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Vishay General Semiconductor - Diodes Division SMA5J16CAHE3/5A
- Part No.:
- SMA5J16CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16CAHE3/5A.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,204
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Product details
Overview
SMA5J16CAHE3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 500 W peak pulse power (PPPM), and clamps transients to ≤26.0 V at 19.2 A IPPM - used in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the SMA5J16CAHE3/5A datasheet, SMA5J16CAHE3/5A pinout, SMA5J16CAHE3/5A application, or SMA5J16CAHE3/5A equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 500 W surge rating with 10/1000 µs waveform, low thermal resistance (RθJL = 25 °C/W), and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during transient events, leveraging avalanche breakdown across both polarities due to its symmetrical bidirectional structure. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1.0 µA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C.
The SMA5J16CAHE3/5A delivers consistent clamping performance under repetitive surges when mounted per recommended pad layout, with thermal resistance RθJA = 80 °C/W enabling reliable operation up to TJ = 150 °C. Its 500 W PPPM rating applies to unidirectional and bidirectional configurations alike, per ANSI/IEEE C62.35 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1 mA - guaranteed avalanche initiation range; ensures predictable turn-on during overvoltage events |
| VC (Clamping Voltage) | ≤26.0 V at IPPM = 19.2 A - peak voltage seen by protected circuit during 10/1000 µs surge; determines stress on downstream components |
| PPPM (Peak Pulse Power) | 500 W - maximum non-repetitive surge energy absorption capability; validates suitability for IEC 61000-4-5 Level 4 compliance |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - minimal standby current; preserves signal integrity and battery life in always-on systems |
| TJ max. | 150 °C - maximum junction temperature; enables use in under-hood automotive environments and industrial enclosures |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
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 compliant with J-STD-002 solderability and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No functional polarity - either terminal serves as anode or cathode depending on transient polarity; eliminates orientation errors in layout |
| Case (cathode band absent) | Non-marked package body | Confirms bidirectional construction; requires design verification that PCB trace symmetry matches device symmetry for balanced clamping |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management |
| AEC-Q101 qualification (HE3 suffix) | Validates robustness for automotive applications including engine control modules and ADAS sensor interfaces |
| 500 W peak pulse power | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) with appropriate series impedance |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard Pb-free reflow without baking, reducing manufacturing overhead |
| Glass-passivated junction | Ensures long-term VBR stability and low leakage drift across temperature and lifetime stress conditions |
Applications
| Automotive Sensor Protection | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential bus lines to clamp ±200 V transients within 1 ns. Use Value: Prevents latch-up or permanent damage to transceiver ICs while maintaining signal integrity up to 5 Mbps. |
Use Scenario: Shielding PLC digital input modules from inductive kickback when switching solenoids or relays. IC Role / Device Role / Timing Role: Primary surge shunt on 24 V DC input terminals, absorbing >500 W spikes without degradation. Use Value: Eliminates need for external RC snubbers and extends field service life of input circuitry in harsh factory environments. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Safeguarding Ethernet PHY front-end circuits against lightning-induced surges on PoE-powered switches. IC Role / Device Role / Timing Role: Secondary-level TVS on MDI pairs, coordinated with primary gas discharge tube (GDT) staging. Use Value: Limits let-through voltage to <26 V during 10/1000 µs surges, preserving PHY silicon rated for 3.3 V operation. |
Use Scenario: Adding robust ESD and surge resilience to USB 2.0 data lines in smart home hubs and docking stations. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp between D+ and D−, placed adjacent to connector. Use Value: Maintains signal rise time integrity (<10 pF typical junction capacitance) while surviving ±15 kV contact ESD per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J16CA-M3/5A | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification | Required for halogen-free BOM compliance in EU medical and industrial equipment | Select when regulatory compliance mandates halogen-free materials without sacrificing performance |
| SMA6J16CAHE3/5A | 600 W PPPM rating (vs. 500 W), same VWM/VBR/VC; larger die in identical SMA package | Better suited for higher-energy surge environments (e.g., 10/1000 µs 6 kV tests) | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and layout allows same footprint |
Compared with SMA5J16CAHE3/5A, the SMA5J16CA-M3/5A offers identical protection performance with halogen-free construction, while the SMA6J16CAHE3/5A provides 20 % higher surge power handling in the same footprint - enabling design margin extension without PCB revision.
Availability
SMA5J16CAHE3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, and telecom line conditioning requiring stable component supply across multi-year production cycles.
Supply support for SMA5J16CAHE3/5A 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The SMA5JxxCA family is engineered for high-power-density transient suppression in space-constrained SMT designs, targeting AEC-Q101-compliant automotive subsystems and ruggedized industrial controls where surge immunity and long-term parametric stability are critical.
FAQ
What is the clamping voltage of the SMA5J16CAHE3/5A at its rated peak pulse current?
The SMA5J16CAHE3/5A clamps to a maximum of 26.0 V at its specified peak pulse current (IPPM) of 19.2 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and represents the worst-case voltage imposed on protected circuitry during standardized surge events. The SMA5J16CAHE3/5A maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C) when mounted per Vishay's recommended pad layout.
Is the SMA5J16CAHE3/5A suitable for automotive applications?
Yes, the SMA5J16CAHE3/5A is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code. It has undergone stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 requirements. The SMA5J16CAHE3/5A is deployed in automotive sensor units, body control modules, and infotainment interfaces where protection against load dump and ISO 7637-2 transients is required.
How does the bidirectional configuration of the SMA5J16CAHE3/5A affect PCB layout?
The SMA5J16CAHE3/5A has no polarity marking and functions identically in either orientation, simplifying placement and eliminating risk of reverse installation. However, symmetric PCB trace routing is essential to ensure equal inductance on both paths - asymmetry can cause unequal clamping response during fast-rising transients. The SMA5J16CAHE3/5A must be placed as close as possible to the protected interface with minimal loop area to preserve its sub-nanosecond response.
What is the maximum operating temperature for the SMA5J16CAHE3/5A?
The SMA5J16CAHE3/5A has a maximum junction temperature (TJ max.) of +150 °C, verified per its thermal characterization data. This rating allows reliable operation in under-hood automotive environments and sealed industrial enclosures. Derating curves in the datasheet show that at 100 °C ambient, the device retains >60 % of its 500 W PPPM rating when mounted on 5.0 mm × 5.0 mm copper pads - a condition directly applicable to the SMA5J16CAHE3/5A.
Does the SMA5J16CAHE3/5A require a heatsink for standard operation?
No, the SMA5J16CAHE3/5A is designed for self-cooled operation using PCB copper as the primary heat path. Its RθJL (junction-to-lead) is 25 °C/W, meaning it efficiently transfers surge energy into the board's copper planes. A dedicated heatsink is unnecessary unless operating continuously near TJ max. under sustained high-power transients - a condition outside the intended use case of the SMA5J16CAHE3/5A, which is rated for non-repetitive pulses.
SMA5J16CAHE3/5A 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:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J16CAHE3/5A FAQ
1.How can I place an order for SMA5J16CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16CAHE3/5A 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 SMA5J16CAHE3/5A reliable?
The price and inventory of SMA5J16CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J16CAHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J16CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16CAHE3/5A?
SMA5J16CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16CAHE3/5A 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 SMA5J16CAHE3/5A?
For technical support, including SMA5J16CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16CAHE3/5A requirements.
6.How does Aetrix verify that SMA5J16CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J16CAHE3/5A 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 SMA5J16CAHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J16CAHE3/5A?
All SMA5J16CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16CAHE3/5A, 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 SMA5J16CAHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J16CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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