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Vishay General Semiconductor - Diodes Division SMAJ60CA-E3/61
- Part No.:
- SMAJ60CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60CA-E3/61.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,538
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Product details
Overview
SMAJ60CA-E3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection of sensitive electronics. It features a 60 V standoff 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, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial I/O modules.
For engineers reviewing the SMAJ60CA-E3/61 datasheet, SMAJ60CA-E3/61 pinout, SMAJ60CA-E3/61 application, or SMAJ60CA-E3/61 equivalent, this device serves as a RoHS-compliant, AEC-Q101-qualified (via HE3 variant) bidirectional TVS for ESD and surge protection where low clamping voltage, fast response (<1 ps), and stable thermal performance up to +150 °C junction temperature are critical selection criteria.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior during positive and negative transients. Its glass-passivated junction ensures stable leakage (<1.0 μA at 60 V) and repeatable breakdown characteristics over temperature (±0.105 %/°C tempco).
The device is rated for 400 W peak pulse power (derated to 300 W above 78 V), with thermal resistance of 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), enabling reliable operation on standard 0.2" × 0.2" copper pads without active cooling in space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 60 V - Maximum continuous reverse voltage before significant conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 66.7–73.7 V at 1 mA - Confirmed breakdown range ensuring predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 96.8 V at 4.1 A (10/1000 μs) - Limits downstream voltage stress to protect ICs like microcontrollers and CAN transceivers. |
| PPPM (Peak Pulse Power) | 400 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure when mounted per recommended pad layout. |
| IPPM (Peak Pulse Current) | 4.1 A - Peak surge current capability under standardized 10/1000 μs waveform; directly determines protected line's surge withstand level. |
| TJmax | +150 °C - Enables use in under-hood automotive environments and industrial enclosures with elevated ambient temperatures. |
| Package | SMA (DO-214AC) - Surface-mount package with 2.54 mm lead pitch, compatible with automated placement and reflow soldering (MSL Level 1, 260 °C peak). |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads; polarity-unmarked for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No polarity marking; terminals interchangeable - enables protection of AC-coupled or floating signal lines without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Withstands automotive load-dump and inductive switching surges without degradation when mounted on 5.0 mm × 5.0 mm copper pads. |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes voltage overshoot during clamping - critical for protecting 3.3 V/5 V logic interfaces and analog sensor front-ends. |
| Glass-passivated junction | Ensures long-term reliability and stable leakage (<1.0 μA) across temperature and humidity stress conditions. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
| AEC-Q101 qualification path | Available via HE3 suffix - validates suitability for automotive powertrain, body control, and ADAS subsystems. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
|
Use Scenario: Protects 12 V supply rail and LIN bus lines from load dump and battery reverse connection transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector entry point to clamp ±100 V spikes within 1 ns. Use Value: Prevents latch-up or permanent damage to MCU I/O pins and LIN transceivers while maintaining <1 μA leakage at nominal 12 V. |
Use Scenario: Shields 24 V digital input channels from field-wiring induced surges (IEC 61000-4-5 Level 3). IC Role / Device Role / Timing Role: Primary overvoltage clamp on optocoupler input side, limiting voltage to <100 V during 400 A surge events. Use Value: Enables compliance with industrial immunity standards without adding series impedance or compromising response time. |
| Consumer Smart Appliance Motor Driver | Telecom Remote PHY Node Power Rail |
|
Use Scenario: Guards gate driver supply (VDD) against inductive kickback from BLDC motor commutation. IC Role / Device Role / Timing Role: Fast-clamping TVS placed adjacent to driver IC to suppress >100 V spikes before they reach internal LDOs. Use Value: Eliminates need for bulkier MOVs or multi-stage filtering - reduces BOM count and board area by 30% vs. discrete RC snubber solutions. |
Use Scenario: Protects 48 V DC-DC converter input from lightning-induced surges on outdoor coaxial power feeds. IC Role / Device Role / Timing Role: First-line transient suppressor upstream of primary regulator, clamping to 96.8 V to prevent overvoltage shutdown. Use Value: Maintains uninterrupted operation during transient events exceeding 1 kV/μs slew rate due to sub-nanosecond response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60A-E3/61 | Unidirectional version; cathode band marked; VF = 3.5 V at 25 A (forward conduction only). | Required where DC bias polarity is fixed and forward conduction must be blocked (e.g., single-supply sensor outputs). | Select SMAJ60A-E3/61 only if circuit topology mandates unidirectional blocking - otherwise SMAJ60CA-E3/61 provides symmetrical protection with no orientation dependency. |
| SMBJ60CA-E3/52 | Same VWM/VC specs but in SMB (DO-214AA) package; 600 W PPPM; larger footprint (4.6 mm × 3.96 mm vs. 4.5 mm × 2.79 mm). | Better suited for higher-energy transients (e.g., IEC 61000-4-5 Level 4) where 600 W rating and lower RθJA (90 °C/W) are needed. | Choose SMBJ60CA-E3/52 when surge energy exceeds 400 W limits or thermal budget requires lower junction rise - not a drop-in replacement due to different pad layout and height. |
Compared with SMAJ60A-E3/61, SMAJ60CA-E3/61 eliminates polarity-aware layout constraints and supports AC-coupled interfaces; versus SMBJ60CA-E3/52, it trades peak power headroom for space savings and compatibility with dense automotive PCBs where SMA footprint is mandated.
Availability
SMAJ60CA-E3/61 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, consumer appliance motor controls, and telecom remote node power systems requiring stable component supply and full traceability.
Supply support for SMAJ60CA-E3/61 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 reliability, precision, and automotive-grade qualification.
The SMAJ series targets cost-sensitive, high-volume transient protection applications in automotive, industrial, and communications equipment - engineered for rapid response, low clamping, and seamless integration into automated SMT assembly lines.
FAQ
What is the maximum clamping voltage of SMAJ60CA-E3/61 under standard test conditions?
The SMAJ60CA-E3/61 has a maximum clamping voltage (VC) of 96.8 V when subjected to a 10/1000 μs waveform at 4.1 A peak pulse current. This value is measured per JEDEC standards and reflects worst-case voltage seen by downstream circuitry during surge events - critical for validating protection margins of 3.3 V or 5 V logic components in the same system as SMAJ60CA-E3/61.
Is SMAJ60CA-E3/61 RoHS-compliant and halogen-free?
Yes, SMAJ60CA-E3/61 carries the "E3" suffix, indicating full RoHS compliance per EU Directive 2011/65/EU and exemption 7a. It is not halogen-free; for halogen-free compliance, the M3-suffixed variant (SMAJ60CA-M3/61) must be selected. Both meet JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements.
Can SMAJ60CA-E3/61 replace SMAJ60A-E3/61 in an existing design?
SMAJ60CA-E3/61 can replace SMAJ60A-E3/61 only if the circuit requires bidirectional protection - for example, on AC-coupled data lines or floating power domains. Since SMAJ60CA-E3/61 lacks polarity marking and conducts identically in both directions, it cannot substitute in unidirectional applications where forward voltage drop or cathode-referenced grounding is essential. Always verify layout symmetry before substitution.
What is the thermal resistance of SMAJ60CA-E3/61, and how does it affect PCB layout?
SMAJ60CA-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W. To maintain TJ ≤ 150 °C under 400 W pulses, the device must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - undersized pads will cause premature thermal runaway. No heatsink is required for single-pulse events.
Does SMAJ60CA-E3/61 meet AEC-Q101 for automotive use?
The base SMAJ60CA-E3/61 is commercial-grade and not AEC-Q101 qualified. However, Vishay offers the AEC-Q101-qualified variant SMAJ60CAHE3_A/H (with HE3 suffix), which shares identical electrical specs and SMA package but undergoes extended stress testing per AEC-Q101 Rev D. For automotive applications, specify the HE3 version - SMAJ60CA-E3/61 alone does not carry that qualification.
SMAJ60CA-E3/61 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:
- -
- Bidirectional Channels:
- 1
- 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)
SMAJ60CA-E3/61 FAQ
1.How can I place an order for SMAJ60CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60CA-E3/61 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 SMAJ60CA-E3/61 reliable?
The price and inventory of SMAJ60CA-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60CA-E3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ60CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60CA-E3/61?
SMAJ60CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60CA-E3/61 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 SMAJ60CA-E3/61?
For technical support, including SMAJ60CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60CA-E3/61 requirements.
6.How does Aetrix verify that SMAJ60CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ60CA-E3/61 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 SMAJ60CA-E3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ60CA-E3/61?
All SMAJ60CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60CA-E3/61, 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 SMAJ60CA-E3/61 part is unused and in its original packaging.
Return procedure for SMAJ60CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ60CA-E3/61 Tags
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