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Vishay General Semiconductor - Diodes Division SMA5J7.5AHE3/61
- Part No.:
- SMA5J7.5AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.5AHE3/61.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,247
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Product details
Overview
SMA5J7.5AHE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal lines. It features a 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1.0 mA test current, 12.9 V clamping voltage (VC) at 100 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 µs waveform. It is AEC-Q101 qualified and RoHS-compliant, used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the SMA5J7.5AHE3/61 datasheet, SMA5J7.5AHE3/61 pinout, SMA5J7.5AHE3/61 application, or SMA5J7.5AHE3/61 equivalent, key selection criteria include clamping performance under 100 A surge, thermal resistance (RθJA = 80 °C/W), unidirectional polarity marking, AEC-Q101 qualification status, 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 VBR, it avalanches to divert surge current away from downstream components. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at VWM), while its low incremental surge resistance enables tight clamping during fast transients.
The device is rated for non-repetitive 10/1000 µs surges up to 500 W and handles 40 A peak forward surge (IFSM, 8.3 ms half-sine). Junction temperature range is –55 °C to +150 °C, and it meets MSL Level 1 (260 °C reflow peak), making it suitable for high-reliability automotive PCB assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for protected circuit. |
| VBR min/max | 8.33 V / 9.21 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot and temperature. |
| VC @ IPPM | 12.9 V at 100 A - Clamped voltage during full-rated surge; determines maximum stress imposed on downstream IC or MOSFET. |
| PPPM | 500 W (10/1000 µs) - Peak transient energy handling capacity; validates robustness against IEC 61000-4-5 Level 4 surges. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance; informs minimum pad area (0.2" × 0.2") required for sustained surge duty. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments without derating. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band at one end; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential rail; completes shunt path during reverse overvoltage events. |
| Cathode | Reverse-biased input terminal | Connected to protected line (e.g., 12 V supply or sensor output); avalanche initiates here when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for engine control and ADAS modules. |
| Glass passivated junction | Stable VBR tolerance and low leakage (<1.0 µA) over life and temperature - critical for long-term sensor interface integrity. |
| MSL Level 1 rating | Compatible with standard 260 °C Pb-free reflow profiles without preconditioning - eliminates moisture sensitivity handling overhead. |
| Low RθJL (25 °C/W) | Efficient heat transfer from junction to lead - enables higher surge repetition rates when mounted on adequate copper. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp surges above 13.5 V. Use Value: Limits rail voltage to ≤12.9 V during 100 A transients, preventing damage to 16 V-rated LDOs and microcontrollers. |
Use Scenario: Analog outputs of pressure/temperature sensors routed through harnesses susceptible to ESD and inductive coupling. IC Role / Device Role / Timing Role: Point-of-entry TVS on sensor output trace, cathode to signal line, anode to ground. Use Value: Clamps ±15 kV ESD (IEC 61000-4-2) and 100 A surges to <13 V, preserving ADC input integrity and avoiding latch-up. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
Use Scenario: Secondary-side 5–12 V DC outputs of wall adapters subject to lightning-induced surges on connected cables. IC Role / Device Role / Timing Role: Final-stage TVS on output rail, positioned after filtering but before connector. Use Value: Absorbs 500 W transients without degradation, maintaining output regulation and preventing downstream USB controller reset. |
Use Scenario: -48 V DC feed lines in telecom base stations exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to system ground, protecting PoE controllers and line drivers. Use Value: Withstands repeated 10/1000 µs surges up to 100 A while maintaining <1 µA leakage at -48 V bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.5A-E3/61 | No AEC-Q101 qualification; commercial grade only; identical electrical specs and package. | Not approved for automotive under-hood use; suitable for consumer/industrial PCBs with lower reliability requirements. | Select SMA5J7.5AHE3/61 when automotive qualification, extended temperature validation, or long-term field reliability are mandatory. |
| SMA6J7.5AHE3/61 | 600 W PPPM rating (vs. 500 W); same VWM/VBR/VC; larger thermal mass due to SMA6 (DO-214AB) package. | Requires larger PCB footprint; better suited for systems with frequent or high-duty-cycle surges. | Choose SMA5J7.5AHE3/61 where space-constrained layouts or cost-sensitive AEC-Q101 compliance are primary constraints. |
Compared with SMA5J7.5A-E3/61, the SMA5J7.5AHE3/61 adds automotive qualification without sacrificing clamping performance or footprint; versus SMA6J7.5AHE3/61, it trades 100 W surge headroom for 20% smaller board area and lower assembly cost in space-limited modules.
Availability
SMA5J7.5AHE3/61 is available at Aetrix Electronics and suitable for automotive power distribution units, industrial sensor interfaces, consumer power adapter outputs, and telecom DC feed protection requiring stable component supply and AEC-Q101 assurance.
Supply support for SMA5J7.5AHE3/61 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 qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications - particularly targeting automotive subsystems, industrial controls, and infrastructure power interfaces where AEC-Q101 compliance and precise clamping are essential.
FAQ
What is the clamping voltage of the SMA5J7.5AHE3/61 under full-rated surge current?
The SMA5J7.5AHE3/61 clamps to a maximum of 12.9 V when subjected to its rated 100 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured at TA = 25 °C on the recommended 5.0 mm × 5.0 mm copper pad layout and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
Is SMA5J7.5AHE3/61 suitable for bidirectional transient protection?
No - SMA5J7.5AHE3/61 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay specifies the "CA" suffix (e.g., SMA5J7.5CA). Using SMA5J7.5AHE3/61 on AC or floating lines risks forward conduction and failure during negative excursions.
Does SMA5J7.5AHE3/61 require derating at elevated ambient temperatures?
Yes - the peak pulse power (PPPM) and current (IPPM) ratings of SMA5J7.5AHE3/61 must be derated above TA = 25 °C per Figure 2 in the datasheet. At 85 °C ambient, PPPM is reduced to approximately 350 W; at 125 °C, it falls to ~200 W. Thermal design must account for this using the specified RθJA = 80 °C/W.
What does the "HE3" suffix signify in SMA5J7.5AHE3/61?
The "HE3" suffix in SMA5J7.5AHE3/61 denotes RoHS-compliant construction with AEC-Q101 qualification. "H" indicates automotive qualification, "E3" confirms RoHS compliance and commercial-grade reliability; the "/61" denotes 7-inch tape-and-reel packaging with 1800 units per reel.
Can SMA5J7.5AHE3/61 be used in place of SMAJ7.5AHE3?
No - SMA5J7.5AHE3/61 and SMAJ7.5AHE3 differ in power rating: SMA5J is rated for 500 W PPPM, while SMAJ is rated for 400 W. Their VWM, VBR, and VC are closely matched, but substituting without verifying surge energy margins may result in premature failure under IEC 61000-4-5 Level 4 testing.
SMA5J7.5AHE3/61 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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 38.8A
- 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)
SMA5J7.5AHE3/61 FAQ
1.How can I place an order for SMA5J7.5AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.5AHE3/61 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 SMA5J7.5AHE3/61 reliable?
The price and inventory of SMA5J7.5AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J7.5AHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J7.5AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.5AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.5AHE3/61?
SMA5J7.5AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.5AHE3/61 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 SMA5J7.5AHE3/61?
For technical support, including SMA5J7.5AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.5AHE3/61 requirements.
6.How does Aetrix verify that SMA5J7.5AHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J7.5AHE3/61 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 SMA5J7.5AHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J7.5AHE3/61?
All SMA5J7.5AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.5AHE3/61, 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 SMA5J7.5AHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J7.5AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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