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Vishay General Semiconductor - Diodes Division SMAJ60AHE3/5A
- Part No.:
- SMAJ60AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60AHE3/5A.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,007
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Product details
Overview
SMAJ60AHE3/5A from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 60 V stand-off voltage (VWM), 66.7–73.7 V breakdown voltage (VBR) at 1 mA, 96.8 V maximum clamping voltage (VC) at 4.1 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMAJ60AHE3/5A datasheet, SMAJ60AHE3/5A pinout, SMAJ60AHE3/5A application, or SMAJ60AHE3/5A equivalent, this device delivers AEC-Q101 qualification, low incremental surge resistance, fast response time (<1 ps), and MSL Level 1 moisture sensitivity - critical for high-reliability board-level ESD and lightning surge protection in production-grade embedded systems.
Technical Context
This unidirectional TVS operates as a voltage-clamping overvoltage protector: when reverse voltage exceeds VWM = 60 V, it avalanches to limit transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 μA at VWM), while thermal resistance RθJA = 120 °C/W supports operation up to TJ = 150 °C.
The device complies with ANSI/IEEE C62.35 for surge suppression and meets UL 497B recognition (QVGQ2). Its SMA package enables automated placement and soldering per J-STD-002/JESD 22-B102, with matte tin-plated leads and RoHS-compliant, AEC-Q101-qualified construction (HE3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 60 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working range. |
| VBR (Breakdown Voltage) | 66.7–73.7 V at IT = 1 mA - Confirmed avalanche onset range; ensures reliable triggering above nominal rail. |
| VC (Clamping Voltage) | 96.8 V at IPPM = 4.1 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 400 W (≤78 V), 300 W (>78 V) - Energy-handling capacity under standardized surge waveform; defines single-event robustness. |
| IFSM (Surge Current) | 40 A (8.3 ms half-sine) - Forward surge rating for unidirectional types; validates resilience to inrush or fault currents. |
| TJmax | 150 °C - Maximum junction temperature; sets thermal derating boundary for PCB layout and ambient design. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; guides heatsinking requirements. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with cathode band marking. Dimensions: 4.50 mm × 2.79 mm × 2.29 mm (L × W × H); compliant with JEDEC DO-214AC outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to protected line's low-side or ground reference; completes clamping loop during transient events. |
| Cathode | Reverse-biased terminal / Clamping node | Connected to protected line (e.g., +12 V rail); avalanche conduction occurs here when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements - enables use in engine control, ADAS, and infotainment without requalification. |
| 400 W peak pulse power (10/1000 μs) | Handles typical ISO 7637-2 Pulse 1/2a/5a surges in 12 V vehicle systems without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage margin between breakdown and clamping - reduces risk of downstream IC latch-up or damage. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without pre-baking - simplifies manufacturing and reduces yield loss. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 μA) across temperature and lifetime - critical for long-term reliability. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs of body control modules (BCM) against load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and DC-DC input, absorbing >400 W surges within nanoseconds. Use Value: Limits transient voltage to ≤96.8 V, preventing damage to LDOs and microcontrollers rated for 36 V absolute max. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA current loops) of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Reverse-biased TVS on signal line to ground, triggered only during ESD or inductive kick events. Use Value: Maintains <1.0 μA leakage at 60 V, avoiding offset errors in precision current sourcing circuits. |
| Consumer Device USB Port Protection | Telecom Line Card Surge Suppression |
|
Use Scenario: Safeguarding VBUS line in USB-C power delivery circuits from hot-plug transients and ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS in series with overcurrent protection, clamping fast-rising spikes before they reach USB controller. Use Value: Responds in <1 ps to 8 kV contact ESD (IEC 61000-4-2), limiting voltage overshoot to safe levels for USB-PD PHY. |
Use Scenario: Front-end protection of Ethernet PHY interfaces in DSLAM line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping element on differential pair, coordinated with gas discharge tube (GDT) for staged protection. Use Value: Withstands 300 W surges above 78 V, enabling coordination with secondary protectors without premature failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60A-E3/5A | No AEC-Q101 qualification; commercial-grade only; identical electrical specs and package. | Suitable for non-automotive industrial or consumer designs where automotive reliability testing is not required. | Select when cost sensitivity outweighs automotive qualification needs and full traceability is not mandated. |
| SMAJ60CAHE3/5A | Bidirectional variant; symmetric VBR (66.7–73.7 V) in both directions; same VC, PPPM, and package. | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where polarity reversal may occur. | Choose only if bidirectional clamping is essential; unidirectional SMAJ60AHE3/5A offers lower leakage and simpler biasing. |
Compared with SMAJ60A-E3/5A, the HE3 version adds AEC-Q101 qualification and extended traceability - critical for Tier 1 automotive programs; versus SMAJ60CAHE3/5A, the unidirectional configuration provides tighter leakage control and avoids unnecessary bidirectional conduction in DC rails.
Availability
SMAJ60AHE3/5A is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom line card surge suppression requiring stable component supply, full AEC-Q101 compliance, and long-term lifecycle support.
Supply support for SMAJ60AHE3/5A 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 performance.
The SMAJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where high-energy surge immunity and long-term stability are mandatory.
FAQ
What is the clamping voltage of SMAJ60AHE3/5A at its rated peak pulse current?
The SMAJ60AHE3/5A has a maximum clamping voltage (VC) of 96.8 V at a peak pulse current (IPPM) of 4.1 A under the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during standardized surge events - a key parameter for ensuring downstream ICs remain within their absolute maximum ratings. The SMAJ60AHE3/5A maintains this clamping performance across its qualified temperature range.
Is SMAJ60AHE3/5A suitable for automotive applications?
Yes, SMAJ60AHE3/5A is AEC-Q101 qualified, making it suitable for automotive applications including body electronics, infotainment, and powertrain subsystems. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101-qualified construction, validated for temperature cycling, humidity, mechanical shock, and surge endurance per the standard. Its 150 °C maximum junction temperature and MSL Level 1 rating further support reflow compatibility and under-hood reliability - all confirmed for the exact SMAJ60AHE3/5A part number.
How does the SMAJ60AHE3/5A differ from the SMAJ60CAHE3/5A?
The SMAJ60AHE3/5A is unidirectional, with cathode marking and clamping only in reverse bias, while SMAJ60CAHE3/5A is bidirectional - offering symmetrical clamping in both polarities. Electrically, both share identical VBR (66.7–73.7 V), VC (96.8 V), and PPPM (400 W), but SMAJ60AHE3/5A exhibits lower reverse leakage (<1.0 μA at 60 V) due to its single-junction design. Use SMAJ60AHE3/5A for DC rails; choose SMAJ60CAHE3/5A only when AC or polarity-agnostic protection is required.
What is the thermal resistance of SMAJ60AHE3/5A, and how does it affect PCB layout?
The SMAJ60AHE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's DO-214AC specification. To maintain TJ ≤ 150 °C under sustained 3.3 W power dissipation, designers must ensure adequate copper area and avoid excessive ambient temperatures - underscoring the need for verified thermal simulation or empirical validation in final SMAJ60AHE3/5A layouts.
Does SMAJ60AHE3/5A meet UL recognition standards?
Yes, SMAJ60AHE3/5A carries Underwriters Laboratory (UL) recognition under file E136766 for both unidirectional and bidirectional variants, complying with UL 497B for telecommunications protectors. This certification confirms its suitability for use in safety-critical surge protection circuits across consumer, industrial, and telecom equipment - validated for dielectric strength, flammability (UL 94 V-0 molding compound), and surge endurance. The UL mark applies specifically to the SMAJ60AHE3/5A construction per Vishay Document Number 88390.
SMAJ60AHE3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- Power - Peak Pulse:
- 400W
- 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)
SMAJ60AHE3/5A FAQ
1.How can I place an order for SMAJ60AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60AHE3/5A 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 SMAJ60AHE3/5A reliable?
The price and inventory of SMAJ60AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60AHE3/5A is usually 5 days.
3.What payment methods are accepted for SMAJ60AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60AHE3/5A?
SMAJ60AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60AHE3/5A 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 SMAJ60AHE3/5A?
For technical support, including SMAJ60AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60AHE3/5A requirements.
6.How does Aetrix verify that SMAJ60AHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMAJ60AHE3/5A 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 SMAJ60AHE3/5A meets industry standards.
7.What is the process for return or replacement of SMAJ60AHE3/5A?
All SMAJ60AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60AHE3/5A, 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 SMAJ60AHE3/5A part is unused and in its original packaging.
Return procedure for SMAJ60AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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