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Vishay General Semiconductor - Diodes Division BZW04P11HE3/73
- Part No.:
- BZW04P11HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P11HE3/73.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,914
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Product details
Overview
BZW04P11HE3/73 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 11.1 V stand-off voltage (VWM), 12.4–14.3 V breakdown range (VBR at 1 mA), 18.2 V clamping voltage (VC) at 22 A peak pulse current, 400 W peak pulse power (10/1000 µs), and AEC-Q101 qualification - making it suitable for automotive sensor interface and industrial control bus protection.
For engineers reviewing the BZW04P11HE3/73 datasheet, BZW04P11HE3/73 pinout, BZW04P11HE3/73 application, or BZW04P11HE3/73 equivalent, key selection criteria include its bi-directional clamping behavior, DO-41 package compatibility, low leakage (<1 µA at VWM), and validated performance under repetitive 10/1000 µs surge waveforms in harsh environments.
Technical Context
This bi-directional TVS diode employs a glass-passivated silicon junction to achieve fast response time (<1 ns), low incremental surge resistance, and stable clamping across both polarities. Its electrical characteristics - including VBR, VC, and IPPM - are specified and tested identically in forward and reverse directions per device family documentation.
The BZW04P11HE3/73 operates across –55 °C to +175 °C junction temperature range and is rated for 1.5 W steady-state power dissipation on infinite heatsink at 75 °C. Its AEC-Q101 qualification confirms suitability for automotive applications requiring reliability under thermal cycling, mechanical shock, and humidity exposure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 11.1 V - Maximum continuous working voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR (Breakdown Voltage) | 12.4–14.3 V at 1 mA - Confirmed breakdown threshold range ensures reliable triggering during transients without premature conduction. |
| VC (Clamping Voltage) | 18.2 V at 22 A (10/1000 µs) - Limits downstream voltage stress to protect 20 V-rated ICs and MOSFETs during ESD or load dump events. |
| PPPM (Peak Pulse Power) | 400 W - Sustains high-energy surges typical of ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3/4 tests. |
| IPPM (Peak Pulse Current) | 22 A - Verified maximum non-repetitive surge current capability with defined 10/1000 µs waveform compliance. |
| TJmax | +175 °C - Enables operation in under-hood automotive and high-temperature industrial environments without derating. |
| Leakage (ID) | <1 µA at VWM - Minimizes standby power loss and avoids false triggering in low-current sensor circuits. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, molded epoxy case meeting UL 94 V-0 flammability rating. Matte tin-plated leads, solderable per J-STD-002 and JESD22-B102. No polarity marking - bi-directional symmetry confirmed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional transient shunt path | Either terminal serves as input/output; no cathode band - enables placement flexibility in PCB layout without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enables stable VBR and low leakage over lifetime, even under humidity and thermal cycling stress. |
| AEC-Q101 qualification | Validated reliability for automotive electronics including engine control modules, body controllers, and ADAS sensor interfaces. |
| 400 W peak pulse power (10/1000 µs) | Withstands repeated ISO 7637-2 load-dump and inductive-switching transients without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes protected circuit voltage overshoot, reducing risk of latch-up or gate oxide damage in downstream FETs and ICs. |
| RoHS-compliant, HE3 suffix | Meets JESD201 Class 2 whisker resistance and EU RoHS Directive 2011/65/EU requirements for automotive supply chains. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine compartments exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and ground to divert transients while preserving DC signal integrity. Use Value: Maintains <1 µA leakage at 11.1 V to avoid sensor offset error, and clamps to ≤18.2 V to safeguard 20 V op-amps and ADC inputs. |
Use Scenario: Shielding CAN_H/CAN_L differential pair against ESD and fast transients in factory automation PLCs and motor drives. IC Role / Device Role / Timing Role: Paired bi-directional TVS devices on each line to suppress common-mode surges without distorting 1 Mbps CAN signaling. Use Value: Sub-1 ns response ensures clamping occurs before CAN transceiver input stages are stressed; DO-41 footprint allows direct replacement of legacy TVS parts. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
|
Use Scenario: Secondary-side overvoltage suppression on 12 V DC outputs of wall adapters subject to lightning-induced surges via connected cables. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed after DC-DC converter output filter to limit transient energy delivered to USB peripherals. Use Value: 400 W rating handles IEC 61000-4-5 combination wave (10/700 µs) surges up to 4 kV; 175 °C TJmax prevents thermal runaway during sustained overload. |
Use Scenario: Front-end protection of Ethernet PHY and POTS line interfaces in VoIP gateways and DSLAMs deployed in lightning-prone regions. IC Role / Device Role / Timing Role: Bi-directional shunt element across line-to-ground to absorb longitudinal surges while maintaining signal bandwidth. Use Value: Low capacitance (typ. <100 pF at 0 V) preserves 100BASE-TX signal integrity; UL 94 V-0 molding ensures flame-retardant board-level safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | DO-214AA (SMB) package; 11 V VWM, 17.0 V VC at 23.3 A; same 400 W rating but lower VC/VBR ratio. | Surface-mount only; requires PCB rework for through-hole designs using BZW04P11HE3/73. | Select when space-constrained layouts demand SMT or higher surge current margin is needed. |
| P6KE12CA | DO-15 package; 12 V VWM, 19.9 V VC at 20.1 A; 600 W rating but larger footprint and higher leakage (≤5 µA). | Higher power handling but less precise clamping; not AEC-Q101 qualified. | Choose for cost-sensitive industrial power supplies where automotive qualification is unnecessary. |
Compared with SMBJ11CA and P6KE12CA, the BZW04P11HE3/73 offers AEC-Q101 validation and DO-41 through-hole compatibility - critical for serviceable automotive modules and legacy industrial equipment where leaded components remain standard.
Availability
BZW04P11HE3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, and telecom line card surge protection requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101-compliant sourcing.
Supply support for BZW04P11HE3/73 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, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The BZW04P series belongs to Vishay's TransZorb® TVS platform, engineered specifically for high-reliability transient suppression in automotive, industrial, and communications infrastructure where consistent clamping and long-term stability are mandatory.
FAQ
What is the polarity configuration of BZW04P11HE3/73?
The BZW04P11HE3/73 is a bi-directional TVS diode with symmetrical anode/cathode terminals and no polarity marking. Its electrical characteristics apply identically in both directions, enabling flexible PCB placement without orientation constraints - a key advantage over uni-directional variants like BZW04P11E3/73.
Is BZW04P11HE3/73 qualified for automotive use?
Yes, BZW04P11HE3/73 carries the HE3 suffix, confirming AEC-Q101 qualification per Vishay's documentation. This includes testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - validating its suitability for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage of BZW04P11HE3/73 under surge conditions?
The BZW04P11HE3/73 has a maximum clamping voltage (VC) of 18.2 V at 22 A peak pulse current with a 10/1000 µs waveform. This value is measured and guaranteed per Vishay's datasheet (Document Number: 88316), ensuring predictable overvoltage limiting for downstream 20 V-rated components.
How does BZW04P11HE3/73 differ from the uni-directional BZW04P11E3/73?
The BZW04P11HE3/73 is bi-directional with no cathode band and identical VBR, VC, and IPPM in both polarities; the uni-directional BZW04P11E3/73 has a cathode band, conducts only in reverse bias, and exhibits forward voltage drop (~3.5 V) under positive surge - making them functionally non-interchangeable without circuit redesign.
What packaging format is used for BZW04P11HE3/73?
BZW04P11HE3/73 is supplied in 13" diameter paper tape and reel packaging (package code 73), with 550 units per reel. The DO-41 (DO-204AL) axial package features matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
BZW04P11HE3/73 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):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 22A
- 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)
BZW04P11HE3/73 FAQ
1.How can I place an order for BZW04P11HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P11HE3/73 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 BZW04P11HE3/73 reliable?
The price and inventory of BZW04P11HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P11HE3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P11HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P11HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P11HE3/73?
BZW04P11HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P11HE3/73 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 BZW04P11HE3/73?
For technical support, including BZW04P11HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P11HE3/73 requirements.
6.How does Aetrix verify that BZW04P11HE3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P11HE3/73 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 BZW04P11HE3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P11HE3/73?
All BZW04P11HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P11HE3/73, 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 BZW04P11HE3/73 part is unused and in its original packaging.
Return procedure for BZW04P11HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P11HE3/73 Tags
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