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Vishay General Semiconductor - Diodes Division SMA5J7.0CAHE3/61
- Part No.:
- SMA5J7.0CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.0CAHE3/61.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,095
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Product details
Overview
SMA5J7.0CAHE3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 7.0 V stand-off voltage (VWM), 6.4 V minimum breakdown voltage (VBR), 12.0 V maximum clamping voltage (VC) at 41.7 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform - used to safeguard automotive sensor interfaces and industrial I/O circuits against ESD and load dump transients.
For engineers reviewing the SMA5J7.0CAHE3/61 datasheet, SMA5J7.0CAHE3/61 pinout, SMA5J7.0CAHE3/61 application, or SMA5J7.0CAHE3/61 equivalent, key selection criteria include bidirectional polarity, AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.71), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during transient events, leveraging an avalanche breakdown mechanism to divert surge current away from protected circuitry. Its bidirectional symmetry ensures identical electrical characteristics in both polarities, with no cathode marking required.
The SMA5J7.0CAHE3/61 is rated for -55 °C to +150 °C junction temperature, exhibits 80 °C/W junction-to-ambient thermal resistance, and maintains stable performance under repetitive surges when derated per Fig. 2 of the datasheet - critical for automotive body control modules and industrial PLC inputs exposed to frequent switching transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working margin for 5 V–7 V logic/sensor rails. |
| VBR (min) | 6.4 V - Minimum breakdown voltage at 10 mA test current; guarantees reliable turn-on above normal system voltage. |
| VC @ IPPM | 12.0 V - Clamped voltage at 41.7 A peak pulse current; limits stress on downstream ICs during 500 W transients. |
| PPPM | 500 W - Peak pulse power handling with 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 surge immunity. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| MSL Level | Level 1 (per J-STD-020) - No floor life limitation; allows indefinite storage and standard reflow without baking. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control, ADAS sensors, and infotainment power domains. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H), matte tin-plated leads, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | No designated anode or cathode; terminals are interchangeable - enables single-component protection on AC-coupled or floating lines. |
| Case (body) | Thermal and mechanical interface | Exposed metal-free plastic case; heat dissipation relies on PCB copper pads (0.2" × 0.2") per terminal per datasheet Fig. 2 derating curve. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin. |
| Fast response time (< 1 ps) | Clamps within picoseconds of transient onset - faster than MOVs or polymer-based protectors - preserving signal integrity. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade production use, including temperature cycling, mechanical shock, and accelerated life testing. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between signal line and ground, absorbing up to 500 W surges without degradation. Use Value: Maintains VC ≤ 12.0 V during 41.7 A transients - well below 16 V absolute max rating of typical automotive transceivers. | Use Scenario: Shielding programmable logic controller (PLC) digital input channels from inductive kickback caused by relay and solenoid switching. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor across input terminals, triggered only during overvoltage events > 7.0 V. Use Value: Enables robust 24 V DC input design with <1.7× clamping ratio (VC/VWM), reducing need for upstream series impedance. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side surge suppression in USB-C PD adapters and wall chargers subjected to lightning-induced surges on DC output lines. IC Role / Device Role / Timing Role: Fast-acting shunt protector on 5 V/9 V/15 V output rails, activated before downstream DC-DC controllers latch or fail. Use Value: 500 W rating supports EN 61000-4-5 compliance at 2 kV line-earth; RoHS-compliant HE3 suffix meets global regulatory requirements. | Use Scenario: Protecting Ethernet PHY interfaces and RS-485 transceivers in base station equipment from ESD and induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Bidirectional clamp across differential pair (A/B) or common-mode line-to-ground, symmetrically limiting voltage excursions. Use Value: 12.0 V clamping voltage preserves signal swing headroom while meeting IEC 61000-4-2 Level 4 (15 kV air/8 kV contact) ESD immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.0CA-M3/61 | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification absent. | Suitable for commercial/industrial designs requiring halogen-free materials but not automotive qualification. | Select when halogen-free compliance is mandatory and AEC-Q101 is not required. |
| SMC5J7.0CAHE3/61 | Same electrical specs but in larger SMC (DO-214AB) package; higher thermal mass, RθJA = 35 °C/W vs. 80 °C/W. | Better suited for high-repetition-rate surges or higher ambient temperatures where SMA thermal limits are exceeded. | Choose when board space permits and thermal derating margins are insufficient with SMA footprint. |
Compared with SMA5J7.0CAHE3/61, the M3 variant trades AEC-Q101 for halogen-free construction, while the SMC5J7.0CAHE3/61 offers superior thermal performance at the cost of 2.5× PCB area - enabling longer surge duty cycles in industrial motor drives.
Availability
SMA5J7.0CAHE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and telecom infrastructure requiring stable component supply with AEC-Q101 validation and full traceability.
Supply support for SMA5J7.0CAHE3/61 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, power density, and automotive-grade qualification.
The SMA5J family is engineered for high-power-density transient suppression in space-constrained applications - targeting automotive, industrial, and consumer systems where 500 W surge capability must coexist with SMT automation and AEC-Q101 compliance.
FAQ
What is the polarity configuration of the SMA5J7.0CAHE3/61?
The SMA5J7.0CAHE3/61 is a bidirectional TVS diode, meaning it provides symmetrical clamping in both forward and reverse directions. There is no cathode band or polarity marking on the device body - both terminals are functionally identical, making it ideal for AC-coupled or floating signal lines such as CAN bus or RS-485 differential pairs.
Does the SMA5J7.0CAHE3/61 meet automotive qualification standards?
Yes, the SMA5J7.0CAHE3/61 is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number. This qualification covers stress tests including temperature cycling, mechanical shock, and accelerated life testing - validating its suitability for automotive powertrain, chassis, and body electronics applications per Vishay Document Number 88875.
What is the maximum clamping voltage for the SMA5J7.0CAHE3/61 under surge conditions?
The SMA5J7.0CAHE3/61 has a maximum clamping voltage (VC) of 12.0 V at its rated peak pulse current (IPPM) of 41.7 A, measured with a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and forms the basis for determining safe voltage margins for protected ICs in designs using this device.
How does the SMA5J7.0CAHE3/61 differ from unidirectional variants like SMA5J7.0AHE3/61?
The SMA5J7.0CAHE3/61 is bidirectional with symmetrical VBR and VC in both directions, whereas the unidirectional SMA5J7.0AHE3/61 has a cathode band and conducts only in reverse bias. The "CA" suffix explicitly denotes bidirectionality, and electrical characteristics apply identically in either polarity - essential for protecting AC signals or differential buses.
What PCB layout guidance applies to the SMA5J7.0CAHE3/61 for optimal thermal performance?
Per Vishay's datasheet, the SMA5J7.0CAHE3/61 must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 500 W pulse power and proper thermal derating. Smaller pads increase junction temperature and reduce surge capability - especially critical in automotive under-hood applications where ambient temperatures exceed 85 °C.
SMA5J7.0CAHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 41.7A
- Power - Peak Pulse:
- 500W
- 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)
SMA5J7.0CAHE3/61 FAQ
1.How can I place an order for SMA5J7.0CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.0CAHE3/61 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 SMA5J7.0CAHE3/61 reliable?
The price and inventory of SMA5J7.0CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J7.0CAHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J7.0CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.0CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.0CAHE3/61?
SMA5J7.0CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.0CAHE3/61 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 SMA5J7.0CAHE3/61?
For technical support, including SMA5J7.0CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.0CAHE3/61 requirements.
6.How does Aetrix verify that SMA5J7.0CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J7.0CAHE3/61 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 SMA5J7.0CAHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J7.0CAHE3/61?
All SMA5J7.0CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.0CAHE3/61, 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 SMA5J7.0CAHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J7.0CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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