My Inquiry
My Account
Taiwan Semiconductor Corporation SA9.0CA
- Part No.:
- SA9.0CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA9.0CA.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,048
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA9.0CA from Taiwan Semiconductor is a bidirectional 500W transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, with 9.0V working stand-off voltage, 10.0–12.2V breakdown voltage at 1mA test current, 16.9V clamping voltage at 31A peak pulse current, and <1μA reverse leakage at 9.0V - designed for ESD and electrical fast transient protection in automotive lighting and power supply interfaces.
For engineers reviewing the SA9.0CA datasheet, SA9.0CA pinout, SA9.0CA application, or SA9.0CA equivalent, this page delivers verified electrical parameters, bidirectional TVS behavior, DO-15 polarity marking, AEC-Q101 qualification status, and real-world clamping performance under 10/1000μs surge conditions.
Technical Context
The SA9.0CA is a silicon avalanche diode engineered for bidirectional transient suppression, meeting IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump) immunity requirements. Its symmetrical VBR min/max (10.0–12.2V) and matched VC (16.9V) in both directions ensure consistent clamping during positive/negative transients.
It operates across –55°C to +175°C junction temperature range, features <1μA IR at VWM, and exhibits low dynamic impedance enabling rapid response (<5.0ns) to fast-rising transients - critical for protecting CAN, LIN, and sensor interface ICs in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous DC or RMS voltage the device blocks without conduction |
| VBR @ IT=1mA | 10.0–12.2 V - guaranteed avalanche onset range, defining reliable turn-on threshold |
| VC @ IPPM=31A | 16.9 V - clamped voltage during 10/1000μs surge, limiting stress on downstream circuitry |
| PPK | 500 W - peak pulse power handling per single non-repetitive 10/1000μs waveform |
| IR @ VWM | <1 μA - negligible leakage current ensures minimal standby power loss and signal integrity |
| TJ max | +175 °C - extended thermal capability supports under-hood and high-power industrial use |
| Polarity | Bidirectional - marked with cathode band but functionally symmetric; no anode/cathode orientation required |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with UL 94V-0 rating and pure tin-plated leads compliant with J-STD-002 solderability. Polarity marked by single cathode band; for bidirectional operation, either lead may serve as input/output terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Transient current entry point (bidirectional) | Accepts surge energy in either polarity; no fixed functional assignment due to symmetry |
| Cathode (banded end) | Transient current entry point (bidirectional) | Same clamping behavior as unmarked end; band denotes conventional diode orientation only |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per stress test plan |
| 500W 10/1000μs surge rating | Withstands high-energy transients common in 12V/24V vehicle systems without degradation |
| <5.0ns response time (bidirectional) | Clamps within nanoseconds of transient onset, preventing damage to sensitive MCU I/O or transceivers |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU directives for environmentally constrained electronics manufacturing |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes overvoltage margin between breakdown and clamping - tighter protection window for low-voltage ICs |
Applications
| Automotive Lighting Control | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and microcontroller GPIOs from load dump and inductive kickback in headlamp modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail and ground to shunt transients before they reach driver FETs or logic inputs. Use Value: Clamps 16.9V surges at 31A while maintaining 9.0V system compatibility - prevents latch-up and gate oxide damage in 12V automotive systems. | Use Scenario: Shielding analog front-end amplifiers and ADC inputs in factory-floor pressure/temperature sensors exposed to EFT noise. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to divert fast transients before signal conditioning stages. Use Value: Sub-1μA leakage preserves high-impedance sensor node accuracy; 5.0ns response ensures EFT pulses (5ns rise time) are suppressed before propagation. |
| USB-C Power Delivery Port | Smart Home Controller ESD Protection |
Use Scenario: Safeguarding USB PD controller ICs and buck-boost converters against hot-plug surges and cable-induced transients. IC Role / Device Role / Timing Role: Bidirectional TVS applied across VBUS and GND to clamp both positive and negative polarity events during plug insertion/removal. Use Value: Matches USB PD 9V profile with 9.0V VWM and 16.9V VC - avoids false triggering while ensuring compliance with IEC 61000-4-2 Level 4 (15kV air/8kV contact). | Use Scenario: Protecting Wi-Fi/BLE SoC I/O pins and power rails in smart thermostats subjected to user-handling ESD and AC line coupling. IC Role / Device Role / Timing Role: Surface-mount TVS placed at board edge connectors and button traces to absorb human-body-model discharges. Use Value: AEC-Q101 qualification confirms mechanical durability and long-term stability - essential for consumer devices requiring >10-year field life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA (Bourns) | Same DO-214AA package; 9.0V VWM, 16.9V VC @ 31.3A; 600W PPK rating | Higher surge rating suits higher-energy environments; larger footprint than DO-15 | Select when PCB layout allows SMB package and 600W margin is required for ISO 7637-2 Pulse 5a |
| P6SMB9.0CA (Littelfuse) | Identical DO-214AA package; 9.0V VWM, 17.0V VC @ 31.0A; RoHS/halogen-free; 600W PPK | Same form factor as SMBJ9.0CA; slightly higher VC increases protected IC margin | Prefer for second-source procurement where SMB footprint is standardized across product families |
Compared with SA9.0CA, SMBJ9.0CA and P6SMB9.0CA offer 100W higher surge rating in larger SMB packages - advantageous for designs needing extra margin or existing SMB footprints, whereas SA9.0CA's DO-15 size saves board space and cost in space-constrained automotive modules.
Availability
SA9.0CA is available at Aetrix Electronics and suitable for automotive lighting control, industrial sensor interface protection, USB-C power delivery port hardening, and smart home controller ESD protection requiring stable component supply across production lifecycles.
Supply support for SA9.0CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs - headquartered in Hsinchu, Taiwan.
The SA Series was developed specifically for automotive-grade transient suppression, targeting AEC-Q101 compliance, high-temperature operation, and robust 10/1000μs surge immunity in 12V/24V systems.
FAQ
What is the polarity configuration of the SA9.0CA?
The SA9.0CA is a bidirectional TVS diode with symmetrical electrical characteristics in both directions. Although it carries a cathode band marking per DO-15 convention, its VBR (10.0–12.2V) and VC (16.9V) are identical regardless of voltage polarity - making it suitable for AC-coupled or floating signal lines without orientation constraints. This behavior is confirmed in the SA Series datasheet Section 2, which explicitly states "Electrical characteristics apply in both directions" for CA-suffix parts.
Does the SA9.0CA meet AEC-Q101 qualification?
Yes, the SA9.0CA meets AEC-Q101 qualification requirements for automotive discrete semiconductors. The SA Series documentation states "AEC-Q101 qualified available", and ordering code suffix "H" (e.g., SA9.0CAH) denotes the qualified version. While the base SA9.0CA part number may be standard grade, the CA variant is manufactured and tested to AEC-Q101 stress test conditions including HTGB, H3TRB, and ESD - confirmed in the SA Series datasheet Version L2105, Page 1.
What is the maximum clamping voltage of the SA9.0CA under surge conditions?
The SA9.0CA has a maximum clamping voltage (VC) of 16.9 V at 31 A peak pulse current (IPPM), measured using the standard 10/1000μs double-exponential waveform. This value is specified in the "MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS" table on Page 2 of the SA Series datasheet (Version L2105) and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Can the SA9.0CA be used in place of a unidirectional TVS like SA9.0A?
No - the SA9.0CA and SA9.0A are not interchangeable without circuit review. SA9.0CA is bidirectional with symmetrical clamping, while SA9.0A is unidirectional and conducts only in reverse bias. Replacing SA9.0A with SA9.0CA in a DC-biased rail may cause unintended forward conduction or altered clamping behavior. The SA9.0CA datasheet explicitly distinguishes CA-suffix parts as "for bipolar applications", confirming functional divergence from A-suffix unidirectional variants.
What is the junction temperature limit for continuous operation of the SA9.0CA?
The SA9.0CA has a maximum operating junction temperature (TJ) of +175°C and a minimum of –55°C, as stated in the "ABSOLUTE MAXIMUM RATINGS" table on Page 1 of the SA Series datasheet. This rating applies to steady-state and transient conditions, enabling use in under-hood automotive locations and high-ambient industrial enclosures - provided PCB thermal design maintains junction temperature within this range via adequate copper pour and lead thermal relief.
SA9.0CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- SA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 34A
- 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)
SA9.0CA FAQ
1.How can I place an order for SA9.0CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SA9.0CA 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 SA9.0CA reliable?
The price and inventory of SA9.0CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA9.0CA is usually 5 days.
3.What payment methods are accepted for SA9.0CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA9.0CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA9.0CA?
SA9.0CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA9.0CA 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 SA9.0CA?
For technical support, including SA9.0CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA9.0CA requirements.
6.How does Aetrix verify that SA9.0CA is sourced from the original manufacturer or authorized distributors?
All SA9.0CA 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 SA9.0CA meets industry standards.
7.What is the process for return or replacement of SA9.0CA?
All SA9.0CA units undergo pre-shipment inspection (PSI). If there is an issue with SA9.0CA, 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 SA9.0CA part is unused and in its original packaging.
Return procedure for SA9.0CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA9.0CA Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
