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Vishay General Semiconductor - Diodes Division SMBJ5.0AHE3/5B
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- Part No.:
- SMBJ5.0AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0AHE3/5B.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,541
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Product details
Overview
SMBJ5.0AHE3/5B 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 power and signal lines. It features 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), 65.2 V maximum clamping voltage (VC) at 800 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBJ5.0AHE3/5B datasheet, SMBJ5.0AHE3/5B pinout, SMBJ5.0AHE3/5B application, or SMBJ5.0AHE3/5B equivalent, key selection criteria include unidirectional polarity, 5.0 V stand-off rating, 600 W surge capability, thermal resistance (RθJA = 100 °C/W), and RoHS-compliant AEC-Q101 qualification for automotive electronics protection.
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, entering avalanche conduction when reverse voltage exceeds VBR to limit transient overvoltage. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (ID ≤ 800 µA at VWM).
Designed for 10/1000 µs waveform compliance, it delivers 800 A peak pulse current (IPPM) with 65.2 V clamping voltage, low incremental surge resistance, and fast response time (<1 ns). It meets MSL level 1 (260 °C reflow) and supports automated SMT placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 6.40 V / 7.07 V at 10 mA - Ensures reliable turn-on within tight tolerance band for consistent protection threshold |
| VC @ IPPM | 65.2 V at 800 A - Clamped voltage during worst-case 600 W transient, defining maximum stress on downstream ICs |
| PPPM | 600 W (10/1000 µs) - Peak surge energy handling capacity per industry-standard lightning/inductive-switching waveform |
| ID @ VWM | ≤800 µA - Low leakage preserves system efficiency and avoids false triggering in low-power circuits |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures |
| RθJA | 100 °C/W - Thermal performance baseline for PCB pad layout design (0.2" × 0.2" copper pads) |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path (unidirectional) | Connected to ground or lower-potential rail; defines current direction during clamping |
| Cathode | Avalanche conduction terminal | Banded end; connected to protected line; conducts reverse surge current into ground path |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients from inductive load switching and ESD without degradation |
| AEC-Q101 qualified | Validated for automotive powertrain, body control, and ADAS modules requiring reliability under temperature cycling and vibration |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without popcorn or delamination risk |
| Low profile SMB package | Enables compact PCB layouts in space-constrained applications like sensor modules and infotainment interfaces |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V supply rails in automotive body control modules (BCM) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 5 V rail and chassis ground to clamp transients above 7 V while remaining inert below 5 V. Use Value: Prevents latch-up or damage to microcontrollers and CAN transceivers by limiting clamped voltage to 65.2 V during 800 A surges. | Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Parallel-connected TVS on 4–20 mA or 0–10 V signal paths to absorb ESD and field-wiring induced spikes. Use Value: Maintains signal integrity with ≤800 µA leakage at 5 V, avoiding offset errors in precision measurement circuits. |
| Consumer USB Port Surge Suppression | Telecom DC Power Input Protection |
Use Scenario: Safeguarding USB VBUS lines in portable docking stations exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5 V bus to suppress ±8 kV contact ESD per IEC 61000-4-2 without affecting normal operation. Use Value: Sub-1 ns response ensures clamping occurs before USB PHY ICs experience overstress, preserving data link reliability. | Use Scenario: Front-end protection of 5 V DC input on telecom remote radio units powered via PoE injectors or local adapters. IC Role / Device Role / Timing Role: Primary transient shunt on input rail upstream of DC/DC converters to prevent secondary failure cascades. Use Value: 600 W rating handles repetitive surges from lightning-induced coupling on long outdoor cabling without derating. |
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; differs only in tape-and-reel packaging (750 pcs vs. 3200 pcs) and reel diameter (7″ vs. 13″) | Identical functional use; selected for smaller batch prototyping or low-volume production runs | Choose when matching existing SMT line feeder configuration or minimizing initial inventory commitment |
| SMCJ5.0AHE3/5B | Higher 1500 W PPPM rating, larger SMC (DO-214AB) package, same VWM/VBR/VC specs | Used where higher surge margin is required (e.g., industrial motor drives), but requires PCB footprint redesign | Choose only if 600 W is insufficient and board layout allows SMC footprint; not drop-in compatible |
Compared with SMBJ5.0A-E3/52, SMBJ5.0AHE3/5B offers identical protection performance with optimized high-volume tape-and-reel logistics; versus SMCJ5.0AHE3/5B, it trades surge headroom for space savings-critical in dense automotive ECUs where PCB area directly impacts cost and thermal management.
Availability
SMBJ5.0AHE3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and consumer power interface designs requiring stable component supply, AEC-Q101 compliance, and high-volume SMT manufacturability.
Supply support for SMBJ5.0AHE3/5B 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, automotive qualification, and high-volume manufacturing.
The SMBJ series targets robust transient suppression in space-constrained, high-reliability applications-specifically engineered for automotive, industrial, and telecom systems where consistent clamping voltage and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of SMBJ5.0AHE3/5B at its rated peak pulse current?
The SMBJ5.0AHE3/5B has a maximum clamping voltage (VC) of 65.2 V at its rated peak pulse current (IPPM) of 800 A under the 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a worst-case transient event and is measured with specified test conditions including 0.2" × 0.2" copper pads per terminal. The SMBJ5.0AHE3/5B maintains this clamping performance across its qualified operating temperature range.
Is SMBJ5.0AHE3/5B suitable for automotive applications?
Yes, SMBJ5.0AHE3/5B is AEC-Q101 qualified and explicitly designated for automotive use with suffix "HE3" indicating RoHS-compliance and automotive qualification. It supports operation from –55 °C to +150 °C junction temperature and meets MSL Level 1 reflow requirements. The SMBJ5.0AHE3/5B is commonly deployed in body control modules, infotainment power supplies, and sensor interfaces where transient immunity and long-term reliability are critical.
How does the SMBJ5.0AHE3/5B differ from bidirectional variants like SMBJ5.0CA?
The SMBJ5.0AHE3/5B is unidirectional, with cathode marked by a band and intended for DC line protection where polarity is fixed. In contrast, SMBJ5.0CA is bidirectional, lacks polarity marking, and protects AC or dual-polarity signals. Their VBR and VC values differ: SMBJ5.0AHE3/5B has VBR = 6.4–7.07 V, while SMBJ5.0CA has VBR ≤ 7.25 V. The SMBJ5.0AHE3/5B cannot replace SMBJ5.0CA in AC-coupled applications without circuit redesign.
What is the thermal resistance of SMBJ5.0AHE3/5B, and how does it affect PCB layout?
The SMBJ5.0AHE3/5B 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. This value assumes minimum recommended pad layout per Vishay's datasheet; reducing pad size increases thermal impedance and risks exceeding TJ max = +150 °C during repeated surges. For sustained high-duty-cycle operation, designers should verify thermal performance using the SMBJ5.0AHE3/5B's RθJL = 20 °C/W to optimize heatsinking via internal copper planes.
Does SMBJ5.0AHE3/5B meet UL recognition standards?
Yes, SMBJ5.0AHE3/5B carries Underwriters Laboratories (UL) recognition under file E136766 for both unidirectional and bidirectional Transient Voltage Suppressors, compliant with UL 497B for signal and power line protectors. This certification confirms its suitability for safety-critical applications in North America, including industrial controls and telecom infrastructure where third-party safety validation is mandated. The SMBJ5.0AHE3/5B's UL listing applies to its full rated electrical performance envelope.
SMBJ5.0AHE3/5B 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ5.0AHE3/5B FAQ
1.How can I place an order for SMBJ5.0AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0AHE3/5B 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 SMBJ5.0AHE3/5B reliable?
The price and inventory of SMBJ5.0AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ5.0AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ5.0AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0AHE3/5B?
SMBJ5.0AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0AHE3/5B 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 SMBJ5.0AHE3/5B?
For technical support, including SMBJ5.0AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0AHE3/5B requirements.
6.How does Aetrix verify that SMBJ5.0AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0AHE3/5B 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 SMBJ5.0AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ5.0AHE3/5B?
All SMBJ5.0AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0AHE3/5B, 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 SMBJ5.0AHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ5.0AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0AHE3/5B Tags
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