BZW04-376B STMicroelectronics TVS Diode (Bi-directional) (Diodes, Axial Diameter Horizontal Mounting) In Stock
STMicroelectronics BZW04-376B is a silicon TVS diode with 603 V clamp voltage and 800 mA peak pulse current in a DO-15 axial package. Minimum breakdown voltage of 418 V and 776 V maximum clamping voltage protect high-voltage AC/DC circuits. Available from stock worldwide with fast shipping.
- Manufacturer
- STMicroelectronics
- Package
- Diodes, Axial Diameter Horizontal Mounting
- Pin Count
- 2
- Lifecycle
- END OF LIFE
- Datasheet
- BZW04-376B Datasheet PDF
- Category
- TVS Diode (Bi-directional)
- Price
- From $0.1119(MOQ 1)
- Temp Range
- -55.0°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 603 V maximum clamp voltage with 418 V minimum breakdown voltage providing robust transient suppression for high-voltage industrial and AC line circuits
- 800 mA peak pulse current (Ipp) capability in a compact DO-204AC (DO-15) axial through-hole package enabling easy board integration
- UL Recognized construction with isolated case connection ensuring compliance with safety standards for equipment in regulated industrial and commercial markets
- Single-channel unidirectional configuration for precise overvoltage clamping on DC power rails and signal lines without reverse conduction interference
Applications
The BZW04-376B is designed for transient overvoltage protection on high-voltage AC power lines, motor drive outputs, and industrial control interfaces where surge events can exceed 400 V. Its UL-recognized rating makes it suitable for use in power supplies, relay-driven loads, and building automation equipment subject to regulatory certification requirements. The axial DO-15 package also fits legacy through-hole PCB designs in process control and energy metering systems where SMD alternatives are not practical.
Specifications
| Factory Lead Time | 25Weeks |
| YTEOL | 1 |
| Additional Feature | UL RECOGNIZED |
| Breakdown Voltage-Min | 418V |
| Case Connection | ISOLATED |
| Clamping Voltage-Max | 776V |
| Configuration | SINGLE, 1 CHANNEL |
| Diode Element Material | SILICON |
| Diode Type | TRANS VOLTAGE SUPPRESSOR DIODE |
| JEDEC-95 Code | DO-204AC |
| JESD-30 Code | O-PALF-W2 |
| JESD-609 Code | e3 |
| Non-rep Peak Rev Power Dis-Max | 400W |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | ROUND |
| Package Style | LONG FORM |
| Polarity | BIDIRECTIONAL |
| Power Dissipation-Max | 1.7W |
| Qualification Status | Not Qualified |
| Reference Standard | IEC-61000-4-2, 4-4, 4-5; MIL-STD-750; MIL-STD-883 |
| Rep Pk Reverse Voltage-Max | 376V |
| Reverse Current-Max | 1 µA |
| Reverse Test Voltage | 376V |
| Surface Mount | NO |
| Technology | AVALANCHE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | WIRE |
| Terminal Position | AXIAL |
| Package | Diodes, Axial Diameter Horizontal Mounting |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.50 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the clamping voltage of the BZW04-376B?
The BZW04-376B clamps transient overvoltages at a maximum of 776 V when conducting 800 mA peak pulse current, protecting downstream circuitry from damaging voltage spikes on high-voltage AC and DC rails above 418 V breakdown voltage.
What package does the BZW04-376B use?
The BZW04-376B is housed in a DO-204AC (DO-15) axial through-hole package with horizontal mounting orientation, making it straightforward to insert into standard PTH PCB pads and compatible with both hand soldering and automated wave soldering processes.
Is the BZW04-376B bidirectional or unidirectional?
The BZW04-376B is a unidirectional TVS diode in a single-channel isolated configuration, making it appropriate for protecting DC circuits and polarized power lines where transient spikes occur in one direction only.
What certifications does the BZW04-376B carry?
The BZW04-376B is UL Recognized, which facilitates incorporation into products requiring UL certification for North American markets such as industrial controls, HVAC systems, and commercial power distribution equipment.
What is the lead time and availability for the BZW04-376B?
The BZW04-376B has a factory lead time of approximately 25 weeks, so design engineers should plan procurement well in advance or source from authorized distributors holding buffer stock to avoid project delays on time-sensitive production schedules.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2900 | $0.29 |
| 100+ | $0.2300 | $23.00 |
| 250+ | $0.2170 | $54.25 |
| 500+ | $0.1970 | $98.50 |
| 2500+ | $0.1750 | $437.50 |
| 5000+ | $0.1119 | $559.60 |
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