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Vishay General Semiconductor - Diodes Division SMBJ5.0AHE3_B/I
- Part No.:
- SMBJ5.0AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0AHE3_B/I.pdf
- Description:
- 600W,5.0V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,223
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Product details
Overview
SMBJ5.0AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on 5.0 V DC power rails and signal lines. It delivers 600 W peak pulse power (10/1000 µs), has a stand-off voltage of 5.0 V, clamps at ≤9.2 V at 65.2 A, and operates from –55 °C to +150 °C - used in automotive infotainment power input protection.
For engineers reviewing the SMBJ5.0AHE3_B/I datasheet, SMBJ5.0AHE3_B/I pinout, SMBJ5.0AHE3_B/I application, or SMBJ5.0AHE3_B/I equivalent, key selection criteria include verified unidirectional clamping behavior, AEC-Q101 qualification status, 600 W surge rating with 10/1000 µs waveform, thermal resistance (RθJA = 100 °C/W), and RoHS-compliant matte tin-plated leads solderable per J-STD-002.
Technical Context
This TVS diode operates as a voltage-clamping protection device in series with DC power inputs or parallel to sensitive IC interfaces. Its glass-passivated junction enables fast response (<1 ns), low incremental surge resistance, and stable breakdown at 6.4–7.07 V (IT = 10 mA), with maximum reverse leakage of 800 µA at VWM = 5.0 V.
The SMBJ5.0AHE3_B/I is rated for 100 A non-repetitive forward surge (8.3 ms half-sine), supports MSL Level 1 reflow (260 °C peak), and features polarity marking via cathode band. Its thermal design requires 0.2" × 0.2" copper pads per terminal to sustain full 600 W pulse capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins; matches standard 5 V logic and supply rails. |
| VBR min/max | 6.40 V / 7.07 V at IT = 10 mA - Confirmed breakdown threshold ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | ≤9.2 V at 65.2 A - Clamping voltage limits stress on downstream 5 V ICs during 600 W transient surges. |
| PPPM | 600 W (10/1000 µs) - Sustains high-energy lightning-induced or inductive-switching transients without failure. |
| IFSM | 100 A (8.3 ms half-sine) - Withstands single large current surges common in automotive load-dump scenarios. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures. |
| RθJA | 100 °C/W - Requires defined PCB copper pad area (0.2" × 0.2") to maintain thermal performance at rated power. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by molded band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line (e.g., 5 V rail); conducts surge current to ground when VIN exceeds VBR. |
| Anode (unbanded end) | Reference node | Typically tied to system ground; completes clamping path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including infotainment, body control modules, and ADAS sensor interfaces. |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 (4 kV) surge events on 5 V supply lines without degradation. |
| Glass passivated junction | Ensures stable VBR over temperature and lifetime, with <0.057 %/°C tempco for precise clamping. |
| MSL Level 1 moisture sensitivity | Allows standard SMT reflow without baking; compatible with automated placement and lead-free assembly. |
| RoHS-compliant & halogen-free option | SMBJ5.0AHE3_B/I meets global environmental compliance requirements for commercial and automotive production. |
Applications
| Automotive Power Input Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V power input of automotive USB-C charging modules against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between input VIN and GND, triggered within <1 ns to limit voltage to ≤9.2 V. Use Value: Prevents damage to USB PD controller ICs during 100 A surge events while maintaining compatibility with AEC-Q101 reliability standards. | Use Scenario: Safeguarding analog output lines of pressure sensors in factory automation PLCs exposed to relay coil switching noise. IC Role / Device Role / Timing Role: Parallel-connected TVS on 4–20 mA or 0–10 V signal outputs, clamping transients before they reach ADC front-end. Use Value: Maintains signal integrity by limiting induced spikes to <9.2 V, avoiding ADC saturation and enabling robust 12-bit measurement accuracy. |
| Consumer Device USB Port Protection | Telecom Ethernet PHY Power Rail Protection |
Use Scenario: Shielding 5 V VBUS line in smart speaker USB host ports from ESD (IEC 61000-4-2 ±15 kV contact). IC Role / Device Role / Timing Role: First-line defense TVS directly at USB connector, shunting ESD current away from USB controller and PMIC. Use Value: Achieves system-level ESD immunity without adding series impedance or affecting 480 Mbps data integrity due to low capacitance (<100 pF at 0 V). | Use Scenario: Securing 3.3 V or 5 V bias rails feeding Ethernet PHY transceivers in PoE-powered network switches. IC Role / Device Role / Timing Role: Localized TVS on PHY supply pins to suppress surges coupled through magnetics or external cabling. Use Value: Ensures uninterrupted 100BASE-TX operation during 600 W transients, preventing PHY latch-up and link dropouts. |
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; RoHS-compliant but not AEC-Q101 qualified. | Intended for commercial-grade systems only; unsuitable for automotive under-hood use. | Select when cost-sensitive consumer designs require identical clamping but lack automotive qualification requirements. |
| SMCJ5.0AHE3_A | Higher 1500 W PPPM, same VWM/VC, larger SMC (DO-214AB) package. | Used where higher surge margin is needed (e.g., industrial motor drives), but requires PCB layout change. | Choose when system-level surge testing exceeds 600 W and board space allows larger footprint. |
Compared with SMBJ5.0A-E3/52, the SMBJ5.0AHE3_B/I adds AEC-Q101 qualification for automotive deployment; compared with SMCJ5.0AHE3_A, it trades surge capacity for compact SMB footprint - critical for space-constrained ECUs and portable electronics.
Availability
SMBJ5.0AHE3_B/I is available at Aetrix Electronics and suitable for automotive infotainment, industrial sensor interface, and consumer USB power protection requiring stable component supply across multi-year production cycles.
Supply support for SMBJ5.0AHE3_B/I 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 and automotive-grade validation.
The SMBJ series is engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure - delivering consistent clamping performance under harsh thermal and surge conditions.
FAQ
What is the clamping voltage of SMBJ5.0AHE3_B/I at its rated peak pulse current?
The SMBJ5.0AHE3_B/I clamps to a maximum of 9.2 V at its specified peak pulse current of 65.2 A (10/1000 µs waveform). This value is measured under standardized test conditions with 0.2" × 0.2" copper pads per terminal and confirms the device's ability to protect 5 V systems without exceeding safe voltage thresholds for downstream ICs. The SMBJ5.0AHE3_B/I maintains this clamping performance across its full operating temperature range.
Is SMBJ5.0AHE3_B/I qualified for automotive applications?
Yes, SMBJ5.0AHE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation revision 09-Jan-2024 (Document Number: 88392). This qualification validates its reliability for automotive use cases including engine control units, body electronics, and infotainment systems. The SMBJ5.0AHE3_B/I undergoes stress testing for temperature cycling, humidity, and mechanical shock per AEC-Q101 requirements.
What is the maximum reverse leakage current for SMBJ5.0AHE3_B/I at its stand-off voltage?
The SMBJ5.0AHE3_B/I exhibits a maximum reverse leakage current (ID) of 800 µA at its stand-off voltage (VWM) of 5.0 V and ambient temperature of 25 °C. This low leakage ensures minimal power loss in always-on 5 V circuits and avoids false triggering in high-impedance sensing nodes. The SMBJ5.0AHE3_B/I maintains leakage below 1 mA up to +85 °C per derating curves in the datasheet.
Does SMBJ5.0AHE3_B/I have a bidirectional variant?
No, SMBJ5.0AHE3_B/I is strictly unidirectional, indicated by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., SMBJ5.0CA), which provide symmetrical clamping in both directions and omit polarity marking. The SMBJ5.0AHE3_B/I is optimized for DC rail protection where polarity is fixed and ground-referenced clamping is required.
What is the thermal resistance junction-to-ambient for SMBJ5.0AHE3_B/I?
The SMBJ5.0AHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended pad layout: 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes still air convection and defines the maximum power dissipation (5.0 W at TA = 50 °C) achievable without exceeding the 150 °C maximum junction temperature. The SMBJ5.0AHE3_B/I's RθJL is 20 °C/W for improved heat transfer to PCB traces.
SMBJ5.0AHE3_B/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- 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/I FAQ
1.How can I place an order for SMBJ5.0AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0AHE3_B/I 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/I reliable?
The price and inventory of SMBJ5.0AHE3_B/I 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/I is usually 5 days.
3.What payment methods are accepted for SMBJ5.0AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0AHE3_B/I?
SMBJ5.0AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0AHE3_B/I 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/I?
For technical support, including SMBJ5.0AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0AHE3_B/I requirements.
6.How does Aetrix verify that SMBJ5.0AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0AHE3_B/I 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/I meets industry standards.
7.What is the process for return or replacement of SMBJ5.0AHE3_B/I?
All SMBJ5.0AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0AHE3_B/I, 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/I part is unused and in its original packaging.
Return procedure for SMBJ5.0AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0AHE3_B/I Tags
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