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Vishay General Semiconductor - Diodes Division SA100HE3/73
- Part No.:
- SA100HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA100HE3/73.pdf
- Description:
- TVS DIODE 100VWM 179VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,231
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Product details
Overview
SA100HE3/73 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 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 use.
For engineers reviewing the SA100HE3/73 datasheet, SA100HE3/73 pinout, SA100HE3/73 application, or SA100HE3/73 equivalent, this part is selected for robust ESD and surge protection in automotive body control modules, industrial sensor interfaces, and 24 V DC power input stages where reliability under repetitive transients and high-temperature operation up to 175 °C is required.
Technical Context
The SA100HE3/73 operates as a uni-directional avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to transient events and low incremental surge resistance. Its clamping behavior is defined by a well-controlled VBR tolerance (±5 %) and temperature coefficient of +0.11 %/°C, ensuring stable protection threshold across operating temperatures.
Rated for 70 A non-repetitive forward surge current (IFSM, 10 ms half-sine), it supports high-energy load dump events in automotive 12 V/24 V systems. The device's 3.0 W steady-state power dissipation and UL 94 V-0 compliant epoxy package support long-term reliability in thermally constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 24 V nominal systems with 4× load dump margin. |
| VBR (min/max) | 111 V / 123 V at 1 mA - Tight 5 % tolerance ensures predictable turn-on during transients; critical for avoiding false triggering in noisy environments. |
| VC @ IPPM | 162 V at 3.1 A (10/1000 µs) - Clamping voltage limits downstream IC stress; enables protection of 100 V-rated MOSFETs and gate drivers. |
| PPPM | 500 W - Peak pulse power rating per single 10/1000 µs waveform; sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges. |
| IFSM | 70 A - 10 ms half-sine surge current capability; supports automotive load dump immunity without thermal runaway. |
| TJ max. | 175 °C - Maximum junction temperature; enables operation in engine bay or industrial enclosures without derating. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22-A114. |
Pinout & Package
Package: DO-204AC (DO-15), axial lead, molded epoxy case with matte tin-plated leads. Cathode indicated by color band on one end; polarity-critical for uni-directional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (banded end) | Ground reference terminal | Connected to system ground or low-side return path; must be low-inductance for effective clamping. |
| Cathode (non-banded end) | Protected line input | Connected to line being protected (e.g., 24 V rail or sensor output); clamps to anode when overvoltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable leakage performance (<1.0 µA at VWM) and long-term reliability under humidity and thermal cycling. |
| 500 W peak pulse power (10/1000 µs) | Supports repeated surge events without degradation; validated at 0.01 % duty cycle per JEDEC standards. |
| AEC-Q101 qualification | Meets automotive stress test requirements including HTGB, AC/DC life test, and mechanical shock-enabling use in BCM, lighting, and ADAS power domains. |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed industrial or automotive housings; meets safety compliance for Class II equipment. |
| Matte tin plating, J-STD-002 compliant | Ensures reliable solder wetting and intermetallic formation on PCBs; compatible with lead-free reflow profiles up to 260 °C. |
Applications
| Automotive Body Control Module (BCM) | Industrial 24 V Sensor Interface |
|---|---|
Use Scenario: Protecting microcontroller I/O and LIN bus transceivers from load dump and inductive switching spikes in door module PCBs. IC Role / Device Role: Primary TVS clamp on 12 V/24 V supply rail and LIN signal line. Use Value: Limits transient voltage to ≤162 V, preventing latch-up or gate oxide damage in 3.3 V/5 V logic and LIN PHY ICs. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input cards. IC Role / Device Role: Line-end protection on 4–20 mA loop-powered sensor outputs. Use Value: Maintains signal integrity by clamping ESD (IEC 61000-4-2 ±8 kV contact) without affecting 0.1 % FS accuracy. |
| Telecom Power Supply Input | Motor Drive Gate Driver Protection |
Use Scenario: Secondary overvoltage protection on -48 V DC telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role: Backup clamp after primary MOV stage, absorbing residual energy. Use Value: Provides precise 100 V clamping threshold with <1 ns response, reducing risk of cascaded failure in DC/DC converters. |
Use Scenario: Protecting high-side gate driver ICs (e.g., IR2110) from Miller-induced shoot-through during IGBT switching. IC Role / Device Role: Snubber-connected TVS across gate-to-source of power MOSFETs/IGBTs. Use Value: Clamps gate voltage spikes to <162 V, preventing unintended turn-on and short-circuit failure in motor inverters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/5A | Same DO-214AC (SMA) package; 100 V VWM, but lower PPPM = 400 W and higher VC = 165 V at 2.9 A. | Surface-mount only; unsuitable for through-hole designs or high-current radial layouts. | Select when board space is constrained and reflow assembly is used; verify layout thermal relief for 70 A surge. |
| 1.5KE100A | Higher PPPM = 1500 W, same VWM/VBR, but larger DO-204AL (DO-27) package and no AEC-Q101 qualification. | Used in industrial power supplies where automotive qualification is not required. | Choose for higher surge margin in non-automotive 24 V systems; requires larger PCB footprint and manual soldering validation. |
Compared with SMAJ100A-E3/5A and 1.5KE100A, the SA100HE3/73 uniquely combines AEC-Q101 qualification, DO-15 through-hole compatibility, and optimized 500 W/162 V clamping for cost-sensitive automotive and industrial designs requiring proven field reliability.
Availability
SA100HE3/73 is available at Aetrix Electronics and suitable for automotive body electronics, industrial 24 V sensor interfaces, and telecom power supply inputs requiring stable component supply, long lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for SA100HE3/73 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, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The SAxxA series is engineered specifically for robust transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where consistent clamping, thermal stability, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the SA100HE3/73 at its rated peak pulse current?
The SA100HE3/73 has a maximum clamping voltage (VC) of 162 V at 3.1 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 7 in the Vishay datasheet 88378 and defines the upper voltage limit imposed on protected circuits during surge events. Designers use this parameter to ensure downstream components remain within their absolute maximum ratings.
Is the SA100HE3/73 suitable for automotive applications?
Yes, the SA100HE3/73 is AEC-Q101 qualified and explicitly rated for automotive use per Vishay documentation. Its construction-including glass-passivated junction, matte tin-plated leads, UL 94 V-0 epoxy, and operation up to 175 °C-meets stringent automotive reliability requirements. It is commonly deployed in body control modules, lighting drivers, and infotainment power rails where load dump and ESD immunity are critical.
How does the SA100HE3/73 differ from bi-directional TVS diodes like SA100CA?
The SA100HE3/73 is a uni-directional TVS diode, meaning it conducts only in reverse bias above VBR and blocks forward current up to 3.5 V at 100 A. In contrast, SA100CA is bi-directional and symmetrical-clamping in both polarities. The SA100HE3/73 is used on DC rails with defined polarity (e.g., +24 V to GND), while SA100CA suits AC lines or bidirectional data buses like RS-485 where polarity reversal may occur.
What is the maximum steady-state power dissipation for the SA100HE3/73?
The SA100HE3/73 has a maximum steady-state power dissipation (PD) of 3.0 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C, as specified in the "Maximum Ratings" table of datasheet 88378. This rating applies to continuous DC leakage or low-frequency ripple conditions-not transient events-and must be derated linearly above 75 °C per the curve in Figure 5.
Does the SA100HE3/73 have RoHS and lead-free compliance?
Yes, the SA100HE3/73 carries the HE3 suffix, indicating RoHS-compliant construction per Directive 2011/65/EU and JESD201 Class 2 whisker resistance. The "E3" base designation confirms commercial-grade RoHS compliance, while "HE3" adds AEC-Q101 qualification and enhanced whisker testing-making it suitable for both automotive and industrial lead-free assembly processes.
SA100HE3/73 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA100HE3/73 FAQ
1.How can I place an order for SA100HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA100HE3/73 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 SA100HE3/73 reliable?
The price and inventory of SA100HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA100HE3/73 is usually 5 days.
3.What payment methods are accepted for SA100HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA100HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA100HE3/73?
SA100HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA100HE3/73 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 SA100HE3/73?
For technical support, including SA100HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA100HE3/73 requirements.
6.How does Aetrix verify that SA100HE3/73 is sourced from the original manufacturer or authorized distributors?
All SA100HE3/73 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 SA100HE3/73 meets industry standards.
7.What is the process for return or replacement of SA100HE3/73?
All SA100HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA100HE3/73, 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 SA100HE3/73 part is unused and in its original packaging.
Return procedure for SA100HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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