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Vishay General Semiconductor - Diodes Division SMAJ60CAHE3_A/I
- Part No.:
- SMAJ60CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60CAHE3_A/I.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,462
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Product details
Overview
SMAJ60CAHE3_A/I 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 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, and 400 W peak pulse power rating (10/1000 μs waveform). It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power systems.
For engineers reviewing the SMAJ60CAHE3_A/I datasheet, SMAJ60CAHE3_A/I pinout, SMAJ60CAHE3_A/I application, or SMAJ60CAHE3_A/I equivalent, this device serves as a surface-mount, bidirectional TVS for fast-response surge suppression in DC power rails, CAN bus interfaces, and low-voltage sensor inputs where reliability under repetitive transients is critical.
Technical Context
The SMAJ60CAHE3_A/I operates as a voltage-clamping device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold, limiting transient energy to protected circuitry. Its bidirectional symmetry enables use on AC-coupled or floating signal paths without polarity concerns, and its low incremental surge resistance ensures minimal voltage overshoot during high-current surges.
Designed for 10/1000 μs standard lightning surge waveforms, it delivers 400 W peak pulse power up to 78 V and derates to 300 W above that level. Its junction-to-lead thermal resistance (RθJL = 30 °C/W) supports reliable operation under repeated surge events when mounted on recommended 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC or RMS working limit. |
| VBR (min/max) | 66.7 V / 73.7 V at 1 mA - Breakdown onset range; ensures consistent clamping activation across production units. |
| VC @ IPPM | 96.8 V at 4.1 A - Clamped voltage during 10/1000 μs surge; determines maximum stress imposed on downstream components. |
| PPPM | 400 W - Peak pulse power handling (≤78 V); defines transient energy absorption capacity per event. |
| IFSM | 40 A - Non-repetitive forward surge current rating (8.3 ms half-sine); supports unidirectional fault tolerance. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | SMA (DO-214AC) - Surface-mount package with 2.54 mm lead pitch; compatible with automated placement and reflow. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, MSL Level 1 compliant (peak reflow 260 °C), UL 94 V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Not functional in bidirectional clamping mode; symmetric structure allows either terminal to serve as input under transient polarity reversal. |
| Cathode | Current exit terminal in forward bias | No band marking on SMAJ60CAHE3_A/I (bidirectional type); terminals are electrically interchangeable for transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or floating nodes (e.g., differential sensor outputs, CAN H/L) without polarity constraints. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surges on 2 Ω source impedance when properly laid out. |
| Fast response time (<1 ps) | Clamps transients before downstream CMOS or logic inputs experience destructive overvoltage. |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes overvoltage margin required in protected circuit design, improving system-level robustness. |
Applications
| Automotive Power Rail Protection | CAN Bus Transient Suppression |
|---|---|
|
Use Scenario: 12 V battery line in vehicle infotainment head unit exposed to load dump and jump-start surges. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed upstream of DC/DC converter input to limit transients to ≤100 V. Use Value: Prevents damage to buck controller ICs by clamping 100 V+ load dump spikes to 96.8 V within nanoseconds. |
Use Scenario: High-speed CAN FD communication between ECU and camera module in ADAS system. IC Role / Device Role / Timing Role: Bidirectional TVS connected across CAN_H and CAN_L lines to absorb ESD and inductive switching noise. Use Value: Maintains signal integrity by suppressing ±30 kV contact ESD (IEC 61000-4-2) without adding capacitance that degrades bit rate. |
| Industrial Sensor Signal Conditioning | Consumer Appliance Motor Drive Inputs |
|
Use Scenario: 4–20 mA current loop interface in factory floor pressure transmitter subject to field wiring transients. IC Role / Device Role / Timing Role: TVS placed across loop terminals to shunt induced surges away from op-amp input stage and ADC reference. Use Value: Ensures measurement continuity by preventing latch-up or offset drift in analog front-end during 1 kV ring wave transients. |
Use Scenario: Input rectifier stage of BLDC motor driver in smart washing machine exposed to relay coil kickback. IC Role / Device Role / Timing Role: Bidirectional TVS across bridge rectifier output to clamp inductive spikes from main motor relay. Use Value: Extends lifetime of electrolytic bulk capacitor and gate driver IC by limiting voltage overshoot to 96.8 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60CA-E3/61 | Same electrical specs and SMA package; RoHS-compliant commercial grade (non-AEC-Q101). | Lacks automotive qualification; suitable for industrial/commercial designs without AEC requirements. | Select when AEC-Q101 is not mandated and cost optimization is prioritized. |
| SMBJ60CAHE3_A/I | Same VWM, VBR, VC; higher 600 W PPPM rating due to SMB (DO-214AA) package with larger thermal mass. | Requires larger PCB footprint; better suited for systems with frequent or high-energy surges. | Choose when surge repetition rate or energy level exceeds SMAJ60CAHE3_A/I's 400 W capability. |
Compared with SMAJ60CAHE3_A/I, SMAJ60CA-E3/61 offers identical protection performance without automotive qualification, while SMBJ60CAHE3_A/I provides higher surge energy handling at the cost of increased board area-enabling tiered selection based on environmental severity and qualification needs.
Availability
SMAJ60CAHE3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, and consumer appliance motor controls requiring stable component supply with long-term lifecycle support.
Supply support for SMAJ60CAHE3_A/I 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, and protection devices with emphasis on reliability and automotive-grade validation.
The SMAJ series is engineered for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness against ESD, EFT, and surge events is mandatory.
FAQ
What is the clamping voltage of the SMAJ60CAHE3_A/I under a 10/1000 μs surge?
The SMAJ60CAHE3_A/I has a maximum clamping voltage (VC) of 96.8 V at 4.1 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 test conditions and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The SMAJ60CAHE3_A/I maintains this clamping performance across its full operating temperature range.
Is SMAJ60CAHE3_A/I suitable for bidirectional signal line protection?
Yes, SMAJ60CAHE3_A/I is explicitly designed for bidirectional use, as indicated by the "CA" suffix and confirmed in Vishay's datasheet. Its symmetrical breakdown characteristics allow it to suppress transients of either polarity across AC-coupled or floating nodes-such as CAN bus lines, RS-485 differential pairs, or audio inputs-without requiring orientation-specific placement.
Does SMAJ60CAHE3_A/I meet automotive qualification standards?
Yes, SMAJ60CAHE3_A/I is AEC-Q101 qualified, as specified in Vishay's ordering information and mechanical data sections. This qualification validates its reliability for automotive applications including powertrain, chassis, and body electronics, supporting operation from −55 °C to +150 °C and passing stress tests for temperature cycling, humidity, and mechanical shock.
What is the thermal resistance of SMAJ60CAHE3_A/I from junction to lead?
The SMAJ60CAHE3_A/I has a typical junction-to-lead thermal resistance (RθJL) of 30 °C/W, enabling efficient heat transfer from the silicon die to the PCB copper through its soldered leads. This parameter is critical for managing temperature rise during repetitive surge events and supports sustained operation when mounted on the recommended 5.0 mm × 5.0 mm copper pad layout per terminal.
How does the packaging suffix "HE3_A/I" affect SMAJ60CAHE3_A/I specifications?
"HE3" denotes RoHS-compliant construction with AEC-Q101 qualification; "A" indicates revision level; "I" specifies 7500-unit tape-and-reel packaging on 13-inch reels. These suffixes do not alter electrical or thermal specifications-only compliance status, traceability, and logistics format. All core parameters (VWM, VBR, VC, PPPM) remain identical to other SMAJ60CA variants in the same family.
SMAJ60CAHE3_A/I 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ60CAHE3_A/I FAQ
1.How can I place an order for SMAJ60CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60CAHE3_A/I 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 SMAJ60CAHE3_A/I reliable?
The price and inventory of SMAJ60CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMAJ60CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60CAHE3_A/I?
SMAJ60CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60CAHE3_A/I 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 SMAJ60CAHE3_A/I?
For technical support, including SMAJ60CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60CAHE3_A/I requirements.
6.How does Aetrix verify that SMAJ60CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMAJ60CAHE3_A/I 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 SMAJ60CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMAJ60CAHE3_A/I?
All SMAJ60CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60CAHE3_A/I, 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 SMAJ60CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMAJ60CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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