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Vishay General Semiconductor - Diodes Division SMBJ60A-M3/5B
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- Part No.:
- SMBJ60A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ60A-M3/5B.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,266
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Product details
Overview
SMBJ60A-M3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the 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 a 10/1000 µs waveform - deployed in industrial motor drives, automotive body control modules, and telecom power supplies.
For engineers reviewing the SMBJ60A-M3/5B datasheet, SMBJ60A-M3/5B pinout, SMBJ60A-M3/5B application, or SMBJ60A-M3/5B equivalent, key selection criteria include clamping performance under 6.2 A surge, thermal resistance (RθJA = 100 °C/W), halogen-free RoHS compliance (M3 suffix), unidirectional polarity marking, and compatibility with automated SMT placement on standard 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 across protected nodes. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at VWM), while the 10/1000 µs waveform rating reflects standardized lightning/surge immunity testing per IEC 61000-4-5.
The device is rated for -55 °C to +150 °C operating junction temperature, supports 100 A non-repetitive forward surge (IFSM), and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Polarity is marked by a cathode band; no marking is used for bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - maximum continuous reverse working voltage before clamping begins; defines safe DC rail margin. |
| VBR (min/max) | 66.7 V / 73.7 V at 1 mA - guaranteed avalanche onset range; ensures consistent turn-on across production lots. |
| VC @ IPPM | 96.8 V at 6.2 A - clamped voltage during 10/1000 µs surge; determines maximum stress on downstream ICs. |
| PPPM | 600 W - peak pulse power handling capability; validates protection against IEC 61000-4-5 Level 4 surges. |
| IPPM | 6.2 A - peak pulse current corresponding to VC; used to size series impedance for coordinated protection. |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm pads; informs derating above 25 °C. |
| TJ max. | +150 °C - maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant (M3 suffix), matte tin-plated leads, MSL Level 1, 260 °C peak reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration. |
| Cathode | Avalanche clamping terminal | Marked with band; connected to protected line (e.g., 60 V rail); conducts surge current to ground when VREV > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates robustness against lightning-induced transients and inductive switching spikes in industrial power systems. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage overshoot during clamping, reducing stress on 75 V-rated MOSFETs or 65 V input regulators. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage (<1.0 µA), critical for battery-backed or low-power sensor interfaces. |
| Automated placement compatible | Standard SMB footprint and lead geometry support high-yield pick-and-place assembly without tombstoning. |
| Halogen-free & RoHS-compliant (M3) | Fulfills environmental compliance requirements for automotive ECUs and EU industrial equipment without sacrificing surge rating. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of 60 V DC bus against back-EMF spikes from brushed DC motors and solenoid drivers. IC Role / Device Role / Timing Role: Shunt clamping element placed directly across bus rail, triggered within <1 ns to divert >6 A surge current. Use Value: Prevents latch-up or gate oxide damage in 60 V-rated half-bridge drivers (e.g., DRV8305) during load dump events. |
Use Scenario: Guarding LIN bus transceivers and microcontroller I/O pins against ESD and load dump in door module PCBs. IC Role / Device Role / Timing Role: Unidirectional TVS tied between LIN line and chassis ground, absorbing ±30 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity below 12 V threshold while clamping transients to <97 V, preserving transceiver fault tolerance. |
| Telecom Power Supplies | Smart Meter DC Inputs |
|
Use Scenario: Secondary-side overvoltage suppression on 48 V telecom rectifier outputs feeding PoE PSE controllers. IC Role / Device Role / Timing Role: Standoff-rated TVS parallel to output capacitor, activated only during AC line surges or hot-swap transients. Use Value: Limits output excursion to ≤97 V during 600 W surges, preventing overvoltage shutdown in TPS544B25-based converters. |
Use Scenario: Input rail protection for 60 V auxiliary supply in polyphase smart meters exposed to utility grid transients. IC Role / Device Role / Timing Role: Primary defense layer upstream of DC-DC converter, sized to handle repetitive 10/1000 µs surges per ANSI C12.1. Use Value: Enables >100,000 surge cycles without degradation, meeting ANSI C12.31 lifetime reliability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60A-E3/5B | Same electrical specs, but RoHS-compliant with lead-free solderability (E3 suffix); not halogen-free. | Preferred for commercial-grade consumer electronics where halogen content is unrestricted. | Select when halogen-free requirement is absent and cost-sensitive sourcing is prioritized. |
| SMAJ60A-M3 | Lower peak pulse power (400 W vs. 600 W); SMA package (smaller footprint, higher RθJA = 140 °C/W). | Suitable only for lower-energy transients or space-constrained designs with active cooling. | Choose only if board area is critical and surge threat level is limited to IEC 61000-4-5 Level 2. |
Compared with SMBJ60A-E3/5B, the SMBJ60A-M3/5B adds halogen-free compliance without sacrificing clamping performance or surge rating; versus SMAJ60A-M3, it delivers 50 % higher pulse power and superior thermal dissipation in the same design flow - making it the preferred choice for industrial and automotive applications demanding full 600 W immunity.
Availability
SMBJ60A-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supplies requiring stable component supply, long-lifecycle assurance, and halogen-free compliance.
Supply support for SMBJ60A-M3/5B 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 optoelectronics with emphasis on reliability, ruggedness, and application-specific validation.
The SMBJ series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated at the component level.
FAQ
What is the maximum clamping voltage of SMBJ60A-M3/5B at its rated peak pulse current?
The SMBJ60A-M3/5B has a maximum clamping voltage (VC) of 96.8 V at its specified peak pulse current (IPPM) of 6.2 A, measured using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ60A-M3/5B maintains this clamping performance without degradation under repetitive surge conditions up to 0.01 % duty cycle.
Does SMBJ60A-M3/5B meet automotive qualification standards?
The SMBJ60A-M3/5B itself is not AEC-Q101 qualified; that qualification applies only to variants with HE3 or HM3 suffixes (e.g., SMBJ60AHM3_B/I). However, the SMBJ60A-M3/5B shares identical electrical characteristics, package construction, and thermal performance with its AEC-Q101 counterparts - making it suitable for non-safety-critical automotive applications such as body electronics where formal qualification is not mandated. The SMBJ60A-M3/5B remains fully compliant with RoHS and halogen-free requirements.
How does the SMBJ60A-M3/5B differ from bidirectional TVS diodes like SMBJ60CA-M3/5B?
The SMBJ60A-M3/5B is unidirectional and features a cathode band marking; it conducts only in reverse bias above VBR, blocking forward current beyond ~3.5 V. In contrast, SMBJ60CA-M3/5B is bidirectional with symmetrical clamping in both polarities and no polarity marking. The SMBJ60A-M3/5B is selected for DC rail protection where polarity is fixed, offering tighter VBR tolerance and lower leakage than its bidirectional counterpart. Its use avoids unintended conduction during normal forward-biased operation.
What is the thermal resistance and how does it affect SMBJ60A-M3/5B layout?
The SMBJ60A-M3/5B 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 no additional heatsinking; exceeding 5.0 W steady-state power dissipation requires derating above 25 °C ambient. Layout must allocate minimum pad area per datasheet recommendations to maintain thermal performance - undersized pads increase RθJA, risking thermal runaway during repetitive surges. The SMBJ60A-M3/5B's RθJA is validated for standard FR-4 PCBs without internal copper planes.
Can SMBJ60A-M3/5B be used in place of SMAJ60A-M3 for higher surge protection?
Yes - the SMBJ60A-M3/5B provides 50 % higher peak pulse power (600 W vs. 400 W) and lower clamping voltage (96.8 V vs. 103 V) than SMAJ60A-M3 at the same VWM. Its larger SMB package also offers better thermal dissipation (RθJA = 100 °C/W vs. 140 °C/W). However, the SMBJ60A-M3/5B requires more PCB area and may not fit in ultra-compact layouts. Substitution is valid when surge threat level exceeds IEC 61000-4-5 Level 3 and board space permits the DO-214AA footprint.
SMBJ60A-M3/5B 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-M3/5B FAQ
1.How can I place an order for SMBJ60A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ60A-M3/5B 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-M3/5B reliable?
The price and inventory of SMBJ60A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ60A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ60A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ60A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ60A-M3/5B?
SMBJ60A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ60A-M3/5B 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-M3/5B?
For technical support, including SMBJ60A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ60A-M3/5B requirements.
6.How does Aetrix verify that SMBJ60A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ60A-M3/5B 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-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ60A-M3/5B?
All SMBJ60A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ60A-M3/5B, 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-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ60A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ60A-M3/5B Tags
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