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Vishay General Semiconductor - Diodes Division BZW04-48BHE3/54
- Part No.:
- BZW04-48BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-48BHE3/54.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,169
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Product details
Overview
BZW04-48BHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of signal and power lines. It features a 47.8 V stand-off voltage (VWM), 53.2–58.8 V breakdown range (VBR at 1 mA), 77.0 V maximum 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 and industrial I/O protection.
For engineers reviewing the BZW04-48BHE3/54 datasheet, BZW04-48BHE3/54 pinout, BZW04-48BHE3/54 application, or BZW04-48BHE3/54 equivalent, this AEC-Q101 qualified TVS offers verified bidirectional surge suppression, low leakage (<1 μA at VWM), and stable temperature coefficient (0.103 %/°C), critical for ESD and load-dump hardened designs.
Technical Context
This device operates as a voltage-clamped shunt protector: when transient voltage exceeds VBR, it avalanches into low-impedance conduction to divert surge energy away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive transients.
Rated for -55 °C to +175 °C operating junction temperature and compliant with JESD22-B102 solderability standards, the BZW04-48BHE3/54 supports high-reliability automotive and industrial environments where thermal cycling and mechanical stress are present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 47.8 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for protected line. |
| VBR (min/max) | 53.2 V / 58.8 V at 1 mA - Verified avalanche onset range; ensures consistent triggering across production lots. |
| VC @ IPPM | 77.0 V at 5.2 A - Clamped voltage during 10/1000 μs surge; determines maximum stress on downstream ICs. |
| PPPM | 400 W - Peak pulse power handling per single transient; enables protection against ISO 7637-2 Pulse 1/2a/5a events. |
| IPPM | 5.2 A - Peak pulse current capability at rated waveform; directly constrains minimum series impedance required. |
| TJ max. | +175 °C - Maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial settings. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, temperature cycling, and HAST testing. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking for bidirectional configuration - both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Both terminals conduct identically during positive or negative surges; no orientation required during placement. |
| Lead 1 / Lead 2 | PCB interconnect interface | Matte tin-plated, J-STD-002 compliant; supports wave/solder reflow up to 275 °C for 10 s. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter drift < ±5 % over 1000 hrs HTOL. |
| 400 W peak pulse power (10/1000 μs) | Withstands automotive load-dump transients (ISO 16750-2) without degradation when properly heatsinked. |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including ESD-HBM ≥ 8 kV and TCT 1000 cycles. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., EFT bursts), improving clamping fidelity. |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation essential for safety-critical control modules and battery management systems. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from ISO 7637-2 coupled transients and ESD. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed directly at connector entry point to limit line voltage to <77 V during 10/1000 μs surges. Use Value: Prevents latch-up or permanent damage to 5 V/12 V sensor front-ends while maintaining signal integrity below VWM = 47.8 V. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against inductive switching spikes from solenoids and relays. IC Role / Device Role / Timing Role: Fast-response voltage clamp across input terminals to suppress >100 V transients within nanoseconds. Use Value: Enables reliable operation in factory automation environments with frequent contactor switching, reducing field failure rates by >90 % vs. unclamped designs. |
| Telecom Line Interface Protection | Consumer Power Adapter Surge Suppression |
Use Scenario: Shielding Ethernet PHY power rails and RS-485 data lines from lightning-induced surges and AC mains coupling in outdoor telecom equipment. IC Role / Device Role / Timing Role: Primary-level TVS on DC bias lines and secondary-level clamp on differential data pairs. Use Value: Maintains immunity to 1 kV/0.5 kA combination wave surges per IEC 61000-4-5, preserving link uptime in remote base stations. |
Use Scenario: Adding secondary-side surge protection on 12–19 V output rails of wall-mounted AC/DC adapters used in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Final-stage overvoltage limiter after DC-DC regulation to prevent downstream SoC brownout or reset. Use Value: Absorbs residual transients escaping primary-side MOVs, eliminating unexpected reboots caused by 50–100 V spikes on regulated outputs. |
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 | Same VWM (48 V), but SMC package (DO-214AB); 600 W PPPM; higher IPPM (10.6 A). | Higher power handling suits larger PCB footprints; less suitable for space-constrained DO-41 layouts. | Select SMBJ48CA only if board area allows SMC and surge energy exceeds 400 W capability of BZW04-48BHE3/54. |
| P6KE48CA | Legacy 600 W TVS in DO-15; VWM = 48 V, VC = 77 V, but slower response and non-AEC-Q101 qualified. | Lacks automotive qualification and has higher leakage (>5 μA); not recommended for new automotive designs. | Choose P6KE48CA only for cost-sensitive, non-automotive industrial replacements where AEC-Q101 is not mandated. |
Compared with SMBJ48CA and P6KE48CA, the BZW04-48BHE3/54 delivers AEC-Q101 assurance in compact DO-41 form factor with optimized clamping performance for 24–48 V systems, making it the preferred choice for next-generation automotive and high-reliability embedded protection.
Availability
BZW04-48BHE3/54 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 full traceability.
Supply support for BZW04-48BHE3/54 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, and passive components for automotive, industrial, and computing markets.
The BZW04 series is engineered specifically for robust transient suppression in harsh environments, emphasizing AEC-Q101 compliance, tight VBR tolerance, and stable thermal performance across -55 °C to +175 °C.
FAQ
What is the polarity configuration of BZW04-48BHE3/54?
The BZW04-48BHE3/54 is a bidirectional TVS diode, meaning it provides symmetrical clamping for both positive and negative transients. There is no cathode marking on the DO-41 package, and either lead may be connected to either side of the protected line - no orientation sensitivity exists in circuit layout.
Does BZW04-48BHE3/54 meet automotive qualification standards?
Yes, the "HE3" suffix confirms AEC-Q101 qualification for BZW04-48BHE3/54. This includes validation for high-temperature operating life, temperature cycling, humidity testing, and ESD robustness - making it suitable for engine control units, body electronics, and ADAS sensor modules.
What is the maximum clamping voltage of BZW04-48BHE3/54 under surge conditions?
The BZW04-48BHE3/54 exhibits a maximum clamping voltage (VC) of 77.0 V at 5.2 A peak pulse current with a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events.
Can BZW04-48BHE3/54 replace unidirectional TVS diodes in existing designs?
No - BZW04-48BHE3/54 is strictly bidirectional and cannot substitute for unidirectional TVS devices in DC-biased circuits requiring forward conduction blocking. Its symmetrical behavior makes it ideal for AC lines, differential buses, or floating references, but unsuitable where DC polarity must be preserved.
What packaging format is used for BZW04-48BHE3/54?
BZW04-48BHE3/54 is supplied in 13-inch paper tape and reel format with a base quantity of 550 units per reel (package code "54"). The DO-41 axial-leaded package is compatible with standard through-hole assembly processes and supports manual or automated insertion.
BZW04-48BHE3/54 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:
- Active
- 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)
BZW04-48BHE3/54 FAQ
1.How can I place an order for BZW04-48BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-48BHE3/54 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 BZW04-48BHE3/54 reliable?
The price and inventory of BZW04-48BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-48BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-48BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-48BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-48BHE3/54?
BZW04-48BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-48BHE3/54 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 BZW04-48BHE3/54?
For technical support, including BZW04-48BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-48BHE3/54 requirements.
6.How does Aetrix verify that BZW04-48BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-48BHE3/54 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 BZW04-48BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-48BHE3/54?
All BZW04-48BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-48BHE3/54, 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 BZW04-48BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04-48BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-48BHE3/54 Tags
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