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Vishay General Semiconductor - Diodes Division SMA5J16HE3/61
- Part No.:
- SMA5J16HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16HE3/61.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,427
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Product details
Overview
SMA5J16HE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on power and signal lines. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown range (VBR), 26.0 V clamping voltage (VC) at 19.2 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used to protect automotive ECUs, industrial sensor interfaces, and DC power rails against ESD and load dump transients.
For engineers reviewing the SMA5J16HE3/61 datasheet, SMA5J16HE3/61 pinout, SMA5J16HE3/61 application, or SMA5J16HE3/61 equivalent, key selection criteria include its AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, bi-directional capability not applicable (uni-directional only), and RoHS-compliant HE3 suffix indicating JESD 201 Class 2 whisker test compliance.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches into low-impedance conduction to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage and long-term reliability under repetitive surge stress.
Designed for surface-mount automated assembly, the device meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), uses matte tin-plated leads solderable per J-STD-002, and delivers consistent clamping performance across -55 °C to +150 °C operating junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - guaranteed avalanche initiation range defining turn-on threshold |
| VC @ IPPM | 26.0 V at 19.2 A - clamped voltage during 500 W 10/1000 µs surge, limiting stress on protected ICs |
| PPPM | 500 W - peak pulse power handling capacity under standardized surge waveform |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine), relevant for fault-current scenarios |
| TJ max | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| RθJA | 80 °C/W - thermal resistance junction-to-ambient, guiding PCB copper pad sizing for thermal management |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, low-profile plastic case with molded UL 94 V-0 compound; cathode indicated by band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return node; forms shunt path during overvoltage events |
| Cathode | Reverse-biased terminal / clamping reference | Connected to protected line (e.g., 12 V rail); avalanche conduction initiates here when VWM exceeded |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per stress test plan |
| Glass passivated junction | Ensures stable leakage current (<1.0 µA at VWM) and immunity to moisture-induced degradation |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive ICs |
| MSL Level 1, 260 °C peak reflow | Enables compatibility with standard lead-free SMT assembly without pre-baking or special handling |
| HE3 suffix | Denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - required for automotive production |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) and body control modules against ISO 7637-2 load dump pulses and jump-start surges. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground, clamping transients within 1 ns response time. Use Value: Limits voltage to ≤26.0 V during 500 W surges, preventing latch-up or gate oxide damage in downstream PMICs and microcontrollers. | Use Scenario: Safeguarding analog input pins of industrial PLC analog I/O modules connected to 4–20 mA current loops exposed to field wiring transients. IC Role / Device Role / Timing Role: Bidirectional-capable not applicable; this unidirectional device protects grounded-signal paths where polarity is fixed. Use Value: Maintains <1.0 µA leakage at 16 V, preserving measurement accuracy while clamping induced spikes up to 19.2 A. |
| DC-DC Converter Input Protection | Consumer Power Adapter Output Protection |
Use Scenario: Front-end protection for buck converter inputs in telecom power supplies subjected to lightning-induced surges on AC/DC adapter outputs. IC Role / Device Role / Timing Role: Primary surge clamp on input capacitor node, absorbing energy before it reaches switching controller IC. Use Value: Withstands 40 A single-half-sine forward surge (IFSM), covering fault conditions like output short-circuit with input still energized. | Use Scenario: Output-side transient suppression on USB-C PD adapters to meet IEC 61000-4-5 surge immunity requirements. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBUS and GND, leveraging cathode marking for correct orientation in compact layouts. Use Value: Delivers 500 W peak power rating in DO-214AC footprint - optimal power density for space-constrained adapter PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J16A-E3/61 | Same electrical specs (VWM, VBR, VC, PPPM), but E3 suffix indicates commercial grade (not AEC-Q101 qualified) and JESD 201 Class 1A whisker test | Not suitable for automotive production; acceptable for industrial or consumer prototypes where qualification is not mandated | Select SMA5J16A-E3/61 only if AEC-Q101 is unnecessary and cost sensitivity outweighs long-term reliability requirements |
| SMCJ16AHE3/61 | Same VWM and VBR, but higher PPPM = 1500 W and larger DO-214AB (SMC) package; clamping voltage 28.2 V at 53.5 A | Used where higher surge energy (e.g., ISO 16750-2 pulse 5a) must be absorbed without derating | Choose SMCJ16AHE3/61 when board space allows larger package and system-level testing requires >500 W surge margin |
Compared with SMA5J16A-E3/61 and SMCJ16AHE3/61, the SMA5J16HE3/61 uniquely balances AEC-Q101 compliance, 500 W surge capability, and DO-214AC footprint - making it the preferred choice for volume automotive electronics where qualification, thermal performance, and layout density are jointly constrained.
Availability
SMA5J16HE3/61 is available at Aetrix Electronics and suitable for automotive ECU designs, industrial sensor interface protection, and DC-DC converter input safeguarding requiring stable component supply across multi-year production cycles.
Supply support for SMA5J16HE3/61 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 power distribution, industrial automation, and telecom infrastructure where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of SMA5J16HE3/61 and how is it measured?
The clamping voltage (VC) of SMA5J16HE3/61 is 26.0 V, measured at 19.2 A peak pulse current using the standardized 10/1000 µs double-exponential surge waveform per ANSI/IEEE C62.35. This value represents the maximum voltage seen across the device during a 500 W transient event and is critical for ensuring downstream components remain within their absolute maximum ratings. The SMA5J16HE3/61 achieves this clamping performance due to its low incremental surge resistance and optimized silicon junction design.
Is SMA5J16HE3/61 suitable for bi-directional transient protection?
No, SMA5J16HE3/61 is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA"). It conducts only in reverse bias above VBR and blocks forward current up to 3.5 V at 25 A. For bi-directional protection, a part such as SMA5J16CAHE3/61 would be required. The SMA5J16HE3/61 must be oriented with its cathode band toward the protected line and anode to ground to function correctly - incorrect placement will result in no clamping action during positive transients.
What does the "HE3" suffix mean in SMA5J16HE3/61?
The "HE3" suffix in SMA5J16HE3/61 denotes two key qualifications: "H" indicates AEC-Q101 qualification for automotive applications, and "E3" specifies RoHS compliance plus JESD 201 Class 2 whisker resistance. This distinguishes it from the "E3"-only variant (e.g., SMA5J16A-E3/61), which lacks AEC-Q101 validation. The HE3 marking confirms the SMA5J16HE3/61 has passed extended stress tests including temperature cycling, high-temperature reverse bias, and surge endurance - essential for under-hood automotive deployment.
What is the maximum operating temperature for SMA5J16HE3/61?
The maximum operating junction temperature (TJ max) for SMA5J16HE3/61 is +150 °C, with storage temperature matching this range (–55 °C to +150 °C). This rating enables reliable operation in high-temperature environments such as engine compartments or enclosed industrial enclosures. Thermal design must account for RθJA = 80 °C/W; for example, at 500 W dissipation (theoretical worst-case), even minimal ambient rise would exceed limits - confirming the device is intended for short-duration, non-repetitive surges, not continuous power dissipation. The SMA5J16HE3/61 is rated for these conditions per its thermal characterization curves.
How does SMA5J16HE3/61 compare to SMA5J16A-E3/61 in terms of reliability?
SMA5J16HE3/61 provides higher reliability than SMA5J16A-E3/61 due to its AEC-Q101 qualification, which includes accelerated life testing (HTOL), temperature cycling (TC), and surge endurance validation beyond standard JEDEC requirements. The HE3 suffix also mandates JESD 201 Class 2 whisker resistance, whereas E3-only parts meet only Class 1A. These differences make SMA5J16HE3/61 suitable for automotive production and mission-critical industrial systems, while SMA5J16A-E3/61 is limited to commercial-grade applications where long-term field reliability under thermal and mechanical stress is less stringent. Both share identical electrical parameters, but only SMA5J16HE3/61 carries full automotive qualification evidence.
SMA5J16HE3/61 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 17.4A
- 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)
SMA5J16HE3/61 FAQ
1.How can I place an order for SMA5J16HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16HE3/61 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 SMA5J16HE3/61 reliable?
The price and inventory of SMA5J16HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J16HE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J16HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16HE3/61?
SMA5J16HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16HE3/61 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 SMA5J16HE3/61?
For technical support, including SMA5J16HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16HE3/61 requirements.
6.How does Aetrix verify that SMA5J16HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J16HE3/61 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 SMA5J16HE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J16HE3/61?
All SMA5J16HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16HE3/61, 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 SMA5J16HE3/61 part is unused and in its original packaging.
Return procedure for SMA5J16HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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