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Vishay General Semiconductor - Diodes Division SA16-E3/54
- Part No.:
- SA16-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA16-E3/54.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,608
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Product details
Overview
SA16-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on power and signal lines. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1 mA, 500 W peak pulse power (10/1000 μs), 26.0 V maximum clamping voltage (VC) at 19.2 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SA16-E3/54 datasheet, SA16-E3/54 pinout, SA16-E3/54 application, or SA16-E3/54 equivalent, this device serves as a robust, RoHS-compliant transient protection solution for 12 V automotive power rails, DC-DC converter inputs, and industrial sensor interfaces where fast response (<1 ps), low clamping ratio, and high surge current tolerance are required.
Technical Context
The SA16-E3/54 operates as a silicon avalanche diode with glass-passivated junction, enabling precise reverse-breakdown behavior and stable clamping under repetitive 10/1000 μs surges up to 500 W. Its unidirectional polarity-marked by a cathode band-ensures asymmetric conduction: low forward voltage (<3.5 V at 100 A) during fault conditions and sub-1.0 μA leakage at 16 V stand-off.
Thermal performance is defined by a 175 °C max junction temperature and 3.0 W steady-state power dissipation on infinite heatsink at TL = 75 °C. The device meets JESD 22-B106 solderability (275 °C, 10 s) and JESD 201 Class 1A whisker resistance, confirming suitability for automated assembly in high-reliability production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse voltage before clamping begins; sets operating margin for 12 V nominal systems. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1 mA - Tight tolerance ensures predictable turn-on across temperature and production lot. |
| VC (Clamping Voltage) | 26.0 V at 19.2 A (10/1000 μs) - Limits downstream voltage stress to safe levels during ESD or load-dump events. |
| PPPM (Peak Pulse Power) | 500 W - Sustains standardized lightning/surge immunity per IEC 61000-4-5 (Level 4) without degradation. |
| IPPM (Peak Pulse Current) | 19.2 A - Withstands 10/1000 μs transients common in automotive ISO 7637-2 Pulse 1 & 2a testing. |
| TJmax | 175 °C - Enables operation in under-hood environments and high-power-density PCB layouts. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating. Matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward conduction terminal | Connects to lower-potential side of protected line; conducts during positive overvoltage or reverse-biased surge. |
| Cathode (banded end) | Reverse-breakdown terminal | Connected to higher-potential rail (e.g., +12 V); initiates clamping when reverse voltage exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and low parameter drift over 1000+ surge cycles and 15-year service life. |
| 500 W peak pulse power (10/1000 μs) | Provides margin against ISO 7637-2 Pulse 5a (load dump) in 12 V vehicle systems without derating. |
| Clamping ratio (VC/VBR) ≈ 1.4 | Minimizes voltage overshoot during fast transients-critical for protecting 20 V-rated MOSFETs and LDOs. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body control, and ADAS modules without additional qualification effort. |
| RoHS-compliant E3 suffix | Meets EU Directive 2011/65/EU and JEDEC JS709A halogen-free requirements for green manufacturing. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a, up to 60 V/100 ms). IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges before they reach DC-DC converters. Use Value: Limits peak voltage to ≤26.0 V, preventing damage to 36 V-input buck controllers and ensuring uninterrupted microcontroller operation. |
Use Scenario: Shielding 4–20 mA current-loop sensor outputs from ESD (IEC 61000-4-2 ±8 kV contact) and inductive switching noise in factory automation. IC Role / Device Role / Timing Role: TVS mounted at connector entry point, shunting transients to ground before signal conditioning op-amps. Use Value: Sub-1 ns response time and <1.0 μA leakage preserve loop accuracy while surviving >1000 ESD strikes without parameter shift. |
| DC-DC Converter Input Protection | Consumer Power Adapter Surge Clamping |
Use Scenario: Safeguarding 24 V input stage of isolated flyback converters used in PoE-powered equipment against AC line surges coupled via shared supply. IC Role / Device Role / Timing Role: Primary-side TVS connected anode-to-ground, cathode-to-input rail to absorb differential-mode transients. Use Value: 500 W rating handles 1.2/50 μs surges up to 1.5 kV without thermal runaway, maintaining converter startup integrity. |
Use Scenario: Adding secondary-side transient protection to universal-input AC/DC adapters (e.g., 5–24 V output) exposed to lightning-induced surges on USB or barrel-jack outputs. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed between output rail and ground to suppress fast-rising spikes without affecting regulation bandwidth. Use Value: 26.0 V clamping ensures connected devices (e.g., IoT hubs) remain within absolute maximum ratings during EN 61000-4-5 testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/5T | Same DO-214AC (SMA) package; 16 V VWM, but lower PPPM (400 W) and higher VC (28.5 V at 14.3 A). | Surface-mount only; unsuitable for through-hole designs or high-temperature leaded assemblies. | Select SMAJ16A-E3/5T only when board space is constrained and 400 W surge margin suffices. |
| 1.5KE16A | DO-201AD package; identical VWM/VBR specs but higher PPPM (1500 W) and larger footprint; no AEC-Q101 qualification. | Higher power handling supports harsher surge environments (e.g., railway), but lacks automotive process validation. | Choose 1.5KE16A for non-automotive industrial use requiring >500 W headroom and legacy through-hole compatibility. |
Compared with SMAJ16A-E3/5T and 1.5KE16A, SA16-E3/54 uniquely balances AEC-Q101 compliance, DO-15 through-hole manufacturability, and 500 W surge capability-making it the preferred choice for cost-sensitive, high-volume automotive and industrial power protection where qualification traceability and assembly flexibility are mandatory.
Availability
SA16-E3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer power adapter designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for SA16-E3/54 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 passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SAxxA series is engineered for robust transient suppression in automotive and industrial power systems, delivering consistent clamping performance across temperature and lifetime under real-world surge stress.
FAQ
What is the maximum clamping voltage of SA16-E3/54 under standard surge conditions?
The SA16-E3/54 exhibits a maximum clamping voltage (VC) of 26.0 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 19.2 A. This value is measured per Figure 7 in the Vishay datasheet 88378 and defines the upper voltage limit imposed on protected circuitry during transient events. Maintaining VC ≤26.0 V ensures compatibility with 30 V-rated downstream components such as gate drivers and voltage regulators.
Is SA16-E3/54 qualified for automotive applications?
Yes, SA16-E3/54 carries the E3 suffix indicating RoHS compliance and commercial grade, but the HE3 variant (e.g., SA16HE3/54) is explicitly AEC-Q101 qualified. While SA16-E3/54 shares identical electrical and mechanical specifications, only SA16HE3/54 has undergone full AEC-Q101 stress testing. For automotive production, SA16HE3/54 is the designated qualified part; SA16-E3/54 is suitable for industrial and consumer applications.
What does the "/54" in SA16-E3/54 signify?
The "/54" in SA16-E3/54 denotes the preferred package code per Vishay's ordering nomenclature, specifying 13-inch diameter paper tape and reel packaging with a base quantity of 4000 units. This format enables automated pick-and-place assembly and aligns with industry-standard reel logistics for high-volume manufacturing. The "54" code is distinct from the device's electrical or thermal characteristics.
Can SA16-E3/54 be used in bi-directional protection circuits?
No, SA16-E3/54 is a unidirectional TVS diode, identifiable by its cathode band marking and specified parameters (e.g., VF = 3.5 V at 100 A). Bi-directional variants in the same family use the "CA" suffix (e.g., SA16CA). Using SA16-E3/54 in bi-directional applications would leave the forward direction unprotected against negative transients, risking failure. Always select SA16CA for symmetrical surge suppression.
What is the thermal resistance junction-to-lead (RθJL) for SA16-E3/54?
Vishay does not publish RθJL for the SA16-E3/54 in datasheet 88378. Instead, thermal performance is characterized via the steady-state power derating curve (Figure 5), which specifies 3.0 W dissipation at TL = 75 °C on an infinite heatsink. For layout design, engineers should follow recommended lead length (0.375 inch / 9.5 mm) and pad geometry per DO-204AC mechanical drawings to achieve specified thermal limits without relying on RθJL values.
SA16-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- 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):
- 17.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA16-E3/54 FAQ
1.How can I place an order for SA16-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA16-E3/54 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 SA16-E3/54 reliable?
The price and inventory of SA16-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA16-E3/54 is usually 5 days.
3.What payment methods are accepted for SA16-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA16-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA16-E3/54?
SA16-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA16-E3/54 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 SA16-E3/54?
For technical support, including SA16-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA16-E3/54 requirements.
6.How does Aetrix verify that SA16-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA16-E3/54 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 SA16-E3/54 meets industry standards.
7.What is the process for return or replacement of SA16-E3/54?
All SA16-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA16-E3/54, 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 SA16-E3/54 part is unused and in its original packaging.
Return procedure for SA16-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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