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Vishay General Semiconductor - Diodes Division SMA5J7.0AHE3/61
- Part No.:
- SMA5J7.0AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.0AHE3/61.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,262
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Product details
Overview
SMA5J7.0AHE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 7.0 V stand-off voltage (VWM), 7.78–8.60 V breakdown voltage (VBR at 10 mA), 12.0 V clamping voltage (VC) at 41.7 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform. It is AEC-Q101 qualified and RoHS-compliant, used in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMA5J7.0AHE3/61 datasheet, SMA5J7.0AHE3/61 pinout, SMA5J7.0AHE3/61 application, or SMA5J7.0AHE3/61 equivalent, key selection criteria include clamping performance under 41.7 A surge, thermal resistance (RθJA = 80 °C/W), AEC-Q101 qualification status, unidirectional polarity marking, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 7.0 V, it avalanches to limit transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low leakage (<1 µA at VWM), while the low incremental surge resistance enables rapid clamping response within picoseconds.
The device is rated for non-repetitive 10/1000 µs surges up to 500 W and handles 40 A peak forward surge (8.3 ms half-sine), making it suitable for inductive load switching transients in 12 V automotive systems. Junction temperature range spans −55 °C to +150 °C, with MSL Level 1 moisture sensitivity and matte tin-plated leads compliant with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before avalanche conduction begins; sets minimum system rail margin. |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - Confirmed breakdown threshold range defining turn-on consistency across production lots. |
| VC @ IPPM | 12.0 V at 41.7 A - Clamped voltage during full-rated 500 W transient; determines maximum stress on downstream ICs. |
| PPPM | 500 W - Peak pulse power handling per 10/1000 µs waveform; defines single-event surge robustness. |
| IFSM | 40 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports relay/coil driver protection. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| RθJA | 80 °C/W - Thermal resistance junction-to-ambient on standard 5.0 mm × 5.0 mm pads; informs PCB thermal design. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with cathode band marking. Matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to protected line (e.g., 12 V rail); conducts during positive transients only in unidirectional mode. |
| Cathode | Reverse-biased terminal / Clamping reference | Marked with band; tied to system ground; avalanche conduction initiates here when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control units and body modules under stress conditions per JESD22. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1 µA at VWM) over temperature and lifetime. |
| Low incremental surge resistance | Enables fast clamping response and minimal overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a). |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without preconditioning; compatible with standard SMT assembly lines. |
| 500 W peak pulse power | Provides robust protection against high-energy surges such as load dump (ISO 16750-2) in 12 V systems. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and inductive switching transients per ISO 16750-2. IC Role / Device Role / Timing Role: Shunt-type transient voltage suppressor placed between power rail and chassis ground. Use Value: Limits clamped voltage to 12.0 V during 41.7 A surge, preventing damage to downstream 16-bit microcontrollers and CAN transceivers. | Use Scenario: Safeguarding analog input pins of industrial temperature sensors connected to PLC analog input modules. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (used in reverse-biased configuration) guarding low-voltage signal traces. Use Value: Withstands 500 W surges while maintaining <1 µA leakage at 7.0 V, preserving sensor accuracy and ADC resolution. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
Use Scenario: Input-stage surge suppression in wall-mounted AC/DC adapters for smart home hubs and gateways. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side 5–12 V DC output rails. Use Value: Fast response time and 80 °C/W RθJA allow reliable operation in compact enclosures without forced airflow. | Use Scenario: Overvoltage protection on -48 V DC feeder lines powering remote radio units in 4G/5G base stations. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to negative rail, absorbing positive-going lightning-induced surges. Use Value: 7.0 V VWM aligns with telecom DC supervision thresholds; 150 °C TJ max supports outdoor cabinet operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.0A-E3/61 | Commercial-grade version; lacks AEC-Q101 qualification and halogen-free construction. | Approved for consumer and industrial use only; not permitted in automotive production. | Select when AEC-Q101 is not required and cost optimization is prioritized. |
| SMA5J7.0CAHE3/61 | Bidirectional variant; symmetrical VBR (±7.78–8.60 V); no polarity marking. | Required for AC-coupled or floating signal lines where bidirectional transients occur (e.g., RS-485). | Choose only if protection against both polarities is needed; otherwise, SMA5J7.0AHE3/61 offers tighter VC margin in unidirectional layouts. |
Compared with SMA5J7.0A-E3/61, the SMA5J7.0AHE3/61 adds automotive qualification and halogen-free compliance without changing electrical specs; versus SMA5J7.0CAHE3/61, it provides lower clamping voltage in DC applications but requires correct polarity orientation during placement.
Availability
SMA5J7.0AHE3/61 is available at Aetrix Electronics and suitable for automotive ECU designs, industrial sensor interface boards, and telecom DC power feeders requiring stable component supply and long-term lifecycle support.
Supply support for SMA5J7.0AHE3/61 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 and automotive-grade validation.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications-particularly automotive power distribution, industrial automation, and telecom infrastructure where AEC-Q101 compliance and 500 W surge capability are mandatory.
FAQ
What is the clamping voltage of the SMA5J7.0AHE3/61 under full-rated surge current?
The SMA5J7.0AHE3/61 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 under standardized test conditions with the device mounted on 5.0 mm × 5.0 mm copper pads per JEDEC guidelines. The clamping voltage directly determines the maximum stress imposed on protected circuitry during surge events.
Is the SMA5J7.0AHE3/61 suitable for automotive applications?
Yes, the SMA5J7.0AHE3/61 is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix. It meets stress testing requirements for temperature cycling, humidity bias, mechanical shock, and surge immunity defined in the AEC-Q101 standard. Its −55 °C to +150 °C operating junction temperature range supports under-hood deployment in modern vehicles.
How does the SMA5J7.0AHE3/61 differ from the SMA5J7.0A-E3/61?
The SMA5J7.0AHE3/61 differs from the SMA5J7.0A-E3/61 in three key ways: it carries AEC-Q101 qualification, uses halogen-free molding compound, and conforms to JESD201 Class 2 whisker resistance. Electrically and dimensionally, both share identical VWM, VBR, VC, PPPM, and SMA (DO-214AC) packaging. The HE3 version is mandatory for automotive production; the E3 version is limited to commercial/industrial use.
What is the polarity configuration of the SMA5J7.0AHE3/61?
The SMA5J7.0AHE3/61 is a unidirectional TVS diode. Its cathode is marked by a visible band on the SMA (DO-214AC) package body. During normal operation, it blocks reverse current up to 7.0 V (VWM). When a transient exceeds the breakdown voltage (7.78–8.60 V), it conducts in the reverse direction-shunting surge current from anode to cathode (i.e., from protected line to ground).
Can the SMA5J7.0AHE3/61 be used in bidirectional protection circuits?
No-the SMA5J7.0AHE3/61 is strictly unidirectional and must not be substituted for bidirectional protection without circuit redesign. For bidirectional applications (e.g., AC lines or differential buses), Vishay specifies the SMA5J7.0CAHE3/61 variant, which has symmetrical breakdown in both directions and no polarity marking. Using SMA5J7.0AHE3/61 in reverse-biased configurations risks permanent failure due to forward conduction during negative transients.
SMA5J7.0AHE3/61 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:
- 1
- Bidirectional Channels:
- -
- 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)
SMA5J7.0AHE3/61 FAQ
1.How can I place an order for SMA5J7.0AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.0AHE3/61 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 SMA5J7.0AHE3/61 reliable?
The price and inventory of SMA5J7.0AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J7.0AHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J7.0AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.0AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.0AHE3/61?
SMA5J7.0AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.0AHE3/61 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 SMA5J7.0AHE3/61?
For technical support, including SMA5J7.0AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.0AHE3/61 requirements.
6.How does Aetrix verify that SMA5J7.0AHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J7.0AHE3/61 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 SMA5J7.0AHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J7.0AHE3/61?
All SMA5J7.0AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.0AHE3/61, 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 SMA5J7.0AHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J7.0AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J7.0AHE3/61 Tags
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