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Vishay General Semiconductor - Diodes Division SA100-E3/73
- Part No.:
- SA100-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA100-E3/73.pdf
- Description:
- TVS DIODE 100VWM 179VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,230
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Product details
Overview
SA100-E3/73 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of DC power rails and signal lines. It features a 100 V stand-off voltage (VWM), 111–123 V breakdown voltage (VBR at 1 mA), 162 V maximum clamping voltage (VC) at 3.1 A peak pulse current, 500 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SA100-E3/73 datasheet, SA100-E3/73 pinout, SA100-E3/73 application, or SA100-E3/73 equivalent, this device is selected for robust ESD and surge protection in automotive body electronics, industrial sensor interfaces, and 24 V/48 V power supply input stages where fast response (<1 ns), low clamping ratio, and high surge current tolerance are critical.
Technical Context
The SA100-E3/73 operates as a uni-directional avalanche diode with glass-passivated junction, enabling sub-nanosecond response to transients. Its clamping behavior is defined by a 10/1000 µs waveform test condition, delivering 162 V clamping at 3.1 A IPPM while maintaining 1.0 µA max reverse leakage at 100 V.
Thermal performance is rated for -55 °C to +175 °C operating junction temperature, with steady-state power dissipation of 3.0 W on infinite heatsink at TL = 75 °C. It supports 70 A non-repetitive forward surge current (IFSM, 10 ms half-sine) and exhibits a +0.1 %/°C typical temperature coefficient of VBR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse working voltage before clamping begins; sets protection threshold for 24 V/48 V systems. |
| VBR (min/max) | 111 V / 123 V at 1 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction under normal operation. |
| VC @ IPPM | 162 V at 3.1 A - Clamping voltage limits downstream IC stress during 500 W transient events; clamping ratio = 1.62×VWM. |
| PPPM | 500 W - Peak pulse power handling per 10/1000 µs waveform; sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges. |
| IFSM | 70 A - Non-repetitive forward surge rating enables survival of high-energy inductive switch-off events in relay or solenoid drivers. |
| TJ max | +175 °C - High junction temperature rating supports under-hood automotive placement and extended thermal margin in enclosed enclosures. |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with matte tin-plated leads, RoHS-compliant (E3 suffix), UL 94 V-0 molding compound. |
Pinout & Package
DO-204AC (DO-15) package with axial leads; cathode indicated by color band on one end. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, qualified to JESD 201 Class 1A whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side connection | Connected to ground or lower-potential rail in uni-directional configuration; enables clamping when cathode voltage exceeds VBR. |
| Cathode | Reverse-biased terminal / protected line connection | Connected to the line being protected (e.g., 24 V supply); conducts avalanche current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress. |
| 500 W peak pulse power (10/1000 µs) | Supports high-energy transients common in automotive load-dump and industrial motor switching environments. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body control modules, and ADAS sensor interfaces. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, reducing voltage stress on downstream MOSFETs and ICs. |
| Solder dip 275 °C max., 10 s | Ensures compatibility with standard wave and reflow soldering processes without parametric shift or bond degradation. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping device placed at main power entry point, shunting surge energy to chassis ground. Use Value: Limits voltage seen by downstream DC/DC converters and microcontrollers to ≤162 V, preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Point-of-entry TVS on 4–20 mA or 0–10 V signal lines exposed to field wiring-induced transients. Use Value: Clamps induced surges within <1 ns while adding <0.5 pF capacitance, preserving signal integrity up to 1 MHz bandwidth. |
| Telecom DC Power Input Protection | Motor Drive Control Signal Protection |
Use Scenario: Securing 48 V PoE-powered equipment inputs against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage protector upstream of DC/DC isolation stage and hot-swap controller. Use Value: Absorbs 500 W pulses without degradation, maintaining VWM stability across 1000+ surge events per MIL-STD-883H Method 3015.8. |
Use Scenario: Shielding GPIO and enable lines of BLDC motor drivers from commutation noise and back-EMF coupling. IC Role / Device Role / Timing Role: Localized TVS on microcontroller-side control traces adjacent to high-di/dt power paths. Use Value: Prevents false triggering or reset due to 100 V/µs transients, with 1.0 µA leakage ensuring no impact on logic threshold margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A | Same VWM (100 V), but SMC (DO-214AB) surface-mount package; 1.5× higher thermal mass than DO-15; slightly lower VC (160 V). | Preferred for automated SMT assembly and higher board density; unsuitable for through-hole or high-vibration mechanical mounting. | Select SMAJ100A when PCB space is constrained and reflow compatibility is required; verify mechanical retention under shock/vibe specs. |
| 1.5KE100A | Higher PPPM (1500 W), same DO-204AC package; larger die size increases VC to 170 V and reduces response speed vs. SA100-E3/73. | Better suited for infrequent, high-energy surges (e.g., AC mains coupling); less optimal for repetitive automotive transients due to slower recovery. | Choose 1.5KE100A only if system-level testing confirms 170 V clamping is acceptable and surge duty cycle remains <0.001 %. |
Compared with SMAJ100A and 1.5KE100A, SA100-E3/73 delivers superior response time and tighter clamping for automotive and industrial control applications where consistent low VC and AEC-Q101 validation are mandatory - without requiring PCB redesign or sacrificing mechanical robustness.
Availability
SA100-E3/73 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and telecom DC power input protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SA100-E3/73 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, automotive qualification, and high-volume manufacturability.
The SAxxA series is part of Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be eliminated at the component level.
FAQ
What is the maximum clamping voltage of the SA100-E3/73 under standard test conditions?
The SA100-E3/73 has a maximum clamping voltage (VC) of 162 V when subjected to its rated peak pulse current of 3.1 A using the 10/1000 µs waveform. This value is measured per JEDEC standards and reflects worst-case voltage seen by protected circuitry during surge events, directly supporting design margin calculations for downstream ICs and MOSFETs.
Is the SA100-E3/73 suitable for automotive applications?
Yes, the SA100-E3/73 is AEC-Q101 qualified and explicitly rated for automotive use. Its DO-204AC package, -55 °C to +175 °C operating range, and validated surge performance per ISO 7637-2 make it appropriate for engine control units, body control modules, and ADAS sensor power rails - provided layout follows Vishay's recommended trace width and grounding practices.
Does the SA100-E3/73 have polarity marking, and how is it identified?
Yes, the SA100-E3/73 is a uni-directional TVS diode with a visible cathode band on the DO-204AC package body. The banded end is the cathode and must be connected to the line being protected (e.g., 24 V rail), while the unbanded end (anode) connects to ground or return path - reversing polarity prevents clamping function entirely.
What is the reverse leakage current specification for SA100-E3/73 at its rated stand-off voltage?
At VWM = 100 V and TA = 25 °C, the SA100-E3/73 exhibits a maximum reverse leakage current (ID) of 1.0 µA. This low leakage ensures minimal power loss and no interference with high-impedance sensing circuits or battery-backed systems where standby current is critical.
Can SA100-E3/73 be used in bi-directional protection configurations?
No, SA100-E3/73 is strictly a uni-directional TVS diode. For bi-directional protection, Vishay specifies the CA-suffix variant (e.g., SA100CA). Using SA100-E3/73 in reverse-biased mode beyond its specified VWM risks permanent junction damage; always match suffix (A vs. CA) to system polarity requirements.
SA100-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 179V
- Current - Peak Pulse (10/1000µs):
- 2.8A
- 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)
SA100-E3/73 FAQ
1.How can I place an order for SA100-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA100-E3/73 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 SA100-E3/73 reliable?
The price and inventory of SA100-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA100-E3/73 is usually 5 days.
3.What payment methods are accepted for SA100-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA100-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA100-E3/73?
SA100-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA100-E3/73 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 SA100-E3/73?
For technical support, including SA100-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA100-E3/73 requirements.
6.How does Aetrix verify that SA100-E3/73 is sourced from the original manufacturer or authorized distributors?
All SA100-E3/73 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 SA100-E3/73 meets industry standards.
7.What is the process for return or replacement of SA100-E3/73?
All SA100-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA100-E3/73, 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 SA100-E3/73 part is unused and in its original packaging.
Return procedure for SA100-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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