My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ7.0AHE3/5B
;;2.jpg)
- Part No.:
- SMBJ7.0AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ7.0AHE3/5B.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,075
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ7.0AHE3/5B 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 DC power rails 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 (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ7.0AHE3/5B datasheet, SMBJ7.0AHE3/5B pinout, SMBJ7.0AHE3/5B application, or SMBJ7.0AHE3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and compliance with UL 497B surge protector classification.
Technical Context
This TVS diode operates as a clamping device in reverse-biased configuration, conducting only when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance and low leakage (ID ≤ 800 µA at VWM), while the low incremental surge resistance enables rapid energy absorption during ESD or lightning-induced surges.
The SMBJ7.0AHE3/5B is rated for 600 W peak pulse power under 10/1000 µs waveform with 0.01 % duty cycle, and supports 100 A non-repetitive forward surge current (IFSM) per 8.3 ms half-sine wave. Its MSL Level 1 rating (JEDEC J-STD-020) and matte tin-plated leads ensure compatibility with lead-free reflow processes up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - maximum continuous reverse operating voltage before clamping begins; sets safe DC rail margin for 5 V–7 V systems. |
| VBR min/max | 7.78 V / 8.60 V at IT = 10 mA - defines precise breakdown window for predictable clamping onset across temperature and unit variation. |
| VC @ IPPM | 12.0 V at IPPM = 50.0 A - clamping voltage under standardized 10/1000 µs surge; determines protected circuit's maximum transient overvoltage exposure. |
| PPPM | 600 W - peak transient power handling capability; validates robustness against IEC 61000-4-5 Level 4 surges (4 kV line-to-line). |
| TJ max | +150 °C - maximum junction temperature; enables operation in high-ambient environments such as automotive engine compartments or industrial motor drives. |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; informs PCB layout requirements for sustained power dissipation. |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including HTOL, TC, and ESD testing; required for under-hood and ADAS power rail protection. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); RoHS-compliant and halogen-free per Vishay HM3/HE3 specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal PN junction | Connected to protected circuit's higher-potential node (e.g., VCC rail); reverse-biased during normal operation. |
| Anode (non-banded end) | Cathode of internal PN junction | Connected to ground or lower-potential reference; provides low-impedance path to shunt surge current during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates immunity to severe transient threats including ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 combination wave surges. |
| AEC-Q101 qualified (HE3 suffix) | Confirms automotive-grade reliability for safety-critical applications without requiring additional qualification by end customers. |
| Low clamping voltage (VC = 12.0 V) | Minimizes stress on downstream 12 V-rated components such as microcontrollers, gate drivers, and analog front-ends. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without moisture sensitivity concerns or baking requirements. |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage performance across thermal cycling and humidity exposure. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients during alternator regulation failure. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VBAT and GND, absorbing >400 V spikes within nanoseconds. Use Value: Limits voltage seen by MCU and CAN transceivers to ≤12.0 V, preventing latch-up or permanent damage per ISO 16750-2. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors in PLC modules from EFT and surge coupling. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across signal and shield ground to suppress fast transients without distorting 4–20 mA signals. Use Value: Maintains signal integrity under IEC 61000-4-4 (4 kV EFT) and IEC 61000-4-5 (2 kV surge) while adding <1 pF parasitic capacitance. |
| DC-DC Converter Input Protection | Consumer USB Port ESD Clamping |
|
Use Scenario: Safeguarding buck converter input stages in telecom power supplies subjected to lightning-induced surges on 48 V backplane rails. IC Role / Device Role / Timing Role: Primary surge clamp upstream of input filter capacitor, triggered before bulk capacitor overvoltage occurs. Use Value: Absorbs 600 W transient energy without degradation, enabling use of smaller input capacitors and reducing board area by 15 %. |
Use Scenario: ESD suppression on VBUS line of USB 2.0 ports in smart home hubs exposed to human-body-model (HBM) discharges. IC Role / Device Role / Timing Role: Fast-response unidirectional TVS tied between VBUS and GND, clamping ±15 kV HBM events below 12 V. Use Value: Meets IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) while maintaining <1 nA leakage at 5 V to avoid battery drain. |
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-E3/5B | No AEC-Q101 qualification; commercial-grade only; same electrical specs and SMB package. | Not suitable for automotive OEM designs requiring PPAP documentation or AEC reliability evidence. | Select when cost-sensitive industrial or consumer applications do not require automotive qualification. |
| SAC7.0 | Lower PPPM (400 W), higher VC (13.5 V at 30 A), SOD-123FL package (smaller footprint, higher RθJA). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or ISO 7637-2 Pulse 5a. | Choose only for space-constrained designs where 600 W surge margin is not required and thermal budget allows higher RθJA. |
Compared with SMBJ7.0A-E3/5B and SAC7.0, the SMBJ7.0AHE3/5B uniquely combines AEC-Q101 qualification, 600 W surge rating, and 12.0 V clamping in an industry-standard SMB footprint - making it the only option among the three validated for automotive power rail protection with full traceability and lifecycle support.
Availability
SMBJ7.0AHE3/5B is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and DC-DC converter input staging requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 compliance.
Supply support for SMBJ7.0AHE3/5B 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 optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness against load dump, ESD, and surge events is mission-critical.
FAQ
What is the clamping voltage of SMBJ7.0AHE3/5B at its rated peak pulse current?
The SMBJ7.0AHE3/5B has a maximum clamping voltage (VC) of 12.0 V when subjected to its specified peak pulse current (IPPM) of 50.0 A under the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream components experience no more than 12.0 V during surge events - critical for protecting 12 V-tolerant ICs and MOSFETs. The SMBJ7.0AHE3/5B maintains this clamping performance across its full operating temperature range (–55 to +150 °C).
Is SMBJ7.0AHE3/5B suitable for automotive applications?
Yes, SMBJ7.0AHE3/5B is AEC-Q101 qualified, as confirmed by Vishay's HE3 suffix designation and documentation in datasheet 88392 (Revision 09-Jan-2024). It meets all stress tests required for automotive use, including high-temperature operating life (HTOL), temperature cycling (TC), and ESD (HBM/MM). The SMBJ7.0AHE3/5B is explicitly intended for under-hood and chassis-mounted modules where load dump and jump-start transients occur - making it appropriate for engine control units, body control modules, and ADAS power supplies.
What does the "HE3" suffix indicate in SMBJ7.0AHE3/5B?
The "HE3" suffix in SMBJ7.0AHE3/5B denotes RoHS-compliant construction with AEC-Q101 qualification and halogen-free molding compound. Per Vishay's ordering nomenclature, "HE3" distinguishes automotive-grade versions from commercial "E3" parts, ensuring traceability to qualified lots, extended reliability testing, and compliance with automotive material standards (e.g., JESD201 Class 2 whisker resistance). The SMBJ7.0AHE3/5B is not interchangeable with non-HE3 variants in PPAP-controlled automotive programs.
How does SMBJ7.0AHE3/5B differ from bidirectional SMBJ7.0CA variants?
The SMBJ7.0AHE3/5B is unidirectional, meaning it conducts only during reverse-voltage transients and blocks forward current - ideal for DC power rail protection. In contrast, SMBJ7.0CA is bidirectional, offering symmetrical clamping for AC or floating signal lines. The SMBJ7.0AHE3/5B has a cathode band marking and exhibits forward voltage drop (~3.5 V at 50 A), whereas SMBJ7.0CA lacks polarity marking and clamps equally in both directions. Their VBR and VC values also differ due to structural asymmetry.
What is the thermal resistance of SMBJ7.0AHE3/5B, and how does it affect PCB layout?
The SMBJ7.0AHE3/5B 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 - as defined in Vishay's test conditions. This value implies that dissipating even short-duration surge energy requires adequate copper area to avoid exceeding the +150 °C maximum junction temperature. For repeated surges or high ambient temperatures, designers should increase pad size or add thermal vias; the SMBJ7.0AHE3/5B's RθJL of 20 °C/W further supports heat conduction through leads into inner-layer planes.
SMBJ7.0AHE3/5B 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ7.0AHE3/5B FAQ
1.How can I place an order for SMBJ7.0AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ7.0AHE3/5B 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 SMBJ7.0AHE3/5B reliable?
The price and inventory of SMBJ7.0AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ7.0AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ7.0AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ7.0AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ7.0AHE3/5B?
SMBJ7.0AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ7.0AHE3/5B 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 SMBJ7.0AHE3/5B?
For technical support, including SMBJ7.0AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ7.0AHE3/5B requirements.
6.How does Aetrix verify that SMBJ7.0AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ7.0AHE3/5B 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 SMBJ7.0AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ7.0AHE3/5B?
All SMBJ7.0AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ7.0AHE3/5B, 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 SMBJ7.0AHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ7.0AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ7.0AHE3/5B Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
