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Vishay General Semiconductor - Diodes Division SMBJ5.0AHE3/52
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- Part No.:
- SMBJ5.0AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0AHE3/52.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,425
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Product details
Overview
SMBJ5.0AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection of sensitive ICs, MOSFETs, and signal lines in consumer, industrial, and telecom systems. It features a 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), and clamps transients to ≤9.2 V at 65.2 A IPPM.
For engineers reviewing the SMBJ5.0AHE3/52 datasheet, SMBJ5.0AHE3/52 pinout, SMBJ5.0AHE3/52 application, or SMBJ5.0AHE3/52 equivalent, this device is selected for robust ESD and surge immunity in low-voltage DC rails, automotive body electronics, and sensor interface protection where fast response (<1 ns), low clamping voltage, and AEC-Q101 qualification are required.
Technical Context
The SMBJ5.0AHE3/52 operates as a unidirectional avalanche diode with cathode-band polarity marking. Its junction is glass passivated for stable leakage performance and reliability under repetitive surge stress. The device responds to transients within <1 ns and maintains clamping performance across -55 °C to +150 °C operating junction temperature.
It delivers 600 W peak pulse power per 10/1000 µs waveform at TA = 25 °C, derates linearly above 25 °C with RθJA = 100 °C/W, and supports 100 A non-repetitive forward surge current (8.3 ms half-sine). Its 5.0 µA max reverse leakage at VWM ensures minimal standby power loss in battery-powered applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse working voltage before clamping begins; sets upper limit for protected circuit DC rail. |
| VBR (min/max) | 6.40 V / 7.07 V at IT = 10 mA - Confirmed breakdown range ensures reliable turn-on margin above VWM with process tolerance. |
| VC @ IPPM | 9.2 V at 65.2 A - Clamping voltage during 600 W surge; defines worst-case overvoltage seen by downstream components. |
| PPPM | 600 W (10/1000 µs) - Peak transient energy handling capacity; validated for IEC 61000-4-5 Level 3/4 surge immunity. |
| ID @ VWM | 800 µA max - Low reverse leakage preserves battery life and avoids false triggering in high-impedance sensing paths. |
| TJ max | +150 °C - Enables operation in under-hood automotive and industrial environments without thermal derating penalties. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, MSL Level 1 (260 °C reflow peak), RoHS-compliant and AEC-Q101 qualified. Cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes conduction path during reverse-biased transient clamp. |
| Cathode | High-side connection point | Connected to protected line (e.g., 5 V rail); blocks normal operation, avalanches during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge testing up to 4 kV (line-to-earth) without degradation. |
| Clamping voltage ≤9.2 V at 65.2 A | Protects 5 V logic interfaces (e.g., UART, I²C, CAN) by limiting fault voltage below absolute maximum ratings. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive body electronics including lighting control, door modules, and sensor hubs. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving system immunity. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without moisture sensitivity concerns or baking requirements. |
Applications
| Automotive Body Control Module | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and microcontroller GPIOs from load-dump and inductive switching spikes in door lock actuators. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 5 V supply rail and ground, clamping transients before they reach MCU pins. Use Value: Prevents latch-up and permanent damage to 5 V-tolerant peripherals while maintaining <1 µA leakage at nominal rail voltage. |
Use Scenario: Shielding analog output lines (0–10 V, 4–20 mA) of pressure/temperature sensors from ESD and field wiring surges. IC Role / Device Role / Timing Role: Standoff-mode protector on signal line input, conducting only during >6.4 V events with sub-nanosecond response. Use Value: Ensures signal integrity remains intact during 8 kV contact ESD (IEC 61000-4-2) with no baseline offset or drift. |
| USB Power Delivery Port | Consumer Appliance Motor Driver |
|
Use Scenario: Safeguarding VBUS line in USB-C PD sink applications against hot-plug transients and cable-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 5 V input path, coordinated with internal OVP circuits of PD controller. Use Value: Limits VBUS excursion to ≤9.2 V during 10/1000 µs surges, preventing damage to buck converter FETs and gate drivers. |
Use Scenario: Suppressing flyback voltage spikes from brushed DC motor commutation in smart home vacuum cleaners and fans. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals, absorbing inductive energy during PWM turn-off. Use Value: Eliminates need for snubber RC networks, reducing BOM count and PCB area while sustaining 100 A surge capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0A-E3/52 | Same electrical specs; commercial-grade (non-AEC-Q101), RoHS-compliant, same SMB package. | Lacks automotive qualification; suitable for consumer/industrial designs without AEC compliance mandates. | Select when cost sensitivity outweighs automotive qualification requirements and full temperature range validation is not needed. |
| SMCJ5.0AHE3/52 | Higher 1500 W PPPM rating, larger SMC (DO-214AB) package, identical VWM/VBR/VC specs. | Better suited for higher-energy surges (e.g., 10/1000 µs >1 kV tests); requires larger PCB footprint and layout revision. | Choose when system-level surge testing exceeds 600 W capability or when design margin must accommodate future test upgrades. |
Compared with SMBJ5.0A-E3/52, the SMBJ5.0AHE3/52 adds AEC-Q101 qualification for automotive use without changing electrical behavior; versus SMCJ5.0AHE3/52, it trades surge headroom for compact SMB footprint-critical for space-constrained modules like ECUs and sensor nodes.
Availability
SMBJ5.0AHE3/52 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB power delivery ports, and consumer appliance motor drivers requiring stable component supply with AEC-Q101 assurance and long-term lifecycle support.
Supply support for SMBJ5.0AHE3/52 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 validation.
The SMBJ series targets surface-mount transient suppression in space-constrained, high-reliability applications-including automotive, industrial automation, and communications-where consistent clamping, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMBJ5.0AHE3/52 and how is it measured?
The SMBJ5.0AHE3/52 has a maximum clamping voltage (VC) of 9.2 V, measured at its rated peak pulse current (IPPM) of 65.2 A using a 10/1000 µs double-exponential surge waveform. This value is guaranteed per Vishay's datasheet (Document Number 88392, Rev. 09-Jan-2024) and reflects worst-case overvoltage imposed on protected circuitry during standardized surge events. The SMBJ5.0AHE3/52 achieves this with low incremental resistance, ensuring predictable voltage limiting across its operational temperature range.
Is SMBJ5.0AHE3/52 suitable for automotive applications?
Yes, SMBJ5.0AHE3/52 is AEC-Q101 qualified, as confirmed by its "HE3" suffix and Vishay's documentation. It meets the stress test requirements for automotive electronics-including temperature cycling, humidity bias, and mechanical shock-and is rated for operation from -55 °C to +150 °C junction temperature. The SMBJ5.0AHE3/52 is commonly deployed in body control modules, lighting drivers, and sensor nodes where robust transient immunity and qualification traceability are required.
How does SMBJ5.0AHE3/52 differ from bidirectional variants like SMBJ5.0CA?
The SMBJ5.0AHE3/52 is unidirectional, meaning it conducts only during reverse-bias overvoltage events and blocks forward current beyond its VF (~3.5 V at 50 A). In contrast, SMBJ5.0CA is bidirectional, providing symmetrical clamping for AC-coupled or floating signal lines. The SMBJ5.0AHE3/52 uses a cathode band for polarity identification, while SMBJ5.0CA has no marking. For DC rails like 5 V supplies, SMBJ5.0AHE3/52 offers lower leakage and tighter VBR control than its bidirectional counterpart.
What is the thermal resistance of SMBJ5.0AHE3/52 and how does it affect power dissipation?
The SMBJ5.0AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended copper pads (0.2" × 0.2"). This means a 5.0 W steady-state power dissipation would raise junction temperature by ~500 °C above ambient-so the device is intended for transient, not continuous, power handling. Its 5.0 W rating applies only at TA = 50 °C with infinite heatsink conditions; real-world derating follows Fig. 2 in the datasheet. The SMBJ5.0AHE3/52 relies on short-duration surge absorption rather than sustained thermal management.
Can SMBJ5.0AHE3/52 be used in place of SMAJ5.0AHE3?
No-SMBJ5.0AHE3/52 and SMAJ5.0AHE3 are not interchangeable due to differing package sizes and power ratings. The SMAJ series uses the smaller SMA (DO-214AC) package with 400 W PPPM, while SMBJ5.0AHE3/52 uses the larger SMB (DO-214AA) package with 600 W PPPM and higher IPPM. Substituting SMBJ5.0AHE3/52 for SMAJ5.0AHE3 may require PCB pad redesign and alters surge margin. The SMBJ5.0AHE3/52 is not a drop-in replacement; both share functional similarity but differ in mechanical fit and energy-handling capability.
SMBJ5.0AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ5.0AHE3/52 FAQ
1.How can I place an order for SMBJ5.0AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0AHE3/52 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 SMBJ5.0AHE3/52 reliable?
The price and inventory of SMBJ5.0AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ5.0AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ5.0AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0AHE3/52?
SMBJ5.0AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0AHE3/52 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 SMBJ5.0AHE3/52?
For technical support, including SMBJ5.0AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0AHE3/52 requirements.
6.How does Aetrix verify that SMBJ5.0AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0AHE3/52 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 SMBJ5.0AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ5.0AHE3/52?
All SMBJ5.0AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0AHE3/52, 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 SMBJ5.0AHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ5.0AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0AHE3/52 Tags
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