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Vishay General Semiconductor - Diodes Division SMAJ60A-M3/61
- Part No.:
- SMAJ60A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60A-M3/61.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,795
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Product details
Overview
SMAJ60A-M3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power 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 4.1 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the SMAJ60A-M3/61 datasheet, SMAJ60A-M3/61 pinout, SMAJ60A-M3/61 application, or SMAJ60A-M3/61 equivalent, key selection criteria include unidirectional polarity, 96.8 V clamping performance under 4.1 A surge, 1.0 μA max reverse leakage at 60 V, -55 °C to +150 °C operating junction temperature, and halogen-free RoHS-compliant M3 termination.
Technical Context
This TVS diode operates as a fast-acting shunt clamp during overvoltage events, leveraging an avalanche breakdown mechanism to divert transient energy away from protected circuitry. Its low incremental surge resistance and sub-nanosecond response time ensure effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
The device is rated for 400 W peak pulse power (10/1000 μs) up to 78 V; above that threshold, derating applies to 300 W. Thermal resistance is 120 °C/W junction-to-ambient (RθJA) and 30 °C/W junction-to-lead (RθJL), supporting reliable operation on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 66.7 V / 73.7 V at 1 mA - guaranteed avalanche onset range defining turn-on consistency |
| VC @ IPPM | 96.8 V at 4.1 A - clamped voltage seen by protected circuit during full-rated transient |
| PPPM | 400 W (10/1000 μs) - surge energy handling capacity on standard PCB pad layout |
| ID @ VWM | 1.0 μA - ultra-low leakage ensuring minimal standby power loss and signal integrity |
| TJ Range | -55 °C to +150 °C - enables deployment in under-hood automotive and industrial environments |
| Package | SMA (DO-214AC) - surface-mount footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads; cathode indicated by band marking on unidirectional devices; meets UL 94 V-0 flammability rating and J-STD-020 MSL Level 1 (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes conduction path during reverse-biased transient |
| Cathode | High-side transient input terminal | Connected to line being protected; avalanche conduction occurs from cathode to anode when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V–48 V rails |
| 96.8 V clamping voltage at 4.1 A | Limits stress on downstream 100 V-rated MOSFETs or logic inputs during worst-case transients |
| 1.0 μA max reverse leakage at 60 V | Prevents false triggering and preserves battery life in always-on sensor nodes |
| Halogen-free, RoHS-compliant M3 suffix | Fulfills environmental compliance requirements for automotive and industrial OEMs without sacrificing reliability |
| AEC-Q101 qualification option available | Enables drop-in use in automotive ECUs when ordered as HM3 variant (e.g., SMAJ60AHM3_X) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (up to 35 V, 100 ms) and jump-start spikes on 12 V battery-fed control modules. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between VBAT and GND, activated within <1 ns upon exceeding 66.7 V. Use Value: Limits voltage seen by MCU power supply and CAN transceivers to ≤96.8 V, preventing latch-up or permanent damage. |
Use Scenario: Guarding analog front-end inputs of temperature/pressure sensors connected to long harnesses in factory automation. IC Role / Device Role / Timing Role: Standby-mode TVS on signal line (e.g., 4–20 mA loop or 0–5 V output), conducting only during ESD or inductive kick events. Use Value: Maintains signal fidelity with <1.0 μA leakage while clamping 8 kV HBM ESD pulses to safe levels for precision ADC drivers. |
| DC-DC Converter Input Protection | Telecom Line Card Surge Protection |
|
Use Scenario: Safeguarding buck converter inputs fed from unregulated 24 V or 48 V industrial supplies subject to switching noise and field wiring faults. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of input capacitor and controller IC, sized for repetitive 400 W surges. Use Value: Absorbs 10/1000 μs transients without degradation, enabling stable 24 V → 5 V conversion even after repeated surge exposure. |
Use Scenario: Protecting Ethernet PHY or RS-485 transceivers on telecom base station line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC rail or data line pair, coordinated with gas discharge tube (GDT) for staged protection. Use Value: Provides low-clamp first-stage protection (96.8 V) to prevent premature failure of secondary protection components and maintain link uptime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60A-E3/61 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3 termination) | Suitable for commercial-grade designs where halogen-free requirement is not mandated | Select E3 for cost-sensitive non-automotive applications; verify board-level flame rating compatibility |
| SMAJ60AHM3_A/H | Identical clamping and power ratings; adds AEC-Q101 qualification and enhanced reliability screening | Required for automotive body control modules, ADAS power domains, and safety-critical subsystems | Choose HM3 when automotive qualification, extended temperature validation, or zero-defect manufacturing is mandatory |
Compared with SMAJ60A-M3/61, the E3 variant offers identical protection performance at lower cost for non-halogen-restricted environments, while the HM3 variant adds automotive-grade reliability and screening - making it essential for vehicle platforms but unnecessary for consumer or general industrial use.
Availability
SMAJ60A-M3/61 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, DC-DC converter input protection, and telecom line card surge protection requiring stable component supply across production lifecycles.
Supply support for SMAJ60A-M3/61 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 high-reliability, high-efficiency, and application-specific optimization.
The SMAJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where consistent clamping, low leakage, and long-term stability under thermal cycling are critical.
FAQ
What is the maximum clamping voltage of the SMAJ60A-M3/61 under rated surge conditions?
The SMAJ60A-M3/61 has a maximum clamping voltage (VC) of 96.8 V at its rated peak pulse current (IPPM) of 4.1 A, measured using the standardized 10/1000 μs double-exponential waveform. This value ensures protected circuits remain below critical voltage thresholds during transient events. The SMAJ60A-M3/61 maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is the SMAJ60A-M3/61 halogen-free and RoHS-compliant?
Yes, the SMAJ60A-M3/61 carries the M3 suffix, indicating it is both halogen-free and RoHS-compliant per EU Directive 2011/65/EU and Vishay's material declarations. The molding compound meets UL 94 V-0 flammability rating, and terminals are matte tin plated per J-STD-002. The SMAJ60A-M3/61 is certified to JESD201 Class 2 whisker resistance standards.
Does the SMAJ60A-M3/61 have AEC-Q101 qualification?
No, the SMAJ60A-M3/61 is not AEC-Q101 qualified. That qualification applies only to variants with HE3 or HM3 suffixes (e.g., SMAJ60AHM3_A/H). The SMAJ60A-M3/61 is commercial-grade and intended for industrial, telecom, and consumer applications where automotive-grade reliability testing is not required.
What is the thermal resistance of the SMAJ60A-M3/61, and how does it affect PCB layout?
The SMAJ60A-M3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead resistance (RθJL) of 30 °C/W, measured on 0.2" × 0.2" copper pads per terminal. To maintain safe junction temperatures under repetitive surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks near the SMA (DO-214AC) package. The SMAJ60A-M3/61 is rated for MSL Level 1 and withstands peak reflow of 260 °C.
How does the SMAJ60A-M3/61 compare to bidirectional TVS diodes like SMAJ60CA?
The SMAJ60A-M3/61 is unidirectional and features a cathode band for polarity identification, while SMAJ60CA is bidirectional with no polarity marking and symmetrical clamping in both directions. The SMAJ60A-M3/61 offers lower leakage (<1.0 μA at 60 V) than SMAJ60CA (≤5.0 μA), making it preferable for DC-biased lines. The SMAJ60A-M3/61 cannot replace SMAJ60CA in AC-coupled or floating signal paths without circuit redesign.
SMAJ60A-M3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- 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):
- 4.1A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
SMAJ60A-M3/61 FAQ
1.How can I place an order for SMAJ60A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60A-M3/61 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 SMAJ60A-M3/61 reliable?
The price and inventory of SMAJ60A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60A-M3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ60A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60A-M3/61?
SMAJ60A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60A-M3/61 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 SMAJ60A-M3/61?
For technical support, including SMAJ60A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60A-M3/61 requirements.
6.How does Aetrix verify that SMAJ60A-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ60A-M3/61 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 SMAJ60A-M3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ60A-M3/61?
All SMAJ60A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60A-M3/61, 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 SMAJ60A-M3/61 part is unused and in its original packaging.
Return procedure for SMAJ60A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ60A-M3/61 Tags
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