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Taiwan Semiconductor Corporation SA60CH
- Part No.:
- SA60CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA60CH.pdf
- Description:
- 500W, 74.1V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:7,583
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Product details
Overview
SA60CH from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 500W peak pulse power at 10/1000μs, 60V working stand-off voltage (VWM), 66.7–81.5V breakdown voltage (VBR @ 1mA), and 107V maximum clamping voltage (VC @ 4.9A). It protects automotive-grade power rails and signal lines against ESD, EFT, and inductive switching transients.
For engineers reviewing the SA60CH datasheet, SA60CH pinout, SA60CH application, or SA60CH equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, clamping performance under standardized surge waveforms, thermal derating behavior, and direct alternatives with documented VWM/VC/IPPM trade-offs.
Technical Context
The SA60CH operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its specified VBR range (66.7–81.5V) and clamping transients to ≤107V at 4.9A peak pulse current. Its low leakage (<1μA @ 60V) ensures minimal standby power loss in always-on circuits.
Designed per ANSI/IEEE C62.35, it sustains 500W non-repetitive surges at TA = 25°C with linear derating above that temperature, and supports 70A single half-sine forward surge (8.3ms) - critical for load-dump immunity in 12V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for 12V/24V rail protection. |
| VBR @ 1mA | 66.7–81.5 V - Measured breakdown voltage range at 1mA test current; ensures reliable turn-on within defined tolerance band. |
| VC @ IPPM | 107 V - Clamped voltage at 4.9A peak pulse current (10/1000μs); determines maximum stress imposed on downstream ICs during surge events. |
| PPK | 500 W - Peak pulse power rating per 10/1000μs waveform; quantifies transient energy absorption capability without failure. |
| TJ max | +175 °C - Maximum junction temperature; enables operation in under-hood automotive environments with high ambient thermal loads. |
| IR @ VWM | <1 μA - Reverse leakage current at 60V; guarantees negligible quiescent current draw in battery-powered or low-power monitoring circuits. |
| AEC-Q101 | Qualified - Certified for automotive electronic components per stress test requirements including HTOL, TCT, and ESD; supports PPAP documentation. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with UL 94V-0 flammability rating and pure tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or low-side return path; conducts during forward surge events (e.g., load dump). |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12V rail); avalanches into conduction when transient exceeds VBR, shunting energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use with HTOL, temperature cycling, and ESD testing - required for Tier-1 supply chain compliance. |
| Fast response time | <1.0 ps from 0 V to VBR - enables sub-nanosecond clamping onset, protecting high-speed CAN/LIN transceivers from ESD-induced latch-up. |
| Low clamping ratio (VC/VBR) | ~1.6× (107V / 66.7V min) - balances robust surge handling with tight voltage limiting to avoid overvoltage damage to 5V/3.3V logic interfaces. |
| Halogen-free construction | Complies with IEC 61249-2-21 - meets RoHS and automotive OEM environmental material declarations (IMDS, ELV). |
| High IPPM capability | 4.9 A peak pulse current - supports protection of 12V power nets subjected to ISO 7637-2 Pulse 1, 2a, 3a/b, and ISO 16750-2 load-dump surges. |
Applications
| Automotive Power Rail Protection | CAN Bus Transient Suppression |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs from load-dump transients (ISO 16750-2) and coupled noise during alternator regulation faults. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and chassis ground, acting as primary overvoltage clamp ahead of DC-DC converters and LDOs. Use Value: Limits transient voltage to ≤107V, preventing damage to 36V-rated input stages and enabling compliance with OEM surge immunity requirements. |
Use Scenario: Shielding high-speed CAN FD physical layer transceivers from ESD (IEC 61000-4-2 ±8kV contact) and EFT (IEC 61000-4-4 ±2kV). IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point, referenced to signal ground, suppressing fast-rising transients before they reach PHY pins. Use Value: Sub-1ps response ensures clamping initiates before CAN edge rates (~1ns rise time), preserving signal integrity and avoiding bit errors. |
| Industrial Sensor Interface Protection | LED Driver Output Clamp |
Use Scenario: Safeguarding 4–20mA current-loop sensors and analog front-ends in factory automation systems exposed to inductive switching noise from solenoids and relays. IC Role / Device Role / Timing Role: Unidirectional TVS connected across sensor supply terminals (V+ to GND), absorbing repetitive 500W surges induced by nearby relay coil de-energization. Use Value: With <1μA leakage at 60V, it avoids loading precision current sources while maintaining >1000-hour reliability under 85°C ambient conditions. |
Use Scenario: Preventing overvoltage failure in constant-current LED drivers during open-circuit or hot-plug events in architectural lighting systems. IC Role / Device Role / Timing Role: TVS placed across LED string output terminals, clamping flyback spikes generated by inductive energy storage in driver chokes. Use Value: 107V clamping voltage allows compatibility with 72V LED strings while surviving 500W worst-case transients without degradation. |
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 SMAJ60A | VWM = 60V, VC = 96.8V @ 5.4A, PPK = 400W, DO-214AC package | Lower clamping voltage but 100W less surge rating; surface-mount only | Preferred where PCB space is constrained and lower clamping priority outweighs reduced energy handling. |
| ON Semiconductor 1.5KE60CA | Bidirectional, VWM = 51.0V, VC = 87.1V @ 17.2A, PPK = 1500W, DO-201AD package | Higher surge capacity but bidirectional polarity and wider VWM tolerance; larger footprint | Used when bipolar transients (e.g., AC-coupled signals) require symmetrical clamping and higher energy margin is critical. |
Compared with SA60CH, SMAJ60A offers tighter clamping but sacrifices 20% surge energy handling and requires SMT rework; 1.5KE60CA delivers triple the peak power but introduces bidirectional behavior and incompatible polarity for unidirectional DC rail protection.
Availability
SA60CH is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, LED driver outputs, and CAN bus protection requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.
Supply support for SA60CH 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 for automotive, industrial, and consumer markets.
The SA Series was developed specifically for AEC-Q101-compliant transient suppression in harsh automotive environments, emphasizing low clamping ratio, fast response, and robust surge endurance in axial-leaded packages.
FAQ
What is the AEC-Q101 qualification status of the SA60CH?
The SA60CH is explicitly qualified to AEC-Q101 Rev D, covering stress tests including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD (HBM ≥8kV). This certification is documented in Taiwan Semiconductor's official qualification report L2105 and applies to all SAxH variants, confirming suitability for automotive powertrain and body electronics applications where reliability under thermal and electrical stress is mandatory. The SA60CH part number includes the "H" suffix denoting AEC-Q101 compliance.
How does the clamping voltage of SA60CH compare to its breakdown voltage?
The SA60CH has a minimum breakdown voltage (VBR) of 66.7V at 1mA and a maximum clamping voltage (VC) of 107V at 4.9A (10/1000μs waveform), yielding a clamping ratio of approximately 1.6×. This ratio reflects the device's ability to limit transient overvoltage while sustaining high surge currents - a key design parameter for ensuring protected ICs remain below their absolute maximum ratings. The ratio is consistent across production lots and validated per ANSI/IEEE C62.35 test methodology.
Can SA60CH be used in bidirectional signal line protection?
No, the SA60CH is a unidirectional TVS diode, indicated by the absence of "CA" or "C" suffix and confirmed by its asymmetric electrical characteristics: it specifies VBR only for reverse bias and includes a cathode band marking. For bidirectional protection (e.g., RS-485, USB D+/D−), a part such as SA60CA or SMAJ60CA must be selected. Using SA60CH on AC-coupled or differential lines risks forward conduction during negative transients and inadequate clamping.
What is the maximum steady-state power dissipation for SA60CH at board level?
The SA60CH has a steady-state power dissipation (PD) rating of 3W when mounted on 10 × 10 mm copper pads per lead at TL = 75°C, per the Absolute Maximum Ratings table. This value assumes optimal PCB thermal relief and is not interchangeable with its 500W peak pulse rating. In continuous DC operation, power dissipation is limited by reverse leakage (<1μA @ 60V), resulting in <60μW - making thermal design concerns relevant only during surge events, not steady-state bias.
Is SA60CH compatible with lead-free reflow soldering processes?
Yes, the SA60CH features pure tin-plated leads qualified per J-STD-002 for solderability and is rated for lead-free reflow profiles up to 260°C peak temperature (JEDEC J-STD-020). Its DO-204AC (DO-15) package withstands standard IPC-A-610 Class 2/3 thermal cycles without delamination or solder joint fracture, and its molding compound meets UL 94V-0 flammability requirements post-reflow.
SA60CH 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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 107V
- Current - Peak Pulse (10/1000µs):
- 4.9A
- 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)
SA60CH FAQ
1.How can I place an order for SA60CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SA60CH 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 SA60CH reliable?
The price and inventory of SA60CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA60CH is usually 5 days.
3.What payment methods are accepted for SA60CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA60CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA60CH?
SA60CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA60CH 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 SA60CH?
For technical support, including SA60CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA60CH requirements.
6.How does Aetrix verify that SA60CH is sourced from the original manufacturer or authorized distributors?
All SA60CH 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 SA60CH meets industry standards.
7.What is the process for return or replacement of SA60CH?
All SA60CH units undergo pre-shipment inspection (PSI). If there is an issue with SA60CH, 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 SA60CH part is unused and in its original packaging.
Return procedure for SA60CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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