Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division SA9.0CHE3/54

Name: SA9.0CHE3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: SA9.0CHE3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SA9.0CHE3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: SA9.0CHE3/54.pdf

Description:: TVS DIODE 9VWM 16.9VC DO204AC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:9,670

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SA9.0CHE3/54 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 a 9.0 V stand-off voltage (V_WM), 15.4 V maximum clamping voltage (V_C) at 32.5 A peak pulse current (I_PPM), and 500 W peak pulse power (10/1000 µs waveform), with AEC-Q101 qualification for automotive-grade reliability.

For engineers reviewing the SA9.0CHE3/54 datasheet, SA9.0CHE3/54 pinout, SA9.0CHE3/54 application, or SA9.0CHE3/54 equivalent, this device serves as a robust, RoHS-compliant, bi-directional surge protector for low-voltage sensor interfaces, CAN bus lines, and industrial I/O protection where polarity-agnostic transient suppression is required.

Technical Context

The SA9.0CHE3/54 operates as a bi-directional avalanche diode, symmetrically clamping both positive and negative transients above its breakdown voltage range of 10.0–11.1 V (tested at 1 mA). Its glass-passivated junction ensures stable leakage performance (<5.0 µA at V_WM) and fast response time (<1 ns), enabling effective suppression of ESD and inductive switching spikes.

Thermally rated for -55 °C to +175 °C junction temperature, it delivers 3.0 W steady-state power dissipation on an infinite heatsink at 75 °C lead temperature and withstands 70 A non-repetitive forward surge (uni-directional only - not applicable here due to bi-directional configuration).

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	9.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 5 V–9 V logic/sensor rails.
V_BR (min/max)	10.0 V / 11.1 V - Breakdown occurs within this range at 1 mA test current; ensures consistent turn-on across production lots.
V_C @ I_PPM	15.4 V - Clamped voltage at 32.5 A peak pulse (10/1000 µs); limits downstream IC stress during surge events.
I_PPM	32.5 A - Peak transient current the device safely shunts without failure; supports common ISO 7637-2 Pulse 1/2b/5a waveforms.
P_PPM	500 W - Peak pulse power handling capability; enables protection against high-energy transients in automotive and industrial environments.
Leakage (I_D)	<5.0 µA at 9.0 V - Ultra-low reverse leakage preserves signal integrity and battery life in always-on circuits.
Package	DO-204AC (DO-15) - Industry-standard axial-leaded package with matte tin-plated leads, UL 94 V-0 molding, and AEC-Q101 qualification.

Pinout & Package

SA9.0CHE3/54 is a bi-directional TVS diode in DO-204AC (DO-15) package with no polarity marking; both terminals are electrically symmetrical and interchangeable. The device has two axial leads - anode and cathode are functionally identical in bi-directional operation.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Transient current entry point (positive or negative half-cycle)	Accepts surge current from either polarity; connects to protected line (e.g., CAN_H or RS-485 A).
Cathode (Lead 2)	Transient current return path (symmetric to Anode)	Connects to reference plane (e.g., chassis ground or signal common); no cathode band marking per bi-directional design.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive underhood and body electronics applications, including temperature cycling, humidity bias, and mechanical shock testing.
Glass passivated junction	Ensures long-term stability of breakdown voltage and leakage current under thermal stress and humidity exposure.
500 W peak pulse power (10/1000 µs)	Provides robust immunity against load-dump and inductive switching transients common in 12 V vehicle systems.
Bi-directional symmetry	Eliminates polarity concerns during board layout and assembly; simplifies protection of AC-coupled or differential lines like CAN, LIN, or RS-485.
RoHS-compliant HE3 suffix	Meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability; suitable for high-reliability industrial and automotive production.

Applications

Automotive Sensor Interface Protection	CAN Bus Line Protection
Use Scenario: Protecting analog outputs of pressure, temperature, or position sensors connected to 5 V or 9 V supply rails in engine control modules. IC Role / Device Role / Timing Role: Bi-directional clamping element placed between sensor output and ECU input to limit transient overvoltage to ≤15.4 V. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and ADC inputs during ISO 16750-2 load dump or jump-start events.	Use Scenario: Surge suppression on CAN_H and CAN_L lines in body control modules exposed to ESD and battery disconnect transients. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF), bi-directional TVS placed across differential pair to clamp common-mode surges without distorting signal integrity. Use Value: Maintains CAN FD bit timing accuracy by limiting clamping voltage to 15.4 V while surviving repetitive 500 W pulses per ISO 11898-2.
Industrial PLC Digital I/O Protection	Consumer Appliance Motor Drive Feedback Lines
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from inductive kickback when solenoids or relays de-energize. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted at connector entry point to divert >30 A transients away from optocoupler or Schmitt trigger inputs. Use Value: Enables reliable operation under IEC 61000-4-4 Level 4 (2 kV) surge testing without derating or additional series impedance.	Use Scenario: Protecting hall-effect sensor feedback lines in BLDC motor drives inside washing machines or HVAC systems. IC Role / Device Role / Timing Role: Bi-directional transient suppressor placed between sensor and MCU GPIO to absorb commutation noise and ESD from user touch panels. Use Value: Eliminates false triggering and resets caused by sub-100 ns transients, verified per IEC 61000-4-2 ±8 kV contact discharge.

Automotive Sensor Interface Protection

CAN Bus Line Protection

Use Scenario: Protecting analog outputs of pressure, temperature, or position sensors connected to 5 V or 9 V supply rails in engine control modules.

IC Role / Device Role / Timing Role: Bi-directional clamping element placed between sensor output and ECU input to limit transient overvoltage to ≤15.4 V.

Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and ADC inputs during ISO 16750-2 load dump or jump-start events.

Use Scenario: Surge suppression on CAN_H and CAN_L lines in body control modules exposed to ESD and battery disconnect transients.

IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF), bi-directional TVS placed across differential pair to clamp common-mode surges without distorting signal integrity.

Use Value: Maintains CAN FD bit timing accuracy by limiting clamping voltage to 15.4 V while surviving repetitive 500 W pulses per ISO 11898-2.

Industrial PLC Digital I/O Protection

Consumer Appliance Motor Drive Feedback Lines

Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from inductive kickback when solenoids or relays de-energize.

IC Role / Device Role / Timing Role: Standoff-rated TVS mounted at connector entry point to divert >30 A transients away from optocoupler or Schmitt trigger inputs.

Use Value: Enables reliable operation under IEC 61000-4-4 Level 4 (2 kV) surge testing without derating or additional series impedance.

Use Scenario: Protecting hall-effect sensor feedback lines in BLDC motor drives inside washing machines or HVAC systems.

IC Role / Device Role / Timing Role: Bi-directional transient suppressor placed between sensor and MCU GPIO to absorb commutation noise and ESD from user touch panels.

Use Value: Eliminates false triggering and resets caused by sub-100 ns transients, verified per IEC 61000-4-2 ±8 kV contact discharge.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ9.0AHE3/A	Uni-directional; 9.0 V V_WM, 14.4 V V_C @ 34.7 A; SMA package (surface-mount)	Requires polarity-aware placement; better suited for PCB space-constrained designs with unidirectional bias.	Select if layout allows directional routing and SMT assembly is preferred over through-hole DO-15.
TPSMD9.0AH	Bi-directional; 9.0 V V_WM, 15.0 V V_C @ 33.3 A; SMC package; higher I_PPM rating	Same functional role but larger footprint; optimized for higher surge repetition rates in telecom power supplies.	Choose when system-level surge testing exceeds single-pulse 500 W requirements and board area permits SMC outline.

Compared with SMAJ9.0AHE3/A and TPSMD9.0AH, SA9.0CHE3/54 offers through-hole DO-15 mounting for enhanced mechanical robustness in high-vibration environments, bi-directional symmetry for simplified routing on differential or AC-coupled lines, and AEC-Q101 qualification validated specifically for automotive sensor nodes.

Availability

SA9.0CHE3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, CAN bus hardening, and industrial PLC I/O conditioning requiring stable component supply, long-lifecycle support, and AEC-Q101 traceability.

Supply support for SA9.0CHE3/54 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and automotive-grade qualification.

The SAxxxC series is part of Vishay's TRANSZORB® TVS portfolio, engineered specifically for bi-directional transient suppression in harsh environments where polarity-agnostic clamping, AEC-Q101 compliance, and stable parametric performance across temperature are critical.

FAQ

What is the key difference between SA9.0CHE3/54 and uni-directional SA9.0AE3/54?

The SA9.0CHE3/54 is bi-directional with symmetrical clamping for both polarities and no cathode marking, making it ideal for AC-coupled or differential lines like CAN or RS-485. In contrast, SA9.0AE3/54 is uni-directional, featuring a cathode band and higher forward surge rating (70 A), but requires correct polarity orientation and is unsuitable for bidirectional signal protection.

Does SA9.0CHE3/54 meet AEC-Q101 requirements for automotive use?

Yes, SA9.0CHE3/54 carries the HE3 suffix, confirming full AEC-Q101 qualification per Vishay documentation (Document Number 88378, Revision 18-Sep-12). This includes stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - validating its suitability for automotive under-hood and body electronics applications.

What is the maximum clamping voltage of SA9.0CHE3/54 under standard surge conditions?

The SA9.0CHE3/54 exhibits a maximum clamping voltage (V_C) of 15.4 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 32.5 A. This value is measured per Figure 7/9 in the datasheet and ensures downstream ICs remain below absolute maximum voltage ratings during transient events.

Can SA9.0CHE3/54 be used in place of SA9.0CA in existing designs?

Yes - SA9.0CHE3/54 is the RoHS-compliant, AEC-Q101-qualified version of SA9.0CA, sharing identical electrical characteristics (V_WM = 9.0 V, V_BR = 10.0–11.1 V, V_C = 15.4 V), DO-204AC package, and bi-directional functionality. The HE3 suffix denotes enhanced whisker resistance and automotive qualification, with no layout or schematic changes required.

What is the leakage current specification for SA9.0CHE3/54 at its rated stand-off voltage?

At V_WM = 9.0 V and T_A = 25 °C, SA9.0CHE3/54 guarantees a maximum reverse leakage current (I_D) of 5.0 µA. This ultra-low leakage preserves signal fidelity in high-impedance sensor interfaces and minimizes quiescent power loss in battery-powered automotive modules.

SA9.0CHE3/54 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-204AC, DO-15, Axial

Series:: TransZorb®

Packaging:: Tape & Reel (TR)

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:: -

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)

SA9.0CHE3/54 FAQ

1.How can I place an order for SA9.0CHE3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for SA9.0CHE3/54 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 SA9.0CHE3/54 reliable?

The price and inventory of SA9.0CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA9.0CHE3/54 is usually 5 days.

3.What payment methods are accepted for SA9.0CHE3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA9.0CHE3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SA9.0CHE3/54?

SA9.0CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SA9.0CHE3/54 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 SA9.0CHE3/54?

For technical support, including SA9.0CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA9.0CHE3/54 requirements.

6.How does Aetrix verify that SA9.0CHE3/54 is sourced from the original manufacturer or authorized distributors?

All SA9.0CHE3/54 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 SA9.0CHE3/54 meets industry standards.

7.What is the process for return or replacement of SA9.0CHE3/54?

All SA9.0CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA9.0CHE3/54, 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 SA9.0CHE3/54 part is unused and in its original packaging.

Return procedure for SA9.0CHE3/54:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications

Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

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, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…