BD433
- Part number
- BD433
- Manufacturer
- STMicroelectronics
- Package
- TO-126
- Status
- Active
- Stock
- Available / RFQ
- Price
- $1.90
- Year / date code
- 2025
View on SJ Chip · Request a quote
Product Overview
BD433 (STMicroelectronics, TO-126) — 4A, 22V, NPN, Si, POWER TRANSISTOR, TO-126, PLASTIC PACKAGE-3
Technical Specifications
- Part Number
- BD433
- Manufacturer
- STMicroelectronics
- Series
- BD433
- Package / Case
- TO-126
- Package Family
- TO
- Pin / Ball Count (from marking)
- 126
- Lifecycle Status
- Active
- Category
- Electronic Component
- Mounting Type
- Surface Mount (SMT)
Electrical Characteristics
- Device Class
- Electronic component — see manufacturer datasheet
- Key Ratings
- Confirm electrical limits for BD433 before design-in
- Package Constraint
- TO-126 mechanical outline and pinout must match the PCB
- Substitution
- Nearby MPNs require engineering validation — not automatic drop-ins
Package Information
- Package
- TO-126
- Package Family
- TO
- Mounting
- Surface Mount (SMT)
- Terminal Count (parsed)
- 126
- Outline Note
- Package marking on this page is for sourcing reference. Confirm body size, pitch, and land pattern from the manufacturer datasheet before layout.
Applications
BD433 is sourced for OEM/EMS electronic assemblies. Typical use depends on the manufacturer datasheet for STMicroelectronics. Confirm electrical ratings, TO-126 mechanics, and AVL notes before design-in or substitution. SJ Chip provides inventory checks and RFQ support for production and shortage fills.
Procurement notes
Confirm the full ordering code, package (TO-126), and quantity on RFQ. SJ Chip replies with stock, condition, and lead time. Nearby MPNs are for evaluation only.
Potential Alternatives (TO-126)
- BD682 · TO-126
- 304074 · TO-126
- MJE340 · TO-126
- MJE3440 · TO-126
- 13819 · TO-126
- 79667 · TO-126
- 73836 · TO-126
- ST13003-K · TO-126
- BD440 · TO-126
- 2N5194 · TO-126
- 13820 · TO-126
- 2N4920 · TO-126
FAQ
Where to buy BD433?
You can request BD433 from SJ Chip via the RFQ form on this page or the site-wide RFQ. We confirm manufacturer (STMicroelectronics), package, quantity, and lead time on the quotation.
Is BD433 available?
Listed inventory shows 39,455 pcs. Lot, date code, and shippable quantity are confirmed on RFQ — treat the listing as availability to quote, not a guaranteed cart ship.
What is the package of BD433?
The sourcing listing shows package TO-126. Always verify body size, pitch, and land pattern against the STMicroelectronics datasheet before PCB layout.
What are alternatives to BD433?
Potential alternatives include BD682, 304074, MJE340 and other same-series or same-package listings — all require datasheet and pinout checks. These are similar stock for evaluation, not automatic drop-in replacements.
Sourcing information
| Part Number | BD433 |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-126 |
| Description | 4A, 22V, NPN, Si, POWER TRANSISTOR, TO-126, PLASTIC PACKAGE-3 |
| Availability | Listed inventory: 39,455 pcs — confirm lot, date code, and quantity on RFQ |
| RFQ | Submit the full part number and quantity through the RFQ form |
| Lead Time | Lead time is confirmed on the quotation after RFQ. In-stock conventional lots often ship in 3–5 working days from Hong Kong; special, allocation, or obsolete lines are quoted separately. |
| Condition | Condition is stated on the quotation/PI (new, surplus, or EOL). Lots are inspected before shipment. |