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Vishay General Semiconductor - Diodes Division BZW04P23HE3/73
- Part No.:
- BZW04P23HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P23HE3/73.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,761
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Product details
Overview
BZW04P23HE3/73 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode in DO-204AL (DO-41) package, designed for clamping voltage transients on signal and power lines. It features a 23.1 V stand-off voltage (VWM), 37.5 V maximum clamping voltage (VC) at 10.7 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform), making it suitable for protecting MOSFETs and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the BZW04P23HE3/73 datasheet, BZW04P23HE3/73 pinout, BZW04P23HE3/73 application, or BZW04P23HE3/73 equivalent, key selection considerations include its AEC-Q101 qualification, bi-directional surge capability, low clamping ratio (VC/VWM = 1.63), and compatibility with high-reliability PCB assembly per J-STD-002 and JESD22-B102.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown behavior in both polarities, enabling robust suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while the 175 °C maximum junction temperature supports operation in under-hood automotive environments.
The BZW04P23HE3/73 delivers 400 W peak pulse power handling with a 0.01 % duty cycle, and exhibits a temperature coefficient of breakdown voltage of +0.096 %/°C - critical for thermal stability across wide ambient ranges. Its 1.5 W steady-state power dissipation (PD) and 1.0 µA max reverse leakage at VWM support low-power standby integrity in always-on circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 23.1 V - Maximum continuous working voltage before clamping begins; defines safe operating margin for 24 V nominal systems. |
| VC @ IPPM | 37.5 V - Clamped voltage at 10.7 A peak pulse current; limits downstream IC stress during ISO 7637-2 pulse 1/2a/5a events. |
| IPPM | 10.7 A - Peak surge current capability with 10/1000 µs waveform; sufficient for automotive load-dump and inductive switch-off protection. |
| PPPM | 400 W - Transient energy absorption capacity; enables single-device protection for medium-energy transients without derating. |
| TJmax | 175 °C - Maximum junction temperature; supports AEC-Q101 qualification and extended-life operation in engine-control modules. |
| Leakage @ VWM | 1.0 µA - Low reverse leakage ensures minimal quiescent current draw in battery-powered sensor interfaces. |
| Package | DO-204AL (DO-41) - Industry-standard axial leaded package with UL 94 V-0 molding; compatible with automated through-hole insertion and wave soldering. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, molded epoxy case with matte tin-plated leads. Bi-directional construction means no cathode marking; terminals are non-polarized and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both ends function identically; bidirectional clamping occurs regardless of voltage polarity applied across the device. |
| Lead 1 / Lead 2 | PCB interconnect interface | Matte tin plating meets J-STD-002 solderability; 275 °C/10 s solder dip rating supports reflow and wave processes. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for powertrain and body electronics. |
| Glass passivated junction | Ensures stable VBR tolerance (±5 % min–max spread) and low parametric drift over 15+ year service life in harsh environments. |
| 400 W peak pulse power (10/1000 µs) | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) without parallel staging or heat sinking. |
| Clamping ratio VC/VWM = 1.63 | Minimizes overvoltage exposure to protected ICs - critical for 3.3 V or 5 V logic interfacing with 24 V supply domains. |
| RoHS-compliant, HE3 suffix | Meets JESD201 Class 2 whisker resistance; eliminates tin whisker risk in long-duration, high-vibration applications like ADAS sensors. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting microcontroller GPIOs and LIN bus transceivers from load-dump transients during battery disconnect/reconnect events. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to shunt surge energy before reaching sensitive analog front-end circuitry. Use Value: Prevents latch-up or permanent damage to 5 V tolerant MCU pins by limiting transient voltage to ≤37.5 V during 100 V/50 ms load-dump pulses. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and ESD from operator panels. IC Role / Device Role / Timing Role: Primary transient suppressor on field-side signal line, positioned upstream of optocoupler isolation barrier. Use Value: Maintains signal integrity by clamping induced spikes to <40 V, ensuring reliable optocoupler turn-on without false triggering or LED degradation. |
| Automotive Sensor Signal Conditioning | Telecom Power Supply Rail Protection |
|
Use Scenario: Shielding analog outputs of pressure/temperature sensors in engine compartments from ignition noise and alternator ripple. IC Role / Device Role / Timing Role: Low-leakage (1 µA) bi-directional clamp on differential sensor output lines, preserving DC accuracy while suppressing RF transients. Use Value: Enables stable 12-bit ADC readings by limiting common-mode surges to <37.5 V without adding offset or gain error in millivolt-level signals. |
Use Scenario: Guarding -48 V telecom power distribution boards against lightning-induced surges entering via copper pairs or backup battery lines. IC Role / Device Role / Timing Role: Secondary-stage TVS on DC feed lines, coordinated with upstream GDTs to handle residual energy after coarse clamping. Use Value: Absorbs up to 400 W of residual surge energy with <100 ns response, preventing secondary failure of DC-DC converters and hot-swap controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA | DO-214AA package; 24 V VWM, 38.9 V VC @ 10.3 A; same PPPM but surface-mount form factor. | Requires PCB redesign for SMT placement; better suited for space-constrained telecom modules than through-hole automotive harnesses. | Select when board area is constrained and reflow assembly is available; verify thermal pad layout for 1.5 W dissipation. |
| 1.5KE24CA | DO-201AD package; 24 V VWM, 38.7 V VC @ 10.3 A; higher 1.5 kW PPPM but larger footprint and lower surge repetition tolerance. | Used in legacy industrial power supplies where higher single-pulse energy is needed, but not AEC-Q101 qualified. | Choose only for non-automotive applications requiring >400 W single-event margin; avoid in AEC-Q101–mandated designs. |
Compared with SMBJ24CA and 1.5KE24CA, the BZW04P23HE3/73 offers AEC-Q101 qualification, DO-41 through-hole compatibility for high-vibration mounting, and optimized clamping performance for 24 V system-level transients - making it the preferred choice for automotive and ruggedized industrial deployments where reliability and mechanical robustness are prioritized over miniaturization.
Availability
BZW04P23HE3/73 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, sensor signal conditioning, and telecom power rail protection requiring stable component supply and long-term lifecycle assurance.
Supply support for BZW04P23HE3/73 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The BZW04P series is part of Vishay's TransZorb® TVS platform engineered specifically for high-energy, bi-directional transient suppression in automotive, industrial, and communications infrastructure - balancing clamping precision, surge endurance, and qualification compliance.
FAQ
What is the breakdown voltage range for BZW04P23HE3/73?
The BZW04P23HE3/73 has a minimum breakdown voltage (VBR) of 25.7 V and a maximum of 29.7 V at 1.0 mA test current, per the Vishay datasheet (Document Number: 88316). This 25.7–29.7 V range ensures consistent clamping behavior across production lots while accommodating thermal and process variation. The device is specified to operate reliably within this window across its full temperature range of –55 °C to +175 °C.
Is BZW04P23HE3/73 suitable for automotive applications?
Yes, BZW04P23HE3/73 is AEC-Q101 qualified and explicitly rated for automotive use. Its HE3 suffix denotes AEC-Q101 qualification, RoHS compliance, and JESD201 Class 2 whisker resistance - meeting requirements for engine control units, body modules, and ADAS sensor interfaces. The device withstands temperature cycling, mechanical shock, and high-humidity bias testing per AEC-Q101 standards.
How does the bi-directional nature of BZW04P23HE3/73 affect its circuit placement?
The bi-directional design of BZW04P23HE3/73 eliminates polarity concerns during placement: either lead may connect to line or ground, simplifying PCB layout and reducing assembly errors. This symmetry allows direct integration into AC-coupled signal paths or ungrounded power rails - such as LIN bus lines or isolated 24 V sensor supplies - without requiring orientation verification or cathode marking on the board.
What is the maximum clamping voltage of BZW04P23HE3/73 under surge conditions?
The BZW04P23HE3/73 clamps to a maximum of 37.5 V at its rated peak pulse current of 10.7 A (10/1000 µs waveform). This value is guaranteed across all units and temperatures per the datasheet. At lower surge currents - e.g., 5 A - the clamping voltage drops to approximately 34 V, providing tighter protection margins for less severe transients while maintaining robustness against worst-case events.
Can BZW04P23HE3/73 replace uni-directional TVS diodes in existing designs?
BZW04P23HE3/73 can replace uni-directional TVS diodes only if the circuit is inherently symmetric or referenced to a stable midpoint - such as differential data lines or floating power domains. In grounded DC systems (e.g., 24 V to chassis), a uni-directional device provides lower forward voltage drop during fault conditions. Substitution requires verifying that reverse conduction during normal operation does not interfere with upstream regulators or monitoring circuits.
BZW04P23HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 10.7A
- 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)
BZW04P23HE3/73 FAQ
1.How can I place an order for BZW04P23HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P23HE3/73 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 BZW04P23HE3/73 reliable?
The price and inventory of BZW04P23HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P23HE3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P23HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P23HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P23HE3/73?
BZW04P23HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P23HE3/73 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 BZW04P23HE3/73?
For technical support, including BZW04P23HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P23HE3/73 requirements.
6.How does Aetrix verify that BZW04P23HE3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P23HE3/73 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 BZW04P23HE3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P23HE3/73?
All BZW04P23HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P23HE3/73, 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 BZW04P23HE3/73 part is unused and in its original packaging.
Return procedure for BZW04P23HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P23HE3/73 Tags
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