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Vishay General Semiconductor - Diodes Division BZW04P13B-E3/73
- Part No.:
- BZW04P13B-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P13B-E3/73.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,744
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Product details
Overview
BZW04P13B-E3/73 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 12.8 V stand-off voltage (VWM), 14.3–16.5 V breakdown voltage (VBR) at 1 mA, 21.2 V clamping voltage (VC) at 19.0 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) capability with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the BZW04P13B-E3/73 datasheet, BZW04P13B-E3/73 pinout, BZW04P13B-E3/73 application, or BZW04P13B-E3/73 equivalent, key selection criteria include its DO-204AL (DO-41) axial package, AEC-Q101 qualification, bi-directional symmetry, low 1.0 μA max reverse leakage at VWM, and temperature coefficient of 0.084 %/°C - critical for stable clamping in wide-temperature automotive environments.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, enabling protection against positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, while the 10/1000 μs waveform rating reflects standardized lightning/surge immunity testing per ANSI/IEEE C62.35.
The device is rated for continuous power dissipation of 1.5 W on an infinite heatsink at 75 °C lead temperature and supports operating junction temperatures from –55 °C to +175 °C. It is not intended for rectification; its primary function is fast-clamp transient suppression, with response time under 1 ns and no DC forward conduction requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 12.8 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown |
| VBR (min/max) | 14.3 V / 16.5 V at 1 mA - tight breakdown window ensures predictable turn-on across production lots |
| VC @ IPPM | 21.2 V at 19.0 A - clamping voltage during 10/1000 μs surge; limits protected circuit stress to ≤21.2 V |
| PPPM | 400 W - peak pulse power handling per 10/1000 μs waveform; validates compliance with IEC 61000-4-5 Level 3/4 |
| ID @ VWM | 1.0 μA max - ultra-low leakage preserves signal integrity in high-impedance sensor lines |
| TJ Range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial control environments |
| Temp Coeff | 0.084 %/°C - quantifies VBR drift with temperature; supports accurate worst-case clamping modeling |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads, solderable per J-STD-002 and JESD22-B102. Bi-directional types have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Bi-directional terminals - either end serves as anode or cathode depending on transient polarity; no color band or marking required |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - suitable for engine control, ADAS, and body electronics |
| Glass passivated junction | Ensures long-term parameter stability and low leakage drift over life, even under thermal stress and humidity |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive subsystems |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes voltage overshoot during transients - critical for protecting 12 V logic and analog front-ends |
| RoHS-compliant, JESD201 Class 1A whisker tested | E3 suffix confirms lead-free matte tin plating with verified resistance to tin whisker growth in high-reliability assemblies |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Standby clamping device placed across signal line and ground - activates only during >12.8 V transients, remaining invisible during normal operation. Use Value: Limits transient voltage to ≤21.2 V, preventing damage to downstream op-amps, ADC inputs, and microcontroller GPIOs rated for 16 V absolute max. | Use Scenario: Shielding digital input modules in programmable logic controllers from inductive switching surges caused by relay coils and solenoids. IC Role / Device Role / Timing Role: Parallel-connected transient shunt on 24 V DC input lines - clamps energy within nanoseconds before it reaches isolation barriers or level-shifters. Use Value: Withstands repetitive 400 W surges at 0.01% duty cycle, ensuring long service life in factory automation environments with frequent actuator switching. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs in base station backhaul equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-line bi-directional clamp on differential bus lines - symmetric response eliminates need for dual uni-directional devices. Use Value: 21.2 V clamping voltage preserves signal integrity on 3.3 V or 5 V logic rails while handling ±1 kV/500 Ω IEC 61000-4-5 surges. | Use Scenario: Adding secondary-level surge immunity to USB-C and barrel-jack power inputs in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Secondary protection stage after fuse and common-mode choke - absorbs residual energy that bypasses primary filtering. Use Value: 1.0 μA max leakage avoids battery drain in always-on standby modes; DO-41 package allows manual rework and cost-effective through-hole assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA | DO-214AA (SMB) package; 13 V VWM; 21.5 V VC @ 19.1 A; same 400 W PPPM rating | Surface-mount footprint - requires PCB redesign; higher thermal resistance than axial DO-41 in free-air conditions | Choose SMBJ13CA for space-constrained SMT designs where board area is prioritized over manual assembly or high-temperature derating margin. |
| P6KE13CA | DO-15 package; 13 V VWM; 21.2 V VC @ 19.0 A; 600 W PPPM (10/1000 μs); higher surge rating but larger size | Higher peak power capacity suits infrequent high-energy events (e.g., AC mains coupling); less optimized for repetitive automotive pulses | Choose P6KE13CA when legacy DO-15 footprint compatibility or margin for extreme single-event surges is required - not for AEC-Q101-critical automotive use. |
Compared with SMBJ13CA and P6KE13CA, BZW04P13B-E3/73 offers AEC-Q101 qualification, tighter VBR tolerance (±7.5%), and DO-41 mechanical robustness for vibration-prone environments - making it the preferred choice for automotive and industrial through-hole deployments requiring certified reliability.
Availability
BZW04P13B-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter surge suppression requiring stable component supply and long-lifecycle support.
Supply support for BZW04P13B-E3/73 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 application-specific performance.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom systems where AEC-Q101 validation and precise clamping behavior are mandatory.
FAQ
What is the clamping voltage of BZW04P13B-E3/73 under standard surge conditions?
The BZW04P13B-E3/73 has a maximum clamping voltage (VC) of 21.2 V at 19.0 A peak pulse current (IPPM), measured with a 10/1000 μs waveform at TA = 25 °C. This value defines the upper voltage limit imposed on protected circuits during transient events and is confirmed in the Vishay datasheet document 88316, Table on page 2.
Is BZW04P13B-E3/73 suitable for automotive applications?
Yes, BZW04P13B-E3/73 is AEC-Q101 qualified and explicitly rated for automotive use. Its –55 °C to +175 °C operating junction temperature range, glass-passivated junction, and DO-41 mechanical robustness meet requirements for engine control units, body electronics, and ADAS sensor interfaces. The "HE3" variant is AEC-Q101 qualified; "E3" is commercial grade - confirm suffix with distributor.
What does the "B" suffix in BZW04P13B-E3/73 indicate?
The "B" suffix in BZW04P13B-E3/73 denotes bi-directional functionality. Unlike uni-directional variants (e.g., BZW04P13-E3/73), this part provides symmetrical transient suppression for both positive and negative voltage excursions - essential for AC-coupled lines, differential buses, and ungrounded signal paths where polarity is undefined.
How does the leakage current of BZW04P13B-E3/73 affect high-impedance circuits?
BZW04P13B-E3/73 specifies a maximum reverse leakage current (ID) of 1.0 μA at its 12.8 V stand-off voltage (VWM). This ultra-low leakage prevents measurable loading on high-impedance sensor outputs (e.g., thermistors, piezoelectric elements) and avoids signal offset or battery drain in always-on systems - validated per test condition in Vishay document 88316, page 2.
Can BZW04P13B-E3/73 be used in place of a uni-directional TVS diode?
No - BZW04P13B-E3/73 is bi-directional and lacks polarity marking, making it unsuitable as a direct replacement for uni-directional TVS diodes in DC-biased circuits requiring cathode/anode orientation. Using it in such configurations may result in unintended forward conduction. Always verify circuit topology: bi-directional parts are intended for AC, floating, or dual-rail applications only.
BZW04P13B-E3/73 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 19A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04P13B-E3/73 FAQ
1.How can I place an order for BZW04P13B-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P13B-E3/73 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 BZW04P13B-E3/73 reliable?
The price and inventory of BZW04P13B-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P13B-E3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P13B-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P13B-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P13B-E3/73?
BZW04P13B-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P13B-E3/73 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 BZW04P13B-E3/73?
For technical support, including BZW04P13B-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P13B-E3/73 requirements.
6.How does Aetrix verify that BZW04P13B-E3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P13B-E3/73 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 BZW04P13B-E3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P13B-E3/73?
All BZW04P13B-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P13B-E3/73, 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 BZW04P13B-E3/73 part is unused and in its original packaging.
Return procedure for BZW04P13B-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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