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Taiwan Semiconductor Corporation SA150C
- Part No.:
- SA150C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA150C.pdf
- Description:
- 500W, 185.5V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,201
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Product details
Overview
SA150C from Taiwan Semiconductor is a unidirectional 500W transient voltage suppressor (TVS) diode with 150V working stand-off voltage, 167–204V breakdown voltage at 1mA test current, and 268V maximum clamping voltage at 1.9A peak pulse current; it protects automotive and industrial power rails against ESD and inductive switching transients. The device uses DO-204AC (DO-15) package and meets AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SA150C datasheet, SA150C pinout, SA150C application, or SA150C equivalent, key selection criteria include clamping voltage margin versus system rail tolerance, junction temperature derating above 25°C, unidirectional polarity marking, and compatibility with 10/1000μs surge waveforms in lighting ballasts and motor control circuits.
Technical Context
The SA150C operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its VBR range (167–204V), then clamping transient energy to ≤268V at 1.9A. Its low leakage (<1μA at 150V) ensures minimal standby power loss in high-impedance sensing nodes.
Designed for non-repetitive 10/1000μs surges, it delivers 500W peak pulse power at 25°C with thermal derating above ambient-junction temperature must remain ≤175°C under sustained surge duty cycles per Fig.2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR @ IT=1mA | 167–204 V - Breakdown voltage range defining turn-on threshold under standardized test condition |
| VC @ IPPM=1.9A | 268 V - Clamped voltage during 10/1000μs surge, limiting downstream IC stress |
| PPK | 500 W - Peak surge power handling capability at TA=25°C, derated linearly above ambient |
| TJ max | 175 °C - Absolute maximum junction temperature; dictates heatsinking requirements in high-power layouts |
| IR @ VWM | <1 μA - Reverse leakage ensuring negligible quiescent current in battery-powered systems |
| Package | DO-204AC (DO-15) - Standard axial-leaded through-hole package with tin-plated leads per J-STD-002 |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking polarity. Leads are pure tin-plated, solderable per J-STD-002; weight ≈0.400g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or low-side return path in unidirectional TVS configuration |
| Cathode | Reverse-biased surge clamp terminal | Connected to protected line (e.g., 12V/24V rail); marked by band on body |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Fast response time | <1.0 ps from 0 V to VBR enables protection of nanosecond-scale ESD events |
| Low impedance surge resistance | Enables efficient energy shunting without excessive voltage overshoot during fast transients |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally constrained designs |
| UL 94V-0 molding compound | Ensures flame-retardant housing integrity under fault-induced thermal stress |
Applications
| Automotive Lighting Systems | Industrial Motor Drives |
|---|---|
Use Scenario: Protecting LED driver ICs from load-dump transients in 12V/24V vehicle lighting modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and ground to clamp voltage spikes up to 120V during alternator load dump. Use Value: Limits clamped voltage to 268V while absorbing 500W surge, preventing damage to buck controllers rated for ≤40V input. | Use Scenario: Safeguarding gate drivers and microcontrollers in BLDC motor inverters exposed to inductive kickback. IC Role / Device Role / Timing Role: Mounted across DC bus rails to suppress flyback voltages generated during MOSFET turn-off. Use Value: Responds in <1ps to clamp 10/1000μs transients, reducing risk of gate oxide rupture in 600V SiC drivers. |
| Smart Building Power Supplies | Telecom Power Interfaces |
Use Scenario: Securing AC-DC adapter outputs against lightning-induced surges entering via PoE or mains lines. IC Role / Device Role / Timing Role: Secondary-side TVS on regulated 12V/24V output rails to absorb residual transients escaping primary-side MOVs. Use Value: Maintains <1μA leakage at 150V, avoiding regulation drift in precision feedback loops. | Use Scenario: Protecting Ethernet PHY interfaces and PMICs in outdoor base station power inputs. IC Role / Device Role / Timing Role: Unidirectional clamp on +48V bias rail to suppress EFT bursts per IEC 61000-4-4 Level 4. Use Value: Delivers 268V clamping at 1.9A, meeting telecom immunity specs without requiring additional 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 |
|---|---|---|---|
| Littelfuse SMAJ150A | Same DO-214AC package; 150V VWM, 243V [email protected]; slightly lower clamping voltage but higher IR (5μA) | Preferred where tighter clamping margin is critical and higher leakage is acceptable | Select SMAJ150A if board space allows SMD and clamping voltage must be minimized below 250V |
| ON Semiconductor 1.5SMC150A | DO-214AB package; identical VWM/VBR/VC specs; 1.5kW rating but same 500W 10/1000μs performance | Suitable for higher-volume SMT production; requires rework of footprint and stencil | Choose 1.5SMC150A when migrating to surface-mount and needing full 1.5kW short-duration surge headroom |
Compared with SMAJ150A and 1.5SMC150A, the SA150C offers through-hole DO-15 mounting, AEC-Q101 qualification out-of-box, and sub-1μA leakage-making it optimal for automotive repair modules and legacy industrial controls where leaded assembly and ultra-low standby current are mandatory.
Availability
SA150C is available at Aetrix Electronics and suitable for automotive lighting systems, industrial motor drives, smart building power supplies, and telecom power interfaces requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SA150C 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 Company (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The SA Series TVS diodes were engineered specifically for robust transient immunity in harsh environments-emphasizing AEC-Q101 compliance, tight VBR tolerances, and stable clamping under repeated surge stress.
FAQ
What is the breakdown voltage range of the SA150C?
The SA150C has a specified breakdown voltage (VBR) range of 167 V to 204 V at a 1 mA test current (IT), measured per ANSI/IEEE C62.35. This range reflects manufacturing tolerance and ensures reliable triggering above the 150 V working stand-off voltage while maintaining margin against false triggering during normal operation.
Is the SA150C suitable for automotive applications?
Yes, the SA150C is AEC-Q101 qualified, confirming its suitability for automotive applications such as engine control units, body electronics, and lighting systems. It operates across –55°C to +175°C junction temperature range and meets stringent reliability requirements including whisker resistance and flammability (UL 94V-0).
What does the "C" suffix indicate in SA150C?
The "C" suffix in SA150C denotes the standard unidirectional configuration with cathode-band polarity marking. It distinguishes the part from bidirectional variants (e.g., SA150CA) and confirms compliance with DO-204AC (DO-15) mechanical dimensions and lead finish specifications.
How does the SA150C perform under repeated surge conditions?
The SA150C is rated for non-repetitive 10/1000μs surges per Fig.3. For repetitive events, derating per Fig.2 is required: peak pulse power drops to ~350W at 75°C ambient and ~200W at 125°C. Sustained repetition requires thermal analysis to avoid exceeding TJ(max) = 175°C.
Can the SA150C replace the SA150A in a design?
No-the SA150C and SA150A differ in breakdown voltage: SA150C is 167–204V, while SA150A is 167–185V. Using SA150C instead of SA150A may increase clamping voltage margin but risks delayed triggering in low-overvoltage scenarios; validation against system surge profile is essential before substitution.
SA150C 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):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 268V
- Current - Peak Pulse (10/1000µs):
- 1.9A
- 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)
SA150C FAQ
1.How can I place an order for SA150C through Aetrix?
Please submit a Request for Quotation (RFQ) for SA150C 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 SA150C reliable?
The price and inventory of SA150C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA150C is usually 5 days.
3.What payment methods are accepted for SA150C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA150C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA150C?
SA150C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA150C 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 SA150C?
For technical support, including SA150C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA150C requirements.
6.How does Aetrix verify that SA150C is sourced from the original manufacturer or authorized distributors?
All SA150C 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 SA150C meets industry standards.
7.What is the process for return or replacement of SA150C?
All SA150C units undergo pre-shipment inspection (PSI). If there is an issue with SA150C, 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 SA150C part is unused and in its original packaging.
Return procedure for SA150C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA150C Tags
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