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Vishay General Semiconductor - Diodes Division BZW04P70BHE3/54
- Part No.:
- BZW04P70BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P70BHE3/54.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,903
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Product details
Overview
BZW04P70BHE3/54 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 70.1 V stand-off voltage (VWM), 113 V maximum clamping voltage (VC) at 3.5 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 μs waveform - suitable for automotive-grade ESD and surge protection in sensor interfaces and power supply rails.
For engineers reviewing the BZW04P70BHE3/54 datasheet, BZW04P70BHE3/54 pinout, BZW04P70BHE3/54 application, or BZW04P70BHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) package, bi-directional symmetry, low leakage (<1 μA at VWM), and temperature coefficient of breakdown voltage (0.105 %/°C).
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the 10/1000 μs pulse rating reflects standardized surge immunity per ANSI/IEEE C62.35.
The device is rated for continuous operation from −55 °C to +175 °C junction temperature and supports repetitive surge events at ≤0.01 % duty cycle. Its 1.5 W steady-state power dissipation (PD) and 3.5 A non-repetitive forward surge current (IFSM) capability align with industrial and automotive load-switching transient profiles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 70.1 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin below breakdown. |
| VBR min/max | 77.9 V / 90.2 V at 1 mA - Confirmed breakdown voltage range ensures reliable triggering across process variation and temperature. |
| VC @ IPPM | 113 V at 3.5 A (10/1000 μs) - Clamping voltage limits downstream component stress during surge events. |
| PPPM | 400 W - Peak pulse power handling capacity under standardized surge waveform; validates robustness against IEC 61000-4-5 Level 3/4 surges. |
| ID @ VWM | <1 μA - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | +175 °C - High junction temperature rating supports under-hood automotive and industrial environments without derating. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronic components, including temperature cycling, HTRB, and ESD. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. HE3 suffix denotes AEC-Q101 qualification and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bi-directional) | Transient conduction path | No polarity marking; symmetrical terminals enable bidirectional clamping - either end connects to protected line, other to ground or reference. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable, repeatable breakdown characteristics and long-term reliability under thermal cycling and humidity stress. |
| 400 W peak pulse power (10/1000 μs) | Validates immunity to high-energy transients such as ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 combination wave surges. |
| AEC-Q101 qualified | Confirms suitability for automotive applications including body control modules, ADAS sensor interfaces, and infotainment power rails. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive downstream ICs like CAN transceivers or ADCs. |
| Bi-directional configuration | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded power domains without polarity concerns. |
Applications
| Automotive Sensor Protection | Industrial Power Supply Input |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and chassis ground, responding within nanoseconds to suppress spikes up to ±113 V. Use Value: Prevents latch-up or permanent damage to microcontroller I/O pins and analog front-end circuitry under AEC-Q100 stress conditions. |
Use Scenario: Safeguarding 24 V DC industrial PLC power inputs against lightning-induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of bulk capacitance and LDO regulators, clamping transients before they propagate into system logic. Use Value: Maintains system uptime by absorbing 400 W pulses without degradation, eliminating need for redundant protection stages. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceiver I/O pins in building automation gateways exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bi-directional TVS on differential pair, preserving signal integrity while limiting common-mode voltage excursions. Use Value: Achieves >15 kV contact ESD immunity (IEC 61000-4-2) without distorting data transmission at 10 Mbps. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Across-the-line clamp between motor terminals and ground, conducting surge energy away from MCU-based motor drivers. Use Value: Extends MOSFET lifetime by limiting VDS overshoot to <113 V during commutation, reducing avalanche stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ70CA | Same DO-214AA package; slightly higher VC (115 V) and lower IPPM (3.2 A); 600 W PPPM rating. | Preferred where board space allows SMD mounting and higher surge repetition rate is needed. | Select SMBJ70CA when surface-mount layout and tighter PCB footprint are prioritized over through-hole mechanical robustness. |
| P6KE70CA | DO-15 package; identical VWM/VC specs but lower PPPM (600 W) and higher IPPM (5.2 A); no AEC-Q101 qualification. | Suitable for commercial-grade industrial equipment where automotive qualification is not required. | Choose P6KE70CA for cost-sensitive, non-automotive applications needing higher single-pulse current handling. |
Compared with SMBJ70CA and P6KE70CA, BZW04P70BHE3/54 offers AEC-Q101 qualification and DO-41 mechanical stability ideal for high-vibration environments, while maintaining precise 70.1 V stand-off and low-leakage performance critical for battery-powered sensor nodes.
Availability
BZW04P70BHE3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power supply input staging, and telecom line interface applications requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.
Supply support for BZW04P70BHE3/54 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 application-specific optimization.
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 where failure resilience is mission-critical.
FAQ
What is the clamping voltage of BZW04P70BHE3/54 under standard surge conditions?
The BZW04P70BHE3/54 has a maximum clamping voltage (VC) of 113 V at 3.5 A peak pulse current with a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is BZW04P70BHE3/54 suitable for automotive applications?
Yes, BZW04P70BHE3/54 is AEC-Q101 qualified and manufactured with HE3 suffix indicating compliance with automotive stress testing requirements including temperature cycling, highly accelerated life testing (HALT), and ESD robustness. Its −55 °C to +175 °C operating range and DO-41 mechanical stability make it appropriate for engine bay and chassis-mounted modules.
How does the bi-directional design of BZW04P70BHE3/54 affect its circuit implementation?
The bi-directional configuration of BZW04P70BHE3/54 means it functions identically in both polarities - no cathode marking, no orientation dependency. This enables direct placement across AC-coupled lines, differential buses (e.g., CAN, RS-485), or ungrounded power domains, simplifying layout and eliminating risk of reverse installation during assembly.
What is the maximum steady-state power dissipation for BZW04P70BHE3/54?
BZW04P70BHE3/54 has a maximum steady-state power dissipation (PD) of 1.5 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C. This rating governs continuous leakage-related heating and must be considered alongside ambient temperature and PCB copper area in thermal design - especially in sealed enclosures or high-density layouts.
Does BZW04P70BHE3/54 require derating at elevated ambient temperatures?
Yes, BZW04P70BHE3/54 requires thermal derating above 25 °C ambient. Its power dissipation decreases linearly per the derating curve in Figure 5 of document 88316, reaching zero at +175 °C junction temperature. Designers must calculate actual TJ using θJA (estimated ~100 °C/W for DO-41 in still air) and ensure margin remains under 175 °C under worst-case load and ambient conditions.
BZW04P70BHE3/54 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 3.5A
- 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)
BZW04P70BHE3/54 FAQ
1.How can I place an order for BZW04P70BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P70BHE3/54 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 BZW04P70BHE3/54 reliable?
The price and inventory of BZW04P70BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P70BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P70BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P70BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P70BHE3/54?
BZW04P70BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P70BHE3/54 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 BZW04P70BHE3/54?
For technical support, including BZW04P70BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P70BHE3/54 requirements.
6.How does Aetrix verify that BZW04P70BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P70BHE3/54 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 BZW04P70BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P70BHE3/54?
All BZW04P70BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P70BHE3/54, 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 BZW04P70BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04P70BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P70BHE3/54 Tags
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