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

Vishay General Semiconductor - Diodes Division SA7.0CHE3/54

Name: SA7.0CHE3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: SA7.0CHE3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SA7.0CHE3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

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

Datasheet:: SA7.0CHE3/54.pdf

Description:: TVS DIODE 7VWM 13.3VC DO204AC

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Product details

Overview

SA7.0CHE3/54 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 7.0 V stand-off voltage (V_WM), 7.78–8.60 V breakdown voltage (V_BR) at 10 mA, 500 W peak pulse power (10/1000 µs), 41.7 A peak pulse current (I_PPM), and 12.0 V maximum clamping voltage (V_C) - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.

For engineers reviewing the SA7.0CHE3/54 datasheet, SA7.0CHE3/54 pinout, SA7.0CHE3/54 application, or SA7.0CHE3/54 equivalent, this device serves as an AEC-Q101 qualified, RoHS-compliant transient protector with verified bi-directional clamping behavior, low incremental surge resistance, and fast response time - critical for ESD and load-switching surge immunity in 12 V/24 V embedded systems.

Technical Context

The SA7.0CHE3/54 implements a glass-passivated silicon junction optimized for bi-directional transient suppression, with symmetrical breakdown characteristics in both polarities. Its V_BR range (7.78–8.60 V) and tight V_C/V_BR ratio (≤1.54×) ensure predictable clamping during repetitive 10/1000 µs surges up to 500 W.

Designed for operation from –55 °C to +175 °C, it supports high-reliability automotive applications per AEC-Q101, with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	7.0 V - Maximum continuous reverse operating voltage before clamping begins; sets system-level overvoltage threshold for 12 V nominal rails.
V_BR (min/max)	7.78 V / 8.60 V at 10 mA - Confirmed breakdown range ensures reliable turn-on across temperature and unit variation.
V_C @ I_PPM	12.0 V at 41.7 A - Clamping voltage under full 500 W surge defines worst-case voltage seen by protected downstream circuitry.
P_PPM	500 W (10/1000 µs waveform) - Peak surge handling capacity suitable for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 transients.
I_PPM	41.7 A - Peak current capability directly derived from P_PPM/V_C; enables robust protection against inductive kickback in relay/valve drivers.
T_J max.	+175 °C - Junction temperature rating supports under-hood automotive placement and high-ambient industrial environments.
Package	DO-204AC (DO-15) - Standard axial-leaded package with 0.300" minimum lead length; UL 94 V-0 molded epoxy housing.

Pinout & Package

DO-204AC (DO-15) package: axial-leaded, bi-directional device with no polarity marking; both terminals are electrically symmetric and interchangeable.

Pin/Terminal	Circuit Role	Design Meaning
Anode/Cathode (symmetrical)	Transient conduction path	Bi-directional clamping node - conducts surge current in either polarity once V_BR is exceeded; no cathode band marking.
Lead 1 / Lead 2	Connection interface	Matte tin-plated copper leads; solderable per J-STD-002; rated for 275 °C dip for 10 s; JESD 201 Class 2 whisker resistant.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for engine control, body electronics, and ADAS modules.
500 W peak pulse power (10/1000 µs)	Enables single-device protection against severe load-dump and inductive switching events without external derating.
Low clamping ratio (V_C/V_BR ≤ 1.54)	Minimizes overvoltage stress on protected ICs - critical for 3.3 V/5 V logic interfacing with 12 V bus lines.
Glass passivated chip junction	Provides stable leakage performance (<1.0 µA at V_WM) and long-term parameter stability under thermal/humidity stress.
RoHS-compliant HE3 suffix	Confirms AEC-Q101 qualification, JESD 201 Class 2 whisker resistance, and compliance with Directive 2011/65/EU - traceable for Tier 1 automotive BOMs.

Applications

Automotive Power Line Protection	Industrial Sensor Interface Protection
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from battery line transients during load dump or alternator regulation faults. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between V_BAT and GND or signal line and GND, absorbing energy before it reaches sensitive analog front-ends. Use Value: Limits voltage excursion to ≤12.0 V during 41.7 A surges, preventing latch-up or gate oxide damage in 5 V tolerant MCU GPIOs.	Use Scenario: Shielding 4–20 mA current loop receivers and RS-485 transceivers from ESD and field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across differential pair or supply rail, responding within <1 ns to divert >90 % of surge current away from IC pins. Use Value: Maintains signal integrity by clamping transients below 12.0 V while exhibiting <1.0 µA leakage at 7.0 V - avoids DC offset errors in precision current sensing.
Consumer Appliance Motor Control	Telecom Power Input Stage
Use Scenario: Safeguarding H-bridge gate drivers and bootstrap circuits in washing machine drum motor inverters subjected to back-EMF spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS on low-side switch source or high-side bootstrap rail, conducting only during overvoltage events above 7.78 V. Use Value: Withstands 500 W pulses without degradation, enabling single-component protection instead of RC snubbers - reducing BOM count and board space.	Use Scenario: Front-end surge suppression on 48 V telecom power inputs exposed to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: First-stage clamping device upstream of DC/DC converters, limiting input voltage to safe levels before secondary protection stages engage. Use Value: Delivers 41.7 A peak current handling at 12.0 V clamping, allowing coordination with downstream MOVs or polymer PTCs for staged protection architecture.

Automotive Power Line Protection

Industrial Sensor Interface Protection

Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from battery line transients during load dump or alternator regulation faults.

IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between V_BAT and GND or signal line and GND, absorbing energy before it reaches sensitive analog front-ends.

Use Value: Limits voltage excursion to ≤12.0 V during 41.7 A surges, preventing latch-up or gate oxide damage in 5 V tolerant MCU GPIOs.

Use Scenario: Shielding 4–20 mA current loop receivers and RS-485 transceivers from ESD and field-wiring induced surges in factory automation cabinets.

IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across differential pair or supply rail, responding within <1 ns to divert >90 % of surge current away from IC pins.

Use Value: Maintains signal integrity by clamping transients below 12.0 V while exhibiting <1.0 µA leakage at 7.0 V - avoids DC offset errors in precision current sensing.

Consumer Appliance Motor Control

Telecom Power Input Stage

Use Scenario: Safeguarding H-bridge gate drivers and bootstrap circuits in washing machine drum motor inverters subjected to back-EMF spikes.

IC Role / Device Role / Timing Role: Parallel-connected TVS on low-side switch source or high-side bootstrap rail, conducting only during overvoltage events above 7.78 V.

Use Value: Withstands 500 W pulses without degradation, enabling single-component protection instead of RC snubbers - reducing BOM count and board space.

Use Scenario: Front-end surge suppression on 48 V telecom power inputs exposed to lightning-induced surges per IEC 61000-4-5.

IC Role / Device Role / Timing Role: First-stage clamping device upstream of DC/DC converters, limiting input voltage to safe levels before secondary protection stages engage.

Use Value: Delivers 41.7 A peak current handling at 12.0 V clamping, allowing coordination with downstream MOVs or polymer PTCs for staged protection architecture.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ7.0AHE3/A	Same V_WM (7.0 V), but unidirectional; SMA package (surface-mount); lower I_PPM (32.5 A) and P_PPM (400 W).	Requires polarity-aware layout; suited for PCB space-constrained designs where axial leads are impractical.	Select when automated SMT assembly is mandatory and unidirectional protection suffices (e.g., DC supply rails with defined polarity).
1.5KE7.5CA	Higher P_PPM (1500 W), same bi-directionality; DO-201AD package; V_WM = 7.5 V, V_C = 12.0 V, I_PPM = 125 A.	Over-specified for 500 W use cases; larger footprint and higher cost; better suited for primary-level surge entry points.	Choose when system-level surge requirements exceed 500 W (e.g., AC mains input or outdoor telecom enclosures) and DO-201AD mounting is acceptable.

Compared with SMAJ7.0AHE3/A and 1.5KE7.5CA, SA7.0CHE3/54 offers optimal balance of AEC-Q101 qualification, axial-leaded serviceability, and precise 500 W/7.0 V rating - making it the preferred choice for automotive body control modules and industrial PLC I/O cards requiring proven reliability and through-hole assembly.

Availability

SA7.0CHE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and consumer appliance motor control systems requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.

Supply support for SA7.0CHE3/54 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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.

The SAxxxC series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, stable clamping, and high-temperature operation are mandatory.

FAQ

What is the key difference between SA7.0CHE3/54 and SA7.0AHE3/54?

The SA7.0CHE3/54 is a bi-directional TVS diode (indicated by the 'C' suffix), meaning it clamps voltage transients in both polarities - ideal for AC-coupled lines or floating signal paths. In contrast, SA7.0AHE3/54 is uni-directional, with a cathode band and asymmetric behavior: it blocks forward current up to ~3.5 V but clamps only in reverse. Both share the HE3 AEC-Q101 qualification and DO-204AC package, but their circuit roles differ fundamentally. SA7.0CHE3/54 must be used where polarity is undefined or alternating.

Does SA7.0CHE3/54 meet automotive qualification standards?

Yes, SA7.0CHE3/54 carries the HE3 suffix, which explicitly denotes AEC-Q101 qualification per Vishay's ordering nomenclature. This includes testing for high-temperature reverse bias (HTRB), temperature cycling, and surge endurance - confirming suitability for under-hood and chassis-mounted automotive ECUs. The device operates from –55 °C to +175 °C and uses whisker-resistant matte tin plating per JESD 201 Class 2, satisfying Tier 1 automotive BOM requirements.

What is the maximum clamping voltage of SA7.0CHE3/54 under surge conditions?

The maximum clamping voltage (V_C) of SA7.0CHE3/54 is 12.0 V, measured at its peak pulse current (I_PPM) of 41.7 A using the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and represents the highest voltage that will appear across the device during a 500 W transient event - a critical parameter for ensuring downstream ICs remain within absolute maximum ratings.

Can SA7.0CHE3/54 be used in place of a uni-directional TVS like SA7.0AHE3/54?

No - SA7.0CHE3/54 should not replace SA7.0AHE3/54 in uni-directional applications without circuit review. While both suppress transients, the bi-directional SA7.0CHE3/54 conducts in both directions above V_BR, potentially disrupting DC bias or forward-biased paths. For example, placing SA7.0CHE3/54 across a 5 V supply rail could cause unintended conduction during normal operation if ripple exceeds V_BR. Always match device polarity to circuit topology; SA7.0CHE3/54 is intended for AC signals, differential buses, or floating nodes.

What does the '/54' suffix indicate in SA7.0CHE3/54?

The '/54' suffix in SA7.0CHE3/54 specifies the packaging configuration: 13-inch diameter paper tape and reel, with a base quantity of 4000 units per reel. This is a standard logistics code used by Vishay for automated SMT placement equipment compatibility. It does not affect electrical or reliability specifications - the core device remains the AEC-Q101 qualified, bi-directional SA7.0CHE3 TVS in DO-204AC package.

SA7.0CHE3/54 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):: 7V

Voltage - Breakdown (Min):: 7.78V

Voltage - Clamping (Max) @ Ipp:: 13.3V

Current - Peak Pulse (10/1000µs):: 37.6A

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)

SA7.0CHE3/54 FAQ

1.How can I place an order for SA7.0CHE3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for SA7.0CHE3/54 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 SA7.0CHE3/54 reliable?

The price and inventory of SA7.0CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA7.0CHE3/54 is usually 5 days.

3.What payment methods are accepted for SA7.0CHE3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA7.0CHE3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SA7.0CHE3/54?

SA7.0CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SA7.0CHE3/54 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 SA7.0CHE3/54?

For technical support, including SA7.0CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA7.0CHE3/54 requirements.

6.How does Aetrix verify that SA7.0CHE3/54 is sourced from the original manufacturer or authorized distributors?

All SA7.0CHE3/54 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 SA7.0CHE3/54 meets industry standards.

7.What is the process for return or replacement of SA7.0CHE3/54?

All SA7.0CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA7.0CHE3/54, 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 SA7.0CHE3/54 part is unused and in its original packaging.

Return procedure for SA7.0CHE3/54:

1.Submit a request within 90 days.

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

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