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Vishay General Semiconductor - Diodes Division SMBJ7.0AHE3_B/H
- Part No.:
- SMBJ7.0AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ7.0AHE3_B/H.pdf
- Description:
- 600W,7.0V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,890
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Product details
Overview
SMBJ7.0AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 7.0 V stand-off voltage (VWM), 7.78–8.60 V breakdown voltage (VBR) at 10 mA, 12.0 V maximum clamping voltage (VC) at 50.0 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ7.0AHE3_B/H datasheet, SMBJ7.0AHE3_B/H pinout, SMBJ7.0AHE3_B/H application, or SMBJ7.0AHE3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), clamping performance under 50 A surge, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device in series with DC power rails or parallel to sensitive inputs. Its glass-passivated junction enables fast response (<1 ns) to ESD and lightning-induced transients, while its low incremental surge resistance ensures minimal voltage overshoot during 10/1000 µs surges.
The SMBJ7.0AHE3_B/H is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (260 °C peak reflow), and carries AEC-Q101 qualification-confirmed by HE3 suffix-making it suitable for automotive power electronics where reliability under thermal cycling and humidity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 7.78 V / 8.60 V at IT = 10 mA - Confirmed breakdown range ensures predictable turn-on across production lots. |
| VC @ IPPM | 12.0 V at 50.0 A - Clamped voltage during worst-case 10/1000 µs surge; limits stress on downstream 5 V or 3.3 V logic. |
| PPPM | 600 W - Peak pulse power handling capability with 0.01 % duty cycle; supports repetitive surge events in motor drives. |
| ID @ VWM | 200 µA max - Low leakage preserves efficiency in battery-powered sensor nodes and standby circuits. |
| TJ max | +150 °C - Enables use in under-hood automotive modules and industrial enclosures without derating at 85 °C ambient. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs heatsinking requirements. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-banded unidirectional configuration. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected line ground or low-side return path. | Provides low forward voltage drop (VF ≤ 3.5 V at 50 A) during surge conduction; must be routed with low-inductance trace. |
| Cathode | Current exit terminal in forward bias; marked with band, connected to positive rail or signal line to be protected. | Defines polarity-sensitive placement; reverse connection renders device non-functional for overvoltage clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock per JESD22 standards. |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without degradation when mounted per recommended pad layout. |
| Fast response time | <1 ns turn-on enables suppression of ESD events (IEC 61000-4-2 ±8 kV contact) before IC latch-up occurs. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without popcorn cracking or delamination during PCB assembly. |
| Glass passivated junction | Improves long-term stability of VBR and leakage under high-humidity environments (e.g., outdoor telecom enclosures). |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 12 V battery line in engine control unit exposed to load dump (ISO 7637-2 Pulse 5a, 60 V/100 ms). IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input to clamp transients before regulation stage. Use Value: Limits voltage to ≤12.0 V during 50 A surge, preventing overvoltage damage to 36 V-rated buck controller ICs. |
Use Scenario: Analog output line (4–20 mA) from pressure sensor in factory automation PLC module. IC Role / Device Role / Timing Role: TVS mounted across signal and ground to absorb induced surges from nearby relay switching. Use Value: Clamps transients within 1 ns to protect precision op-amp input stages without distorting low-frequency analog signals. |
| Consumer USB Power Input Protection | Telecom Ethernet Port Surge Suppression |
|
Use Scenario: 5 V USB-C power input on smart home hub subjected to ESD and hot-swap transients. IC Role / Device Role / Timing Role: TVS placed between VBUS and GND to shunt ESD energy away from USB PD controller and port switch. Use Value: 200 µA max leakage avoids battery drain in always-on standby mode; 12.0 V VC prevents latch-up in 5 V tolerant ICs. |
Use Scenario: Secondary-side protection on isolated Ethernet PHY transformer center taps in PoE-powered access point. IC Role / Device Role / Timing Role: Unidirectional TVS on DC bias line to suppress common-mode surges coupled via magnetics. Use Value: 600 W rating withstands IEC 61000-4-5 combination wave (10/700 µs) without failure after repeated strikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A-E3/52 | Commercial-grade (non-AEC-Q101), same electrical specs and SMB package; no automotive qualification. | Limited to consumer/industrial designs without automotive reliability requirements. | Select when cost sensitivity outweighs need for AEC-Q101 validation and extended temperature operation. |
| SMCJ7.0AHE3_A/H | Same AEC-Q101 qualification but in larger SMC (DO-214AB) package; higher IPPM (82.5 A) and lower RθJA (50 °C/W). | Better thermal performance for high-duty-cycle surge environments; requires larger PCB footprint. | Choose when system-level surge repetition rate exceeds 0.01 % duty cycle or ambient exceeds 105 °C. |
Compared with SMBJ7.0A-E3/52, the SMBJ7.0AHE3_B/H adds automotive qualification and extended temperature support without changing clamping behavior; versus SMCJ7.0AHE3_A/H, it trades thermal headroom and surge current capacity for space-constrained layouts.
Availability
SMBJ7.0AHE3_B/H is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface protection, and consumer USB power input circuits requiring stable component supply with AEC-Q101 assurance.
Supply support for SMBJ7.0AHE3_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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for robust transient suppression in harsh environments-designed to meet automotive, industrial, and telecom surge immunity standards while supporting high-volume SMT manufacturing.
FAQ
What is the clamping voltage of SMBJ7.0AHE3_B/H at its rated peak pulse current?
The SMBJ7.0AHE3_B/H has a maximum clamping voltage (VC) of 12.0 V at 50.0 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and guarantees that downstream components see no more than 12.0 V during worst-case surge events, making SMBJ7.0AHE3_B/H suitable for protecting 5 V and 3.3 V logic interfaces without additional voltage margining.
Is SMBJ7.0AHE3_B/H qualified for automotive applications?
Yes, SMBJ7.0AHE3_B/H is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number. It undergoes stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life per AEC-Q101 Rev D. This qualification makes SMBJ7.0AHE3_B/H appropriate for under-hood and cabin electronics where reliability across -40 °C to +125 °C ambient is required.
What is the standoff voltage and breakdown range for SMBJ7.0AHE3_B/H?
The SMBJ7.0AHE3_B/H has a reverse stand-off voltage (VWM) of 7.0 V and a breakdown voltage (VBR) range of 7.78 V to 8.60 V at 10 mA test current. This 7.0 V VWM ensures compatibility with 5 V and 7 V nominal systems, while the tight VBR window provides consistent clamping onset across production units-critical for predictable protection in safety-critical designs.
Does SMBJ7.0AHE3_B/H support lead-free reflow soldering?
Yes, SMBJ7.0AHE3_B/H meets J-STD-020 MSL Level 1 and is rated for lead-free reflow with a maximum peak temperature of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD22-B102 solderability standards, and the molding compound satisfies UL 94 V-0 flammability requirements-ensuring robust assembly yield in modern SMT lines.
How does the thermal resistance of SMBJ7.0AHE3_B/H affect its power handling in real-world PCB layouts?
The SMBJ7.0AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. In practice, this means a 5.0 W steady-state dissipation raises junction temperature by 500 °C above ambient-so continuous DC power handling is limited to ~50 mW. However, its 600 W peak pulse rating applies only to short-duration transients (≤1 ms), where thermal mass dominates over steady-state conduction.
SMBJ7.0AHE3_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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 50A
- 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)
SMBJ7.0AHE3_B/H FAQ
1.How can I place an order for SMBJ7.0AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ7.0AHE3_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 SMBJ7.0AHE3_B/H reliable?
The price and inventory of SMBJ7.0AHE3_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 SMBJ7.0AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ7.0AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ7.0AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ7.0AHE3_B/H?
SMBJ7.0AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ7.0AHE3_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 SMBJ7.0AHE3_B/H?
For technical support, including SMBJ7.0AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ7.0AHE3_B/H requirements.
6.How does Aetrix verify that SMBJ7.0AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ7.0AHE3_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 SMBJ7.0AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ7.0AHE3_B/H?
All SMBJ7.0AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ7.0AHE3_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 SMBJ7.0AHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ7.0AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ7.0AHE3_B/H Tags
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