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Vishay General Semiconductor - Diodes Division SMA5J8.0CAHE3/61
- Part No.:
- SMA5J8.0CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J8.0CAHE3/61.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,235
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Product details
Overview
SMA5J8.0CAHE3/61 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 8.0 V stand-off voltage (VWM), 6.40–7.07 V breakdown voltage (VBR) at 10 mA, 500 W peak pulse power (10/1000 µs), clamping voltage of 13.6 V at 36.8 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMA5J8.0CAHE3/61 datasheet, SMA5J8.0CAHE3/61 pinout, SMA5J8.0CAHE3/61 application, or SMA5J8.0CAHE3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 1.7), RoHS-compliant and halogen-free construction, MSL Level 1 rating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, delivering consistent clamping performance without polarity dependency. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1.0 µA at VWM), while the low incremental surge resistance enables effective energy diversion during fast transients like ESD or inductive switching spikes.
The device is rated for 150 °C maximum junction temperature and exhibits typical thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead). It meets JESD201 Class 2 whisker resistance and is qualified to AEC-Q101 for under-hood automotive applications requiring robust transient immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 6.40 V / 7.07 V at 10 mA - Ensures reliable triggering within tight tolerance band |
| VC @ IPPM | 13.6 V at 36.8 A - Clamped voltage during 500 W 10/1000 µs surge, limiting downstream stress |
| PPPM | 500 W - Peak pulse power handling per single transient event |
| ID @ VWM | <1.0 µA - Ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - Enables operation in under-hood automotive environments |
| Qualification | AEC-Q101 qualified - Validated for automotive reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Bidirectional type - no polarity marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Both terminals function identically; bidirectional clamping requires no orientation during placement |
| Case (body) | Thermal and mechanical interface | Non-electrical; provides mechanical anchoring and contributes to thermal dissipation via PCB copper pads |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| Glass-passivated junction | Ensures long-term stability of VBR and low parameter drift across temperature and life cycles |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without baking preconditioning |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and ADAS subsystems subject to harsh thermal and vibration profiles |
| Low clamping ratio (VC/VWM) | 1.7 - Minimizes overvoltage exposure to protected ICs compared to higher-ratio alternatives |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Transceiver Protection |
|---|---|
Use Scenario: Protecting LIN/CAN physical layer transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential bus lines or between signal line and ground to clamp transients before they reach the transceiver input stage. Use Value: Withstand 500 W surges while maintaining clamping voltage below 13.6 V, ensuring transceiver survival under 1a/1b/2a/2b test pulses. | Use Scenario: Safeguarding industrial CAN FD nodes in factory automation systems exposed to motor drive noise and relay switching transients. IC Role / Device Role / Timing Role: Placed on CAN_H and CAN_L lines near connector entry point to shunt induced common-mode surges to chassis ground. Use Value: Symmetrical clamping prevents signal distortion on differential pairs; low leakage avoids DC bias shift in high-impedance termination networks. |
| Consumer USB 2.0 Data Line Protection | Telecom DSL Line Interface Protection |
Use Scenario: Shielding USB D+/D− lines in portable chargers and docking stations from ESD events per IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at USB connector to minimize stub length and preserve signal integrity up to 480 Mbps. Use Value: Sub-1.0 µA leakage at 8.0 V VWM avoids loading of pull-up resistors; fast response time limits ESD-induced data corruption. | Use Scenario: Protecting ADSL/VDSL line drivers and receivers in customer premises equipment against lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Bidirectional TVS deployed across tip/ring pair upstream of transformer coupling to absorb longitudinal mode surges. Use Value: 500 W PPPM rating handles telecom-grade surge waveforms (10/700 µs); AEC-Q101 qualification supports extended field life in uncontrolled environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J8.0CA-M3/61 | Same electrical specs; halogen-free molding compound, same AEC-Q101 qualification | No functional difference; selected when halogen-free compliance is mandated by OEM tier-1 requirements | Direct material substitution where halogen content must be minimized without altering circuit design |
| SMC5J8.0CAHE3/61 | Same VWM/VBR/VC/PPPM but in larger SMC (DO-214AB) package; RθJA = 35 °C/W vs. 80 °C/W | Higher thermal mass and lower thermal resistance support higher average surge duty cycles or elevated ambient temperatures | Preferred for designs with >10 surges/min or ambient >105 °C; requires PCB layout change due to larger footprint |
Compared with SMA5J8.0CAHE3/61, the M3 variant offers identical protection performance with halogen-free compliance, while the SMC5J8.0CAHE3/61 delivers superior thermal management at the cost of board space - enabling longer surge endurance in thermally constrained industrial gateways.
Availability
SMA5J8.0CAHE3/61 is available at Aetrix Electronics and suitable for automotive ECU design, industrial CAN node development, and consumer USB interface protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMA5J8.0CAHE3/61 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 automotive and industrial systems, combining AEC-Q101 qualification, low-profile packaging, and precise clamping performance across bidirectional configurations.
FAQ
What is the polarity configuration of SMA5J8.0CAHE3/61?
SMA5J8.0CAHE3/61 is a bidirectional TVS diode, meaning it functions identically in both forward and reverse directions. Unlike unidirectional variants, it has no cathode band marking and provides symmetrical clamping across its terminals - ideal for protecting AC-coupled or floating signal paths such as CAN, RS-485, or telecom lines where polarity cannot be assumed.
Does SMA5J8.0CAHE3/61 meet automotive qualification standards?
Yes, SMA5J8.0CAHE3/61 is AEC-Q101 qualified, confirming its reliability for automotive applications including engine control units, body electronics, and ADAS sensors. The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 validation, covering stress tests such as temperature cycling, highly accelerated life testing (HALT), and surge endurance under ISO 7637-2 conditions.
What is the maximum clamping voltage for SMA5J8.0CAHE3/61 during a 500 W transient?
The maximum clamping voltage (VC) for SMA5J8.0CAHE3/61 is 13.6 V at a peak pulse current (IPPM) of 36.8 A, measured under the standard 10/1000 µs waveform. This value represents the upper limit of voltage seen by downstream circuitry during worst-case surge events, ensuring protected ICs remain within safe operating voltage margins.
Can SMA5J8.0CAHE3/61 be used in place of a unidirectional TVS like SMA5J8.0AHE3/61?
No - SMA5J8.0CAHE3/61 is bidirectional and lacks polarity marking, whereas SMA5J8.0AHE3/61 is unidirectional with a defined cathode band. Substituting them requires verifying circuit topology: bidirectional use is mandatory for AC signals or floating references; unidirectional types are required where DC bias or rectification is present. Interchange may cause failure in biased circuits.
What is the thermal resistance and recommended PCB layout for SMA5J8.0CAHE3/61?
SMA5J8.0CAHE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve this rating, use minimum recommended pad layout per Vishay document 88875 - avoid thermal relief on pads and ensure solid copper connections to maximize heat dissipation during repetitive surge events.
SMA5J8.0CAHE3/61 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 36.8A
- 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)
SMA5J8.0CAHE3/61 FAQ
1.How can I place an order for SMA5J8.0CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J8.0CAHE3/61 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 SMA5J8.0CAHE3/61 reliable?
The price and inventory of SMA5J8.0CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J8.0CAHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J8.0CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J8.0CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J8.0CAHE3/61?
SMA5J8.0CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J8.0CAHE3/61 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 SMA5J8.0CAHE3/61?
For technical support, including SMA5J8.0CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J8.0CAHE3/61 requirements.
6.How does Aetrix verify that SMA5J8.0CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J8.0CAHE3/61 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 SMA5J8.0CAHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J8.0CAHE3/61?
All SMA5J8.0CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J8.0CAHE3/61, 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 SMA5J8.0CAHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J8.0CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J8.0CAHE3/61 Tags
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