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Vishay General Semiconductor - Diodes Division SMBJ5.0AHE3_B/H
- Part No.:
- SMBJ5.0AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0AHE3_B/H.pdf
- Description:
- 600W,5.0V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,085
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Product details
Overview
SMBJ5.0AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for primary overvoltage protection of 5.0 V DC power rails and signal lines. It delivers 600 W peak pulse power (10/1000 µs), clamps transients to ≤9.2 V at 65.2 A, and features 6.4–7.07 V breakdown voltage at 10 mA test current. Used in automotive ECUs, industrial sensor interfaces, and USB power input stages.
For engineers reviewing the SMBJ5.0AHE3_B/H datasheet, SMBJ5.0AHE3_B/H pinout, SMBJ5.0AHE3_B/H application, or SMBJ5.0AHE3_B/H equivalent, key selection criteria include its 5.0 V stand-off voltage, AEC-Q101 qualification status, 800 µA max reverse leakage at VWM, 150 °C max junction temperature, and compatibility with automated SMT placement on standard PCB pads.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging an avalanche breakdown mechanism to divert surge energy away from protected circuitry. Its glass-passivated junction ensures stable VBR and low leakage, while the SMB package provides thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead).
The SMBJ5.0AHE3_B/H is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports MSL Level 1 moisture sensitivity, and meets UL 497B recognition for protector classification. Its cathode band marking aligns with industry-standard polarity identification for unidirectional devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail tolerance margin. |
| VBR @ IT=10 mA | 6.4–7.07 V - Breakdown voltage range at 10 mA test current; ensures reliable turn-on during overvoltage events. |
| VC @ IPPM=65.2 A | ≤9.2 V - Clamping voltage under 600 W 10/1000 µs surge; limits stress on downstream 5 V logic or analog ICs. |
| IPPM | 65.2 A - Peak pulse current capability at rated power; determines survivability against IEC 61000-4-5 Level 4 surges. |
| PPPM | 600 W - Peak pulse power rating with 10/1000 µs waveform; defines transient energy absorption capacity. |
| ID @ VWM | ≤800 µA - Max reverse leakage at 5.0 V; minimizes standby power loss and avoids false triggering in low-current circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), cathode band marked on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop during positive transients on cathode side. |
| Cathode | High-side connection point | Connected to protected line (e.g., 5 V rail); avalanche conduction occurs when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensors requiring reliability under thermal cycling and vibration. |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 combination wave surges up to ±1 kV open-circuit / ±500 A short-circuit without degradation. |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage drift over time, and robustness against humidity and contamination in harsh environments. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles without preconditioning; eliminates moisture-related popcorning risk. |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes overvoltage overshoot during fast transients, protecting sensitive 5 V microcontrollers and interface ICs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V supply lines feeding CAN transceivers and LIN bus controllers in vehicle body control modules. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VIN and GND, activated within <1 ps of overvoltage onset. Use Value: Limits transient voltage to ≤9.2 V during load dump or ISO 7637-2 Pulse 5a events, preserving communication IC integrity. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA transmitter outputs) from ESD and inductive switching noise in factory automation systems. IC Role / Device Role / Timing Role: Standoff protection element mounted at connector entry point, shunting surges before reaching op-amp conditioning stage. Use Value: Maintains signal fidelity by suppressing >8 kV contact ESD per IEC 61000-4-2 with sub-10 ns response and no latch-up. |
| USB Type-A Power Input Protection | Consumer Device DC Jack Protection |
Use Scenario: Safeguarding 5 V VBUS line in USB host ports against reverse polarity misconnection and hot-plug surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on upstream side of USB power switch, triggered before internal FET gate oxide failure. Use Value: Prevents permanent damage to USB controller ICs during 100 V/1 A surge events per USB PD compliance testing. |
Use Scenario: Securing 5 V input of portable medical monitors connected via barrel-jack adapters subject to accidental AC mains exposure. IC Role / Device Role / Timing Role: First-line defense in series with input fuse, conducting full surge current to ground before upstream regulator shutdown. Use Value: Enables fail-safe operation by clamping 600 W surges without thermal runaway, verified across -40 °C to +125 °C ambient. |
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 and SMB package; differs only in packaging format (7" reel, code "52") and lacks AEC-Q101 qualification. | Approved for commercial-grade industrial and consumer designs but not automotive production. | Select when AEC-Q101 is not required and cost optimization is prioritized over automotive qualification. |
| SMBJ5.0CAHE3_B/H | Bidirectional variant with same VWM (5.0 V), VBR (6.4–7.25 V), and PPPM (600 W), but symmetrical clamping in both polarities. | Required for AC-coupled or differential signal lines (e.g., RS-485, CAN FD) where negative transients must also be suppressed. | Choose only if bidirectional protection is needed; not a drop-in replacement due to polarity and layout implications. |
Compared with SMBJ5.0A-E3/52, the SMBJ5.0AHE3_B/H adds AEC-Q101 validation for automotive use without altering electrical performance; compared with SMBJ5.0CAHE3_B/H, it provides lower capacitance and simpler grounding for unidirectional DC rails but cannot handle reverse-polarity surges.
Availability
SMBJ5.0AHE3_B/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and USB power input protection requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for SMBJ5.0AHE3_B/H 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, power efficiency, and automotive-grade qualification.
The SMBJ series was developed specifically for robust, high-energy transient suppression in space-constrained surface-mount applications across automotive, industrial, and communications infrastructure.
FAQ
What is the maximum clamping voltage of SMBJ5.0AHE3_B/H at its rated peak pulse current?
The SMBJ5.0AHE3_B/H has a maximum clamping voltage (VC) of 9.2 V at its peak pulse current (IPPM) of 65.2 A, measured under the standardized 10/1000 µs waveform. This value ensures that protected 5 V circuits remain within safe operating limits during surge events. The SMBJ5.0AHE3_B/H maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ5.0AHE3_B/H qualified for automotive applications?
Yes, SMBJ5.0AHE3_B/H is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's official datasheet (Document Number: 88392, Revision: 09-Jan-2024). This qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock, making SMBJ5.0AHE3_B/H suitable for under-hood and cabin electronics in production vehicles.
What does the "_B/H" suffix indicate in SMBJ5.0AHE3_B/H?
The "_B/H" suffix in SMBJ5.0AHE3_B/H denotes the packaging configuration: "H" specifies the preferred package code for 7-inch diameter plastic tape and reel, and "B" indicates the revision level of the manufacturing lot. This matches Vishay's ordering information table, where SMBJ5.0AHE3_B/H is explicitly listed with unit weight 0.106 g and base quantity 750 units per reel.
How does SMBJ5.0AHE3_B/H differ from the standard SMBJ5.0A-E3 part?
The SMBJ5.0AHE3_B/H shares identical electrical characteristics and SMB package dimensions with SMBJ5.0A-E3, but adds AEC-Q101 qualification and uses a different reel packaging code ("H" vs "52"). Unlike SMBJ5.0A-E3, the SMBJ5.0AHE3_B/H is approved for automotive production use and undergoes additional reliability screening per JESD22 standards.
Can SMBJ5.0AHE3_B/H be used in bidirectional signal protection applications?
No, SMBJ5.0AHE3_B/H is a unidirectional TVS diode, indicated by its "A" suffix and cathode band marking. For bidirectional protection (e.g., RS-485, CAN, or AC lines), the SMBJ5.0CAHE3_B/H variant must be used instead. Using SMBJ5.0AHE3_B/H in bidirectional configurations risks failure during negative transients, as it blocks conduction below VBR in the reverse direction.
SMBJ5.0AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ5.0AHE3_B/H FAQ
1.How can I place an order for SMBJ5.0AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0AHE3_B/H 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_B/H reliable?
The price and inventory of SMBJ5.0AHE3_B/H 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_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ5.0AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0AHE3_B/H?
SMBJ5.0AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0AHE3_B/H 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_B/H?
For technical support, including SMBJ5.0AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0AHE3_B/H requirements.
6.How does Aetrix verify that SMBJ5.0AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0AHE3_B/H 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_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ5.0AHE3_B/H?
All SMBJ5.0AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0AHE3_B/H, 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_B/H part is unused and in its original packaging.
Return procedure for SMBJ5.0AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0AHE3_B/H Tags
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