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Vishay General Semiconductor - Diodes Division SMA5J7.0CHE3/61
- Part No.:
- SMA5J7.0CHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.0CHE3/61.pdf
- Description:
- TVS DIODE 7VWM 13.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,349
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Product details
Overview
SMA5J7.0CHE3/61 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on signal and power lines. It features a 7.0 V stand-off voltage (VWM), 12.0 V clamping voltage (VC) at 41.7 A peak pulse current (IPPM), and 500 W peak pulse power (10/1000 µs waveform), with AEC-Q101 qualification for automotive electronics.
For engineers reviewing the SMA5J7.0CHE3/61 datasheet, SMA5J7.0CHE3/61 pinout, SMA5J7.0CHE3/61 application, or SMA5J7.0CHE3/61 equivalent, key selection criteria include bi-directional clamping capability, low incremental surge resistance, MSL Level 1 moisture sensitivity, and RoHS-compliant AEC-Q101 qualification for harsh-environment deployment.
Technical Context
This TVS diode operates symmetrically in both directions due to its bi-directional construction, enabling robust protection against positive and negative transients without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the DO-214AC package supports automated placement and meets UL 94 V-0 flammability rating.
The device delivers 500 W peak pulse power handling under standardized 10/1000 µs waveform conditions, with thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead). It is rated for continuous operation from –55 °C to +150 °C and qualified per AEC-Q101 for automotive reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum reverse stand-off voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR min/max | 7.78 V / 8.60 V - Breakdown voltage range at 10 mA test current; ensures consistent turn-on threshold across production lots. |
| VC @ IPPM | 12.0 V - Clamping voltage at 41.7 A peak pulse current; limits transient overvoltage seen by downstream ICs. |
| PPPM | 500 W - Peak pulse power dissipation (10/1000 µs); enables suppression of high-energy surges like ISO 7637-2 Pulse 5a. |
| IPPM | 41.7 A - Peak pulse current corresponding to VC; determines minimum trace width and PCB layout margin for surge path. |
| TJ max | +150 °C - Maximum junction temperature; supports 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. |
Pinout & Package
DO-214AC (SMA) surface-mount package with two terminals: anode and cathode. Bi-directional configuration means no polarity marking; terminals are functionally identical and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (positive half-cycle) | Accepts surge energy during positive transients; forms symmetrical conduction path with cathode. |
| Cathode | Transient current entry point (negative half-cycle) | Accepts surge energy during negative transients; completes bi-directional clamping loop with anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal stress and humidity exposure. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive 3.3 V or 5 V logic interfaces. |
| MSL Level 1 rating | Eliminates pre-reflow baking requirements and supports direct placement into high-volume SMT assembly lines. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients per ISO 7637-2. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed at power input stage to limit voltage excursions to ≤12.0 V during 500 W surges. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers exposed to repetitive 100 V/50 ms pulses. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation systems from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance bi-directional suppressor installed at connector interface to shunt ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity below 100 pF capacitance while clamping transients to safe levels for 24-bit ADC front-ends. |
| Telecom Data Line Surge Suppression | Consumer USB Port Overvoltage Protection |
Use Scenario: Safeguarding RS-485 transceivers in outdoor telecom cabinets subjected to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary-level TVS on differential bus lines, coordinated with secondary GDT or MOV stages for staged energy absorption. Use Value: Withstands repeated 500 W surges without degradation, extending field service life beyond 10 years in unattended infrastructure. | Use Scenario: Adding robust overvoltage defense to USB Type-A ports in smart home hubs exposed to accidental 12 V adapter misconnection. IC Role / Device Role / Timing Role: Standoff-rated bi-directional clamp that activates only above 7.0 V, avoiding interference with normal 5 V USB signaling. Use Value: Eliminates need for series resistors or voltage dividers while providing fail-safe shutdown at 12.0 V clamping level. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.0AHE3/61 | Same electrical specs and AEC-Q101 qualification; differs only in packaging suffix notation (HE3 vs. HE3/61 denotes same reel size and tape format). | No functional difference; identical use cases and board-level integration. | Select SMA5J7.0CHE3/61 when ordering from distributors using /61 reel code; SMA5J7.0AHE3/61 is manufacturer's alternate part number for same physical device. |
| SMA6J7.0AHE3/61 | Higher 600 W PPPM rating, same VWM/VC, but larger DO-214AB (SMB) package (4.58 mm × 3.94 mm vs. SMA's 4.50 mm × 2.79 mm). | Requires PCB footprint change; suited for higher-surge industrial designs where space permits. | Choose SMA6J7.0AHE3/61 only if system-level surge testing exceeds 500 W; otherwise SMA5J7.0CHE3/61 provides optimal power density. |
Compared with SMA5J7.0AHE3/61, SMA5J7.0CHE3/61 is identical in performance and qualification; compared with SMA6J7.0AHE3/61, it offers 20 % smaller footprint and lower thermal resistance (80 vs. 90 °C/W), making it preferred for space-constrained automotive modules.
Availability
SMA5J7.0CHE3/61 is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, and telecom data line surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMA5J7.0CHE3/61 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, efficiency, and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in automotive and industrial environments, delivering AEC-Q101-qualified bi-directional clamping in compact DO-214AC packages to meet stringent ISO 7637 and IEC 61000-4-x compliance requirements.
FAQ
What is the clamping voltage of the SMA5J7.0CHE3/61 under maximum surge conditions?
The SMA5J7.0CHE3/61 has a maximum clamping voltage (VC) of 12.0 V at its rated peak pulse current of 41.7 A (10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 standards and guarantees that protected circuitry will not experience voltages exceeding 12.0 V during specified surge events. The SMA5J7.0CHE3/61 maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is the SMA5J7.0CHE3/61 suitable for automotive applications?
Yes, the SMA5J7.0CHE3/61 is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and infotainment systems. Its bi-directional architecture, 500 W surge rating, and operation up to +150 °C junction temperature align with ISO 7637-2 load dump and pulse immunity requirements. The SMA5J7.0CHE3/61 also meets J-STD-020 MSL Level 1 for lead-free reflow compatibility in automotive manufacturing.
Does the SMA5J7.0CHE3/61 have polarity markings on the package?
No, the SMA5J7.0CHE3/61 does not feature polarity markings because it is a bi-directional TVS diode. Unlike uni-directional variants (e.g., SMA5J7.0A), the SMA5J7.0CHE3/61 functions identically in both directions and has no cathode band or other orientation indicators. This simplifies PCB layout and eliminates risk of incorrect orientation during assembly.
What is the thermal resistance of the SMA5J7.0CHE3/61, and how does it affect PCB layout?
The SMA5J7.0CHE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W and junction-to-lead resistance (RθJL) of 25 °C/W. These values assume mounting on 0.2" × 0.2" copper pads per terminal. To maintain safe junction temperatures during repeated surges, PCB layout must provide adequate copper area and thermal vias-especially critical in automotive under-hood applications where ambient temperatures exceed 85 °C. The SMA5J7.0CHE3/61's low RθJL supports efficient heat transfer to the PCB ground plane.
How does the SMA5J7.0CHE3/61 compare to uni-directional TVS diodes in circuit protection design?
The SMA5J7.0CHE3/61 provides symmetrical clamping for both positive and negative transients, eliminating the need for external polarity conditioning circuits required by uni-directional TVS diodes. This makes it ideal for AC-coupled lines, differential buses (e.g., RS-485), and automotive power inputs where reverse battery or load dump polarity is unpredictable. While uni-directional types offer slightly lower leakage at VWM, the SMA5J7.0CHE3/61's 800 µA max reverse leakage at 7.0 V remains compatible with most low-power sensor and communication interfaces.
SMA5J7.0CHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 13.3V
- Current - Peak Pulse (10/1000µs):
- 37.6A
- 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)
SMA5J7.0CHE3/61 FAQ
1.How can I place an order for SMA5J7.0CHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.0CHE3/61 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 SMA5J7.0CHE3/61 reliable?
The price and inventory of SMA5J7.0CHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J7.0CHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J7.0CHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.0CHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.0CHE3/61?
SMA5J7.0CHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.0CHE3/61 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 SMA5J7.0CHE3/61?
For technical support, including SMA5J7.0CHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.0CHE3/61 requirements.
6.How does Aetrix verify that SMA5J7.0CHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J7.0CHE3/61 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 SMA5J7.0CHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J7.0CHE3/61?
All SMA5J7.0CHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.0CHE3/61, 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 SMA5J7.0CHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J7.0CHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J7.0CHE3/61 Tags
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