My Inquiry
My Account
Taiwan Semiconductor Corporation SA13CH
- Part No.:
- SA13CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA13CH.pdf
- Description:
- 500W, 16V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA13CH 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, with 13V working stand-off voltage (VWM), 14.4–17.6V breakdown voltage (VBR @ 1mA), and 23.8V maximum clamping voltage (VC) at 22A peak pulse current - deployed for ESD and surge protection in automotive lighting and power supply input stages.
For engineers reviewing the SA13CH datasheet, SA13CH pinout, SA13CH application, or SA13CH equivalent, key selection criteria include its AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.65), <1μA reverse leakage above 10V, 175°C junction temperature rating, and compatibility with lead-free reflow per J-STD-002 - critical for under-hood and infotainment system designs requiring robust transient immunity.
Technical Context
The SA13CH operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its specified VBR range (14.4–17.6V) to clamp transients by diverting surge current to ground. Its low dynamic impedance ensures rapid voltage stabilization during 10/1000μs surges up to 500W.
Designed for automotive-grade reliability, it features pure tin-plated leads compliant with JESD201 Class 2 whisker resistance, UL 94V-0 molding compound, and polarity marked via cathode band - enabling direct integration into 12V/24V vehicle subsystems without additional biasing or direction logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before conduction begins; sets safe margin below system rail (e.g., 13.5V battery nominal). |
| VBR @ 1mA | 14.4–17.6 V - Breakdown threshold range; defines minimum overvoltage level at which clamping initiates reliably. |
| VC @ IPPM | 23.8 V at 22 A - Clamped voltage during full 500W surge; determines maximum stress imposed on downstream ICs. |
| PPK | 500 W - Peak pulse power handling at 10/1000μs waveform; qualifies for ISO 7637-2 Pulse 1 & 2a immunity testing. |
| IR @ VWM | <1 μA - Reverse leakage at 13V; ensures negligible standby current drain in always-on automotive modules. |
| TJ MAX | +175 °C - Maximum junction temperature; supports operation in engine bay or power electronics enclosures. |
| Package | DO-204AC (DO-15) - Industry-standard axial-leaded package with 0.400g mass; compatible with legacy through-hole assembly and automated tape-and-reel feeding (3500/reel). |
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, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / Ground reference | Connected to system ground; completes clamping path during transient events - must be low-inductance connection. |
| Cathode | Protected line input / Surge entry point | Connected to protected node (e.g., LIN bus line or 12V supply rail); reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including temperature cycling, mechanical shock, and humidity testing - enables use in safety-critical ECUs without additional qualification. |
| 500W peak pulse rating | Withstands ISO 7637-2 Pulse 1 (inductive load dump) and Pulse 2a (supply interruption) waveforms without degradation - eliminates need for external series impedance in many cases. |
| Clamping voltage ≤23.8V | Ensures protected ICs (e.g., CAN transceivers, microcontrollers) remain below absolute maximum ratings during 22A surge - reduces risk of latch-up or gate oxide damage. |
| Reverse leakage <1μA @ 13V | Minimizes quiescent current in always-on circuits (e.g., body control modules), preserving battery life over extended parking periods. |
| UL 94V-0 flammability rating | Molding compound meets automotive fire-safety requirements for under-hood and cabin-mounted electronics - no flame propagation during fault conditions. |
Applications
| Automotive Lighting Control | 12V Power Supply Input Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and MOSFETs in headlamp modules from load-dump transients (ISO 7637-2 Pulse 5a) and ESD events during service. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12V rail and ground, clamping surges within nanoseconds to prevent overvoltage failure. Use Value: Enables compliance with ISO 16750-2 electrical stress requirements while maintaining <1μA standby leakage - critical for energy-efficient adaptive lighting systems. |
Use Scenario: Safeguarding power management ICs (e.g., buck controllers, LDOs) in infotainment head units against battery reversal, jump-start spikes, and alternator load dump. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on main 12V input, absorbing up to 500W for 1ms without derating at +125°C ambient. Use Value: Eliminates need for secondary RC snubbers or varistors, reducing BOM count and PCB area while meeting AEC-Q200 Class D vibration and thermal cycling requirements. |
| Body Control Module (BCM) I/O Protection | Industrial Sensor Interface Protection |
Use Scenario: Shielding LIN bus transceivers and GPIOs in door module ECUs from EFT (IEC 61000-4-4) and ESD (IEC 61000-4-2) events during assembly and field operation. IC Role / Device Role / Timing Role: Localized TVS on each protected signal line, leveraging fast response (<1ps) to limit voltage overshoot before transceiver input stages saturate. Use Value: Maintains signal integrity during 4kV contact ESD discharge while adding only 0.4g mass and zero active power consumption - ideal for space-constrained modules. |
Use Scenario: Protecting analog sensor inputs (e.g., pressure, temperature) in industrial PLC I/O cards from induced surges on long cable runs in factory environments. IC Role / Device Role / Timing Role: Standoff-rated TVS (13V VWM) placed upstream of precision op-amps and ADCs to prevent saturation and input stage damage. Use Value: Provides 23.8V clamping ceiling that preserves 16-bit ADC full-scale range (±10V differential) while supporting -55°C to +175°C operating range across harsh ambient conditions. |
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 SMAJ13A | Same DO-204AC package, 13V VWM, but bidirectional configuration; higher IR (5μA @ 13V) and slightly higher VC (24.4V @ 21.3A). | Requires polarity-aware layout for unidirectional use; not AEC-Q101 qualified - limited to commercial/industrial designs. | Choose SMAJ13A only if bidirectional capability is needed or AEC-Q101 is not required; SA13CH offers lower leakage and automotive qualification. |
| ON Semiconductor 1.5SMC13AH | Same unidirectional DO-214AB (SMA) package, 13V VWM, but higher VC (24.4V @ 21.3A); RoHS-compliant but not AEC-Q101 certified. | SMA package requires different footprint and reflow profile; lacks automotive qualification documentation and whisker resistance validation. | Select 1.5SMC13AH for cost-sensitive industrial applications where DO-214AB is preferred; SA13CH provides verified automotive reliability and DO-15 compatibility. |
Compared with SMAJ13A and 1.5SMC13AH, SA13CH delivers lower reverse leakage, AEC-Q101 validation, and DO-15 footprint compatibility - making it the optimal choice for automotive OEM production where traceable qualification, thermal robustness, and legacy assembly support are mandatory.
Availability
SA13CH is available at Aetrix Electronics and suitable for automotive lighting control, 12V power supply input protection, and body control module I/O protection requiring stable component supply across multi-year vehicle production cycles.
Supply support for SA13CH 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 - with global distribution and AEC-Q101-compliant product lines.
The SA Series was developed specifically for automotive-grade transient suppression, emphasizing high surge robustness, low clamping voltage, and process-controlled reliability in harsh thermal and mechanical environments.
FAQ
What is the AEC-Q101 qualification status of SA13CH?
The SA13CH is explicitly AEC-Q101 qualified, as confirmed in the SA Series datasheet Version L2105 and ordering code suffix "H". This qualification covers temperature cycling, high-temperature operating life, mechanical shock, and humidity testing - validating its suitability for automotive powertrain, chassis, and body electronics applications where reliability is mission-critical. SA13CH maintains full specification compliance throughout the AEC-Q101 stress test sequence.
Does SA13CH support lead-free reflow soldering?
Yes, SA13CH features pure tin-plated leads and is rated for lead-free reflow soldering per J-STD-002. Its DO-204AC (DO-15) package withstands peak temperatures up to 260°C for 10 seconds, matching standard Pb-free reflow profiles. The UL 94V-0 epoxy compound also complies with RoHS and halogen-free requirements per IEC 61249-2-21 - ensuring compatibility with modern eco-conscious manufacturing processes.
What is the maximum clamping voltage of SA13CH and at what current is it measured?
The maximum clamping voltage (VC) of SA13CH is 23.8 V, measured at 22 A peak pulse current (IPPM) under the 10/1000μs waveform condition. This value is specified in the "Maximum clamping voltage VC@IPPM" column of the SA Series electrical characteristics table for part number SA13, and applies directly to SA13CH as the AEC-Q101-qualified variant of SA13. It defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
How does SA13CH differ from SA13A?
SA13CH is the AEC-Q101-qualified version of the SA13 unidirectional TVS, whereas SA13A is a standard industrial-grade variant with tighter VBR tolerance (14.4–15.9 V vs. 14.4–17.6 V for SA13) but no automotive qualification. SA13CH carries the "H" suffix denoting AEC-Q101 compliance, includes whisker-resistant plating and enhanced traceability - making it suitable for automotive production, unlike SA13A which targets commercial applications.
Can SA13CH be used in bidirectional configurations?
No, SA13CH is a unidirectional TVS diode and must be used with correct polarity - cathode connected to the protected line, anode to ground. For bidirectional protection, Taiwan Semiconductor offers SA13CH's counterpart SA13CA (with "CA" suffix), which provides symmetrical clamping in both directions. Using SA13CH in reverse-biased mode beyond its specified reverse standoff voltage will cause premature conduction and potential device failure.
SA13CH 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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 22A
- 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)
SA13CH FAQ
1.How can I place an order for SA13CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SA13CH 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 SA13CH reliable?
The price and inventory of SA13CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA13CH is usually 5 days.
3.What payment methods are accepted for SA13CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA13CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA13CH?
SA13CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA13CH 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 SA13CH?
For technical support, including SA13CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA13CH requirements.
6.How does Aetrix verify that SA13CH is sourced from the original manufacturer or authorized distributors?
All SA13CH 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 SA13CH meets industry standards.
7.What is the process for return or replacement of SA13CH?
All SA13CH units undergo pre-shipment inspection (PSI). If there is an issue with SA13CH, 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 SA13CH part is unused and in its original packaging.
Return procedure for SA13CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA13CH 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…
