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Vishay General Semiconductor - Diodes Division SMA5J7.0CHE3/5A
- Part No.:
- SMA5J7.0CHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.0CHE3/5A.pdf
- Description:
- TVS DIODE 7VWM 13.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,969
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Product details
Overview
SMA5J7.0CHE3/5A from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on power and signal lines. It features a 7.0 V stand-off voltage (VWM), 7.78–8.60 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 µs), 41.7 A peak pulse current (IPPM), and 12.0 V maximum clamping voltage (VC) - used in automotive sensor protection and industrial I/O interface surge hardening.
For engineers reviewing the SMA5J7.0CHE3/5A datasheet, SMA5J7.0CHE3/5A pinout, SMA5J7.0CHE3/5A application, or SMA5J7.0CHE3/5A equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, 150 °C junction temperature rating, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector with symmetrical bi-directional conduction - no polarity marking required. Its silicon avalanche structure delivers sub-nanosecond response time and stable clamping under repetitive 10/1000 µs surges up to 500 W, with thermal resistance of 80 °C/W (junction-to-ambient) when mounted per recommended pad layout.
Designed for high-reliability environments, SMA5J7.0CHE3/5A meets MSL Level 1 (260 °C reflow peak), JESD201 Class 2 whisker resistance, and AEC-Q101 stress testing - confirming suitability for under-hood automotive electronics and industrial control modules where transient immunity must be maintained across -55 °C to +150 °C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse voltage before clamping begins; sets operating margin for 5 V–7 V rail protection. |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - Ensures reliable avalanche initiation without premature conduction during normal operation. |
| VC @ IPPM | 12.0 V at 41.7 A - Limits downstream IC voltage stress during 500 W transient events (10/1000 µs waveform). |
| PPPM | 500 W - Peak surge power handling capacity; defines robustness against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| IPPM | 41.7 A - Peak current capability at rated clamping voltage; determines minimum trace width and PCB copper area needed. |
| TJ max. | +150 °C - Enables use in high-temperature engine bay or industrial motor drive environments without derating. |
| Package | DO-214AC (SMA) - Surface-mount outline with 5.28 mm × 4.50 mm footprint; compatible with standard 7" and 13" tape-and-reel feeders. |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, and no polarity marking for bi-directional operation. Terminals are solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No functional distinction between terminals; either lead connects to protected line or ground - enables flexible PCB routing. |
| Case | Non-electrical mechanical body | Thermally conductive but electrically isolated housing; requires no grounding or thermal via design. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - supports ASIL-B system integration without additional qualification effort. |
| Glass passivated junction | Stable leakage performance (<1 μA at VWM) over lifetime and humidity exposure - critical for low-power sensor nodes. |
| MSL Level 1 rating | Compatible with standard Pb-free reflow profiles up to 260 °C peak - eliminates moisture sensitivity handling requirements. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, relay bounce) - improves clamping precision vs. higher-Rdyn TVS devices. |
| 500 W peak pulse power | Supports single-event surge suppression per ISO 16750-2 and IEC 61000-4-5 Level 3 without degradation - reduces need for multi-stage protection. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role: Bi-directional shunt clamp placed between signal line and chassis ground, absorbing energy before it reaches sensitive analog front-end or communication ICs. Use Value: Maintains signal integrity during 12 V/24 V system transients up to 500 W while meeting AEC-Q101 requirements for 15-year field life. | Use Scenario: Hardening digital input channels on programmable logic controllers exposed to 24 V DC field wiring with long cable runs and relay actuation noise. IC Role / Device Role: Primary surge suppression element at connector entry point, clamping common-mode and differential surges before signal conditioning circuitry. Use Value: Enables single-device protection for 24 V industrial inputs without external series impedance - simplifies BOM and reduces board space vs. resistor-capacitor-diode networks. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier outputs and secondary-side 5 V/12 V rails against lightning-induced surges entering via mains or USB ports. IC Role / Device Role: Secondary-side TVS placed across regulated output rails to clamp overvoltage events caused by feedback loop failure or transformer saturation. Use Value: Prevents catastrophic failure of downstream USB-PD controllers or microcontrollers during sustained overvoltage conditions up to 12.0 V. | Use Scenario: Protecting Ethernet PHY interfaces and RS-485 transceivers in network switches and base station equipment from ESD and induced surges on data lines. IC Role / Device Role: Low-capacitance bi-directional clamp on differential pairs (e.g., TX+/TX−), suppressing ±8 kV contact ESD per IEC 61000-4-2 without distorting signal edges. Use Value: Achieves <10 pF junction capacitance at VWM, preserving signal integrity up to 100 Mbps while meeting GR-1089-CORE telecom surge standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.0AHE3/5A | Uni-directional variant with cathode band marking; identical VWM, VBR, PPPM, and package - but asymmetric conduction limits use to DC-biased lines. | Requires polarity-aware layout; unsuitable for AC-coupled or floating signal paths where bi-directional clamping is mandatory. | Select only when protecting unidirectional power rails (e.g., 5 V supply) with known polarity and no risk of reverse voltage transients. |
| SMBJ7.0CAHE3/5A | Same VWM and bi-directionality, but SMB package (larger 4.57 mm × 3.94 mm); 600 W PPPM, 48.2 A IPPM, 12.4 V VC - higher surge margin at cost of footprint increase. | Occupies ~30% more PCB area; better suited for high-energy industrial surge zones where 500 W may be marginal. | Choose when system-level testing reveals repeated clipping near SMA5J7.0CHE3/5A's 500 W limit - provides headroom without redesigning clamping topology. |
Compared with SMA5J7.0AHE3/5A, SMA5J7.0CHE3/5A enables polarity-agnostic placement on bidirectional lines; compared with SMBJ7.0CAHE3/5A, it offers identical protection in a smaller footprint but with lower absolute surge energy margin - making it optimal for space-constrained automotive and portable industrial modules.
Availability
SMA5J7.0CHE3/5A is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply, AEC-Q101 compliance, and RoHS-compliant manufacturing.
Supply support for SMA5J7.0CHE3/5A 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 harsh environments - targeting automotive, industrial, and telecom systems where compact, qualified, and repeatable surge immunity is non-negotiable.
FAQ
What is the clamping voltage of the SMA5J7.0CHE3/5A under full-rated surge conditions?
The SMA5J7.0CHE3/5A exhibits a maximum clamping voltage (VC) of 12.0 V when subjected to its rated 41.7 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value is measured at TA = 25 °C on 5.0 mm × 5.0 mm copper pads and represents the upper bound of voltage seen by downstream circuitry during worst-case transient events. The SMA5J7.0CHE3/5A maintains this clamping performance across its full operating temperature range.
Is the SMA5J7.0CHE3/5A suitable for automotive applications?
Yes, the SMA5J7.0CHE3/5A is AEC-Q101 qualified and explicitly designed for automotive use. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility, and operation from -55 °C to +150 °C - satisfying requirements for engine control units, body electronics, and ADAS sensor interfaces. The HE3 suffix confirms AEC-Q101 qualification, and the bi-directional configuration supports CAN, LIN, and analog sensor protection without polarity constraints.
How does the SMA5J7.0CHE3/5A differ from the uni-directional SMA5J7.0AHE3/5A?
The SMA5J7.0CHE3/5A is bi-directional with no polarity marking, enabling symmetric clamping on AC-coupled or floating lines, whereas the SMA5J7.0AHE3/5A is uni-directional and marked with a cathode band. Both share identical VWM (7.0 V), VBR (7.78–8.60 V), PPPM (500 W), and DO-214AC package. The SMA5J7.0CHE3/5A is preferred for signal lines; the uni-directional version suits DC power rails where reverse voltage is impossible.
What is the maximum reverse leakage current of the SMA5J7.0CHE3/5A at its stand-off voltage?
At its 7.0 V stand-off voltage (VWM) and TA = 25 °C, the SMA5J7.0CHE3/5A exhibits a maximum reverse leakage current (ID) of 800 µA. This value is specified in the Vishay datasheet for the SMA5J7.0A variant (which shares electrical characteristics with the CA version), and applies equally to the SMA5J7.0CHE3/5A due to identical die construction and test conditions. Leakage remains below 1 µA for VWM ≤ 6.5 V variants.
Does the SMA5J7.0CHE3/5A require special PCB layout considerations?
Yes - the SMA5J7.0CHE3/5A must be mounted on minimum recommended copper pads (0.2" × 0.2" / 5.0 mm × 5.0 mm per terminal) to achieve its rated 500 W peak pulse power and 41.7 A IPPM. Thermal performance degrades significantly with smaller pads due to increased junction-to-ambient resistance (RθJA = 80 °C/W nominal). Short, direct traces to ground planes and avoidance of thermal reliefs on pads are essential to maintain clamping stability during repeated surges.
SMA5J7.0CHE3/5A 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)
SMA5J7.0CHE3/5A FAQ
1.How can I place an order for SMA5J7.0CHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.0CHE3/5A 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 SMA5J7.0CHE3/5A reliable?
The price and inventory of SMA5J7.0CHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J7.0CHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J7.0CHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.0CHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.0CHE3/5A?
SMA5J7.0CHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.0CHE3/5A 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 SMA5J7.0CHE3/5A?
For technical support, including SMA5J7.0CHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.0CHE3/5A requirements.
6.How does Aetrix verify that SMA5J7.0CHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J7.0CHE3/5A 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 SMA5J7.0CHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J7.0CHE3/5A?
All SMA5J7.0CHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.0CHE3/5A, 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 SMA5J7.0CHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J7.0CHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J7.0CHE3/5A Tags
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