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Vishay General Semiconductor - Diodes Division SMA5J11AHM3/H
- Part No.:
- SMA5J11AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J11AHM3/H.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,365
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Product details
Overview
SMA5J11AHM3/H from Vishay General Semiconductor is a unidirectional 500 W Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, featuring 12.2 V minimum breakdown voltage (VBR), 11 V maximum stand-off voltage (VWM), and 18.2 V clamping voltage (VC) at 27.5 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial power electronics.
For engineers reviewing the SMA5J11AHM3/H datasheet, SMA5J11AHM3/H pinout, SMA5J11AHM3/H application, or SMA5J11AHM3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 80 °C/W), MSL level 1 compliance, and halogen-free RoHS construction - all critical for automotive-grade surge protection design-in.
Technical Context
This device operates as a unidirectional avalanche diode with glass-passivated junction, optimized for fast response (<1 ns) to 10/1000 μs transients and low incremental surge resistance. Its clamping behavior is defined by VC = 18.2 V at IPPM = 27.5 A, with reverse leakage ≤1.0 μA at VWM = 11 V.
Designed for surface-mount placement on 5.0 mm × 5.0 mm copper pads, it supports junction temperatures from –55 °C to +150 °C and meets JESD201 Class 2 whisker resistance. The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101 qualified construction - validated per stress test conditions in the official Vishay specification document 88875.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 12.2 V - Ensures reliable avalanche conduction onset above 11 V system operating voltage |
| VWM | 11 V - Maximum continuous reverse voltage before significant leakage begins |
| VC @ IPPM | 18.2 V at 27.5 A - Clamped voltage during 500 W transient, protecting downstream 20 V-rated components |
| PPPM | 500 W - Peak pulse power handling capability with 10/1000 μs waveform |
| RθJA | 80 °C/W - Thermal resistance from junction to ambient, requiring ≥5 mm² copper pad per terminal for derating |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| MSL Level | Level 1 (260 °C peak reflow) - Supports standard lead-free SMT assembly without preconditioning |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads. Cathode indicated by banded end; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; must handle 40 A non-repetitive surge (IFSM) |
| Cathode | Avalanche conduction node / protected line connection | Connected to line being protected (e.g., 12 V rail); clamps transients to ≤18.2 V when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive OEM material compliance requirements and eliminates corrosive halogen emissions during soldering |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive ICs |
| MSL Level 1 rating | Enables direct placement into high-temperature lead-free reflow profiles without baking or dry-pack handling |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in junction boxes and fuse panels from load-dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamp absorbing up to 500 W surges while holding line voltage ≤18.2 V. Use Value: Prevents latch-up or destruction of PMICs and microcontrollers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA, 0–5 V) of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Fast-response transient suppressor placed at connector interface to shunt ESD and cable discharge events. Use Value: Maintains signal integrity by limiting clamping voltage to 18.2 V, well below typical ADC input damage thresholds. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters for laptops and monitors subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated (11 V) TVS that remains inactive during normal 12 V operation but activates within nanoseconds during transients. Use Value: Eliminates need for additional series impedance or timing circuits due to sub-1 ns response and low leakage (≤1 μA). |
Use Scenario: Protecting -48 V DC telecom power feeds from induced surges on long outdoor cable runs. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground, suppressing positive-going transients on negative rails. Use Value: Enables robust field deployment with 150 °C junction rating and MSL Level 1 compatibility for automated manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J11AHE3/H | Same electrical specs, but RoHS-compliant without halogen-free certification; no JESD201 Class 2 whisker test validation | Approved for commercial-grade automotive modules where halogen content is unrestricted | Select when AEC-Q101 qualification is required but halogen-free mandate does not apply |
| SMA6J11A-H | 600 W PPPM, higher IPPM (30.5 A), same VWM/VBR; larger SMA package variant with improved thermal dissipation | Suitable for higher-energy surge environments (e.g., heavy-duty vehicle alternator regulation) | Choose when system-level testing requires >500 W surge margin or extended thermal endurance |
Compared with SMA5J11AHM3/H, SMA5J11AHE3/H offers identical clamping performance but lacks halogen-free assurance, while SMA6J11A-H provides 20 % higher pulse power at the cost of larger footprint and different thermal profile - both require layout review for mechanical fit and thermal pad optimization.
Availability
SMA5J11AHM3/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, consumer adapter protection, and telecom DC feed applications requiring stable component supply, AEC-Q101 qualification, and halogen-free compliance.
Supply support for SMA5J11AHM3/H 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, and protection devices with emphasis on reliability, automotive qualification, and high-power density packaging.
The SMA5J series was engineered specifically for high-energy transient suppression in space-constrained automotive and industrial systems, combining 500 W pulse capability with MSL Level 1 reflow compatibility and AEC-Q101 validation.
FAQ
What is the clamping voltage of the SMA5J11AHM3/H under maximum rated surge current?
The SMA5J11AHM3/H exhibits a maximum clamping voltage (VC) of 18.2 V when subjected to its rated peak pulse current (IPPM) of 27.5 A using the standardized 10/1000 μs waveform. This value is measured at TA = 25 °C with devices mounted on 5.0 mm × 5.0 mm copper pads per terminal, as specified in Vishay document 88875. The SMA5J11AHM3/H maintains this clamping performance across its qualified operating temperature range.
Is the SMA5J11AHM3/H qualified for automotive applications?
Yes, the SMA5J11AHM3/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's official specification sheet (document 88875). This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - making the SMA5J11AHM3/H suitable for use in engine control units, body electronics, and other automotive subsystems requiring certified reliability.
What does the "HM3" suffix indicate for the SMA5J11AHM3/H?
The "HM3" suffix on SMA5J11AHM3/H denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance certification. It also signifies AEC-Q101 qualification and packaging in 7-inch tape-and-reel format (code H). This distinguishes SMA5J11AHM3/H from commercial-grade variants like SMA5J11A-E3 and ensures compliance with stringent automotive material requirements and assembly standards.
Can the SMA5J11AHM3/H be used in bidirectional configurations?
No, the SMA5J11AHM3/H is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix in its part number. Bidirectional versions carry the "CA" suffix (e.g., SMA5J11CA) and exhibit symmetrical clamping in both polarities. Using SMA5J11AHM3/H in reverse-biased configurations will result in forward conduction rather than controlled clamping, potentially damaging the device or failing to protect the circuit.
What is the thermal resistance of the SMA5J11AHM3/H, and how does it affect PCB layout?
The SMA5J11AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on minimum recommended 5.0 mm × 5.0 mm copper pads per terminal. To maintain safe junction temperatures under repeated 500 W surges, designers must allocate adequate copper area and consider thermal vias - especially in automotive applications where ambient temperatures exceed 85 °C. The SMA5J11AHM3/H datasheet specifies derating curves for elevated ambient conditions.
SMA5J11AHM3/H 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 27.5A
- Power - Peak Pulse:
- 500W
- 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)
SMA5J11AHM3/H FAQ
1.How can I place an order for SMA5J11AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J11AHM3/H 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 SMA5J11AHM3/H reliable?
The price and inventory of SMA5J11AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J11AHM3/H is usually 5 days.
3.What payment methods are accepted for SMA5J11AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J11AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J11AHM3/H?
SMA5J11AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J11AHM3/H 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 SMA5J11AHM3/H?
For technical support, including SMA5J11AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J11AHM3/H requirements.
6.How does Aetrix verify that SMA5J11AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMA5J11AHM3/H 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 SMA5J11AHM3/H meets industry standards.
7.What is the process for return or replacement of SMA5J11AHM3/H?
All SMA5J11AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J11AHM3/H, 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 SMA5J11AHM3/H part is unused and in its original packaging.
Return procedure for SMA5J11AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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