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Vishay General Semiconductor - Diodes Division BZW04P14BHE3/73
- Part No.:
- BZW04P14BHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P14BHE3/73.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
BZW04P14BHE3/73 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 13.6 V stand-off voltage (VWM), 22.5 V clamping voltage (VC) at 17.8 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the BZW04P14BHE3/73 datasheet, BZW04P14BHE3/73 pinout, BZW04P14BHE3/73 application, or BZW04P14BHE3/73 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) package, bi-directional symmetry, low clamping ratio (VC/VWM ≈ 1.66), and 175 °C maximum junction temperature for under-hood and high-reliability environments.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) specified between 15.2 V and 17.6 V at 1 mA test current. Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients.
The device complies with AEC-Q101 for automotive applications and exhibits a temperature coefficient of VBR at +0.086 %/°C. Its 1.5 W steady-state power dissipation and 175 °C max junction temperature support operation in thermally demanding PCB layouts without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.6 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below system rail. |
| VBR (min/max) | 15.2 V / 17.6 V at 1 mA - Ensures reliable, repeatable avalanche initiation across temperature and unit variation. |
| VC @ IPPM | 22.5 V at 17.8 A - Clamped voltage during 10/1000 μs surge; limits downstream IC stress to safe levels. |
| PPPM | 400 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out. |
| ID @ VWM | 1.0 μA - Ultra-low leakage at rated stand-off voltage; avoids signal distortion or bias shift in high-impedance circuits. |
| TJ max | 175 °C - Enables deployment in engine control units, motor drives, and other high-temperature automotive/industrial zones. |
| Package | DO-204AL (DO-41) - Industry-standard axial leaded package with matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, epoxy-molded case with glass-passivated chip. No polarity marking - bi-directional symmetry means either lead functions identically as anode or cathode depending on transient polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path terminal | Both leads serve identical roles; no cathode band - enables simplified layout and eliminates orientation errors during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock - required for ECUs and ADAS sensors. |
| Glass-passivated junction | Stable, low-noise avalanche behavior with minimal parameter drift over life; improves long-term clamping consistency vs. epoxy-passivated alternatives. |
| 400 W peak pulse power (10/1000 μs) | Withstands repeated surge events per IEC 61000-4-5 without degradation - suitable for industrial fieldbus and telecom line protection. |
| Low clamping ratio (VC/VWM = 1.66) | Minimizes voltage overshoot during clamping - critical for protecting 12 V–15 V logic interfaces and analog front-ends. |
| RoHS-compliant HE3 suffix | JESD201 Class 2 whisker resistance and UL 94 V-0 molding compound - meets automotive and industrial safety and environmental compliance mandates. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle subsystems. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across signal pair or supply rail to shunt transients before they reach sensitive ASIC inputs. Use Value: Prevents latch-up or permanent damage to microcontrollers and transceivers under ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-2 ESD events. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against induced surges from relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Standoff-clamp TVS mounted at connector entry point to divert >1 kV transients away from optocoupler and MCU input stages. Use Value: Maintains functional safety integrity by limiting transient voltage to <23 V, well below 30 V absolute maximum ratings of common industrial interface ICs. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-side surge protection on Ethernet PHY power rails and RS-485 data lines in network switches and base stations. IC Role / Device Role / Timing Role: Fast-response bi-directional clamp absorbing differential-mode surges while preserving signal integrity up to 10 Mbps. Use Value: Achieves IEC 61000-4-5 Level 3 (2 kV) immunity without adding series impedance or capacitance that degrades signal rise/fall times. |
Use Scenario: Input-stage overvoltage protection in AC-DC adapters for smart home devices, guarding against mains transients and capacitor discharge spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor to clamp line-to-ground surges before they propagate into primary-side controller ICs. Use Value: Enables compact design with single-device protection - eliminates need for MOV+gas tube cascades while meeting UL 62368-1 transient requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14CA | Same 14 V nominal standoff, but SMB package (SMD); lower IPPM (22.5 A) and VC (23.2 V); 600 W PPPM rating. | Preferred for space-constrained PCBs; requires rework for through-hole replacement; thermal performance differs due to SMD vs. axial lead conduction. | Select SMBJ14CA only if board redesign accommodates SMD footprint and thermal management is verified. |
| P6KE15CA | Higher VWM (15 V), higher VC (24.4 V), same DO-41 package; 600 W PPPM; no AEC-Q101 qualification. | Suitable for commercial/industrial use where automotive qualification is not required; less precise clamping margin for 12 V systems. | Choose P6KE15CA for cost-sensitive non-automotive designs where 15 V VWM provides adequate margin over 12 V rails. |
Compared with BZW04P14BHE3/73, SMBJ14CA offers higher surge power in a smaller footprint but lacks AEC-Q101 validation and axial thermal path, while P6KE15CA matches the package and cost but trades automotive reliability and tighter clamping for broader commercial availability.
Availability
BZW04P14BHE3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZW04P14BHE3/73 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting AEC-Q101-compliant automotive, industrial, and telecom applications where failure is not an option.
FAQ
What is the clamping voltage of BZW04P14BHE3/73 and how does it protect downstream circuitry?
The BZW04P14BHE3/73 has a maximum clamping voltage (VC) of 22.5 V at 17.8 A peak pulse current (10/1000 μs waveform). This value represents the upper voltage limit imposed on protected lines during surge events. By holding the transient voltage to ≤22.5 V, the BZW04P14BHE3/73 ensures that connected ICs - such as CAN transceivers or microcontroller GPIOs rated for 30 V absolute maximum - remain within safe operating limits, preventing damage or malfunction.
Is BZW04P14BHE3/73 suitable for automotive applications?
Yes, BZW04P14BHE3/73 is AEC-Q101 qualified and carries the HE3 suffix, indicating compliance with JESD201 Class 2 whisker testing and RoHS directives. Its 175 °C maximum junction temperature, stable VBR temperature coefficient (+0.086 %/°C), and validated performance across thermal cycling and humidity tests make it appropriate for under-hood ECUs, body control modules, and ADAS sensor interfaces.
How does the bi-directional nature of BZW04P14BHE3/73 affect its placement in circuit design?
The bi-directional architecture of BZW04P14BHE3/73 means it functions identically regardless of polarity - no cathode marking is present, and either lead may be connected to either side of a differential line or across a supply rail. This simplifies PCB layout, eliminates orientation-dependent assembly errors, and enables symmetric protection of AC-coupled signals like RS-485 or CAN without external polarity considerations.
What is the significance of the "HE3" suffix in BZW04P14BHE3/73?
The "HE3" suffix in BZW04P14BHE3/73 denotes two critical qualifications: "H" indicates AEC-Q101 compliance for automotive use, and "E3" specifies RoHS-compliant matte tin plating meeting JESD201 Class 2 whisker resistance. Together, they confirm the part meets stringent automotive reliability and environmental standards - distinguishing it from commercial-grade "E3" variants lacking AEC-Q101 validation.
Can BZW04P14BHE3/73 replace uni-directional TVS diodes in existing designs?
BZW04P14BHE3/73 can replace uni-directional TVS diodes only in circuits where bidirectional protection is functionally required or acceptable - such as across AC signal lines or ungrounded DC rails. In uni-directional applications (e.g., DC power input with defined polarity), using BZW04P14BHE3/73 introduces no harm but offers no advantage over a matched uni-directional part like BZW04P14HE3/73; design review must confirm absence of forward-bias conflicts in rectifier or regulator paths.
BZW04P14BHE3/73 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 17.8A
- 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)
BZW04P14BHE3/73 FAQ
1.How can I place an order for BZW04P14BHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P14BHE3/73 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 BZW04P14BHE3/73 reliable?
The price and inventory of BZW04P14BHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P14BHE3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P14BHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P14BHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P14BHE3/73?
BZW04P14BHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P14BHE3/73 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 BZW04P14BHE3/73?
For technical support, including BZW04P14BHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P14BHE3/73 requirements.
6.How does Aetrix verify that BZW04P14BHE3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P14BHE3/73 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 BZW04P14BHE3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P14BHE3/73?
All BZW04P14BHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P14BHE3/73, 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 BZW04P14BHE3/73 part is unused and in its original packaging.
Return procedure for BZW04P14BHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P14BHE3/73 Tags
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