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Vishay General Semiconductor - Diodes Division SMA5J8.0CHE3/5A
- Part No.:
- SMA5J8.0CHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J8.0CHE3/5A.pdf
- Description:
- TVS DIODE 8VWM 15VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,900
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Product details
Overview
SMA5J8.0CHE3/5A 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 8.0 V stand-off voltage (VWM), 13.6 V clamping voltage (VC) at 36.8 A peak pulse current (IPPM), 500 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMA5J8.0CHE3/5A datasheet, SMA5J8.0CHE3/5A pinout, SMA5J8.0CHE3/5A application, or SMA5J8.0CHE3/5A equivalent, key selection criteria include bi-directional clamping capability, low incremental surge resistance, RoHS-compliant AEC-Q101 qualification, thermal resistance (RθJA = 80 °C/W), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamped crowbar during transients, conducting bidirectionally when reverse or forward voltage exceeds its breakdown threshold (VBR = 8.89–9.83 V). Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for protecting sensitive ICs against ESD and load-switching spikes.
Designed for surface-mount reliability, it meets MSL Level 1 (260 °C reflow peak), uses matte tin-plated leads per J-STD-002, and supports high-surge immunity with IFSM = 40 A (uni-directional only; not applicable here due to bi-directional configuration).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VC @ IPPM | 13.6 V - Clamped voltage seen by protected circuit during 36.8 A transient (10/1000 µs) |
| PPPM | 500 W - Peak transient power handling capacity under standardized surge waveform |
| VBR min/max | 8.89 V / 9.83 V - Verified breakdown range at 1 mA test current, ensuring consistent turn-on behavior |
| ID @ VWM | <1.0 µA - Ultra-low leakage preserves signal integrity and battery life in always-on circuits |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 80 °C/W - Thermal resistance defining required PCB copper area for sustained power dissipation |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case meeting UL 94 V-0, 0.208" × 0.157" footprint, cathode band omitted (bi-directional type). Matte tin-plated leads, compatible with J-STD-002 soldering standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional terminal pair | No polarity marking; terminals are functionally symmetric for AC or dual-rail protection |
| Case (body) | Non-electrical mechanical interface | Thermally conductive path to PCB copper; no electrical connection or grounding requirement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| Glass-passivated junction | Ensures long-term stability of VBR and leakage under thermal stress and humidity exposure |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for downstream ICs |
| MSL Level 1 rating | Enables single-pass reflow without moisture-induced popcorn failure or delamination |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and EU Directive 2011/65/EU hazardous substance restrictions |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs (e.g., body control modules) against load-dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across power rail input prior to DC/DC converter. Use Value: Limits transient excursions to ≤13.6 V, preventing latch-up or damage to 16 V-rated regulators and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Low-capacitance TVS shunting differential or common-mode transients on twisted-pair signal lines. Use Value: Sub-1 µA leakage avoids DC offset errors; 13.6 V clamping preserves ADC input range while surviving 500 W surges. |
| Telecom Data Line Surge Suppression | Consumer USB Port ESD Protection |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Bi-directional TVS installed at connector entry point, referenced to local ground plane. Use Value: Withstands repeated 10/1000 µs surges up to 36.8 A without degradation, maintaining signal integrity over 10+ years. | Use Scenario: Hardening USB 2.0 data lines (D+/D−) in smart home hubs against human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Fast-response clamp integrated into USB connector footprint, minimizing trace length to reduce inductance. Use Value: <1 ns response time limits ESD voltage rise to safe levels before transceiver input stages are stressed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J8.0AHE3/5A | Same electrical specs and AEC-Q101 qualification; differs only in packaging code (HE3 vs. HE3/5A denotes same reel size and lead finish) | No functional difference; identical use cases and layout requirements | Select SMA5J8.0CHE3/5A when ordering from distributors stocking the /5A reel variant with confirmed HE3 qualification |
| SMA6J8.0AHE3/5A | 600 W PPPM, higher IPPM (41.7 A), same VWM/VC; larger DO-214AB (SMB) package | Requires larger PCB footprint; suited for systems needing higher surge margin without changing clamping level | Choose SMA6J8.0AHE3/5A only if design requires >500 W surge rating and can accommodate SMB footprint |
Compared with SMA5J8.0AHE3/5A, the SMA5J8.0CHE3/5A offers identical protection performance in the same qualified grade; versus SMA6J8.0AHE3/5A, it trades 100 W lower surge rating for 30% smaller board area and lower system cost where 500 W suffices.
Availability
SMA5J8.0CHE3/5A is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom infrastructure, and consumer USB protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMA5J8.0CHE3/5A 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 automotive-grade validation.
The SMA5J series is engineered specifically for high-energy transient suppression in space-constrained, high-reliability applications-especially automotive power distribution, industrial control I/O, and communication line protection where bi-directional clamping and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the SMA5J8.0CHE3/5A under maximum rated surge current?
The SMA5J8.0CHE3/5A clamps to 13.6 V when subjected to its peak pulse current of 36.8 A (10/1000 µs waveform). This value is measured and guaranteed per Vishay's datasheet (Document Number: 88875, Rev. 24-Oct-12), and defines the maximum voltage imposed on protected circuitry during standardized surge events. The SMA5J8.0CHE3/5A maintains this clamping performance across its full operating temperature range.
Is the SMA5J8.0CHE3/5A suitable for automotive applications?
Yes, the SMA5J8.0CHE3/5A is AEC-Q101 qualified and explicitly rated for automotive use. Its construction-including glass-passivated junction, MSL Level 1 reflow compatibility, and operating junction temperature up to +150 °C-meets stringent automotive environmental and reliability requirements. The SMA5J8.0CHE3/5A is commonly deployed in body control modules, infotainment power rails, and sensor interfaces within vehicles.
Does the SMA5J8.0CHE3/5A have polarity markings on the package?
No, the SMA5J8.0CHE3/5A does not feature polarity markings because it is a bi-directional TVS diode. Unlike uni-directional variants (e.g., SMA5J8.0A), which use a cathode band, the SMA5J8.0CHE3/5A has symmetric terminals and functions identically in either orientation-making it ideal for AC-coupled or floating signal line protection where polarity cannot be assumed.
What is the maximum leakage current of the SMA5J8.0CHE3/5A at its stand-off voltage?
The SMA5J8.0CHE3/5A exhibits a maximum reverse leakage current (ID) of 1.0 µA when biased at its 8.0 V stand-off voltage (VWM) and tested at 25 °C. This ultra-low leakage ensures minimal impact on battery-powered or high-impedance sensor circuits, preserving accuracy and extending operational life. The SMA5J8.0CHE3/5A maintains this specification across its full temperature range per datasheet characterization.
What package type and dimensions does the SMA5J8.0CHE3/5A use?
The SMA5J8.0CHE3/5A uses the DO-214AC (SMA) surface-mount package: 0.208" × 0.157" (5.28 mm × 3.99 mm) outline with 0.078" (1.98 mm) lead spacing. It features matte tin-plated leads compliant with J-STD-002 and JESD22-B102, and a UL 94 V-0 rated molding compound. The SMA5J8.0CHE3/5A is optimized for automated pick-and-place and reflow soldering on standard PCB land patterns.
SMA5J8.0CHE3/5A 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 33.3A
- 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)
SMA5J8.0CHE3/5A FAQ
1.How can I place an order for SMA5J8.0CHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J8.0CHE3/5A 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 SMA5J8.0CHE3/5A reliable?
The price and inventory of SMA5J8.0CHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J8.0CHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J8.0CHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J8.0CHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J8.0CHE3/5A?
SMA5J8.0CHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J8.0CHE3/5A 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 SMA5J8.0CHE3/5A?
For technical support, including SMA5J8.0CHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J8.0CHE3/5A requirements.
6.How does Aetrix verify that SMA5J8.0CHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J8.0CHE3/5A 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 SMA5J8.0CHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J8.0CHE3/5A?
All SMA5J8.0CHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J8.0CHE3/5A, 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 SMA5J8.0CHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J8.0CHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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