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Vishay General Semiconductor - Diodes Division SA9.0C-E3/73
- Part No.:
- SA9.0C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA9.0C-E3/73.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,141
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Product details
Overview
SA9.0C-E3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1 mA, 15.4 V maximum clamping voltage (VC) at 32.5 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial control systems.
For engineers reviewing the SA9.0C-E3/73 datasheet, SA9.0C-E3/73 pinout, SA9.0C-E3/73 application, or SA9.0C-E3/73 equivalent, key selection criteria include bi-directional clamping capability, DO-204AC mechanical compatibility, AEC-Q101 qualification status, and thermal derating behavior above 25 °C ambient.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with identical VBR min/max (10.0–11.1 V), VC (15.4 V), and IPPM (32.5 A) specifications across reverse and forward conduction paths. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, critical for suppressing ESD and inductive switching spikes.
The device complies with AEC-Q101 stress testing for automotive-grade reliability and supports soldering per J-STD-002/JESD 22-B102. Its 175 °C maximum junction temperature and -55 °C to +175 °C operating range allow deployment in under-hood or industrial environments where thermal cycling is severe.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse voltage before clamping begins; defines safe operating margin below circuit supply or signal swing. |
| VBR (min/max) | 10.0 V / 11.1 V at 1 mA - precise breakdown threshold ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 15.4 V at 32.5 A - clamped voltage level protects downstream components rated for ≤15 V logic or analog rails. |
| PPPM | 500 W with 10/1000 μs waveform - sustains high-energy transients common in motor drives and relay switching. |
| ID @ VWM | 5.0 μA - ultra-low leakage preserves signal integrity and battery life in always-on sensor circuits. |
| TJ max. | 175 °C - enables use in high-temperature enclosures without thermal shutdown or parameter drift. |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package compatible with automated through-hole assembly and manual prototyping. |
Pinout & Package
SA9.0C-E3/73 is a two-terminal bi-directional TVS diode in DO-204AC (DO-15) package. No polarity marking is present; terminals are interchangeable and function identically in either orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve as bidirectional clamping nodes; no cathode band or polarity identification required. |
| Leads (matte tin plated) | PCB interface and thermal path | Solderable per J-STD-002; supports 275 °C dip soldering for 10 s; provides mechanical anchoring and limited heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 500 W peak pulse power | Handles repetitive 10/1000 μs surges up to 0.01% duty cycle - suitable for industrial I/O and CAN bus line protection. |
| AEC-Q101 qualified | Validated for automotive applications including body electronics and powertrain subsystems requiring extended reliability. |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter shift in harsh environments. |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial equipment and consumer appliances. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback sensors against inductive kickback from brushed DC motors. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across motor winding or H-bridge output. Use Value: Limits transient voltage to ≤15.4 V, preventing latch-up or oxide damage in 12 V-rated MOSFETs and op-amps. |
Use Scenario: Surge suppression on LIN bus lines and door module switch inputs exposed to load dump and ESD. IC Role / Device Role / Timing Role: Standoff protector between connector and microcontroller GPIO or transceiver input. Use Value: Withstands 500 W pulses while maintaining <5 μA leakage at 9 V, preserving low-power sleep mode integrity. |
| Consumer Appliance Sensor Interface | Telecom Power Supply Input |
|
Use Scenario: Shielding temperature and humidity sensor outputs from ESD events during handling or cable coupling. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp on differential analog signal pair (e.g., I²C or analog voltage). Use Value: Clamps sub-100 ns ESD pulses to safe levels without distorting millivolt-level sensor signals due to symmetrical low-VBR tolerance. |
Use Scenario: Primary-side transient suppression on 12 V DC input rails feeding telecom base station power modules. IC Role / Device Role / Timing Role: Front-end crowbar element absorbing lightning-induced surges before DC/DC converter input stage. Use Value: Delivers 32.5 A peak current handling with 15.4 V clamping, reducing stress on upstream fuses and downstream regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ9.0A | Uni-directional; 9.0 V VWM, 10.0–11.1 V VBR, same DO-214AC package but surface-mount. | Requires external polarity management; unsuitable for AC or floating lines without series diode. | Select when board space constraints favor SMD layout and circuit topology guarantees unidirectional bias. |
| ON Semiconductor 1.5KE9.1C | Same bi-directional function; 9.1 V VWM, 10.2–11.3 V VBR, higher 1500 W PPPM, larger DO-201AD package. | Higher energy rating suits infrequent but extreme surges (e.g., outdoor telecom); less suitable for high-density PCBs. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and thermal mass allows larger footprint. |
Compared with SMAJ9.0A and 1.5KE9.1C, SA9.0C-E3/73 offers AEC-Q101 qualification in a compact through-hole DO-204AC package with verified 500 W clamping performance - making it optimal for cost-sensitive, thermally constrained automotive and industrial designs requiring proven reliability and ease of manual rework.
Availability
SA9.0C-E3/73 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and consumer appliance sensor interface applications requiring stable component supply and long-term lifecycle support.
Supply support for SA9.0C-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 passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SAxxxC series delivers standardized bi-directional TVS protection targeting cost-effective, high-volume industrial and automotive systems where robustness against repetitive transients is essential.
FAQ
What is the clamping voltage of SA9.0C-E3/73 at its rated peak pulse current?
The SA9.0C-E3/73 has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current (IPPM) of 32.5 A using the standard 10/1000 μs waveform. This value is measured across both terminals under bi-directional conduction and ensures protected circuits remain within safe voltage limits during surge events. The SA9.0C-E3/73 maintains this clamping performance across its full operating temperature range.
Is SA9.0C-E3/73 RoHS compliant and halogen-free?
Yes, SA9.0C-E3/73 carries the "E3" suffix, indicating full compliance with RoHS Directive 2011/65/EU and adherence to JEDEC JS709A halogen-free standards. The molding compound meets UL 94 V-0 flammability rating, and matte tin-plated leads satisfy J-STD-002 solderability requirements. These certifications are documented in Vishay's material declarations for SA9.0C-E3/73.
Does SA9.0C-E3/73 have AEC-Q101 qualification?
Yes, SA9.0C-E3/73 is AEC-Q101 qualified, as confirmed in Vishay's official documentation (Document Number: 88378, Revision: 18-Sep-12). This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, validating SA9.0C-E3/73 for automotive applications such as body control modules and sensor interfaces where reliability under thermal and electrical stress is critical.
How does the bi-directional nature of SA9.0C-E3/73 affect its placement in circuit design?
The bi-directional architecture of SA9.0C-E3/73 eliminates polarity sensitivity, allowing direct placement across AC-coupled lines, transformer secondaries, or floating sensor outputs without regard to terminal orientation. Unlike uni-directional TVS diodes, SA9.0C-E3/73 requires no cathode marking or directional routing - simplifying layout and reducing risk of misassembly. This symmetry is intrinsic to SA9.0C-E3/73's internal structure and verified in its VBR and VC specifications for both polarities.
What is the maximum steady-state power dissipation for SA9.0C-E3/73?
The SA9.0C-E3/73 has a maximum steady-state power dissipation (PD) of 3.0 W when mounted on an infinite heatsink at a lead temperature (TL) of 75 °C, as defined in Figure 5 of its datasheet. This rating applies to continuous DC or low-frequency operation and must be derated linearly above 75 °C TL. For typical PCB mounting without heatsinking, practical continuous power handling is significantly lower - usually <0.5 W - and must be validated per actual thermal environment.
SA9.0C-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 29.6A
- 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)
SA9.0C-E3/73 FAQ
1.How can I place an order for SA9.0C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA9.0C-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 SA9.0C-E3/73 reliable?
The price and inventory of SA9.0C-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 SA9.0C-E3/73 is usually 5 days.
3.What payment methods are accepted for SA9.0C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA9.0C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA9.0C-E3/73?
SA9.0C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA9.0C-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 SA9.0C-E3/73?
For technical support, including SA9.0C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA9.0C-E3/73 requirements.
6.How does Aetrix verify that SA9.0C-E3/73 is sourced from the original manufacturer or authorized distributors?
All SA9.0C-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 SA9.0C-E3/73 meets industry standards.
7.What is the process for return or replacement of SA9.0C-E3/73?
All SA9.0C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA9.0C-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 SA9.0C-E3/73 part is unused and in its original packaging.
Return procedure for SA9.0C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA9.0C-E3/73 Tags
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