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Vishay General Semiconductor - Diodes Division BZW04P48BHE3/54
- Part No.:
- BZW04P48BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P48BHE3/54.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO204AL
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
BZW04P48BHE3/54 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection on signal and power lines. It features a 47.8 V stand-off voltage (VWM), 53.2–61.6 V breakdown voltage (VBR), 77.0 V clamping voltage (VC) at 5.2 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the BZW04P48BHE3/54 datasheet, BZW04P48BHE3/54 pinout, BZW04P48BHE3/54 application, or BZW04P48BHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) axial package, bi-directional symmetry, low 0.103 %/°C VBR temperature coefficient, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity standards.
Technical Context
This bi-directional TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive transients. Its symmetrical breakdown behavior ensures identical protection in both polarities without polarity marking - critical for AC-coupled or floating signal paths.
The device operates across –55 °C to +175 °C junction temperature range and sustains 400 W peak pulse power with 0.01 % duty cycle. It is rated for 1.5 W steady-state power dissipation at TL = 75 °C and exhibits ≤1.0 μA reverse leakage at VWM, enabling low-power system compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 47.8 V - maximum continuous working voltage before clamping initiates; defines safe operating margin for 48 V nominal systems. |
| VBR (min/max) | 53.2 V / 61.6 V at 1 mA - guaranteed breakdown onset range; ensures predictable turn-on during ESD or surge events. |
| VC @ IPPM | 77.0 V at 5.2 A - clamped voltage during 10/1000 μs surge; limits downstream IC stress to <80 V under worst-case 400 W transient. |
| PPPM | 400 W - peak pulse power handling per 10/1000 μs waveform; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge testing. |
| TJ max. | +175 °C - maximum junction temperature; enables use in under-hood automotive and high-ambient industrial environments. |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including HTOL, TC, and ESD stress tests per AEC standard. |
| Package | DO-204AL (DO-41) - axial-leaded, RoHS-compliant epoxy package with matte tin-plated leads; compatible with wave and reflow soldering (275 °C/10 s). |
Pinout & Package
DO-204AL (DO-41) axial package: hermetically sealed glass-passivated chip in molded UL 94 V-0 epoxy housing; no polarity marking (bi-directional); lead diameter 0.023–0.026 in (0.58–0.66 mm); overall length ≥1.0 in (25.4 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction between leads; either terminal serves as cathode or anode depending on transient polarity - eliminates orientation errors during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, low-leakage performance over lifetime and temperature; prevents moisture-induced degradation in harsh environments. |
| 400 W peak pulse power (10/1000 μs) | Withstands repeated lightning-induced surges and inductive switch-off transients without parametric shift or failure. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| Low VBR tempco (0.103 %/°C) | Minimizes clamping voltage drift across –40 °C to +125 °C ambient, ensuring consistent protection in wide-temperature deployments. |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and WEEE/REACH requirements; suitable for automotive and industrial production. |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and MEMS pressure sensors from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential signal pair or supply rail to limit transient excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or gate oxide damage in 5 V/12 V sensor front-ends while maintaining signal integrity via sub-1 ns response. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers against field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Primary overvoltage shunt on input terminals, coordinated with series impedance and filtering to meet IEC 61000-4-4/4-5 immunity requirements. Use Value: Enables >1 kV surge withstand (line-earth) without derating or additional crowbar circuitry, reducing BOM count and board space. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Shielding Ethernet PHYs and DSL line drivers from induced lightning surges on outdoor copper pairs. IC Role / Device Role / Timing Role: First-stage transient suppressor ahead of GDT or polymer PTC, clamping common-mode transients before they reach isolation barriers. Use Value: Limits let-through energy to <10 mJ per event, preserving transformer insulation life and meeting GR-1089-CORE Level 3 compliance. |
Use Scenario: Secondary-side overvoltage suppression on 5 V/9 V USB-C PD adapter outputs exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Fast-acting clamp parallel to output capacitor, activated within nanoseconds to prevent overshoot beyond 6.8 V on connected devices. Use Value: Eliminates need for post-regulator LDO headroom, improving efficiency while guaranteeing USB-IF VBUS tolerance (–0.5 V to +6 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48CA | DO-214AA (SMB) package; 48 V VWM; 70 V VC @ 5.7 A; same 400 W PPPM but higher thermal resistance (RθJA ≈ 60 °C/W vs. DO-41's ~50 °C/W). | Surface-mount only; requires PCB real estate and reflow profile optimization; less suitable for through-hole legacy designs or high-vibration mechanical mounting. | Select SMBJ48CA when automated SMT assembly, space constraints, or higher board density are priorities - not a drop-in replacement for axial layouts. |
| P6KE48CA | DO-15 package; 48 V VWM; 72 V VC @ 5.2 A; 600 W PPPM (10/1000 μs); larger case size (5.2 mm Ø × 9.5 mm L) and higher IFSM (100 A). | Higher surge margin for infrequent but extreme events (e.g., utility grid switching); less optimal for cost-sensitive, high-volume consumer applications due to larger footprint and weight. | Choose P6KE48CA where long-term reliability under rare high-energy surges outweighs size/cost - verify mechanical fit and thermal pad clearance. |
Compared with SMBJ48CA and P6KE48CA, BZW04P48BHE3/54 offers the optimal balance of AEC-Q101 qualification, DO-41 axial form factor for manual/hybrid assembly, and precise 47.8 V VWM alignment with 48 V nominal systems - making it preferred for automotive Tier-2 suppliers and industrial OEMs requiring traceable, qualified components.
Availability
BZW04P48BHE3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial analog I/O hardening, and telecom line interface designs requiring stable component supply, long-lifecycle support, and AEC-Q101 assurance.
Supply support for BZW04P48BHE3/54 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and automotive-grade validation.
The BZW04P series belongs to Vishay's TransZorb® TVS platform, engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure - prioritizing low clamping ratio, tight parameter distribution, and extended temperature operation.
FAQ
What is the maximum clamping voltage of BZW04P48BHE3/54 under a 10/1000 μs surge?
The maximum clamping voltage (VC) of BZW04P48BHE3/54 is 77.0 V at 5.2 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 test conditions and represents the upper limit of voltage imposed on protected circuitry during standardized surge events - critical for ensuring downstream ICs remain within their absolute maximum voltage ratings. BZW04P48BHE3/54 maintains this clamping performance across its full operating temperature range.
Is BZW04P48BHE3/54 suitable for automotive applications?
Yes, BZW04P48BHE3/54 is AEC-Q101 qualified and explicitly rated for automotive use. The HE3 suffix denotes compliance with JESD201 Class 2 whisker resistance and full AEC-Q101 stress testing (including HTOL, temperature cycling, and ESD). It is deployed in engine control units, body control modules, and ADAS sensor interfaces where sustained operation from –40 °C to +125 °C ambient and immunity to load dump transients are required. BZW04P48BHE3/54 meets these demands with its 175 °C TJ max and 400 W surge capability.
How does the bi-directional nature of BZW04P48BHE3/54 affect PCB layout?
The bi-directional design of BZW04P48BHE3/54 eliminates polarity sensitivity - both leads are functionally identical, so no cathode band or orientation marking exists. This simplifies PCB layout by removing the need for silkscreen polarity indicators, reducing assembly errors in high-mix manufacturing. It also enables symmetric placement across differential lines (e.g., RS-485, CAN) without concern for lead assignment. BZW04P48BHE3/54's DO-41 axial package further supports manual or wave-soldered through-hole integration in legacy or mixed-technology boards.
What is the reverse leakage current specification for BZW04P48BHE3/54 at its stand-off voltage?
At its 47.8 V stand-off voltage (VWM), BZW04P48BHE3/54 exhibits a maximum reverse leakage current (ID) of 1.0 μA at TA = 25 °C. This ultra-low leakage ensures minimal power loss in always-on circuits and avoids false triggering in high-impedance sensing nodes. The specification holds across the full operating temperature range, with leakage remaining below 5 μA up to +125 °C ambient - verified per the Vishay BZW04P-5V8 thru BZW04-376 datasheet (Document Number: 88316, Rev. 12-Jul-11). BZW04P48BHE3/54 thus supports precision analog and battery-powered applications without compromising standby current budgets.
Can BZW04P48BHE3/54 be used in place of a unidirectional TVS diode?
No - BZW04P48BHE3/54 is strictly bi-directional and must not replace a unidirectional TVS diode in DC-biased circuits requiring forward conduction blocking. Unidirectional devices (e.g., BZW04P48HE3) conduct only in reverse bias and block forward current, whereas BZW04P48BHE3/54 conducts symmetrically in both directions. Substituting it in a DC power rail application would cause short-circuit failure. BZW04P48BHE3/54 is appropriate only for AC-coupled signals, floating buses (CAN, RS-485), or dual-rail protection where polarity reversal is possible - always verify circuit topology before selecting BZW04P48BHE3/54.
BZW04P48BHE3/54 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):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- 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)
BZW04P48BHE3/54 FAQ
1.How can I place an order for BZW04P48BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P48BHE3/54 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 BZW04P48BHE3/54 reliable?
The price and inventory of BZW04P48BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P48BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P48BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P48BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P48BHE3/54?
BZW04P48BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P48BHE3/54 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 BZW04P48BHE3/54?
For technical support, including BZW04P48BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P48BHE3/54 requirements.
6.How does Aetrix verify that BZW04P48BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P48BHE3/54 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 BZW04P48BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P48BHE3/54?
All BZW04P48BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P48BHE3/54, 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 BZW04P48BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04P48BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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