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Vishay General Semiconductor - Diodes Division SMAJ16-E3/61
- Part No.:
- SMAJ16-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ16-E3/61.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,723
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Product details
Overview
SMAJ16-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on power and signal lines. It features a 16 V stand-off voltage (VWM), 28.8 V maximum clamping voltage (VC) at 13.9 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 µs waveform - suitable for protecting MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the SMAJ16-E3/61 datasheet, SMAJ16-E3/61 pinout, SMAJ16-E3/61 application, or SMAJ16-E3/61 equivalent, key selection criteria include its unidirectional polarity, 1.0 µA max reverse leakage at VWM, 150 °C junction temperature rating, RoHS-compliant matte tin plating, and MSL Level 1 moisture sensitivity per J-STD-020.
Technical Context
This TVS diode operates as a voltage-clamping protection device that remains high-impedance below 16 V and rapidly avalanches above its breakdown threshold (17.8–21.8 V at 1 mA test current) to divert surge energy. Its glass-passivated junction ensures stable performance under repetitive transient stress.
Designed for automated SMT placement, it delivers low incremental surge resistance and fast response time (<1 ps), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes on DC rails and low-speed signal paths without affecting normal circuit operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 16 V - Maximum continuous reverse operating voltage before clamping begins |
| Breakdown Voltage (VBR) | 17.8–21.8 V at 1 mA - Confirmed avalanche initiation range for reliable overvoltage triggering |
| Clamping Voltage (VC) | 28.8 V at 13.9 A - Peak voltage seen by protected circuit during 10/1000 µs surge |
| Peak Pulse Power (PPPM) | 400 W - Sustained surge dissipation capability on standard 5.0 × 5.0 mm copper pads |
| Reverse Leakage (ID) | ≤1.0 µA at 16 V - Negligible standby current draw in normal operation |
| Junction Temperature Range | −55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments |
| Package | DO-214AC (SMA) - Standardized surface-mount outline compatible with JEDEC MS-013AC footprint |
Pinout & Package
DO-214AC (SMA) package with two terminals: cathode marked by a band on the body; anode is unmarked end. Leads are matte tin plated, solderable per J-STD-002 and JESD22-B102, rated for 260 °C solder dip (40 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts avalanche current to ground or lower-potential rail during overvoltage |
| Anode (unmarked end) | Reference potential node | Typically tied to system ground or return path; completes clamping loop during transient event |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12–24 V systems |
| Low clamping ratio (VC/VWM = 1.8) | Minimizes stress on downstream components during clamping versus higher-ratio alternatives |
| MSL Level 1 rating | Allows unlimited floor life and reflow without baking, simplifying manufacturing logistics |
| Glass-passivated junction | Ensures long-term stability and low parameter drift across thermal cycling and humidity exposure |
| RoHS-compliant & JESD201 Class 1A whisker tested | Validated for commercial-grade reliability in consumer, industrial, and automotive applications |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs and LIN bus lines from load dump and alternator ripple transients. IC Role / Device Role: Unidirectional TVS placed between power rail and ground to clamp positive-going surges. Use Value: Limits voltage excursion to ≤28.8 V during 400 W surges, preventing damage to MCU power pins and transceiver ICs. |
Use Scenario: Safeguarding 24 V digital input channels from field-wiring induced surges and relay contact bounce. IC Role / Device Role: Standoff-rated clamping device on input side of optocoupler or Schmitt trigger interface. Use Value: Maintains <1 µA leakage at 24 V nominal, ensuring clean logic-level detection while suppressing >1 kV transients. |
| Consumer Appliance Motor Drive Board | Telecom Power Supply Front-End |
Use Scenario: Shielding microcontroller GPIOs and gate drivers from inductive kickback when driving BLDC fan motors. IC Role / Device Role: Localized TVS on motor driver enable and feedback lines near MOSFETs. Use Value: Fast response (<1 ps) and low VC prevent latch-up or gate oxide rupture in sensitive control ICs. |
Use Scenario: Secondary-side transient suppression on 48 V telecom rectifier outputs feeding PoE injectors. IC Role / Device Role: Unidirectional clamping element between output rail and chassis ground. Use Value: Withstands repetitive 300 W surges above 78 V and maintains thermal resistance of 30 °C/W to lead for stable power delivery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/61 | Lower breakdown range (17.8–19.7 V), tighter VBR tolerance; 26.0 V clamping at 15.4 A | Better suited for precision-clamp designs where lower VC margin is critical | Select SMAJ16A-E3/61 when tighter VBR distribution and reduced clamping voltage are required for margin-sensitive circuits. |
| SMBJ16A-E3/52 | Same VWM/VC specs but in larger DO-214AA (SMB) package; 600 W PPPM | Higher surge handling capacity; requires larger PCB footprint and different pad layout | Choose SMBJ16A-E3/52 only if system-level surge testing exceeds 400 W or thermal derating demands lower RθJA. |
Compared with SMAJ16-E3/61, the SMAJ16A-E3/61 offers improved clamping consistency at lower cost for tight-margin designs, while SMBJ16A-E3/52 trades compactness for higher surge endurance - making SMAJ16-E3/61 optimal for space-constrained 400 W-class protection.
Availability
SMAJ16-E3/61 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer appliance motor control requiring stable component supply, consistent parametric performance, and full traceability through Vishay's commercial-grade production line.
Supply support for SMAJ16-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, efficiency, and manufacturability.
The SMAJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh-environment applications including automotive, industrial automation, and telecom infrastructure.
FAQ
What is the polarity configuration of SMAJ16-E3/61?
SMAJ16-E3/61 is a unidirectional TVS diode, with the cathode identified by a visible band on the DO-214AC package body. This configuration allows it to conduct only during positive-going transients relative to its anode, making it ideal for DC power rail protection where reverse voltage blocking is required. The SMAJ16-E3/61 does not conduct in reverse bias under normal conditions, unlike bi-directional variants such as SMAJ16CA.
Does SMAJ16-E3/61 meet automotive qualification standards?
SMAJ16-E3/61 is RoHS-compliant and qualified to JESD201 Class 1A for whisker resistance, but it is not AEC-Q101 qualified. For automotive applications requiring AEC-Q101, the HE3-suffix variant (e.g., SMAJ16HE3/61) must be selected. The SMAJ16-E3/61 is rated for commercial-grade use and supports industrial and consumer automotive-adjacent systems where full AEC-Q101 is not mandated.
What is the maximum peak pulse current rating for SMAJ16-E3/61?
The maximum peak pulse current (IPPM) for SMAJ16-E3/61 is 13.9 A under the standard 10/1000 µs double-exponential waveform, measured with the device mounted on 0.2 × 0.2 inch (5.0 × 5.0 mm) copper pads per Figure 2 in Vishay document 88390. This value corresponds directly to its 400 W peak pulse power rating and 28.8 V clamping voltage specification.
Can SMAJ16-E3/61 be used in bi-directional protection circuits?
No - SMAJ16-E3/61 is strictly unidirectional and lacks symmetrical clamping behavior. For bi-directional transient suppression, the SMAJ16CA-E3/61 variant must be used, which provides identical VWM and VC ratings in both polarities. Using SMAJ16-E3/61 in a bi-directional configuration risks failure during negative-going transients due to lack of reverse avalanche capability.
What is the thermal resistance profile of SMAJ16-E3/61?
SMAJ16-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead resistance (RθJL) of 30 °C/W, measured under standard JEDEC test conditions. These values assume mounting on minimum recommended copper pad areas; actual thermal performance improves with larger copper pours or thermal vias, especially critical in high-duty-cycle surge environments.
SMAJ16-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 13.9A
- Power - Peak Pulse:
- 400W
- 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)
SMAJ16-E3/61 FAQ
1.How can I place an order for SMAJ16-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ16-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 SMAJ16-E3/61 reliable?
The price and inventory of SMAJ16-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 SMAJ16-E3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ16-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ16-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ16-E3/61?
SMAJ16-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ16-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 SMAJ16-E3/61?
For technical support, including SMAJ16-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ16-E3/61 requirements.
6.How does Aetrix verify that SMAJ16-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ16-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 SMAJ16-E3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ16-E3/61?
All SMAJ16-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ16-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 SMAJ16-E3/61 part is unused and in its original packaging.
Return procedure for SMAJ16-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ16-E3/61 Tags
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