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Vishay General Semiconductor - Diodes Division SMA5J14HE3/61
- Part No.:
- SMA5J14HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J14HE3/61.pdf
- Description:
- TVS DIODE 14VWM 25.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,169
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Product details
Overview
SMA5J14HE3/61 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 14 V standoff voltage (VWM), 15.6–17.2 V breakdown range (VBR), 23.2 V clamping voltage at 21.6 A peak pulse current (IPPM), and 500 W peak pulse power rating with 10/1000 µs waveform. It is AEC-Q101 qualified and used in automotive body control modules to protect microcontroller I/O and sensor interfaces.
For engineers reviewing the SMA5J14HE3/61 datasheet, SMA5J14HE3/61 pinout, SMA5J14HE3/61 application, or SMA5J14HE3/61 equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, RoHS-compliant matte tin leads, MSL Level 1 rating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1 µA leakage at 14 V), but conducts heavily when transient voltage exceeds its breakdown threshold to clamp downstream circuitry. Its glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance.
The device is optimized for single-pulse transients per IEC 61000-4-5 (10/1000 µs) and withstands 40 A non-repetitive forward surge (8.3 ms half-sine). Thermal resistance is 25 °C/W junction-to-lead and 80 °C/W junction-to-ambient when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC rail margin. |
| VBR min/max | 15.6 V / 17.2 V - Breakdown occurs within this range at 1 mA test current; ensures consistent turn-on across production lot. |
| VC @ IPPM | 23.2 V - Clamped voltage seen by protected IC when subjected to 21.6 A transient; determines maximum stress on downstream logic. |
| PPPM | 500 W - Peak pulse power handling capability with 10/1000 µs waveform; enables robust protection against lightning-induced surges. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments without derating. |
| Package | DO-214AC (SMA) - Surface-mount package with 5.28 mm × 4.50 mm footprint and 2.29 mm height; compatible with standard reflow profiles. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronics including temperature cycling, HTRB, and ESD. |
Pinout & Package
DO-214AC (SMA) package: molded epoxy case with cathode band marking on one end; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; forms current path during reverse-biased transient conduction. |
| Cathode (banded end) | High-side connection point | Connected to protected line (e.g., 12 V supply); avalanche conduction initiates here when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable avalanche breakdown with minimal parameter drift over lifetime and temperature. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns; eliminates bake-out requirement pre-SMT. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a), improving clamping fidelity. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, lighting drivers, and ADAS sensor interfaces. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; required for Tier 1 automotive sourcing. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 12 V CAN transceiver power pins and microcontroller GPIOs from load dump and inductive switching spikes in vehicle door modules. IC Role / Device Role: Unidirectional shunt TVS placed between VCC and GND to clamp positive-going transients above 14 V. Use Value: Limits voltage excursion to ≤23.2 V during 21.6 A surge, preventing latch-up or oxide damage in 3.3 V/5 V logic interfaces. |
Use Scenario: Safeguarding 24 V digital input channels of programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role: Standoff-rated TVS on input terminal block to absorb energy before reaching optocoupler input stage. Use Value: Withstands repeated 500 W pulses without degradation, enabling long-term reliability in factory automation environments. |
| Automotive Lighting Driver | Consumer Appliance Motor Control Board |
Use Scenario: Suppressing back-EMF from LED driver MOSFETs and solenoid loads in headlamp control units. IC Role / Device Role: Primary overvoltage clamp on high-side switch drain node, placed adjacent to power FET. Use Value: Fast response time and low Rsurge limit voltage overshoot to <25 V, preserving gate oxide integrity of 40 V rated MOSFETs. |
Use Scenario: Protecting MCU reset and communication lines on washing machine main control board exposed to motor commutation noise. IC Role / Device Role: Secondary-level TVS on UART/UART lines and reset pin, downstream of primary bulk suppression. Use Value: 1 µA leakage at 14 V prevents false resets; 23.2 V clamping ensures 3.3 V logic remains within absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ14A | Same VWM (14 V), slightly higher VC (23.8 V @ 21.2 A), identical DO-214AC package and 500 W rating. | No AEC-Q101 qualification; rated for commercial/industrial use only. | Select SMA5J14HE3/61 for automotive programs requiring AEC-Q101; choose SMAJ14A where cost optimization is prioritized and qualification not mandated. |
| ON Semiconductor 1.5SMC14A | Same electrical specs (VWM = 14 V, VC = 23.2 V), but in larger DO-214AB (SMC) package (7.11 mm × 6.22 mm). | Higher thermal mass allows better sustained surge handling but requires PCB area increase and different stencil design. | Choose SMA5J14HE3/61 when board space is constrained and AEC-Q101 compliance is required; use 1.5SMC14A only if thermal margin is critical and layout permits larger footprint. |
Compared with SMAJ14A and 1.5SMC14A, SMA5J14HE3/61 uniquely combines AEC-Q101 qualification, DO-214AC footprint, and 23.2 V clamping in a single offering-making it the preferred choice for space-constrained automotive ECUs where reliability certification is mandatory.
Availability
SMA5J14HE3/61 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input protection, and lighting driver designs requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant manufacturing.
Supply support for SMA5J14HE3/61 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, TVS devices, and power MOSFETs with emphasis on high-reliability and automotive-grade performance.
The SMA5J series was developed specifically for high-power-density transient suppression in automotive and industrial systems where compact size, AEC-Q101 compliance, and repeatable clamping behavior are essential.
FAQ
What is the polarity configuration of SMA5J14HE3/61?
SMA5J14HE3/61 is a unidirectional TVS diode: the banded end denotes the cathode and must be connected to the line being protected (e.g., 12 V rail), while the anode connects to ground. This configuration blocks reverse current during normal operation and conducts only during positive transients exceeding VBR. Bi-directional variants use the "CA" suffix (e.g., SMA5J14CA), which SMA5J14HE3/61 does not have.
Does SMA5J14HE3/61 meet automotive qualification standards?
Yes, SMA5J14HE3/61 is AEC-Q101 qualified, as confirmed by the "HE3" suffix per Vishay's ordering nomenclature and documentation. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, making SMA5J14HE3/61 suitable for under-hood and cabin automotive applications such as body control modules and lighting drivers.
What is the maximum clamping voltage of SMA5J14HE3/61 and at what current is it specified?
The maximum clamping voltage of SMA5J14HE3/61 is 23.2 V, measured at a peak pulse current (IPPM) of 21.6 A using the standardized 10/1000 µs waveform. This value represents the worst-case voltage imposed on protected circuitry during a surge event and is critical for ensuring downstream ICs remain within their absolute maximum voltage ratings.
Can SMA5J14HE3/61 be used in automated SMT assembly processes?
Yes, SMA5J14HE3/61 is explicitly designed for automated placement: it features a low-profile DO-214AC (SMA) package, matte tin-plated leads compliant with J-STD-002, and MSL Level 1 rating (peak reflow temperature up to 260 °C). No pre-bake is required, and it supports standard lead-free reflow profiles used in high-volume electronics manufacturing.
What is the meaning of the "HE3/61" suffix in SMA5J14HE3/61?
The "HE3" suffix indicates RoHS compliance and AEC-Q101 qualification with JESD 201 Class 2 whisker resistance; "61" denotes the preferred packaging code for 7-inch diameter plastic tape and reel containing 1800 units. This full part number identifies a specific, qualified variant-not just a generic family member-and ensures traceability to Vishay's automotive-grade production lot controls.
SMA5J14HE3/61 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 25.8V
- Current - Peak Pulse (10/1000µs):
- 19.4A
- 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)
SMA5J14HE3/61 FAQ
1.How can I place an order for SMA5J14HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J14HE3/61 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 SMA5J14HE3/61 reliable?
The price and inventory of SMA5J14HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J14HE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J14HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J14HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J14HE3/61?
SMA5J14HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J14HE3/61 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 SMA5J14HE3/61?
For technical support, including SMA5J14HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J14HE3/61 requirements.
6.How does Aetrix verify that SMA5J14HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J14HE3/61 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 SMA5J14HE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J14HE3/61?
All SMA5J14HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J14HE3/61, 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 SMA5J14HE3/61 part is unused and in its original packaging.
Return procedure for SMA5J14HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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