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Vishay General Semiconductor - Diodes Division SMBJ5.0AHM3/I
- Part No.:
- SMBJ5.0AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0AHM3/I.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,219
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Product details
Overview
SMBJ5.0AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising voltage transients on power and signal lines. 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 to ≤9.2 V at 65.2 A peak surge current - deployed in automotive ECUs, industrial sensor interfaces, and USB/RS-485 protection circuits.
For engineers reviewing the SMBJ5.0AHM3/I datasheet, SMBJ5.0AHM3/I pinout, SMBJ5.0AHM3/I application, or SMBJ5.0AHM3/I equivalent, this page delivers verified electrical specs, thermal derating behavior, AEC-Q101 qualification status, MSL Level 1 reflow compatibility, and design-meaningful clamping performance data - all specific to the HM3 halogen-free, RoHS-compliant automotive-grade variant.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp with glass-passivated junction, optimized for sub-100 ns response to ESD and lightning-induced surges. Its low incremental surge resistance and 0.057 %/°C VBR temperature coefficient ensure stable clamping across -55 °C to +150 °C junction range.
Rated for 100 A non-repetitive forward surge (8.3 ms half-sine), it delivers 600 W peak pulse power under standardized 10/1000 µs waveform with 0.01 % duty cycle. Thermal resistance is 100 °C/W (junction-to-ambient) on 5.0 mm × 5.0 mm copper pads, supporting robust PCB-level surge handling without external heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected line DC bias. |
| VBR @ IT = 10 mA | 6.4–7.07 V - Breakdown onset range; defines minimum clamping threshold under controlled test conditions. |
| VC @ IPPM = 65.2 A | ≤9.2 V - Clamped voltage during 600 W transient; determines maximum stress imposed on downstream ICs. |
| IPPM | 65.2 A - Peak surge current capability under 10/1000 µs waveform; quantifies single-event energy absorption capacity. |
| PPPM | 600 W - Peak pulse power rating; defines transient energy handling per IEC 61000-4-5 Level 4 compliance margin. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| MSL Level | Level 1 (J-STD-020) - Supports standard reflow profiles up to 260 °C peak without preconditioning. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR. |
| Anode (unbanded end) | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails. |
| 600 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and telecom equipment. |
| Low clamping voltage (≤9.2 V) | Protects 5 V logic ICs, microcontrollers, and transceivers without requiring additional series impedance. |
| MSL Level 1, 260 °C peak reflow | Enables direct placement into high-volume SMT assembly without moisture sensitivity concerns. |
| Halogen-free, RoHS-compliant (HM3 suffix) | Fulfills environmental compliance mandates for global OEM supply chains and green manufacturing programs. |
Applications
| Automotive Body Control Module | Industrial RS-485 Communication Port |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and door module microcontrollers from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VBAT-line and ground, triggered only during positive overvoltage events. Use Value: Limits transients to ≤9.2 V, preventing latch-up or gate oxide damage in 5 V tolerant CAN/LIN ICs while surviving 100 A surge pulses. |
Use Scenario: Shielding RS-485 transceiver inputs against ESD and cable-induced surges in factory automation networks. IC Role / Device Role / Timing Role: Line-side transient suppressor mounted directly at connector entry point, shunting surge energy before reaching PHY layer. Use Value: Achieves <100 ns response and ≤9.2 V clamping, preserving signal integrity on differential pairs and enabling >25 kV HBM ESD robustness. |
| USB 2.0 Power Input Protection | Smart Meter AC/DC Power Supply Input |
|
Use Scenario: Safeguarding USB port VBUS line against hot-plug transients and adapter overvoltage faults. IC Role / Device Role / Timing Role: Standoff-rated TVS (5.0 V) placed in series with 5 V rail, conducting only above 6.4 V to avoid false triggering. Use Value: Maintains <1 µA leakage at 5.0 V while clamping 600 W surges - critical for battery-powered devices with strict quiescent current budgets. |
Use Scenario: Front-end protection of switch-mode power supply input stage in utility smart meters exposed to lightning-induced grid surges. IC Role / Device Role / Timing Role: Primary surge suppression element on AC rectified DC bus, absorbing energy before bulk capacitor and controller IC. Use Value: Withstands repeated 65.2 A surges and operates reliably up to +150 °C ambient - essential for sealed, convection-cooled meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0AHE3/I | RoHS-compliant but not halogen-free; same electrical specs and AEC-Q101 qualification. | Acceptable for commercial automotive modules where halogen content is unrestricted. | Select SMBJ5.0AHM3/I when halogen-free compliance is mandated by Tier 1 OEM specifications. |
| SMAJ5.0A-M3 | Lower 400 W PPPM, SMA package (smaller footprint, higher RθJA = 140 °C/W). | Suitable for space-constrained consumer electronics with lower surge exposure. | Choose SMBJ5.0AHM3/I over SMAJ5.0A-M3 when 600 W surge margin or automotive qualification is required. |
Compared with SMBJ5.0AHE3/I, the SMBJ5.0AHM3/I adds halogen-free construction without sacrificing clamping performance or thermal rating; versus SMAJ5.0A-M3, it provides 50 % higher pulse power and superior thermal dissipation in the larger SMB package - making it the preferred choice for mission-critical automotive and industrial surge protection.
Availability
SMBJ5.0AHM3/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial communication ports, smart meter power supplies, and USB interface protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMBJ5.0AHM3/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 targets high-energy transient suppression in harsh environments, with the HM3 variant specifically engineered to meet halogen-free and AEC-Q101 requirements for next-generation automotive electronics.
FAQ
What is the clamping voltage of SMBJ5.0AHM3/I at its rated peak pulse current?
The SMBJ5.0AHM3/I clamps to a maximum of 9.2 V when subjected to its rated peak pulse current of 65.2 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and reflects worst-case device behavior at TA = 25 °C on recommended PCB pad layout - critical for ensuring downstream 5 V ICs remain within absolute maximum ratings during surge events.
Is SMBJ5.0AHM3/I qualified for automotive use?
Yes, SMBJ5.0AHM3/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code structure (HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified). It is rated for operation from -55 °C to +150 °C and validated for mechanical shock, temperature cycling, and humidity testing per automotive reliability standards - making it suitable for under-hood and chassis-mounted applications.
How does the HM3 suffix differ from the HE3 suffix in SMBJ5.0A variants?
The HM3 suffix indicates halogen-free, RoHS-compliant, and AEC-Q101 qualified construction, whereas HE3 is RoHS-compliant and AEC-Q101 qualified but not halogen-free. Both share identical electrical characteristics, thermal ratings, and packaging dimensions; the distinction lies solely in material composition - HM3 meets stricter environmental mandates such as JIG-170 and EU ELV Directive Annex II.
What is the maximum reverse leakage current of SMBJ5.0AHM3/I at its stand-off voltage?
At VWM = 5.0 V and TA = 25 °C, the SMBJ5.0AHM3/I exhibits a maximum reverse leakage current (ID) of 800 µA. This low leakage ensures minimal power loss in always-on systems like automotive body controllers and supports long-term battery life in portable instrumentation powered through protected 5 V rails.
Can SMBJ5.0AHM3/I be used in bidirectional transient protection applications?
No - SMBJ5.0AHM3/I is strictly unidirectional, as indicated by its "A" suffix and cathode band marking. For bidirectional protection, Vishay specifies the "CA" suffix (e.g., SMBJ5.0CA), which has symmetrical breakdown in both polarities. Using SMBJ5.0AHM3/I in reverse-biased configurations risks permanent junction damage due to lack of reverse avalanche capability.
SMBJ5.0AHM3/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:
- 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:
- 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)
SMBJ5.0AHM3/I FAQ
1.How can I place an order for SMBJ5.0AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0AHM3/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 SMBJ5.0AHM3/I reliable?
The price and inventory of SMBJ5.0AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ5.0AHM3/I is usually 5 days.
3.What payment methods are accepted for SMBJ5.0AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0AHM3/I?
SMBJ5.0AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0AHM3/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 SMBJ5.0AHM3/I?
For technical support, including SMBJ5.0AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0AHM3/I requirements.
6.How does Aetrix verify that SMBJ5.0AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0AHM3/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 SMBJ5.0AHM3/I meets industry standards.
7.What is the process for return or replacement of SMBJ5.0AHM3/I?
All SMBJ5.0AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0AHM3/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 SMBJ5.0AHM3/I part is unused and in its original packaging.
Return procedure for SMBJ5.0AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0AHM3/I Tags
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