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Vishay General Semiconductor - Diodes Division SMBJ60A-E3/5B
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- Part No.:
- SMBJ60A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ60A-E3/5B.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,031
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Product details
Overview
SMBJ60A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 60 V stand-off voltage (VWM), 66.7–73.7 V breakdown voltage (VBR) at 1 mA, 96.8 V maximum clamping voltage (VC) at 6.2 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives, automotive ECUs, and PoE-powered Ethernet interfaces.
For engineers reviewing the SMBJ60A-E3/5B datasheet, SMBJ60A-E3/5B pinout, SMBJ60A-E3/5B application, or SMBJ60A-E3/5B equivalent, key selection criteria include clamping performance under 6.2 A surge, thermal resistance (RθJA = 100 °C/W), unidirectional polarity marking, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 60 V, it avalanches to limit transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at VWM), while the 100 °C/W junction-to-ambient thermal resistance requires careful PCB copper pad design for sustained 5.0 W power dissipation.
The device responds in <1 ps to transients and maintains clamping within ±5% across -55 °C to +150 °C operating range. It meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), supports 100 A non-repetitive forward surge (IFSM), and is rated for repetitive 0.01% duty cycle pulses - making it suitable for infrequent but high-energy events like inductive switch-off spikes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 60 V - maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 66.7–73.7 V at 1.0 mA - guaranteed avalanche onset range; ensures predictable turn-on during overvoltage events |
| VC (Clamping Voltage) | 96.8 V at IPPM = 6.2 A - peak voltage seen by protected circuit during 10/1000 µs surge; determines stress on downstream ICs |
| PPPM (Peak Pulse Power) | 600 W - maximum transient energy absorption capability with 10/1000 µs waveform; defines protection level against lightning or ESD-like surges |
| IPPM (Peak Pulse Current) | 6.2 A - maximum surge current the device can safely clamp without degradation; derived from VC and PPPM |
| TJmax | +150 °C - maximum junction temperature; enables operation in under-hood automotive or enclosed industrial environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; requires ≥5.0 mm × 5.0 mm copper pads per terminal for rated power handling |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band; unidirectional configuration only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse voltage reference | Connected to protected line's lower-potential side (e.g., GND or return path); defines directionality of clamping |
| Cathode | Avalanche conduction node / surge sink | Connected to protected line's higher-potential side (e.g., VIN or signal rail); carries full surge current during clamping |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges without derating in standard layouts |
| 96.8 V clamping at 6.2 A | Limits voltage overshoot to ≤1.6× VWM, safeguarding 65 V-rated MOSFETs and 75 V-input DC-DC controllers |
| Glass passivated junction | Ensures stable VBR tolerance and <1.0 µA leakage at 60 V, critical for low-power always-on circuits |
| MSL Level 1 (260 °C peak) | Supports single-pass lead-free reflow without preconditioning, reducing manufacturing complexity |
| RoHS-compliant, commercial grade (E3 suffix) | Meets global environmental compliance requirements without halogen-free cost premium |
Applications
| Industrial Motor Drives | Automotive Engine Control Units |
|---|---|
Use Scenario: Protection of 48 V DC bus against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and chassis ground to clamp switching transients up to 100 V. Use Value: Limits bus voltage excursions to 96.8 V during 6.2 A surges, preventing gate oxide rupture in 75 V-rated half-bridge drivers. |
Use Scenario: Input protection for 5 V sensor supply rail exposed to load-dump transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Stand-off clamping element upstream of LDO regulators, activated only during >60 V events. Use Value: Withstands 100 A IFSM surge and operates reliably from -40 °C to +125 °C ambient, meeting AEC-Q101 qualification requirements. |
| Power over Ethernet (PoE) Switches | Industrial PLC Digital I/O Modules |
Use Scenario: Secondary-side transient suppression on 57 V PSE output lines feeding IEEE 802.3af/at PDs. IC Role / Device Role / Timing Role: Fast-response clamping diode parallel to Ethernet magnetics secondary winding. Use Value: Sub-nanosecond response time and 96.8 V clamping prevent latch-up in PoE interface ICs during cable ESD events. |
Use Scenario: 24 V DC input protection for isolated digital input cards subject to field wiring faults and lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage barrier on front-end rectifier output, before optocoupler isolation stage. Use Value: 600 W pulse rating handles 10/1000 µs surges up to 6.2 A, extending system MTBF in factory-floor electromagnetic environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60CA-E3/5B | Bidirectional variant; symmetric VBR (66.7–73.7 V) in both polarities; no polarity marking | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where reverse polarity transients occur | Select only if bidirectional clamping is needed; not a drop-in replacement due to polarity and layout implications |
| SMCJ60A-E3/57T | Higher power rating (1500 W), larger SMC (DO-214AB) package, 100 A IPPM, same VWM/VC specs | Suitable for higher-energy threats (e.g., IEC 61000-4-5 Level 4) or systems requiring extended surge endurance | Choose when PCB space allows SMC footprint and 1500 W rating is required; not pin-compatible with SMBJ60A-E3/5B |
Compared with SMBJ60CA-E3/5B and SMCJ60A-E3/57T, SMBJ60A-E3/5B offers optimal balance of 600 W surge capacity, compact SMB footprint, and unidirectional precision for DC rail protection - avoiding unnecessary bidirectional complexity or oversized packaging where not required.
Availability
SMBJ60A-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive engine control units, and Power over Ethernet switches requiring stable component supply with consistent RoHS-compliant manufacturing and tape-and-reel delivery.
Supply support for SMBJ60A-E3/5B 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, TVS devices, and MOSFETs with emphasis on reliability, power efficiency, and AEC-Q qualified solutions.
The SMBJ series was engineered specifically for surface-mount transient suppression in space-constrained, high-reliability DC power and signal line applications - balancing clamping performance, thermal robustness, and manufacturability.
FAQ
What is the maximum clamping voltage of SMBJ60A-E3/5B at its rated peak pulse current?
The SMBJ60A-E3/5B has a maximum clamping voltage (VC) of 96.8 V at its rated peak pulse current (IPPM) of 6.2 A, measured using the standardized 10/1000 µs double-exponential waveform. This value is specified in the Vishay datasheet Document Number 88392, page 2, and defines the upper voltage limit imposed on protected circuitry during surge events. Maintaining VC below 100 V ensures compatibility with 65–75 V-rated power semiconductors commonly used in 48 V industrial systems.
Is SMBJ60A-E3/5B suitable for automotive applications?
SMBJ60A-E3/5B is RoHS-compliant and rated for operation from -55 °C to +150 °C, but it is not AEC-Q101 qualified in the E3 suffix configuration. For automotive use, Vishay specifies the HE3 suffix (e.g., SMBJ60AHE3_B) which carries AEC-Q101 qualification. The SMBJ60A-E3/5B remains appropriate for non-safety-critical automotive subsystems where qualification is not mandated, such as aftermarket infotainment power supplies - provided system-level validation confirms reliability under vibration, thermal cycling, and load-dump conditions.
How does the SMBJ60A-E3/5B differ from the SMBJ60CA-E3/5B?
The SMBJ60A-E3/5B is unidirectional with cathode-band polarity marking, while the SMBJ60CA-E3/5B is bidirectional with identical breakdown characteristics in both directions and no polarity marking. Their VWM, VBR, and VC values are identical, but the unidirectional version blocks forward current beyond ~3.5 V, whereas the bidirectional conducts in either direction above VBR. This makes SMBJ60A-E3/5B appropriate for DC rails, and SMBJ60CA-E3/5B necessary for AC or differential signal lines like CAN or RS-485.
What PCB layout guidance applies to SMBJ60A-E3/5B for optimal thermal performance?
To achieve the rated 5.0 W power dissipation and maintain RθJA = 100 °C/W, the SMBJ60A-E3/5B must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in the Vishay datasheet. Thermal vias under pads and internal copper planes improve heat spreading. Avoid narrow traces between the device and ground/power planes, and ensure the cathode pad connects directly to the main system ground plane to minimize inductance during surge conduction.
Does SMBJ60A-E3/5B meet any industry surge immunity standards out-of-the-box?
The SMBJ60A-E3/5B itself is not certified to IEC 61000-4-5 or ISO 7637-2, but its 600 W peak pulse rating with 10/1000 µs waveform aligns with the energy levels required for IEC 61000-4-5 Level 3 (1 kV open-circuit, 2 Ω source impedance). When integrated into a properly designed PCB with appropriate trace routing, grounding, and upstream filtering, the SMBJ60A-E3/5B enables end equipment to pass these standards - confirmed via system-level testing, not component-level certification.
SMBJ60A-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ60A-E3/5B FAQ
1.How can I place an order for SMBJ60A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ60A-E3/5B 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 SMBJ60A-E3/5B reliable?
The price and inventory of SMBJ60A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ60A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ60A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ60A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ60A-E3/5B?
SMBJ60A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ60A-E3/5B 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 SMBJ60A-E3/5B?
For technical support, including SMBJ60A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ60A-E3/5B requirements.
6.How does Aetrix verify that SMBJ60A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ60A-E3/5B 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 SMBJ60A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ60A-E3/5B?
All SMBJ60A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ60A-E3/5B, 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 SMBJ60A-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ60A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ60A-E3/5B Tags
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