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Vishay General Semiconductor - Diodes Division SMA5J14CHE3/61
- Part No.:
- SMA5J14CHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J14CHE3/61.pdf
- Description:
- TVS DIODE 14VWM 25.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,970
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Product details
Overview
SMA5J14CHE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor 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), 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 SMA5J14CHE3/61 datasheet, SMA5J14CHE3/61 pinout, SMA5J14CHE3/61 application, or SMA5J14CHE3/61 equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, low incremental surge resistance, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a clamping-type TVS diode, leveraging an avalanche breakdown mechanism to limit transient overvoltages before they damage downstream ICs or MOSFETs. Its glass-passivated junction ensures stable electrical characteristics and long-term reliability under repetitive surge stress.
The SMA5J14CHE3/61 is rated for non-repetitive 10/1000 µs waveform surges up to 500 W and supports peak forward surge current of 40 A (8.3 ms half-sine). Thermal resistance is 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead), enabling effective heat dissipation in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR min/max | 15.6 V / 17.2 V - Breakdown voltage range at 1 mA test current; ensures consistent turn-on across production lots. |
| VC @ IPPM | 23.2 V - Clamping voltage at 21.6 A peak pulse current; determines maximum stress seen by protected circuitry. |
| PPPM | 500 W - Peak pulse power handling (10/1000 µs); enables robust protection against lightning-induced or inductive-switching transients. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| Package | DO-214AC (SMA) - Surface-mount package with 0.208" × 0.157" footprint; compatible with standard reflow profiles and J-STD-020 MSL Level 1. |
Pinout & Package
DO-214AC (SMA) package: molded epoxy case with matte tin-plated leads; cathode indicated by band at one end; no marking on bi-directional variants (not applicable here).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration. |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., 12 V rail); conducts during positive transients relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements. |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus silicon nitride or polymer passivation. |
| Low profile DO-214AC package | Enables high-density PCB layout and compatibility with automated pick-and-place equipment (0.090" height max). |
| MSL Level 1 rating | Allows unlimited floor life and exposure to standard reflow soldering without baking preconditioning. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in automotive ECUs from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and input filter capacitor. Use Value: Limits transient voltage to ≤23.2 V during 500 W surges, preventing latch-up or gate oxide damage in downstream PMICs and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems. IC Role / Device Role / Timing Role: Point-of-entry protection on twisted-pair or shielded cable interfaces exposed to ESD and switching noise. Use Value: Responds in <1 ps to clamp fast transients while maintaining <1 μA leakage at 14 V, preserving signal integrity and ADC accuracy. |
| DC Power Supply Input Protection | Telecom Line Card Surge Suppression |
Use Scenario: Front-end protection for AC/DC adapters and PoE-powered devices against AC line transients. IC Role / Device Role / Timing Role: Primary surge suppression stage before bulk capacitance and secondary regulation. Use Value: Absorbs 500 W energy without degradation, supporting EN 61000-4-5 Level 4 compliance with minimal board space. | Use Scenario: Secondary-level protection on Ethernet PHY interfaces and DSL line drivers. IC Role / Device Role / Timing Role: Back-to-back or single-diode clamping on differential pairs referenced to chassis ground. Use Value: Delivers 21.6 A peak pulse current capacity with 23.2 V clamping, meeting GR-1089-CORE telecom surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J14A-E3/61 | Commercial-grade variant; same electrical specs but not AEC-Q101 qualified. | Lacks automotive qualification; suitable for consumer or industrial non-automotive use. | Select when AEC-Q101 is not required and cost sensitivity is higher. |
| SMCJ14AHE3/73 | Higher power rating (1500 W), larger DO-214AB (SMC) package, same VWM/VC values. | Used where higher surge energy must be absorbed without derating; requires larger PCB area. | Choose when system-level testing shows 500 W insufficient for worst-case transients. |
Compared with SMA5J14A-E3/61 and SMCJ14AHE3/73, the SMA5J14CHE3/61 uniquely combines AEC-Q101 qualification, 500 W capability, and DO-214AC footprint-making it optimal for space-constrained automotive modules requiring validated reliability.
Availability
SMA5J14CHE3/61 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, DC power supply inputs, and telecom line cards requiring stable component supply and full traceability.
Supply support for SMA5J14CHE3/61 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, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The SMA5J series is engineered for high-power-density transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where compact size, AEC-Q101 compliance, and repeatable clamping behavior are critical.
FAQ
What is the polarity configuration of the SMA5J14CHE3/61?
The SMA5J14CHE3/61 is a unidirectional transient voltage suppressor diode. Its cathode is marked by a band on the package body, and it conducts only when the cathode is at a higher potential than the anode-making it suitable for DC rail protection where polarity is fixed. This differs from bi-directional variants like SMA5J14CA, which lack polarity marking and suppress transients in both directions.
Does the SMA5J14CHE3/61 meet automotive qualification standards?
Yes, the SMA5J14CHE3/61 is AEC-Q101 qualified, as confirmed by Vishay's documentation and part numbering convention (HE3 suffix). This qualification covers stress tests including high-temperature operating life, temperature cycling, and surge robustness-ensuring suitability for under-hood and chassis-mounted automotive electronics where reliability is mission-critical.
What is the maximum clamping voltage of the SMA5J14CHE3/61 under surge conditions?
The SMA5J14CHE3/61 has a maximum clamping voltage (VC) of 23.2 V at its rated peak pulse current (IPPM) of 21.6 A, measured using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full-rated transient event and is guaranteed across the operating temperature range.
How does the thermal performance of the SMA5J14CHE3/61 affect PCB layout?
The SMA5J14CHE3/61 has a junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. To maintain TJ ≤ 150 °C during repeated surges, designers must ensure adequate copper area and avoid excessive ambient temperature buildup-especially in sealed enclosures or stacked boards.
Is the SMA5J14CHE3/61 RoHS compliant and lead-free?
Yes, the SMA5J14CHE3/61 is RoHS compliant and lead-free, as indicated by the "E3" suffix in its part number and confirmed in Vishay's material categorization documentation. The matte tin-plated terminals meet J-STD-002 and JESD 22-B102 solderability standards, and the device passes JESD 201 Class 1A whisker testing.
SMA5J14CHE3/61 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):
- 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)
SMA5J14CHE3/61 FAQ
1.How can I place an order for SMA5J14CHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J14CHE3/61 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 SMA5J14CHE3/61 reliable?
The price and inventory of SMA5J14CHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J14CHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J14CHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J14CHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J14CHE3/61?
SMA5J14CHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J14CHE3/61 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 SMA5J14CHE3/61?
For technical support, including SMA5J14CHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J14CHE3/61 requirements.
6.How does Aetrix verify that SMA5J14CHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J14CHE3/61 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 SMA5J14CHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J14CHE3/61?
All SMA5J14CHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J14CHE3/61, 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 SMA5J14CHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J14CHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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