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Vishay General Semiconductor - Diodes Division SMA5J17CHE3/61
- Part No.:
- SMA5J17CHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J17CHE3/61.pdf
- Description:
- TVS DIODE 17VWM 30.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,652
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Product details
Overview
SMA5J17CHE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 17 V standoff voltage (VWM), 18.9–20.9 V breakdown range (VBR), 27.6 V clamping voltage at 18.1 A peak pulse current, 500 W peak pulse power rating, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMA5J17CHE3/61 datasheet, SMA5J17CHE3/61 pinout, SMA5J17CHE3/61 application, or SMA5J17CHE3/61 equivalent, key selection criteria include its unidirectional polarity, 150 °C max junction temperature, low incremental surge resistance, glass-passivated junction, and RoHS-compliant matte tin-plated leads meeting J-STD-002 solderability standards.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below 17 V reverse standoff voltage and rapidly transitions to low-impedance conduction when transients exceed its breakdown threshold. Its 10/1000 µs waveform response delivers consistent clamping performance under standardized surge conditions.
The device uses a planar passivated silicon junction with thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead), enabling reliable operation up to 150 °C junction temperature. Its DO-214AC package supports automated placement and meets UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 18.9 V / 20.9 V - Verified breakdown occurs within this range at 1 mA test current |
| VC @ IPPM | 27.6 V - Clamped voltage seen across terminals during 18.1 A 10/1000 µs surge |
| PPPM | 500 W - Peak pulse power handling capability under standard surge waveform |
| IPPM | 18.1 A - Maximum non-repetitive surge current it can safely divert |
| TJ max | 150 °C - Absolute maximum junction temperature for reliable long-term operation |
| RθJA | 80 °C/W - Thermal resistance determines required PCB copper area for thermal management |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking on one end; leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in unidirectional configuration; carries forward surge current during positive transients |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line; initiates avalanche conduction when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing |
| Glass passivated chip junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients by reducing dynamic impedance |
| UL 94 V-0 molding compound | Self-extinguishing encapsulant reduces fire risk in high-power fault conditions |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges above 17 V. Use Value: Limits voltage excursions to ≤27.6 V during 18.1 A surges, preventing damage to downstream regulators and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems. IC Role / Device Role / Timing Role: TVS connected across differential signal pair to absorb ESD and switching noise. Use Value: Maintains signal integrity by clamping transients before they reach precision ADC inputs, with <1 μA leakage at 17 V. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
Use Scenario: Securing 24 V or 48 V telecom power supplies against lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression stage before DC/DC converters and PMICs. Use Value: Handles 500 W peak pulses without degradation, ensuring system uptime in outdoor base station deployments. | Use Scenario: Adding robustness to USB VBUS lines in portable speakers and smart home hubs. IC Role / Device Role / Timing Role: Unidirectional clamping device between VBUS and GND to suppress hot-swap and ESD events. Use Value: Provides 27.6 V clamping with 1.0 μA max reverse leakage at 17 V, preserving standby power budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J17A-E3/61 | Commercial-grade version; lacks AEC-Q101 qualification and HE3 whisker test compliance | Not suitable for automotive under-hood or safety-critical modules | Select when cost sensitivity outweighs automotive qualification requirements |
| SMC5J17AHE3/61 | Same electrical specs but in larger DO-214AB (SMC) package with higher thermal mass and 600 W PPPM | Better suited for high-repetition surge environments due to improved thermal dissipation | Choose when board space allows and surge repetition rate exceeds 1 Hz |
Compared with SMA5J17A-E3/61, SMA5J17CHE3/61 adds automotive qualification and enhanced whisker resistance; compared with SMC5J17AHE3/61, it trades package size and thermal margin for compact DO-214AC footprint-ideal where space is constrained but single-event surge protection suffices.
Availability
SMA5J17CHE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power inputs, and consumer USB port protection requiring stable component supply and AEC-Q101 assurance.
Supply support for SMA5J17CHE3/61 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, high-reliability applications-including automotive, industrial, and telecom-where fast clamping, low leakage, and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of the SMA5J17CHE3/61 under standard surge conditions?
The SMA5J17CHE3/61 exhibits a maximum clamping voltage (VC) of 27.6 V when subjected to an 18.1 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC/ANSI standards and ensures downstream circuitry remains within safe voltage limits during transient events. The SMA5J17CHE3/61 achieves this clamping performance while maintaining low incremental surge resistance for minimal overshoot.
Is the SMA5J17CHE3/61 suitable for automotive applications?
Yes, the SMA5J17CHE3/61 is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and infotainment systems. Its HE3 suffix denotes compliance with JESD 201 Class 2 whisker testing and RoHS requirements. The SMA5J17CHE3/61 operates reliably from -55 °C to +150 °C and withstands load dump and ISO 7637-2 pulses when properly mounted on recommended copper pads.
What is the difference between SMA5J17CHE3/61 and SMA5J17A-E3/61?
The SMA5J17CHE3/61 is the AEC-Q101-qualified, automotive-grade variant with HE3 whisker test compliance (JESD 201 Class 2), whereas SMA5J17A-E3/61 is the commercial-grade version lacking automotive qualification. Both share identical electrical parameters (VWM, VBR, VC, PPPM), but only the SMA5J17CHE3/61 is approved for under-hood and safety-related automotive modules per industry reliability standards.
What package type does the SMA5J17CHE3/61 use, and what are its mounting requirements?
The SMA5J17CHE3/61 uses the DO-214AC (SMA) surface-mount package with matte tin-plated leads. For optimal thermal and surge performance, it must be mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, per Vishay's datasheet Fig. 2 derating curve. The SMA5J17CHE3/61 is MSL Level 1 compliant and compatible with standard lead-free reflow profiles peaking at 260 °C.
Does the SMA5J17CHE3/61 have polarity markings, and how is it oriented in circuit?
Yes, the SMA5J17CHE3/61 is unidirectional and features a cathode band marking on the banded end of the DO-214AC package. In circuit, the cathode connects to the protected line (e.g., 12 V rail), and the anode connects to ground. This orientation enables clamping only during reverse-voltage transients-forward conduction is not intended for normal operation. The SMA5J17CHE3/61 must be installed with correct polarity to function as specified.
SMA5J17CHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.5V
- Current - Peak Pulse (10/1000µs):
- 16.4A
- 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)
SMA5J17CHE3/61 FAQ
1.How can I place an order for SMA5J17CHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J17CHE3/61 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 SMA5J17CHE3/61 reliable?
The price and inventory of SMA5J17CHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J17CHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J17CHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J17CHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J17CHE3/61?
SMA5J17CHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J17CHE3/61 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 SMA5J17CHE3/61?
For technical support, including SMA5J17CHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J17CHE3/61 requirements.
6.How does Aetrix verify that SMA5J17CHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J17CHE3/61 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 SMA5J17CHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J17CHE3/61?
All SMA5J17CHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J17CHE3/61, 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 SMA5J17CHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J17CHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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