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Vishay General Semiconductor - Diodes Division SA9.0AHE3/54
- Part No.:
- SA9.0AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA9.0AHE3/54.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,106
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Product details
Overview
SA9.0AHE3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in DO-15 package, designed for primary overvoltage protection of DC power rails and signal lines. It features 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1.0 mA test current, 15.4 V clamping voltage (VC) at 5.0 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform - used in automotive ECU power inputs and industrial sensor interfaces.
For engineers reviewing the SA9.0AHE3/54 datasheet, SA9.0AHE3/54 pinout, SA9.0AHE3/54 application, or SA9.0AHE3/54 equivalent, this AEC-Q101 qualified TVS provides validated surge immunity for 12 V automotive systems, meets UL 94 V-0 flammability, and supports high-reliability designs requiring low-leakage (<5.0 μA at VWM) and fast response time under lightning-induced transients.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to limit transient energy across protected circuitry. Its glass-passivated junction ensures stable leakage and low incremental surge resistance (typical <0.3 Ω), enabling effective suppression of 8/20 μs and 10/1000 μs surges without thermal runaway.
The device is rated for continuous power dissipation of 3.0 W on infinite heatsink at TL = 75 °C, with maximum junction temperature of +175 °C and operating range from –55 °C to +175 °C. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse working voltage before clamping begins; sets safe DC operating margin for 12 V nominal systems. |
| VBR (min/max) | 10.0 V / 11.1 V at IT = 1.0 mA - Confirmed avalanche onset range; ensures reliable triggering above system noise but below IC absolute max ratings. |
| VC @ IPPM | 15.4 V at 5.0 A - Clamped voltage during 10/1000 μs surge; limits stress on downstream 16 V-rated regulators or microcontrollers. |
| IPPM | 5.0 A - Peak pulse current capability under standard 10/1000 μs waveform; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) compliance. |
| PPPM | 500 W - Peak pulse power handling; enables robust protection against repetitive switching transients in motor drive power supplies. |
| ID @ VWM | <5.0 μA - Reverse leakage at rated stand-off; minimizes quiescent power loss in battery-powered sensor nodes. |
| TJ max | +175 °C - Maximum junction temperature; supports under-hood automotive placement with minimal derating. |
Pinout & Package
Package: DO-15 (DO-204AC) - axial leaded, molded epoxy case with UL 94 V-0 rating; 0.130–0.138 inch (3.3–3.5 mm) diameter, 1.0 inch (25.4 mm) minimum body length; color band denotes cathode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to ground or low-side return; conducts during forward surge events (e.g., reverse polarity connection). |
| Cathode (banded end) | Reverse-biased clamping node | Connected to protected line (e.g., 12 V rail); avalanches into conduction when transient exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and low leakage drift over temperature and lifetime - critical for long-term automotive reliability. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade stress testing including temperature cycling, HTRB, and ESD - required for engine control and ADAS modules. |
| 500 W peak pulse power (10/1000 μs) | Handles repeated load-dump transients per ISO 7637-2 Pulse 5a without degradation - supports 12 V vehicle electrical systems. |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes overvoltage overshoot during clamping - protects 16 V absolute-maximum-rated components like CAN transceivers. |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed enclosures - satisfies safety requirements for industrial PLC backplanes and EV charging controllers. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
|
Use Scenario: Protecting 12 V supply input of engine control unit (ECU) against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VIN and GND, triggered within <1 ns to clamp spikes up to 40 V. Use Value: Limits voltage seen by downstream LDOs and MCU to ≤15.4 V, preventing latch-up and permanent damage per ISO 16750-2. |
Use Scenario: Shielding analog output (0–10 V) of pressure sensor from ESD and inductive kickback in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector interface, clamping transients before reaching op-amp input stage. Use Value: Maintains signal integrity with <5.0 μA leakage at 9.0 V, avoiding DC offset errors while suppressing ±8 kV contact ESD (IEC 61000-4-2). |
| Telecom DC Power Rail Clamp | Consumer Device USB Port Surge Guard |
|
Use Scenario: Safeguarding 48 V PoE-powered switch port against lightning-induced surges on outdoor Ethernet runs. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC bus, coordinated with MOV and gas discharge tube in multi-stage protection. Use Value: Absorbs 500 W surge energy without failure, enabling compliance with ITU-T K.21 basic protection level for telecom infrastructure. |
Use Scenario: Adding secondary surge protection on VBUS line of USB-C port in portable speaker, supplementing internal controller protection. IC Role / Device Role / Timing Role: Fast-acting unidirectional clamp between VBUS and GND, activated before internal USB PHY reaches damage threshold. Use Value: Reduces risk of port disablement from hot-plug transients, with 15.4 V clamping ensuring USB 2.0 PHY (max 6.0 V) remains isolated via series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-E3/52 (Vishay) | Same VWM/VBR/VC specs but in SMA (DO-214AC) surface-mount package; 400 W PPPM vs. 500 W. | Preferred for space-constrained PCBs; lower thermal mass requires careful layout for surge energy dissipation. | Select SMAJ9.0A-E3/52 when board area is limited and peak surge duty cycle is low; verify thermal relief pad design per JEDEC Std. 51-14. |
| P6SMB9.0A (Littelfuse) | Identical VWM = 9.0 V, VBR = 10.0–11.1 V, VC = 15.4 V, PPPM = 600 W; DO-214AA package; no AEC-Q101 qualification. | Higher pulse power margin suits infrequent high-energy surges; lacks automotive qualification documentation. | Choose P6SMB9.0A for cost-sensitive industrial power supplies where AEC-Q101 is not mandated; confirm lifecycle support with distributor. |
Compared with SA9.0AHE3/54, SMAJ9.0A-E3/52 offers SMT compatibility at reduced pulse power, while P6SMB9.0A delivers higher surge margin without automotive validation - making SA9.0AHE3/54 the optimal choice for AEC-Q101–required 12 V automotive subsystems needing proven reliability and axial-leaded serviceability.
Availability
SA9.0AHE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power supply protection requiring stable component supply and long-term manufacturing continuity.
Supply support for SA9.0AHE3/54 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 protection devices with emphasis on reliability, efficiency, and application-specific performance.
The SAx.xA series is part of Vishay's TransZORB® TVS platform, engineered specifically for robust transient suppression in harsh environments - including automotive, industrial, and telecom infrastructure where surge immunity and long-term stability are non-negotiable.
FAQ
What is the maximum clamping voltage of the SA9.0AHE3/54 under a 10/1000 μs surge?
The SA9.0AHE3/54 has a maximum clamping voltage (VC) of 15.4 V at 5.0 A peak pulse current (IPPM) with a 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 circuitry during standardized surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is the SA9.0AHE3/54 qualified for automotive applications?
Yes, the SA9.0AHE3/54 is AEC-Q101 qualified, as confirmed by the HE3 suffix in its part number and explicitly stated in the "Notes" section of Vishay document 88378. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD, making SA9.0AHE3/54 suitable for under-hood and chassis-mounted automotive electronics such as body control modules and ADAS sensors.
What does the 'HE3' suffix indicate in SA9.0AHE3/54?
The 'HE3' suffix in SA9.0AHE3/54 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Per Vishay's ordering information table, HE3 denotes both automotive qualification and enhanced plating reliability - distinguishing it from commercial-grade E3 variants and confirming suitability for mission-critical automotive and industrial deployments.
Can SA9.0AHE3/54 be used in bidirectional protection circuits?
No, SA9.0AHE3/54 is a unidirectional TVS diode, as indicated by the 'A' (not 'CA') suffix and its single-color-band marking. Bidirectional operation requires CA-suffixed parts like SA9.0CA. Using SA9.0AHE3/54 in bidirectional AC or data-line applications would result in forward conduction during negative half-cycles, potentially causing failure or incorrect clamping behavior.
What is the reverse leakage current of SA9.0AHE3/54 at its rated stand-off voltage?
The SA9.0AHE3/54 exhibits a maximum reverse leakage current (ID) of 5.0 μA at its rated stand-off voltage (VWM) of 9.0 V and TA = 25 °C, per the Electrical Characteristics table in Vishay document 88378. This low leakage ensures minimal power drain in always-on automotive modules and preserves accuracy in high-impedance sensor bias networks.
SA9.0AHE3/54 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 32.5A
- 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)
SA9.0AHE3/54 FAQ
1.How can I place an order for SA9.0AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA9.0AHE3/54 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 SA9.0AHE3/54 reliable?
The price and inventory of SA9.0AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA9.0AHE3/54 is usually 5 days.
3.What payment methods are accepted for SA9.0AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA9.0AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA9.0AHE3/54?
SA9.0AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA9.0AHE3/54 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 SA9.0AHE3/54?
For technical support, including SA9.0AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA9.0AHE3/54 requirements.
6.How does Aetrix verify that SA9.0AHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA9.0AHE3/54 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 SA9.0AHE3/54 meets industry standards.
7.What is the process for return or replacement of SA9.0AHE3/54?
All SA9.0AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA9.0AHE3/54, 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 SA9.0AHE3/54 part is unused and in its original packaging.
Return procedure for SA9.0AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA9.0AHE3/54 Tags
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