My Inquiry
My Account
Vishay General Semiconductor - Diodes Division BZW04P128-E3/54
- Part No.:
- BZW04P128-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P128-E3/54.pdf
- Description:
- TVS DIODE 128VWM 207VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,391
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZW04P128-E3/54 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 128 V stand-off voltage (VWM), 207 V maximum clamping voltage (VC) at 2.0 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 BZW04P128-E3/54 datasheet, BZW04P128-E3/54 pinout, BZW04P128-E3/54 application, or BZW04P128-E3/54 equivalent, key selection criteria include its DO-204AL (DO-41) package compatibility, AEC-Q101 qualification for automotive use, bi-directional surge handling up to ±207 V, and low 1.0 μA reverse leakage at VWM - critical for low-power, high-reliability systems.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, delivering consistent clamping performance without polarity dependency. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the 175 °C max junction temperature supports operation in under-hood automotive environments and industrial enclosures with elevated ambient temperatures.
The device complies with ANSI/IEEE C62.35 surge standards and is rated for repetitive 10/1000 μs transients at 0.01% duty cycle. Its 0.108 %/°C temperature coefficient of VBR enables predictable voltage drift across temperature, and the 1.5 W steady-state power dissipation (PD) allows reliable continuous operation in thermally constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 128 V - Stand-off voltage; defines maximum continuous operating voltage before conduction begins. |
| VC @ IPPM | 207 V at 2.0 A - Clamping voltage during 10/1000 μs surge; limits downstream voltage stress to safe levels. |
| PPPM | 400 W - Peak pulse power handling; sustains high-energy transients like ISO 7637-2 Load Dump or IEC 61000-4-5 surges. |
| VBR min/max | 143 V / 165 V at 1.0 mA - Breakdown voltage range; ensures tight tolerance for precise overvoltage thresholding. |
| ID @ VWM | 1.0 μA - Reverse leakage current; negligible power loss and minimal impact on high-impedance sensing circuits. |
| TJ max | 175 °C - Maximum junction temperature; enables deployment in AEC-Q101-compliant automotive modules. |
| Package | DO-204AL (DO-41) - Standard axial-leaded through-hole package; compatible with legacy PCB assembly and manual repair. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. Bi-directional construction means no polarity marking - both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge conduction path | No functional distinction between leads; connects across protected line and ground (or differential pair) without orientation constraint. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces. |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and low parameter drift over temperature and life cycles. |
| 400 W peak pulse power (10/1000 μs) | Withstands high-energy transients common in 12 V/24 V vehicle electrical systems and industrial motor drives. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD, inductive switching), improving system immunity. |
| RoHS-compliant, JESD201 Class 1A whisker tested | Meets global environmental regulations and ensures mechanical reliability in vibration-prone environments. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and jump-start transients in 12 V vehicle networks. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and chassis ground, responding within <1 ns to limit voltage excursions. Use Value: Prevents damage to sensitive ASICs and microcontrollers by clamping transients to ≤207 V while maintaining 128 V DC operation integrity. |
Use Scenario: Shielding digital input modules in programmable logic controllers from inductive kickback generated by solenoid valves and relay coils. IC Role / Device Role / Timing Role: Standoff protector across 24 V DC input terminals, conducting only during surge events to divert energy to ground. Use Value: Eliminates need for external series impedance or RC snubbers, reducing BOM count and board space in DIN-rail mounted controllers. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHY interfaces and DSL line drivers against lightning-induced surges and AC power cross-talk in outdoor telecom equipment. IC Role / Device Role / Timing Role: Primary-level surge suppression on unshielded twisted-pair (UTP) lines, coordinated with secondary GDT or MOV stages. Use Value: Provides fast-response clamping (≤207 V) ahead of slower bulk protectors, preserving signal integrity during multi-kV transients. |
Use Scenario: Overvoltage protection on primary-side rectifier outputs in universal-input AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Secondary-stage clamp after bridge rectifier, absorbing residual switching spikes and line surges not filtered by X/Y capacitors. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (2 kV/1 kA) without derating or thermal runaway risk due to 175 °C TJ rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120CA | DO-214AA package (SMB), 120 V VWM, 193 V VC @ 2.1 A, same 400 W PPPM rating. | Surface-mount alternative requiring PCB redesign; lower profile but higher thermal resistance than DO-41. | Select when automated SMT assembly is required and board space is constrained; verify thermal relief pad design for 1.5 W PD. |
| P6KE130CA | DO-15 package, 130 V VWM, 219 V VC @ 1.8 A, 600 W PPPM (higher pulse rating but larger footprint). | Legacy through-hole option with higher clamping voltage and less precise VWM tolerance (±10% vs. ±5% for BZW04P128). | Choose for cost-sensitive industrial designs where 219 V clamping is acceptable and higher surge margin is needed. |
Compared with SMBJ120CA and P6KE130CA, BZW04P128-E3/54 offers tighter VWM tolerance (±1.6%), lower clamping ratio (VC/VWM = 1.62), and AEC-Q101 qualification - making it optimal for automotive-grade signal line protection where precision and qualification are mandatory.
Availability
BZW04P128-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for BZW04P128-E3/54 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-energy, bi-directional transient suppression in harsh environments - emphasizing AEC-Q101 compliance, tight parametric control, and robust surge endurance.
FAQ
What is the clamping voltage of BZW04P128-E3/54 under standard surge conditions?
The BZW04P128-E3/54 has a maximum clamping voltage (VC) of 207 V when subjected to a 10/1000 μs waveform at 2.0 A peak pulse current (IPPM). This value is measured per ANSI/IEEE C62.35 and reflects the upper limit of voltage seen by downstream circuitry during a defined transient event. The actual clamping voltage of BZW04P128-E3/54 may be lower depending on surge amplitude and duration, but 207 V is the guaranteed worst-case specification.
Is BZW04P128-E3/54 suitable for automotive applications?
Yes, BZW04P128-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments with operating junction temperatures up to 175 °C. Its bi-directional architecture, low leakage (1.0 μA at 128 V), and tight VBR tolerance make BZW04P128-E3/54 appropriate for protecting CAN, LIN, and sensor signal lines in passenger vehicles and commercial vehicles.
Does BZW04P128-E3/54 have polarity markings?
No, BZW04P128-E3/54 is a bi-directional TVS diode and carries no polarity marking on the DO-204AL (DO-41) package. Both leads are functionally identical, allowing installation in either orientation across the protected line and ground - simplifying assembly and eliminating orientation-related field failures. This symmetry is confirmed in the Vishay datasheet revision 12-Jul-11, page 1 ("For bi-directional types, no marking").
What is the maximum steady-state power dissipation of BZW04P128-E3/54?
The BZW04P128-E3/54 has a maximum steady-state power dissipation (PD) of 1.5 W when mounted on an infinite heatsink at lead temperature (TL) of 75 °C, per Figure 5 in the Vishay datasheet. This rating applies to continuous DC or low-frequency reverse-bias conditions - not transient events. Derating is required above 25 °C ambient, and BZW04P128-E3/54 must not exceed 175 °C junction temperature under any operating condition.
How does the temperature coefficient affect BZW04P128-E3/54's breakdown voltage?
The BZW04P128-E3/54 has a maximum temperature coefficient of VBR of +0.108 %/°C, meaning its breakdown voltage increases by up to 0.108% per degree Celsius rise in junction temperature. For example, at 125 °C TJ (100 °C above 25 °C reference), VBR may increase by ~10.8%, shifting from nominal 154 V (mid-range) toward 170 V. This positive drift is inherent to silicon avalanche structure and is fully characterized in the BZW04P128-E3/54 datasheet Table on page 3.
BZW04P128-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 2A
- 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)
BZW04P128-E3/54 FAQ
1.How can I place an order for BZW04P128-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P128-E3/54 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 BZW04P128-E3/54 reliable?
The price and inventory of BZW04P128-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P128-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P128-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P128-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P128-E3/54?
BZW04P128-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P128-E3/54 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 BZW04P128-E3/54?
For technical support, including BZW04P128-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P128-E3/54 requirements.
6.How does Aetrix verify that BZW04P128-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P128-E3/54 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 BZW04P128-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P128-E3/54?
All BZW04P128-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P128-E3/54, 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 BZW04P128-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P128-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P128-E3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
