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Vishay General Semiconductor - Diodes Division SA100AHE3/54
- Part No.:
- SA100AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA100AHE3/54.pdf
- Description:
- TVS DIODE 100VWM 162VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,694
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Product details
Overview
SA100AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for clamping voltage transients on power and signal lines. It features 100 V standoff voltage (VWM), 111–123 V breakdown voltage (VBR), 162 V clamping voltage 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 SA100AHE3/54 datasheet, SA100AHE3/54 pinout, SA100AHE3/54 application, or SA100AHE3/54 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, thermal derating above 25 °C, unidirectional polarity with cathode band marking, and compatibility with J-STD-002 solderability and AEC-Q101 reliability requirements.
Technical Context
The SA100AHE3/54 operates as a silicon avalanche diode that enters breakdown when reverse voltage exceeds VBR, diverting transient energy to ground while limiting downstream voltage to ≤162 V. Its glass-passivated junction ensures stable leakage (<1.0 µA at 100 V) and fast response (<1 ns), critical for protecting MOSFET gates and microcontroller I/O pins.
Thermal design requires attention to steady-state power dissipation (3.0 W on infinite heatsink at TL = 75 °C) and pulse derating above 25 °C ambient per Fig. 2. The device supports surge currents up to 70 A (10 ms half-sine) and maintains clamping integrity across -55 °C to +175 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 111 V / 123 V at 1.0 mA - Ensures reliable turn-on margin above VWM with low parametric spread |
| VC @ IPPM | 162 V at 3.1 A - Limits protected circuit voltage during 10/1000 µs transient, enabling robust 24 V/48 V rail protection |
| PPPM | 500 W - Sustains high-energy surges common in automotive load-dump and inductive switching events |
| IFSM | 70 A - Withstands 10 ms half-sine surge without degradation, supporting motor driver and relay coil suppression |
| TJ max. | +175 °C - Enables placement near heat sources in engine control units and power converters |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
Pinout & Package
DO-15 (DO-204AC) molded epoxy package with matte tin-plated leads; cathode indicated by color band on one end. Leads are solderable per J-STD-002 and JESD 22-B102; HE3 suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side (e.g., ground or return line) in unidirectional TVS configuration |
| Cathode (banded end) | Reverse-biased clamping node | Connected to protected line (e.g., 24 V supply or CAN_H); conducts avalanche current during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) over lifetime and temperature |
| 500 W peak pulse power (10/1000 µs) | Meets ISO 7637-2 Pulse 5a load-dump immunity for 12 V automotive systems |
| AEC-Q101 qualification | Validates reliability for under-hood applications including ECU, body control modules, and ADAS sensors |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD >15 kV contact discharge) |
| Solder dip 275 °C max. (10 s) | Supports lead-free reflow and wave soldering without delamination or parameter shift |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppresses load-dump transients (up to 120 V, 400 ms) on 24 V battery-fed ECUs in commercial vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 24 V rail and chassis ground to clamp surges before they reach DC/DC converters and MCU power inputs. Use Value: Clamps peak voltage to ≤162 V at 3.1 A, preventing damage to 36 V-rated input stages and maintaining system uptime during alternator regulation faults. | Use Scenario: Protects analog output lines (4–20 mA) of pressure/temperature transmitters from field wiring-induced surges in factory automation. IC Role / Device Role / Timing Role: Placed across transmitter output terminals to shunt induced lightning-induced surges (IEC 61000-4-5 Level 3) to local ground. Use Value: Low clamping voltage (162 V) prevents op-amp saturation and preserves 16-bit DAC accuracy during 0.5–1 kV transients. |
| Motor Drive Gate Protection | Telecom Line Card Surge Suppression |
Use Scenario: Shields high-side N-channel MOSFET gates from Miller-induced voltage spikes during IGBT switching in HVAC inverters. IC Role / Device Role / Timing Role: Connected between gate and source to clamp dv/dt-induced overshoot exceeding gate oxide rating (±20 V). Use Value: Sub-1 ns response time limits gate voltage excursion to <16 V, avoiding irreversible gate oxide breakdown during 100 ns edge transitions. | Use Scenario: Safeguards Ethernet PHY interface ICs on DSLAM line cards against induced surges from nearby AC power crosstalk. IC Role / Device Role / Timing Role: Mounted on RJ-45 jack PCB to clamp common-mode transients on differential pairs before reaching magnetics and PHY IC. Use Value: 500 W pulse rating handles repeated 10/1000 µs surges up to 1 kV without parameter drift, ensuring >10-year field life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/52 | Same VWM (100 V), lower PPPM (400 W), SMA package (smaller footprint, lower thermal mass) | Preferred for space-constrained consumer IoT nodes where 400 W surge margin suffices | Select SMAJ100A-E3/52 only if board layout prohibits DO-15 height or thermal budget allows reduced pulse handling |
| 1.5KE100A | Same VWM (100 V), higher IFSM (100 A), larger DO-201 package, no AEC-Q101 qualification | Suitable for industrial UPS and power supplies requiring higher single-pulse robustness but no automotive qualification | Choose 1.5KE100A when AEC-Q101 is not required and 100 A surge capability is needed for legacy 1.5 kW rectifier designs |
Compared with SMAJ100A-E3/52 and 1.5KE100A, SA100AHE3/54 uniquely combines AEC-Q101 qualification, DO-15 mechanical robustness, and 500 W pulse rating-making it the only option qualified for automotive power distribution modules where both reliability and surge margin are non-negotiable.
Availability
SA100AHE3/54 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom line card surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SA100AHE3/54 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 automotive-grade qualification.
The SAxxA series delivers standardized TVS protection across 5.0–170 V VWM range, engineered specifically for cost-sensitive yet mission-critical transient suppression in automotive, industrial, and communications infrastructure.
FAQ
What is the maximum clamping voltage of SA100AHE3/54 under standard test conditions?
The SA100AHE3/54 has a maximum clamping voltage (VC) of 162 V at 3.1 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuits during surge events. The SA100AHE3/54 maintains this clamping performance across its full operating temperature range (-55 °C to +175 °C), making it suitable for under-hood automotive deployment where thermal stability is critical.
Is SA100AHE3/54 suitable for bidirectional transient suppression?
No, SA100AHE3/54 is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA"). It conducts only in reverse bias to clamp positive transients on a referenced line-cathode must be connected to the protected node, anode to ground. For bidirectional protection (e.g., data lines or AC inputs), SA100CA variants exist. Using SA100AHE3/54 in bidirectional configurations risks forward conduction during negative excursions and invalidates its specified clamping behavior.
Does SA100AHE3/54 meet automotive reliability standards?
Yes, SA100AHE3/54 carries the HE3 suffix, which explicitly denotes AEC-Q101 qualification per Vishay's ordering nomenclature. This includes validation across high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling, and unbiased highly accelerated stress testing (uHAST). The SA100AHE3/54 is approved for use in engine control units, body electronics, and ADAS subsystems where failure modes must be excluded per ISO 26262 ASIL-B readiness.
What is the standoff voltage rating of SA100AHE3/54, and how does it relate to system operating voltage?
The SA100AHE3/54 has a standoff voltage (VWM) of 100 V, meaning it remains non-conductive up to this DC or RMS voltage level. For reliable operation, system nominal voltage must be ≤80 % of VWM-so SA100AHE3/54 is intended for 24 V or 48 V systems with transient margins, not for 100 V bus applications. Exceeding VWM risks increased leakage (>1.0 µA) and premature aging; the SA100AHE3/54 is therefore deployed on 24 V rails where worst-case transients reach ~120 V.
Can SA100AHE3/54 be used in surface-mount designs?
No, SA100AHE3/54 uses the axial DO-15 (DO-204AC) through-hole package and is not compatible with SMT assembly. Its leaded construction requires wave soldering or hand soldering; the "54" in the part number refers to the 13-inch paper tape and reel packaging format-not a surface-mount variant. For SMT equivalents, consider SMAJ100A-E3/52 (SMA) or SMCJ100A-E3/57 (SMC), which share the same electrical specs but differ in thermal profile and mounting method.
SA100AHE3/54 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 3.1A
- 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)
SA100AHE3/54 FAQ
1.How can I place an order for SA100AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA100AHE3/54 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 SA100AHE3/54 reliable?
The price and inventory of SA100AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA100AHE3/54 is usually 5 days.
3.What payment methods are accepted for SA100AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA100AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA100AHE3/54?
SA100AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA100AHE3/54 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 SA100AHE3/54?
For technical support, including SA100AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA100AHE3/54 requirements.
6.How does Aetrix verify that SA100AHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA100AHE3/54 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 SA100AHE3/54 meets industry standards.
7.What is the process for return or replacement of SA100AHE3/54?
All SA100AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA100AHE3/54, 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 SA100AHE3/54 part is unused and in its original packaging.
Return procedure for SA100AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA100AHE3/54 Tags
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