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Vishay General Semiconductor - Diodes Division SMA5J14A-E3/61
- Part No.:
- SMA5J14A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J14A-E3/61.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,104
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Product details
Overview
SMA5J14A-E3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal 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), and clamps transients to ≤23.2 V at 21.6 A IPPM - used in automotive power rail and industrial sensor interface protection.
For engineers reviewing the SMA5J14A-E3/61 datasheet, SMA5J14A-E3/61 pinout, SMA5J14A-E3/61 application, or SMA5J14A-E3/61 equivalent, key selection criteria include clamping voltage vs. protected IC's absolute maximum rating, thermal derating above 25 °C, unidirectional polarity marking, and RoHS-compliant matte tin plating per J-STD-002.
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), then rapidly avalanches below 17.2 V to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable VBR and low incremental surge resistance.
Designed for 10/1000 μs waveform compliance, it delivers 500 W peak pulse power when mounted on 5.0 mm × 5.0 mm copper pads, 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.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse operating voltage before significant leakage begins; sets upper limit for protected line's nominal DC voltage. |
| VBR min/max | 15.6 V / 17.2 V at 1 mA - guaranteed avalanche onset range; defines minimum overvoltage threshold for clamping activation. |
| VC @ IPPM | 23.2 V at 21.6 A - clamped voltage during 500 W surge; must be below protected device's absolute maximum rating. |
| PPPM | 500 W (10/1000 μs) - peak transient energy handling capacity; determines survivability against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | 1.0 μA - reverse leakage at stand-off voltage; ensures minimal power loss and no false triggering in low-power circuits. |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive and industrial ambient environments. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band at one end; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes shunt path during avalanche conduction. |
| Cathode | High-side connection point | Marked with band; connects to protected line (e.g., 12 V rail); carries full surge current into ground. |
Key Features
| Feature | Design Value |
|---|---|
| Low profile SMA package | Enables automated placement and fits tight board spaces; compatible with standard DO-214AC pick-and-place tooling. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress without parameter drift. |
| MSL Level 1 (260 °C) | Supports lead-free reflow without popcorn effect or delamination; no floor life limitation before assembly. |
| AEC-Q101 qualification option | HE3/HM3 variants available for automotive applications; this E3/61 variant is commercial-grade, RoHS-compliant. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V supply lines in engine control units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between battery rail and local regulator input. Use Value: Clamps transients to ≤23.2 V, preventing damage to downstream LDOs and microcontrollers rated for 28 V abs max. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA loop drivers) from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-leakage (1.0 μA) TVS connected across signal and ground near connector entry. Use Value: Maintains signal integrity with negligible DC loading while suppressing ±15 kV contact ESD per IEC 61000-4-2. |
| Consumer USB Power Input | Telecom Line Card Surge Suppression |
Use Scenario: Secondary overvoltage protection on 5 V USB-C power input after primary DC-DC stage. IC Role / Device Role / Timing Role: Stand-off-rated TVS (14 V) placed upstream of USB PD controller to block >23.2 V faults. Use Value: Prevents latch-up or gate oxide rupture in USB interface ICs during hot-swap or adapter fault events. |
Use Scenario: Front-end protection on telecom line cards exposed to lightning-induced surges on twisted-pair interfaces. IC Role / Device Role / Timing Role: High-power (500 W) TVS integrated into hybrid surge module with GDT and filter components. Use Value: Handles 10/1000 μs surges up to 21.6 A without degradation, meeting GR-1089-CORE Level 3 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 |
|---|---|---|---|
| Littelfuse SMAJ14A | Same VWM (14 V), slightly higher VC (23.7 V @ 21.2 A), identical SMA package and MSL level. | Identical use cases; minor clamping voltage difference may affect margin for 24 V tolerant ICs. | Select SMA5J14A-E3/61 when lower clamping voltage (23.2 V) is required to meet tighter protected-device voltage margins. |
| ON Semiconductor 1.5SMC14A | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VWM/VBR range but 3× footprint area. | Used where higher surge energy or board-level thermal mass allows larger package; not drop-in replacement. | Choose SMA5J14A-E3/61 for space-constrained designs requiring 500 W in minimal PCB area (SMA footprint). |
Compared with SMAJ14A, SMA5J14A-E3/61 offers tighter clamping (23.2 V vs. 23.7 V) in identical form factor; versus 1.5SMC14A, it trades surge capacity for 60% smaller PCB area - critical for dense automotive ECUs and portable telecom modules.
Availability
SMA5J14A-E3/61 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and consumer USB-C input surge suppression requiring stable component supply and RoHS-compliant commercial-grade TVS performance.
Supply support for SMA5J14A-E3/61 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 and automotive-grade qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, thermally demanding environments - targeting automotive, industrial, and telecom systems needing robust 500 W surge immunity in SMA footprint.
FAQ
What is the clamping voltage of SMA5J14A-E3/61 and how is it measured?
The SMA5J14A-E3/61 has a maximum clamping voltage (VC) of 23.2 V at 21.6 A peak pulse current (IPPM), tested with a 10/1000 μs waveform per IEC 61000-4-5. This value is measured across the device terminals while conducting the specified surge current, and represents the highest voltage seen by downstream circuitry during a worst-case transient event. The SMA5J14A-E3/61 achieves this clamping performance due to its low incremental surge resistance and optimized junction design.
Is SMA5J14A-E3/61 suitable for automotive applications?
The SMA5J14A-E3/61 is RoHS-compliant and qualified to MSL Level 1, but it is a commercial-grade part (E3 suffix). For AEC-Q101-qualified automotive use, Vishay offers the SMA5J14AHE3_A variant (HE3 suffix). While SMA5J14A-E3/61 can be used in non-safety-critical automotive subsystems, designers requiring formal qualification must specify the HE3 version. The SMA5J14A-E3/61 itself is not AEC-Q101 certified.
What does the "-E3/61" suffix mean in SMA5J14A-E3/61?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads; "/61" denotes packaging in 7-inch plastic tape and reel, with 1800 units per reel. This ordering code specifies both environmental compliance and logistics format - distinct from M3 (halogen-free), HE3 (AEC-Q101), or HM3 variants. The SMA5J14A-E3/61 is shipped ready for SMT assembly with standard reflow profiles.
How does SMA5J14A-E3/61 compare to SMAJ14A in terms of thermal performance?
Both SMA5J14A-E3/61 and SMAJ14A use the SMA (DO-214AC) package and share similar thermal resistance values: ~80 °C/W junction-to-ambient (RθJA) and ~25 °C/W junction-to-lead (RθJL). However, SMA5J14A-E3/61 is characterized with tighter VBR tolerance (15.6–17.2 V) and lower clamping voltage (23.2 V), yielding marginally better thermal efficiency under sustained surge conditions due to reduced power dissipation at the same IPPM. The SMA5J14A-E3/61 thus maintains lower junction temperature rise during repetitive transients.
Can SMA5J14A-E3/61 be used in bidirectional configurations?
No - SMA5J14A-E3/61 is a unidirectional TVS diode, identified by cathode band marking. Bidirectional operation requires the CA-suffixed variant (e.g., SMA5J14CA). Using SMA5J14A-E3/61 in reverse-biased AC applications would result in forward conduction and failure. The SMA5J14A-E3/61 must be oriented with cathode toward the protected line and anode to ground to function correctly as a shunt protector.
SMA5J14A-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J14A-E3/61 FAQ
1.How can I place an order for SMA5J14A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J14A-E3/61 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 SMA5J14A-E3/61 reliable?
The price and inventory of SMA5J14A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J14A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J14A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J14A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J14A-E3/61?
SMA5J14A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J14A-E3/61 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 SMA5J14A-E3/61?
For technical support, including SMA5J14A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J14A-E3/61 requirements.
6.How does Aetrix verify that SMA5J14A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J14A-E3/61 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 SMA5J14A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J14A-E3/61?
All SMA5J14A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J14A-E3/61, 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 SMA5J14A-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J14A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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