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Vishay General Semiconductor - Diodes Division BZW04P128HE3/54
- Part No.:
- BZW04P128HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P128HE3/54.pdf
- Description:
- TVS DIODE 128VWM 207VC DO204AL
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
BZW04P128HE3/54 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 128 V standoff voltage (VWM), 207 V maximum clamping voltage (VC) at 2.0 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) capability with 10/1000 μs waveform - suitable for automotive electronics ESD and load-dump surge suppression.
For engineers reviewing the BZW04P128HE3/54 datasheet, BZW04P128HE3/54 pinout, BZW04P128HE3/54 application, or BZW04P128HE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) through-hole package, bi-directional symmetry, low leakage (<1 μA at VWM), and temperature coefficient of breakdown voltage (0.108 %/°C).
Technical Context
This device operates as a voltage-clamped crowbar during transients: when reverse (or forward, in bi-directional mode) voltage exceeds its breakdown threshold (143–165 V), it avalanches to limit downstream voltage to ≤207 V. Its glass-passivated junction ensures stable, repeatable clamping with low incremental surge resistance and sub-nanosecond response time.
Rated for 175 °C maximum junction temperature and compliant with JESD22-B102 solderability standards, BZW04P128HE3/54 supports high-reliability industrial and automotive applications where sustained thermal stress and repetitive surge events occur - including 12 V/24 V vehicle subsystems and industrial I/O protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 128 V - maximum continuous operating voltage before clamping begins; defines safe DC bias margin. |
| VBR (Breakdown Voltage) | 143–165 V at 1 mA test current - precise avalanche onset range enabling predictable turn-on behavior. |
| VC (Clamping Voltage) | 207 V at 2.0 A IPPM - limits transient voltage seen by protected ICs, ensuring compliance with ISO 7637-2 Pulse 1/2a/5a. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 μs) - sustains high-energy surges without failure; derates linearly above 25 °C ambient. |
| ID (Reverse Leakage) | <1.0 μA at 128 V - negligible standby power loss and minimal impact on high-impedance sensor circuits. |
| TJ max. | 175 °C - enables operation in under-hood automotive environments and sealed industrial enclosures. |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing 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, RoHS-compliant, qualified per JESD201 Class 2 whisker test (HE3 suffix). No polarity marking - bi-directional symmetry confirmed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | Either lead serves as input/output; no cathode band - identical clamping in both directions. |
| Lead 1 / Lead 2 | Current-carrying terminal | Low-inductance path for surge current; leads rated for 275 °C solder dip (10 s) and 40 A IFSM (uni-directional only, not applicable here). |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, low-drift VBR across temperature and lifetime; eliminates surface degradation under humidity or bias stress. |
| 400 W peak pulse power (10/1000 μs) | Withstands automotive load-dump transients (ISO 16750-2) and inductive switching spikes without degradation. |
| AEC-Q101 qualification | Validated for automotive use: passed HTOL, TC, UHAST, and ESD (HBM ≥8 kV, CDM ≥1 kV) per AEC requirements. |
| Bi-directional architecture | Protects AC-coupled or floating signal lines (e.g., CAN, LIN, sensor bridges) without polarity concerns or external rectification. |
| Low clamping ratio (VC/VWM = 1.62) | Minimizes overvoltage overshoot during fast transients - critical for safeguarding 130 V-rated MOSFETs and microcontrollers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V supply inputs in body control modules (BCM), lighting drivers, and infotainment head units against ISO 7637-2 Pulse 5a (load dump) and Pulse 1 (inductive kick). IC Role / Device Role / Timing Role: Primary clamping element placed upstream of LDOs and DC-DC converters; responds within <1 ns to limit rail voltage excursion. Use Value: Enables use of lower-voltage-rated downstream components (e.g., 36 V input regulators) while maintaining full AEC-Q100 system compliance. |
Use Scenario: Safeguarding analog front-ends of pressure, temperature, or position sensors connected to PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Bi-directional shunt protector on differential sensor outputs (e.g., Wheatstone bridge pairs) or single-ended 4–20 mA loop interfaces. Use Value: Prevents latch-up or permanent damage to precision op-amps and ADCs during cable ESD events (IEC 61000-4-2 ±8 kV contact) without adding series impedance. |
| Telecom Line Interface Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485/RS-422 transceivers in base station backhaul equipment from lightning-induced surges on long-distance twisted-pair cabling. IC Role / Device Role / Timing Role: First-stage TVS on bus lines, paired with GDT or polymer PTC for coordinated multi-level protection. Use Value: Maintains signal integrity up to 10 Mbps by limiting clamping voltage below transceiver absolute maximum ratings (e.g., ±25 V common-mode). |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Across-the-rail clamp on motor terminals to absorb inductive energy during PWM switching and mechanical switch bounce. Use Value: Eliminates need for snubber RC networks, reducing BOM count and PCB area while sustaining >100,000 cycle lifetime under 24 V/5 A motor loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ130A | Uni-directional; 130 V VWM; 200 W PPPM; SMA package (surface-mount) | Requires polarity-aware layout; unsuitable for AC or floating nodes; lower surge handling than BZW04P128HE3/54 | Select only if space-constrained PCBs demand SMT and uni-directional protection suffices. |
| P6KE130A | Uni-directional; 130 V VWM; 600 W PPPM; DO-15 package; higher VC (219 V) | Higher clamping voltage reduces protection margin; larger DO-15 footprint; no AEC-Q101 qualification | Use where cost is primary driver and automotive qualification or tight clamping is not required. |
Compared with SMBJ130A and P6KE130A, BZW04P128HE3/54 offers bi-directional symmetry, AEC-Q101 validation, and superior clamping ratio (207 V vs. 219 V) in a proven through-hole package - making it optimal for automotive and industrial designs demanding reliability, polarity insensitivity, and precise voltage limiting.
Availability
BZW04P128HE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom line protection requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for BZW04P128HE3/54 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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, 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 automotive, industrial, and telecom infrastructure applications where robustness and consistency are non-negotiable.
FAQ
What is the clamping voltage of BZW04P128HE3/54 at its rated peak pulse current?
The BZW04P128HE3/54 has a maximum clamping voltage (VC) of 207 V when subjected to its specified peak pulse current (IPPM) of 2.0 A using the 10/1000 μs waveform. This value is guaranteed across production lots and temperature range (−55 °C to +175 °C), ensuring consistent protection margin for downstream 200 V-rated components.
Is BZW04P128HE3/54 suitable for automotive applications?
Yes, BZW04P128HE3/54 is AEC-Q101 qualified and manufactured with HE3 suffix indicating compliance with JESD201 Class 2 whisker testing. It meets automotive requirements for temperature cycling, high-temperature reverse bias, and ESD robustness - making it appropriate for engine control units, ADAS sensors, and infotainment systems.
Does BZW04P128HE3/54 have polarity markings?
No, BZW04P128HE3/54 is a bi-directional TVS diode and carries no cathode band or polarity marking. Its symmetrical construction allows installation in either orientation - essential for protecting AC-coupled signals, differential buses, or floating power domains without layout constraints.
What is the standoff voltage (VWM) and how does it relate to system design?
The standoff voltage (VWM) of BZW04P128HE3/54 is 128 V - the maximum continuous DC or RMS voltage the device blocks without significant leakage. Designers must ensure normal operating voltage remains ≤128 V to prevent premature conduction; this sets the upper bound for 12 V/24 V systems with high transient margins or 48 V mild-hybrid architectures.
Can BZW04P128HE3/54 replace uni-directional TVS diodes like P6KE130A?
BZW04P128HE3/54 can functionally replace uni-directional parts in bi-directional or polarity-agnostic applications, but not as a direct drop-in due to differing pinout assumptions and lack of cathode marking. Its 207 V clamping is tighter than P6KE130A's 219 V, offering better protection - however, circuit review is required to confirm absence of DC bias polarity constraints.
BZW04P128HE3/54 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:
- -
- 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)
BZW04P128HE3/54 FAQ
1.How can I place an order for BZW04P128HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P128HE3/54 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 BZW04P128HE3/54 reliable?
The price and inventory of BZW04P128HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P128HE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P128HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P128HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P128HE3/54?
BZW04P128HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P128HE3/54 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 BZW04P128HE3/54?
For technical support, including BZW04P128HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P128HE3/54 requirements.
6.How does Aetrix verify that BZW04P128HE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P128HE3/54 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 BZW04P128HE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P128HE3/54?
All BZW04P128HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P128HE3/54, 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 BZW04P128HE3/54 part is unused and in its original packaging.
Return procedure for BZW04P128HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P128HE3/54 Tags
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