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Vishay General Semiconductor - Diodes Division SMA5J14CAHE3/61
- Part No.:
- SMA5J14CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J14CAHE3/61.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,560
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Product details
Overview
SMA5J14CAHE3/61 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 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR) at 1 mA, 500 W peak pulse power (10/1000 µs), clamping voltage of 23.2 V at 21.6 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMA5J14CAHE3/61 datasheet, SMA5J14CAHE3/61 pinout, SMA5J14CAHE3/61 application, or SMA5J14CAHE3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 1.66), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and robustness against humidity and thermal cycling.
The device delivers 500 W peak pulse power handling per the 10/1000 µs waveform standard, with thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead), supporting reliable operation up to +150 °C junction temperature under derated conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range. |
| VBR min/max | 15.6 V / 17.2 V at 1 mA - Confirmed breakdown threshold ensuring predictable turn-on during transients. |
| VC @ IPPM | 23.2 V at 21.6 A - Clamped voltage seen by protected circuit during 500 W surge; limits stress on downstream ICs. |
| PPPM | 500 W (10/1000 µs) - Surge energy absorption capacity compatible with IEC 61000-4-5 Level 4 requirements. |
| TJ max | +150 °C - Enables deployment in under-hood automotive environments and industrial enclosures. |
| MSL Level | Level 1 (J-STD-020) - Supports lead-free reflow without baking; compatible with standard SMT assembly lines. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Bidirectional conduction allows identical clamping in either direction; no cathode band marking required. |
| Case (body) | Thermal and mechanical interface | Plastic body provides UL 94 V-0 flammability rating; copper pad layout (5.0 mm × 5.0 mm per terminal) required for rated PPPM. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces. |
| Low incremental surge resistance | Enables tighter clamping (VC/VWM = 1.66) versus competing 500 W TVS diodes, reducing protected IC stress. |
| Glass passivated junction | Ensures <1.0 µA reverse leakage at VWM and long-term stability across temperature and humidity. |
| MSL Level 1, 260 °C peak | Eliminates pre-bake requirement for lead-free reflow, reducing manufacturing cost and cycle time. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and outputs from load dump and ESD events in vehicle body control modules. IC Role / Device Role: Bidirectional clamping element placed directly at connector entry point. Use Value: Withstands 500 W surges while limiting clamped voltage to 23.2 V, preserving transceiver integrity per ISO 16750-2 Pulse 5a. |
Use Scenario: Guarding differential CAN_H/CAN_L lines against EFT (IEC 61000-4-4) and surge (IEC 61000-4-5). IC Role / Device Role: Symmetric TVS pair (one per line) or single bidirectional device across differential pair. Use Value: Matches CAN bus DC common-mode range (±12 V) and clamps transients within safe margin of transceiver absolute maximum ratings. |
| Consumer Power Adapter Input | Telecom DSL Line Interface |
Use Scenario: Secondary-side overvoltage suppression on 12 V/24 V DC outputs of wall adapters and PoE injectors. IC Role / Device Role: Final-stage clamp after primary-side isolation, protecting downstream regulators and USB controllers. Use Value: 14 V VWM aligns with nominal output; 23.2 V VC prevents latch-up in 24 V-rated LDOs and PMICs. |
Use Scenario: Protecting ADSL/VDSL line drivers and receivers from lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role: Bidirectional TVS mounted across tip/ring or between line and ground in hybrid coupler stage. Use Value: Low capacitance (typ. <100 pF at VWM) avoids signal attenuation in 1–30 MHz DSL bands while meeting GR-1089-CORE surge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ14CA | Same VWM (14 V), slightly higher VC (23.7 V @ 21.2 A); non-AEC-Q101; MSL Level 1. | Commercial/industrial only; not approved for automotive ECUs or ADAS. | Select when AEC-Q101 is not required and supply chain favors Littelfuse. |
| ON Semiconductor 1.5SMC14CA | Higher PPPM (1500 W), larger SMC (DO-214AB) package; same VWM/VC specs; AEC-Q101 available in HE3 variant. | Requires PCB redesign (larger footprint); suited for higher-energy threat environments. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board space permits SMC. |
Compared with SMAJ14CA and 1.5SMC14CA, the SMA5J14CAHE3/61 uniquely combines AEC-Q101 qualification, SMA footprint, and 500 W rating-making it optimal for space-constrained automotive modules where qualification and manufacturability are mandatory.
Availability
SMA5J14CAHE3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN networks, and consumer power adapter designs requiring stable component supply, AEC-Q101 compliance, and high-volume SMT assembly support.
Supply support for SMA5J14CAHE3/61 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, power density, and automotive-grade qualification.
The SMA5J series was developed to deliver high-power-density TVS protection in compact surface-mount packages for automotive and industrial systems subject to ISO 16750 and IEC 61000-4-x transients.
FAQ
What is the polarity configuration of SMA5J14CAHE3/61?
The SMA5J14CAHE3/61 is a bidirectional TVS diode with symmetrical anode-cathode structure and no polarity marking. Unlike unidirectional variants (e.g., SMA5J14A), it clamps voltage transients equally in both directions, making it ideal for AC signal lines, differential buses like CAN, and floating power rails where polarity reversal may occur. This behavior is confirmed in the Vishay datasheet section "DEVICES FOR BIDIRECTION APPLICATIONS".
Does SMA5J14CAHE3/61 meet automotive qualification standards?
Yes, SMA5J14CAHE3/61 is AEC-Q101 qualified, as indicated by the "HE3" suffix per Vishay's ordering nomenclature. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, validating its suitability for automotive powertrain, chassis, and body electronics. The datasheet explicitly states "AEC-Q101 qualified available" and lists HE3/HM3 as automotive ordering codes.
What is the maximum clamping voltage for SMA5J14CAHE3/61 under surge conditions?
The maximum clamping voltage (VC) for SMA5J14CAHE3/61 is 23.2 V at a peak pulse current (IPPM) of 21.6 A, measured using the standardized 10/1000 µs waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table for SMA5J14CA and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
How does the thermal performance of SMA5J14CAHE3/61 affect PCB layout?
SMA5J14CAHE3/61 requires minimum 5.0 mm × 5.0 mm copper pads per terminal to achieve its rated 500 W peak pulse power, as stated in Note (2) of the "MAXIMUM RATINGS" table. Its junction-to-ambient thermal resistance (RθJA) is 80 °C/W, meaning inadequate copper area will cause excessive junction temperature rise during repeated surges, degrading clamping consistency and lifetime. Layout must follow Vishay's recommended pad dimensions in the "PACKAGE OUTLINE DIMENSIONS" section.
Is SMA5J14CAHE3/61 compatible with lead-free reflow processes?
Yes, SMA5J14CAHE3/61 meets J-STD-020 MSL Level 1 with a maximum peak reflow temperature of 260 °C, making it fully compatible with standard lead-free soldering profiles. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102, and the device requires no pre-baking prior to assembly-reducing process complexity and cost in high-volume manufacturing.
SMA5J14CAHE3/61 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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 21.6A
- 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)
SMA5J14CAHE3/61 FAQ
1.How can I place an order for SMA5J14CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J14CAHE3/61 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 SMA5J14CAHE3/61 reliable?
The price and inventory of SMA5J14CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J14CAHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J14CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J14CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J14CAHE3/61?
SMA5J14CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J14CAHE3/61 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 SMA5J14CAHE3/61?
For technical support, including SMA5J14CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J14CAHE3/61 requirements.
6.How does Aetrix verify that SMA5J14CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J14CAHE3/61 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 SMA5J14CAHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J14CAHE3/61?
All SMA5J14CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J14CAHE3/61, 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 SMA5J14CAHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J14CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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