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Vishay General Semiconductor - Diodes Division BZW04P26HE3/73
- Part No.:
- BZW04P26HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P26HE3/73.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,625
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Product details
Overview
BZW04P26HE3/73 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 25.6 V stand-off voltage (VWM), 41.5 V maximum clamping voltage (VC) at 9.6 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the BZW04P26HE3/73 datasheet, BZW04P26HE3/73 pinout, BZW04P26HE3/73 application, or BZW04P26HE3/73 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) package compatibility, bi-directional surge handling, and verified clamping performance under repetitive transients induced by inductive switching or ESD events.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 28.5–33.0 V (min/max) under 1 mA test current. Its low incremental surge resistance and fast response time ensure effective suppression of fast-rising transients such as ESD (IEC 61000-4-2) and EFT (IEC 61000-4-4).
Thermally rated for junction temperatures from –55 °C to +175 °C, it supports high-reliability operation in under-hood automotive environments and industrial control cabinets. The device is RoHS-compliant and meets JESD201 class 2 whisker resistance due to its HE3 suffix designation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min/max) | 28.5 V / 33.0 V at 1 mA - Confirmed breakdown range ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 41.5 V at 9.6 A - Clamping voltage limits downstream IC stress during 10/1000 μs surges; critical for MOSFET/gate driver protection. |
| PPPM | 400 W - Peak pulse power rating with 10/1000 μs waveform; enables protection against lightning-induced surges per IEC 61000-4-5. |
| ID @ VWM | 1.0 μA - Ultra-low reverse leakage at stand-off voltage preserves signal integrity in high-impedance sensor lines. |
| TJ max. | +175 °C - High junction temperature rating supports placement near heat sources in engine control units and motor drives. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock per AEC standard. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bi-directional) | Surge conduction path | No polarity marking; symmetrical terminals conduct in either direction during overvoltage - eliminates orientation errors in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| 400 W peak pulse power (10/1000 μs) | Supports protection against severe transients like ISO 7637-2 Pulse 1/2a/3a in 12 V automotive systems. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications requiring zero-defect field performance and extended temperature operation. |
| Bi-directional configuration | Protects AC-coupled or floating signal lines (e.g., CAN, RS-485, encoder outputs) without polarity constraints. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes voltage overshoot during clamping - critical for safeguarding 3.3 V or 5 V logic interfaces. |
Applications
| Automotive Sensor Protection | Industrial I/O Module Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bi-directional TVS clamps both positive and negative transients on ratiometric sensor outputs without affecting DC accuracy. Use Value: Maintains signal fidelity under ISO 16750-2 load dump (up to 35 V) while limiting clamp voltage to 41.5 V - within safe margin of 45 V-rated op-amps. |
Use Scenario: Shielding digital input channels of PLC modules from inductive kickback when controlling solenoids or relays. IC Role / Device Role / Timing Role: Fast-response TVS diverts surge energy away from microcontroller GPIO pins and optocoupler inputs. Use Value: 9.6 A IPPM rating handles 100 V/1 A inductive spikes per IEC 61000-4-4 Level 4, preventing latch-up in 3.3 V logic circuits. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding RS-485 transceiver bus lines in base station backhaul equipment subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bi-directional clamping protects differential pair against common-mode transients up to ±30 kV ESD contact discharge. Use Value: 41.5 V VC ensures transceiver ICs (e.g., SN65HVD72) remain within absolute maximum ratings during IEC 61000-4-5 4 kV surge tests. |
Use Scenario: Suppressing commutation spikes on BLDC motor gate drive lines in smart washing machines and HVAC fans. IC Role / Device Role / Timing Role: TVS placed across half-bridge MOSFETs absorbs flyback energy during PWM switching transitions. Use Value: 400 W PPPM rating sustains repeated 10/1000 μs pulses from motor inductance - extends MOSFET lifetime and reduces EMI emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26CA | Same DO-214AA package; slightly higher VWM (22.0 V) and VC (42.1 V); lower PPPM (600 W but larger footprint). | Preferred where board space allows SMC/SMB packages and higher surge margin is needed. | Select SMBJ26CA only if layout accommodates wider body and higher thermal mass is required for sustained surge duty cycles. |
| P6KE27CA | DO-15 package; same VWM (23.1 V) and VC (45.7 V); lower PPPM (600 W) but slower response due to higher junction capacitance (~200 pF vs. ~50 pF). | Suitable for lower-speed power rail protection where capacitance is not critical (e.g., 12 V supply rails). | Choose P6KE27CA for cost-sensitive non-high-speed applications; avoid in data line or sensor signal paths due to excessive capacitance. |
Compared with SMBJ26CA and P6KE27CA, BZW04P26HE3/73 offers superior board-level integration via DO-41 footprint, AEC-Q101 qualification for automotive use, and optimized low-capacitance clamping ideal for signal integrity–sensitive interfaces.
Availability
BZW04P26HE3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial automation, and telecom infrastructure requiring stable component supply with full traceability and long-lifecycle support.
Supply support for BZW04P26HE3/73 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The BZW04P series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and communications systems demanding AEC-Q101 compliance and repeatable clamping performance.
FAQ
What is the clamping voltage of BZW04P26HE3/73 under maximum surge conditions?
The BZW04P26HE3/73 has a maximum clamping voltage (VC) of 41.5 V at 9.6 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value ensures protected circuits - such as 3.3 V or 5 V microcontrollers - remain within safe operating limits during standardized surge events defined in IEC 61000-4-5.
Is BZW04P26HE3/73 suitable for automotive applications?
Yes, BZW04P26HE3/73 is AEC-Q101 qualified (indicated by the HE3 suffix) and rated for junction temperatures up to +175 °C. It is validated for automotive use cases including engine control unit sensor protection, infotainment system I/O lines, and body electronics exposed to load dump and ESD per ISO 10605.
How does the bi-directional design of BZW04P26HE3/73 affect its PCB layout?
The bi-directional nature of BZW04P26HE3/73 means no cathode marking or polarity orientation is required - both leads are functionally identical. This simplifies PCB layout, eliminates risk of reverse installation, and enables direct placement across AC-coupled or floating differential signals like CAN bus or RS-485 lines.
What is the significance of the HE3 suffix in BZW04P26HE3/73?
The HE3 suffix denotes that BZW04P26HE3/73 is RoHS-compliant and AEC-Q101 qualified, with matte tin-plated leads meeting JESD201 class 2 whisker resistance. It distinguishes this automotive-grade variant from commercial-grade E3-suffix parts and confirms enhanced reliability testing for automotive deployment.
Can BZW04P26HE3/73 be used to protect high-speed data lines?
Yes - BZW04P26HE3/73 exhibits low junction capacitance (~50 pF at 0 V), making it suitable for protecting moderate-speed data lines such as RS-485, LIN, or analog sensor outputs. However, for USB 2.0 or HDMI, lower-capacitance TVS arrays are recommended; BZW04P26HE3/73 is best applied where bandwidth ≤ 10 MHz is sufficient.
BZW04P26HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.5V
- Current - Peak Pulse (10/1000µs):
- 9.6A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04P26HE3/73 FAQ
1.How can I place an order for BZW04P26HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P26HE3/73 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BZW04P26HE3/73 reliable?
The price and inventory of BZW04P26HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P26HE3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P26HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P26HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P26HE3/73?
BZW04P26HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P26HE3/73 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BZW04P26HE3/73?
For technical support, including BZW04P26HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P26HE3/73 requirements.
6.How does Aetrix verify that BZW04P26HE3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P26HE3/73 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BZW04P26HE3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P26HE3/73?
All BZW04P26HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P26HE3/73, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BZW04P26HE3/73 part is unused and in its original packaging.
Return procedure for BZW04P26HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P26HE3/73 Tags
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