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Vishay General Semiconductor - Diodes Division SMAJ16CA-001HE3/61
- Part No.:
- SMAJ16CA-001HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ16CA-001HE3/61.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMAJ16CA-001HE3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal and power lines. It features a 16 V standoff voltage (VWM), 26.0 V maximum clamping voltage (VC) at 15.4 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 μs waveform), making it suitable for protecting MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the SMAJ16CA-001HE3/61 datasheet, SMAJ16CA-001HE3/61 pinout, SMAJ16CA-001HE3/61 application, or SMAJ16CA-001HE3/61 equivalent, key selection considerations include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.625), MSL Level 1 moisture sensitivity, and compatibility with automated SMT assembly on standard PCB copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while the 120 °C/W junction-to-ambient thermal resistance requires careful PCB copper pad design per Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) layout for full 400 W rating.
The device delivers 15.4 A peak pulse current under standardized 10/1000 μs surge conditions, with clamping voltage tightly controlled at 26.0 V - critical for safeguarding 16 V-rated logic and analog inputs. Its 0.089 %/°C temperature coefficient of VBR ensures predictable voltage threshold shift across the -55 °C to +150 °C operating range, supporting robust performance in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse voltage before conduction; defines upper limit of normal operating range. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1.0 mA test current - Ensures reliable triggering above system operating voltage with margin. |
| VC (Clamping Voltage) | 26.0 V at 15.4 A IPPM - Limits transient voltage seen by protected circuitry during surge events. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 μs) - Sustains high-energy transients common in automotive load-dump and inductive switching. |
| IPPM (Peak Pulse Current) | 15.4 A - Quantifies surge current-handling capacity; validated with derating above 25 °C ambient. |
| TJmax | +150 °C - Enables use in high-temperature locations such as engine control units and power converters. |
| Package | SMA (DO-214AC) - Low-profile SMT package compatible with J-STD-020 MSL Level 1 reflow profiles (260 °C peak). |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.50 mm × 2.79 mm × 2.29 mm (L × W × H); cathode/anode terminals are symmetrical and non-polarized.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bidirectional) | Surge current path | Both terminals function identically; conducts equally in either direction when VWM exceeded - eliminates orientation concerns during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors - supports PPAP and long-term reliability requirements. |
| 400 W peak pulse power (10/1000 μs) | Handles high-energy transients from ISO 7637-2 Pulse 1/2a/5a without degradation - exceeds typical CAN/LIN bus protection needs. |
| Low clamping ratio (VC/VWM = 1.625) | Minimizes overvoltage stress on downstream 16 V-rated components - improves system-level ESD and surge immunity margin. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT processes without baking or special handling - reduces manufacturing complexity. |
| Glass passivated junction | Ensures stable leakage (<1.0 μA) and repeatable breakdown characteristics over temperature and lifetime - critical for precision analog protection. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to ISO 16750-2 load dump and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to shunt transients before reaching ADC front-end or signal conditioning op-amps. Use Value: Maintains signal integrity by limiting transient voltage to ≤26.0 V, preventing latch-up or damage to 16 V-tolerant sensor signal chains. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers subjected to inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Fast-response TVS placed across input terminals to absorb repetitive 400 W surges without degradation, complementing upstream fusing. Use Value: Extends channel lifetime by suppressing >1 kV transients within 1 ns response time, reducing field failures in factory automation systems. |
| Consumer USB Interface Protection | Telecom Line Card Surge Suppression |
|
Use Scenario: Guarding USB 2.0 D+/D− lines in portable medical devices against ESD and cable discharge events per IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp integrated into USB connector footprint to minimize signal distortion while meeting Class 4 ESD immunity. Use Value: Achieves <1.0 μA leakage at 16 V, preserving signal rise/fall times and ensuring USB 480 Mbps data integrity under repeated ESD stress. |
Use Scenario: Front-end protection for Ethernet PHY interfaces in telecom access equipment exposed to lightning-induced surges on PoE-enabled RJ45 ports. IC Role / Device Role / Timing Role: Primary clamping device in multi-stage protection scheme, absorbing bulk surge energy before secondary GDT or MOV stages. Use Value: Withstands 15.4 A peak current at 26.0 V clamping, reducing let-through energy to downstream PHY ICs rated for ≤30 V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16CA-E3/61 | RoHS-compliant commercial grade; lacks AEC-Q101 qualification and halogen-free certification. | Approved for industrial and consumer applications but not automotive production. | Select when AEC-Q101 is not required and cost optimization is prioritized over automotive qualification. |
| SMAJ16CAHM3/61 | Halogen-free, RoHS-compliant, and AEC-Q101 qualified - identical electrical specs but different material compliance. | Meets stricter environmental mandates (e.g., EU automotive OEM halogen bans) without sacrificing performance. | Choose for Tier 1 automotive programs requiring halogen-free bill-of-materials and full PPAP documentation. |
Compared with SMAJ16CA-001HE3/61, the E3 variant offers lower cost for non-automotive use, while the HM3 variant adds halogen-free compliance for stringent OEM requirements - all three share identical VWM, VC, and IPPM, enabling direct substitution where qualification scope permits.
Availability
SMAJ16CA-001HE3/61 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, USB-powered medical devices, and telecom line cards requiring stable component supply with AEC-Q101 assurance and traceable sourcing.
Supply support for SMAJ16CA-001HE3/61 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 efficiency, and automotive-grade validation.
The SMAJ series is engineered specifically for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping performance and long-term stability are mandatory.
FAQ
What is the clamping voltage of SMAJ16CA-001HE3/61 at its rated peak pulse current?
The SMAJ16CA-001HE3/61 exhibits a maximum clamping voltage (VC) of 26.0 V when subjected to its rated 15.4 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and guarantees that protected circuits will not experience voltages exceeding 26.0 V during defined surge events - a critical parameter for safeguarding 16 V-rated ICs and interfaces in the SMAJ16CA-001HE3/61 application space.
Is SMAJ16CA-001HE3/61 suitable for automotive applications?
Yes, SMAJ16CA-001HE3/61 is AEC-Q101 qualified and explicitly designated for automotive use, as confirmed by Vishay's ordering code suffix "HE3" (RoHS-compliant + AEC-Q101). It meets requirements for under-hood and chassis-mounted modules, including operation from -55 °C to +150 °C junction temperature and resistance to mechanical shock, vibration, and humidity cycling - making SMAJ16CA-001HE3/61 appropriate for engine control units, ADAS sensors, and body electronics.
How does the bidirectional nature of SMAJ16CA-001HE3/61 affect its PCB layout?
The bidirectional construction of SMAJ16CA-001HE3/61 eliminates polarity constraints: both terminals are functionally identical, and no cathode band marking is present. This allows unrestricted orientation during automated placement and simplifies PCB layout - no silkscreen polarity indicators or asymmetric trace routing are needed. Engineers can place SMAJ16CA-001HE3/61 symmetrically across differential pairs or AC-coupled lines without risk of misorientation, reducing assembly errors and design iteration cycles.
What is the thermal resistance of SMAJ16CA-001HE3/61, and how does it impact power derating?
SMAJ16CA-001HE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on Vishay's recommended 0.2" × 0.2" copper pads. This value dictates strict derating above 25 °C ambient: for example, at 85 °C board temperature, its peak pulse power must be reduced to ~240 W to maintain safe junction temperatures. Proper copper pour design is essential to sustain the full 400 W rating - undersized pads cause premature thermal failure during repetitive surge events in the SMAJ16CA-001HE3/61 application.
Does SMAJ16CA-001HE3/61 meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, SMAJ16CA-001HE3/61 is rated MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C - fully compatible with standard lead-free soldering profiles. No dry-packaging, baking, or special handling is required prior to assembly. This MSL Level 1 classification confirms robustness against popcorning and intermetallic delamination during reflow, supporting high-yield SMT manufacturing for SMAJ16CA-001HE3/61 in volume production environments.
SMAJ16CA-001HE3/61 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 15.4A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ16CA-001HE3/61 FAQ
1.How can I place an order for SMAJ16CA-001HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ16CA-001HE3/61 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 SMAJ16CA-001HE3/61 reliable?
The price and inventory of SMAJ16CA-001HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ16CA-001HE3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ16CA-001HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ16CA-001HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ16CA-001HE3/61?
SMAJ16CA-001HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ16CA-001HE3/61 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 SMAJ16CA-001HE3/61?
For technical support, including SMAJ16CA-001HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ16CA-001HE3/61 requirements.
6.How does Aetrix verify that SMAJ16CA-001HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ16CA-001HE3/61 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 SMAJ16CA-001HE3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ16CA-001HE3/61?
All SMAJ16CA-001HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ16CA-001HE3/61, 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 SMAJ16CA-001HE3/61 part is unused and in its original packaging.
Return procedure for SMAJ16CA-001HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ16CA-001HE3/61 Tags
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