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Vishay General Semiconductor - Diodes Division SMA5J11CHE3/5A
- Part No.:
- SMA5J11CHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J11CHE3/5A.pdf
- Description:
- TVS DIODE 11VWM 20.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,558
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Product details
Overview
SMA5J11CHE3/5A from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection on signal and power lines. It features a 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 µs), <1.0 µA reverse leakage at VWM, and clamps to ≤18.2 V at 27.5 A peak surge current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J11CHE3/5A datasheet, SMA5J11CHE3/5A pinout, SMA5J11CHE3/5A application, or SMA5J11CHE3/5A equivalent, key selection criteria include its AEC-Q101 qualification, bi-directional symmetry, low clamping ratio (VC/VBR ≈ 1.42), RoHS-compliant HE3 suffix, and suitability for 12 V rail protection in harsh environments.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions per ANSI/IEEE C62.35. Its glass-passivated junction ensures stable breakdown behavior and fast response (<1 ns), while the DO-214AC package provides low thermal resistance (RθJA = 80 °C/W) and supports automated SMT placement.
The device is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 (260 °C reflow), and delivers 500 W transient suppression without degradation under repetitive 10/1000 µs surges when mounted on 5.0 mm × 5.0 mm copper pads - critical for automotive ECU and ADAS sensor line protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse voltage before clamping begins; matches nominal 12 V system rails. |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - Ensures reliable turn-on above normal operating voltage with tight tolerance. |
| VC @ IPPM | ≤18.2 V at 27.5 A - Limits downstream voltage stress during 500 W transients (10/1000 µs). |
| ID @ VWM | ≤1.0 µA - Negligible leakage current preserves signal integrity and battery life in always-on circuits. |
| PPPM | 500 W - Withstands ISO 7637-2 Pulse 1/2a/2b and IEC 61000-4-5 Level 3 surges. |
| TJ range | -55 °C to +150 °C - Fully qualified for under-hood automotive applications per AEC-Q101. |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case meeting UL 94 V-0; matte tin-plated leads; no polarity marking (bi-directional); footprint compatible with standard SMA land pattern (5.0 mm × 5.0 mm copper pads per terminal).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction - terminals interchangeable; conducts identically in either direction during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for safety-critical ECUs. |
| Glass passivated junction | Stable VBR tolerance and long-term parameter stability under thermal and humidity stress. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off in solenoid drivers). |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns - eliminates bake requirements. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in engine control modules. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning ICs. Use Value: Prevents latch-up or permanent damage to 12 V rail-connected sensors by limiting voltage to ≤18.2 V during 500 W surges. | Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation. IC Role / Device Role / Timing Role: Primary transient suppressor on 24 V DC input lines, positioned upstream of optocoupler or Schmitt-trigger interface ICs. Use Value: Maintains signal fidelity and prevents false triggering by clamping spikes within 1 ns while drawing <1 µA leakage at steady state. |
| Telecom Power Interface | Consumer USB Port Protection |
Use Scenario: Shielding PoE-powered Ethernet PHYs and DC-DC converters from lightning-induced surges on 48 V supply lines in outdoor telecom equipment. IC Role / Device Role / Timing Role: Secondary-level surge protector after gas discharge tube (GDT), providing precise low-voltage clamping near sensitive silicon. Use Value: Enables compact design with 500 W capability in SMA footprint - avoids need for larger DO-214AB or discrete MOV+TVS stacks. | Use Scenario: Hardening USB 2.0 data lines and VBUS against ESD and hot-plug transients in portable audio docks and smart home hubs. IC Role / Device Role / Timing Role: Bi-directional ESD clamp on differential D+/D- pair and unidirectional variant on VBUS (not applicable here - this part used for VBUS or shared rail). Use Value: Meets IEC 61000-4-2 ±15 kV contact discharge requirement with sub-1 ns response and no signal distortion due to low capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J11CA-E3/5A | Same electrical specs but commercial-grade (non-AEC-Q101); E3 suffix only - no whisker test class 2 or automotive qualification. | Limited to non-automotive industrial or consumer use where extended temperature reliability not required. | Select when cost sensitivity outweighs automotive qualification needs and full AEC-Q101 traceability is unnecessary. |
| SMCJ11CAHE3/5A | Higher 1500 W PPPM; same VWM/VBR; DO-214AB (SMC) package - 2.5× larger footprint and higher thermal mass. | Better suited for high-energy surge environments (e.g., AC mains input, heavy industrial motor drives) where 500 W is insufficient. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 3 and PCB space allows larger SMC package. |
Compared with SMA5J11CHE3/5A, the SMA5J11CA-E3/5A offers identical protection performance without automotive qualification, while the SMCJ11CAHE3/5A trades compact size for 3× higher surge capacity - enabling tiered design choices based on energy threat level and qualification scope.
Availability
SMA5J11CHE3/5A is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecommunications infrastructure requiring stable component supply with guaranteed AEC-Q101 compliance and RoHS/Halogen-Free assurance.
Supply support for SMA5J11CHE3/5A 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 optimization.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications - particularly targeting automotive, industrial, and telecom markets where AEC-Q101 validation and consistent clamping performance are mandatory.
FAQ
What does the 'HE3' suffix mean in SMA5J11CHE3/5A?
The 'HE3' suffix in SMA5J11CHE3/5A indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. The 'H' denotes automotive qualification, 'E3' confirms lead-free matte tin plating and compliance with JEDEC standards - distinguishing it from commercial-grade E3-only variants.
Is SMA5J11CHE3/5A bi-directional or uni-directional?
SMA5J11CHE3/5A is a bi-directional TVS diode, as confirmed by its 'CA' designation (SMA5J11CA) and absence of cathode band marking. Its electrical characteristics - including VBR, VC, and IPPM - apply identically in both polarities, making it ideal for AC-coupled or floating signal line protection.
What is the maximum clamping voltage of SMA5J11CHE3/5A at rated surge current?
The maximum clamping voltage (VC) of SMA5J11CHE3/5A is 18.2 V at its rated peak pulse current (IPPM) of 27.5 A, measured under standardized 10/1000 µs waveform conditions. This value ensures protected circuits remain below safe voltage thresholds during worst-case transients.
Does SMA5J11CHE3/5A require a heatsink for 500 W surge handling?
No, SMA5J11CHE3/5A does not require an external heatsink for single-event 500 W surge handling. Its DO-214AC package and specified RθJA of 80 °C/W assume mounting on 5.0 mm × 5.0 mm copper pads per terminal - sufficient for transient dissipation without sustained thermal buildup.
How does SMA5J11CHE3/5A differ from SMA5J11A (uni-directional)?
SMA5J11CHE3/5A is bi-directional with symmetrical characteristics and no polarity marking, whereas SMA5J11A is uni-directional, features a cathode band, and exhibits forward conduction behavior. Their VWM and VBR values differ slightly (11 V vs. 11 V stand-off, but 12.2–13.5 V breakdown applies to both), and SMA5J11A supports IFSM = 40 A surge in forward direction - a capability absent in the CA version.
SMA5J11CHE3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 20.1V
- Current - Peak Pulse (10/1000µs):
- 24.9A
- 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)
SMA5J11CHE3/5A FAQ
1.How can I place an order for SMA5J11CHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J11CHE3/5A 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 SMA5J11CHE3/5A reliable?
The price and inventory of SMA5J11CHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J11CHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J11CHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J11CHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J11CHE3/5A?
SMA5J11CHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J11CHE3/5A 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 SMA5J11CHE3/5A?
For technical support, including SMA5J11CHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J11CHE3/5A requirements.
6.How does Aetrix verify that SMA5J11CHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J11CHE3/5A 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 SMA5J11CHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J11CHE3/5A?
All SMA5J11CHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J11CHE3/5A, 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 SMA5J11CHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J11CHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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