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Vishay General Semiconductor - Diodes Division SMA5J6.5CHE3/5A
- Part No.:
- SMA5J6.5CHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J6.5CHE3/5A.pdf
- Description:
- TVS DIODE 6.5VWM 12.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,351
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Product details
Overview
SMA5J6.5CHE3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-214AC (SMA) package, designed for high-energy surge protection on DC power rails and signal lines. It features 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR at 10 mA), 500 W peak pulse power (10/1000 µs), 44.6 A peak pulse current (IPPM), and clamps to 11.2 V at rated surge. It is AEC-Q101 qualified and used in automotive power supply input stages.
For engineers reviewing the SMA5J6.5CHE3/5A datasheet, SMA5J6.5CHE3/5A pinout, SMA5J6.5CHE3/5A application, or SMA5J6.5CHE3/5A equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, RoHS-compliant matte tin-plated leads, MSL Level 1 rating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a silicon avalanche diode optimized for transient suppression in DC circuits. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling consistent clamping performance under repetitive 10/1000 µs surges up to 500 W. The unidirectional configuration provides forward conduction capability with 3.5 V forward voltage at 25 A.
Thermal design relies on low junction-to-lead thermal resistance (25 °C/W) and junction-to-ambient resistance (80 °C/W), requiring minimum recommended pad layout for rated power dissipation. It meets J-STD-020 reflow profile (260 °C peak) and JESD201 Class 2 whisker resistance when specified with HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - guaranteed avalanche initiation range defining circuit protection threshold |
| VC @ IPPM | 11.2 V - clamped voltage during 44.6 A surge, limiting downstream component stress |
| PPPM | 500 W - peak pulse power handling for 10/1000 µs waveform per JEDEC standards |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine), supporting inrush tolerance |
| TJ max | 150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJL | 25 °C/W - low junction-to-lead thermal resistance critical for PCB heat extraction in high-power transients |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, low-profile plastic case with cathode band marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to protected line's lower-potential side (e.g., GND or negative rail) |
| Cathode | Avalanche clamping node / surge sink | Connected to protected line's higher-potential side (e.g., +12 V rail); marked with band |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualification | Validates suitability for automotive power electronics including engine control units and body modules |
| MSL Level 1 rating | Enables standard SMT reflow without moisture sensitivity concerns (peak 260 °C) |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and JESD22-B102, with JESD201 Class 2 whisker resistance |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges above 6.5 V. Use Value: Limits voltage seen by downstream LDOs and microcontrollers to ≤11.2 V during 44.6 A pulses, preventing latch-up or damage. | Use Scenario: Shielding analog sensor outputs (e.g., pressure or temperature sensors) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on signal line referenced to local ground. Use Value: Clamps ±15 kV contact ESD (IEC 61000-4-2) while maintaining signal integrity due to fast response and minimal leakage (<500 nA at 6.5 V). |
| Consumer USB Port Surge Suppression | Telecom DC Power Feed Protection |
Use Scenario: Safeguarding USB VBUS lines in portable chargers and docking stations from hot-plug and inductive switching spikes. IC Role / Device Role / Timing Role: Series-connected unidirectional TVS on 5 V supply path to downstream USB controller. Use Value: Responds in <1 ps to limit transient overvoltage to 11.2 V, preserving USB PHY compliance and preventing port reset. | Use Scenario: Protecting PoE-powered devices (e.g., IP cameras) from lightning-induced surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Primary-level unidirectional clamp on DC input before DC/DC converter stage. Use Value: Absorbs 500 W surges without degradation, maintaining system uptime in outdoor telecom infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J6.5A-E3/5A | Same electrical specs but commercial-grade (non-AEC-Q101); identical DO-214AC package and pinout | Lacks automotive qualification; suitable for industrial/commercial power supplies only | Select when AEC-Q101 is not required and cost optimization is prioritized |
| SMC5J6.5AHE3/5A | Higher 1500 W PPPM, larger DO-214AB (SMC) package, same VWM/VBR range | Used where higher surge margin is needed (e.g., front-end AC/DC inputs); requires PCB layout change | Select when system-level surge testing exceeds 500 W requirements and board space allows larger footprint |
Compared with SMA5J6.5A-E3/5A, the SMA5J6.5CHE3/5A adds AEC-Q101 qualification for automotive use; compared with SMC5J6.5AHE3/5A, it trades surge capacity for compact DO-214AC size-ideal for space-constrained automotive modules needing certified reliability.
Availability
SMA5J6.5CHE3/5A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and consumer power adapter designs requiring stable component supply and AEC-Q101 compliance.
Supply support for SMA5J6.5CHE3/5A 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, and transient protection devices with emphasis on reliability and automotive-grade qualification.
The SMA5J series is engineered for high-power-density transient suppression in harsh environments, targeting automotive power systems, industrial automation, and telecom infrastructure where robustness and standardized qualification are mandatory.
FAQ
What is the polarity configuration of the SMA5J6.5CHE3/5A?
The SMA5J6.5CHE3/5A is a unidirectional transient voltage suppressor diode. Its cathode is marked with a band on the DO-214AC package body. When installed, the cathode connects to the higher-potential side of the protected line (e.g., +12 V), and the anode connects to ground or the lower-potential reference. This configuration enables forward conduction during positive surges and avalanche clamping during reverse overvoltage events.
Does the SMA5J6.5CHE3/5A meet automotive qualification standards?
Yes, the SMA5J6.5CHE3/5A is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3". This qualification validates its reliability for automotive applications including engine control, body electronics, and infotainment systems under temperature cycling, humidity, and mechanical stress conditions defined in the AEC-Q101 standard.
What is the maximum clamping voltage of the SMA5J6.5CHE3/5A under rated surge conditions?
The SMA5J6.5CHE3/5A clamps to a maximum of 11.2 V when subjected to its rated 44.6 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured at TA = 25 °C on minimum recommended PCB pads and defines the upper voltage limit imposed on protected circuitry during transient events.
Can the SMA5J6.5CHE3/5A be used in bi-directional protection applications?
No, the SMA5J6.5CHE3/5A is strictly unidirectional. For bi-directional transient suppression, Vishay specifies part numbers with the "CA" suffix (e.g., SMA5J6.5CA). Using the SMA5J6.5CHE3/5A in a bi-directional configuration would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
What packaging and reel options are available for the SMA5J6.5CHE3/5A?
The SMA5J6.5CHE3/5A is supplied in 13-inch diameter plastic tape and reel format with a base quantity of 7500 units per reel (ordering code suffix "/5A"). It uses RoHS-compliant matte tin-plated leads and meets J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements, supporting high-yield automated assembly.
SMA5J6.5CHE3/5A 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 40.7A
- 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)
SMA5J6.5CHE3/5A FAQ
1.How can I place an order for SMA5J6.5CHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J6.5CHE3/5A 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 SMA5J6.5CHE3/5A reliable?
The price and inventory of SMA5J6.5CHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J6.5CHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J6.5CHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J6.5CHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J6.5CHE3/5A?
SMA5J6.5CHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J6.5CHE3/5A 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 SMA5J6.5CHE3/5A?
For technical support, including SMA5J6.5CHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J6.5CHE3/5A requirements.
6.How does Aetrix verify that SMA5J6.5CHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J6.5CHE3/5A 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 SMA5J6.5CHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J6.5CHE3/5A?
All SMA5J6.5CHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J6.5CHE3/5A, 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 SMA5J6.5CHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J6.5CHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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