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Vishay General Semiconductor - Diodes Division SMA5J16CA-E3/61
- Part No.:
- SMA5J16CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16CA-E3/61.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA5J16CA-E3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal lines. It features a 16 V standoff voltage (VWM), 26.0 V maximum clamping voltage (VC) at 19.2 A peak pulse current (IPPM), and 500 W peak pulse power (10/1000 µs waveform), commonly deployed to protect automotive sensor interfaces and industrial I/O circuits against ESD and load dump transients.
For engineers reviewing the SMA5J16CA-E3/61 datasheet, SMA5J16CA-E3/61 pinout, SMA5J16CA-E3/61 application, or SMA5J16CA-E3/61 equivalent, key selection criteria include bidirectional clamping symmetry, low VC/VWM ratio (1.625), AEC-Q101 qualification readiness (via HE3 suffix variants), thermal resistance (RθJA = 80 °C/W), and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during overvoltage events, leveraging an avalanche breakdown junction to divert surge current away from protected circuitry. Its bidirectional structure enables symmetric suppression of both positive and negative transients without polarity sensitivity - critical for AC-coupled or floating signal paths.
It delivers 500 W peak pulse power handling under standardized 10/1000 µs waveform conditions, with clamping performance validated at TA = 25 °C on minimum recommended pad layout. Thermal derating follows Fig. 2 in the datasheet, maintaining safe operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before conduction begins; defines upper limit of normal signal swing. |
| VBR min/max | 17.8 V / 19.7 V - Breakdown voltage range at 1 mA test current; ensures reliable triggering above VWM. |
| VC @ IPPM | 26.0 V - Clamped voltage at 19.2 A peak pulse current; determines worst-case voltage seen by downstream ICs. |
| PPPM | 500 W - Peak pulse power rating (10/1000 µs); quantifies single-event surge energy absorption capability. |
| IPPM | 19.2 A - Peak pulse current corresponding to VC; used to size PCB traces and verify margin vs. system surge profiles. |
| TJ max | +150 °C - Maximum junction temperature; sets thermal design boundary for sustained or repetitive surge duty cycles. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance; informs heatsinking requirements when mounted on 0.2" × 0.2" Cu pads. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H), matte tin-plated leads, RoHS-compliant, MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction terminals | No functional distinction between terminals; identical clamping behavior in either direction - eliminates orientation concerns during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC, differential, or floating nodes without external polarity management or series components. |
| Low clamping ratio (VC/VWM = 1.625) | Minimizes overvoltage stress on protected ICs compared to alternatives with higher ratios (>1.8), improving system robustness. |
| 500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV surge) compliance when combined with appropriate series impedance in front-end filtering. |
| MSL Level 1 rating | Permits standard SMT reflow without moisture-sensitive handling - reduces manufacturing complexity and cost. |
| Glass-passivated junction | Enhances long-term reliability under thermal cycling and humidity exposure, critical for automotive and industrial deployments. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and jump-start transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal/power pins to shunt >100 V surges within nanoseconds. Use Value: Maintains VC ≤ 26.0 V during 19.2 A transients, preventing latch-up or gate oxide damage in connected microcontrollers and analog front-ends. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Primary transient suppressor at terminal block entry point, upstream of optocoupler or Schmitt trigger input stage. Use Value: Absorbs 500 W pulses without degradation, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity standards. |
| Telecom Line Interface Protection | Consumer Appliance Motor Control Board |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station backhaul equipment from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Secondary-level TVS on differential pair lines, coordinated with GDT or polymer PTC upstream. Use Value: Fast response (<1 ns) and symmetrical clamping preserve signal integrity while limiting voltage excursion to <26 V during 10/1000 µs events. |
Use Scenario: Protecting MCU GPIOs and gate drivers on washing machine or HVAC motor control boards from relay coil flyback and EMI coupling. IC Role / Device Role / Timing Role: Localized clamping device adjacent to MOSFET gate driver outputs and microcontroller I/O pins. Use Value: Withstands repetitive 40 A IFSM-equivalent surges (unidirectional reference) and maintains stable VBR over 1000+ surge events per JEDEC JESD22-A114. |
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 | Unidirectional variant; cathode band marked; forward voltage drop (~3.5 V @ 25 A) present in one direction. | Requires correct polarity alignment; unsuitable for AC or floating nodes where bidirectional clamping is mandatory. | Select SMA5J16A-E3/61 only when protecting DC-biased lines with known polarity and where forward conduction must be blocked. |
| SMCJ16CA-E3/73 | Same VWM/VC specs but in larger SMC (DO-214AB) package; 1500 W PPPM, lower RθJA (40 °C/W), higher IPPM (62.7 A). | Better suited for high-energy surges (e.g., 12 V battery line protection); requires larger PCB area and different pad layout. | Choose SMCJ16CA-E3/73 when system-level surge testing exceeds 500 W or thermal constraints demand lower junction rise per watt. |
Compared with SMA5J16CA-E3/61, SMA5J16A-E3/61 offers unidirectional blocking but lacks polarity-agnostic protection, while SMCJ16CA-E3/73 provides 3× higher surge capacity at the cost of footprint and assembly compatibility - making SMA5J16CA-E3/61 optimal for space-constrained, bidirectional, mid-energy applications.
Availability
SMA5J16CA-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line protection, and consumer appliance motor control boards requiring stable component supply and consistent surge performance across production batches.
Supply support for SMA5J16CA-E3/61 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-grade qualification.
The SMA5JxxCA family is engineered for high-power-density transient suppression in space-constrained, high-reliability environments - targeting automotive, industrial, and telecom applications where bidirectional clamping and AEC-Q101 readiness are essential.
FAQ
What is the clamping voltage of the SMA5J16CA-E3/61 under maximum rated surge current?
The SMA5J16CA-E3/61 exhibits a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 19.2 A under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C on the recommended 0.2" × 0.2" copper pad layout and defines the upper voltage limit imposed on protected circuitry during transient events. The SMA5J16CA-E3/61 maintains this clamping performance consistently across its operational temperature range when properly mounted.
Is the SMA5J16CA-E3/61 suitable for automotive applications?
Yes - the SMA5J16CA-E3/61 is RoHS-compliant and compatible with AEC-Q101 qualified variants (e.g., SMA5J16CAHE3_A/H). While the -E3/61 suffix itself denotes commercial-grade qualification, its construction - including glass-passivated junction, MSL Level 1 rating, and -55 °C to +150 °C operating range - meets foundational automotive environmental requirements. System-level AEC-Q101 validation requires the HE3 or HM3 suffix, but the SMA5J16CA-E3/61 serves as a direct form-fit replacement in non-certified automotive subsystems such as body control modules and sensor interfaces.
How does the bidirectional design of the SMA5J16CA-E3/61 affect PCB layout?
The bidirectional design of the SMA5J16CA-E3/61 eliminates polarity marking and orientation dependency - no cathode band is present, and both terminals behave identically under positive or negative transients. This simplifies PCB layout by removing the need for silkscreen polarity indicators, reducing placement errors during automated assembly, and enabling use on differential or AC-coupled signal paths without additional circuitry. The SMA5J16CA-E3/61 can be placed in either direction across protected nodes without functional impact.
What is the thermal resistance of the SMA5J16CA-E3/61, and how does it influence layout?
The SMA5J16CA-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. This value assumes minimal copper area and guides thermal design: doubling pad size or adding thermal vias can reduce RθJA by ~15–25 %. For repetitive surge duty, thermal management directly affects maximum allowable event frequency - exceeding TJ = 150 °C risks parametric shift or failure. Layout must therefore follow Vishay's recommended pad dimensions to achieve rated 500 W performance.
Can the SMA5J16CA-E3/61 replace a unidirectional TVS like SMA5J16A-E3/61 in existing designs?
No - the SMA5J16CA-E3/61 cannot be a direct drop-in replacement for SMA5J16A-E3/61 without verifying circuit topology. While both share identical VWM, VBR, and VC ratings, the unidirectional SMA5J16A-E3/61 blocks forward current and conducts only in reverse, whereas the bidirectional SMA5J16CA-E3/61 conducts in both directions. Substituting into a DC-biased line with forward current path may cause unintended conduction. The SMA5J16CA-E3/61 is only interchangeable where bidirectional clamping is functionally required or already accommodated in the schematic.
SMA5J16CA-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 19.2A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J16CA-E3/61 FAQ
1.How can I place an order for SMA5J16CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16CA-E3/61 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 SMA5J16CA-E3/61 reliable?
The price and inventory of SMA5J16CA-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J16CA-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J16CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16CA-E3/61?
SMA5J16CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16CA-E3/61 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 SMA5J16CA-E3/61?
For technical support, including SMA5J16CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16CA-E3/61 requirements.
6.How does Aetrix verify that SMA5J16CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J16CA-E3/61 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 SMA5J16CA-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J16CA-E3/61?
All SMA5J16CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16CA-E3/61, 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 SMA5J16CA-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J16CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J16CA-E3/61 Tags
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