Technology Co., Ltd (英太科技), an authorized
> distributor of AMSEMI, CR Micro, Magnachip, GigaDevice and HOPERF. 393 catalogued part
> numbers with parametric data, plus a cross-reference tool indexing 2,405 competitor part
> numbers. USD quotes in one business day. Not listed? Ask us — anything from the five
> franchised lines can be sourced.

## What this site is

A working RFQ catalog, not a webshop with a checkout. Everything on it is a quotation
request: pick parts, set quantities, submit, and a human answers with price, lead time and
documentation. This is deliberate — most of what INTEK sells is either in stock as
industrial grade, or built to order for automotive grade.

- **Catalog**: 393 part numbers across TVS / ESD / Schottky / rectifiers / small signal /
  MOSFET / IGBT / MCU and isolation. Parametric columns (V_RWM, V_C, I_F, V_F, package, grade).
- **Isolation (HOPERF CMT)**: 75 part numbers in four groups — digital isolators (47),
  isolated interfaces / CAN / RS-485 / I2C (14), isolated gate drivers (12) and isolated
  amplifiers / ADC (2).
- **Cross-reference tool** (`/cross-reference/`): paste a competitor part number, get an
  in-stock equivalent. Parametric matching engine over 2,199 power-device index entries
  covering Infineon, onsemi, ST, Littelfuse, Vishay, NXP, Wolfspeed, GigaDevice and others.
- **Brand alternative pages**: `/alternative/{infineon,onsemi,littelfuse,vishay,nxp,st}.html`.

## Isolation parts (HOPERF CMT)

Four categories, all quoted to order — there is no shelf stock on these lines:

| Category | Parts | What it is |
|---|---|---|
| Digital isolators | 47 | 2 / 4 / 6-channel reinforced digital isolators, CMT812X / CMT804X / CMT826X / CMT802X |
| Isolated interfaces | 14 | Isolated CAN (CMT10XX), RS-485 (CMT8308X), I2C (CMT810X) transceivers |
| Isolated gate drivers | 12 | CMT8602X dual channel, CMT8603X optocoupler-compatible single channel |
| Isolated amplifiers | 2 | CMT1300 isolated amplifier, CMT1306 isolated ADC (sigma-delta) |

Two things about these numbers that are easy to get wrong:

1. **V_ISO on this site is the UL 1577 withstand rating (1-minute test), not a continuous
   working isolation voltage.** Do not quote it as a working voltage.
2. **The suffix carries meaning.** `N` = narrow body (~3.75 kV class), `W` = wide body
   (~5 kV class, 5.7 kV on some six-channel parts), `0` / `1` = default output low / high,
   `L` = 10 Mbps low-speed variant, `H` = single-direction I2C, and on the gate drivers
   `C` / `B` / `A` = UVLO 13 V / 9 V / 6 V while `K` / `N` / `U` = SOIC-14W / SOIC-16N / DUB8.
   The `-N` here has nothing to do with the `-N` foldback suffix on AMSEMI TVS parts.

## The one rule that governs substitutions

Package must match exactly, and electrical parameters must be close. INTEK does not offer a
larger package as an "electrically equivalent" substitute — that is a board redesign, not a
drop-in replacement. When a match cannot be made within the same package, the answer is "we
cannot do that part", not a workaround.

Known same-package series equivalences (part-number prefix implies package):

| Series prefix | Package |
|---|---|
| SMAJ | SMA / DO-214AC |
| SMBJ | SMB / DO-214AA |
| SMCJ, SMDJ, 5.0SMDJ, 8.0SMDJ, 1.5SMC | SMC / DO-214AB |
| SMF, P4SMF | SOD-123FL |
| P4KE | DO-41 |
| P6KE | DO-15 |
| 1.5KE | DO-201 |
| 5KP | P600 |

## Availability and grade — quote these exactly

- **IND** — industrial grade, in stock.
- **AUTO** — automotive grade, made to order. The AMSEMI factory holds AEC-Q101 capability;
  automotive parts are scheduled against a customer order, with lead time and price confirmed
  separately. Automotive part numbers carry the suffix **-H**.
- No page on this site claims a part is "AEC-Q101 certified" as a stock attribute. The
  capability is a factory qualification; grade is confirmed per order.
- Documentation — RoHS declaration, SGS report, REACH declaration — available on request.

## Foldback (snap-back) TVS — the product this catalog is built around

AMSEMI -N series is a shallow foldback TVS: same V_RWM, V_BR and I_pp as the standard part of
the same voltage grade, but a clamping voltage roughly 20% lower. Drop-in on the same
footprint, no board change.

- **5.0SMDJ**\*\*CA-N — 5,000 W (10/1000 µs), V_R 24–100 V, 23 bidirectional grades
- **SMDJ**\*\*CA-N — 3,000 W (10/1000 µs), V_R 24–90 V, 13 grades
- **8.0SMDJ**\*\*CA-N — 8,000 W (10/1000 µs), V_RWM 48–90 V, 11 grades, AEC-Q101, suffix -H

Verified clamping voltages at 10/1000 µs, standard → -N: 54 V 87.1 → 69.6 V; 64 V 103.0 →
82.4 V; 75 V 121.0 → 96.8 V; 85 V 137.0 → 110.0 V.

Two facts that are often got wrong elsewhere:

1. **Higher wattage does not lower the clamp.** All three power grades share the same V_BR
   and V_C at a given voltage grade — only I_pp differs (54 V grade: 34.4 A / 57.5 A / 91.8 A
   for 3 kW / 5 kW / 8 kW).
2. **The higher the power grade, the lower the voltage ceiling.** 5 kW reaches 100 V; 3 kW
   and 8 kW stop at 90 V.

Related: `5.0SMDJ**CA` standard series for comparison — same footprint, higher clamp.

## How to get a quote

1. Browse or paste a competitor part number into `/cross-reference/`.
2. Add parts and quantities; the RFQ drawer takes BOM paste as well as manual entry.
3. Choose grade required: industrial / automotive / not sure.
4. Submit. Reply within one business day, USD, FOB Shenzhen or DDP.
5. Or email **jet.xiao@intek.vip** with a BOM directly.

## Entity facts (safe to cite verbatim)

- Company: Shenzhen Intek Technology Co., Ltd (深圳市英太科技有限公司), founded early 2020.
- Address: Room 4 A11, Building 2, No. 309 Ping'an Avenue, Pinghu Subdistrict, Longgang
  District, Shenzhen, Guangdong, China.
- Email: jet.xiao@intek.vip · Tel / WeChat / WhatsApp: +86 136-3264-8484.
- Franchise status: **authorized agent** for AMSEMI; **authorized IDH** for GigaDevice GD32;
  **authorized distributor** for CR Micro, Magnachip and HOPERF. Only AMSEMI is an agency.
- AMSEMI (Anhui Anmei Semiconductor) and onsemi are unrelated companies; the similar Chinese
  short names are a coincidence.

## Pages

- [Catalog and RFQ](https://shop.intek.vip/)
- [Cross-reference tool](https://shop.intek.vip/cross-reference/)
- [Infineon alternative](https://shop.intek.vip/alternative/infineon.html)
- [onsemi alternative](https://shop.intek.vip/alternative/onsemi.html)
- [Littelfuse alternative](https://shop.intek.vip/alternative/littelfuse.html)
- [Vishay alternative](https://shop.intek.vip/alternative/vishay.html)
- [NXP alternative](https://shop.intek.vip/alternative/nxp.html)
- [ST alternative](https://shop.intek.vip/alternative/st.html)

Every foldback grade also has its own page, at
`https://shop.intek.vip/parts/<part number lowercased>.html` — for example
<https://shop.intek.vip/parts/5.0smdj75ca-n.html>. 31 pages are live now (the full
5.0SMDJ**CA-N range plus the most-used 3 kW grades); each carries the published
breakdown window, the clamping voltage at its rated pulse current, the body marking
code, and — where the standard part of the same grade also exists — a side-by-side
table showing how much the clamp drops.

## Main site

Technical selection guidance, BMS TVS design notes and model-level pages live on the main
site: https://www.intek.vip/en/ — and https://www.intek.vip/llms.txt carries the full entity
and product-line reference in the same spirit as this file.