myMectronic
myMectronic

A Premier B2B Part Search

ROHM RB421DFHT146 Automotive Schottky Diode

The RB421DFH is a high-reliability Schottky Barrier Diode qualified for AEC-Q101 standards, featuring ultra-low forward voltage and a maximum reverse voltage of 40V. Suitable for small current rectification applications, it comes in a compact SOT-346 package with dimensions optimized for space-constrained designs. This diode boasts fast switching characteristics, low reverse leakage current of 30pA at VR 10V, and a capacitance of 6pF at 10V and 1MHz frequency. It's ideal for automotive and industrial power circuitry where reliable low-voltage rectification is required.

Authorized Distributors
Source:DigiKey
Part No:RB421DFHT146
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.14253
Buy/RFQ:
Part No:RB421DFHT146
Stock:1929
Inv Date:06-10-2026
Price: Unit price: $0.75
Buy/RFQ:

ROHM RB421DFHT146 Automotive Schottky Diode Specifications:

  • Maximum repetitive peak reverse voltage VRM: 40 V
  • Reverse voltage VR: 40 V
  • Average rectified forward current: 100 mA
  • Peak forward surge current: 1 A
  • Junction temperature: -125°C
  • Storage temperature: -40°C to 125°C
  • Forward voltage: Typical 0.3V at 10mA
  • Reverse current IR: Max 30 pA at VR=10V
  • Capacitance between terminals: Max 6 pF at VR=10V and f=1MHz
  • Package: SOT-346 (SC-59) small mold
  • Dimensions: Length 3.9 mm, Width 2.8 mm, Height 1.55 mm (typical)
  • Taping: Embossed tape reel, 180mm, width 8mm, basic unit 3000 pcs
  • Material: Glass epoxy substrate, copper-covered surface

Buy the ROHM RB421DFH – Reliable Schottky Diode for Industrial Applications

Purchase the ROHM RB421DFH now for your power management needs. This high-reliability Schottky diode offers a low forward voltage and excellent reverse voltage capacity, making it perfect for automotive, industrial, and power supply circuits. Its small SOT-346 package enables space-efficient designs with long-lasting durability. Order online today and ensure your electronic projects benefit from proven quality and reliable performance. Designed for precision, it’s your ideal choice for small current rectification where reliability is critical.

Get ROHM RB421DFH today—built for high reliability in automotive and industrial rectification.

Frequently Asked Questions

Where can I buy ROHM RB421DFHT146?

You can click on the BUY or RFQ button to purchase RB421DFHT146 from an authorized ROHM distributor.

How do I troubleshoot issues or seek technical support for part RB421DFHT146?

You can download the RB421DFHT146 datasheet or visit the ROHM website for support.

Who is the manufacturer of RB421DFHT146?

ROHM

ROHM Part List

Browse and search other ROHM parts, locate datasheets and stock

Sponsored by