My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SA8.0CHE3/54
- Part No.:
- SA8.0CHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA8.0CHE3/54.pdf
- Description:
- TVS DIODE 8VWM 15VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,905
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA8.0CHE3/54 from Vishay General Semiconductor is a bi-directional TransZORB® transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR) at 1 mA, 13.6 V maximum clamping voltage (VC) at 25 A peak pulse current (IPPM), 500 W peak pulse power (PPPM), and AEC-Q101 qualification for automotive reliability.
For engineers reviewing the SA8.0CHE3/54 datasheet, SA8.0CHE3/54 pinout, SA8.0CHE3/54 application, or SA8.0CHE3/54 equivalent, this page delivers verified electrical parameters, package dimensions, clamping behavior under 10/1000 µs surge, thermal derating curves, and direct alternatives for ESD and inductive-switching protection in automotive and industrial systems.
Technical Context
The SA8.0CHE3/54 operates as a bi-directional avalanche diode with symmetrical clamping in both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR and low leakage (<1.0 µA at VWM), while its 175 °C max junction temperature supports operation in under-hood automotive environments.
It is rated for 500 W peak pulse power per 10/1000 µs waveform at TA = 25 °C, with derating above 25 °C per Fig. 2 and steady-state power dissipation of 3.0 W on infinite heatsink at TL = 75 °C. The device meets JESD 22-B106 solderability (275 °C, 10 s) and JESD 201 class 2 whisker resistance (HE3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse voltage before clamping begins; defines operating margin for 5 V or 9 V rail protection. |
| VBR (min/max) | 8.89 V / 9.83 V at IT = 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot. |
| VC @ IPPM | 13.6 V at IPPM = 25 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 500 W - Peak transient energy absorption capability; sufficient for ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3. |
| ID @ VWM | <1.0 µA - Ultra-low reverse leakage; avoids signal integrity degradation in high-impedance sensor interfaces. |
| TJ max | +175 °C - Enables placement near heat sources (e.g., power modules, engine control units) without thermal shutdown. |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD. |
Pinout & Package
Package: DO-204AC (DO-15), molded epoxy case with matte tin-plated leads; meets UL 94 V-0 flammability rating. Bi-directional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; connects across protected line (e.g., CAN_H–CAN_L) or between line and ground without orientation concern. |
| Case (non-isolated) | Mechanical mounting surface | Not electrically isolated; must be routed away from adjacent high-voltage or RF-sensitive traces to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR over lifetime and temperature; eliminates parameter drift due to moisture or contamination ingress. |
| 500 W peak pulse power (10/1000 µs) | Withstands repeated load-dump surges up to 500 W without degradation, supporting long-term field reliability in 12 V automotive systems. |
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling (-55 °C to +175 °C), HTRB, and mechanical shock. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD >15 kV), improving protection margin for sensitive PHYs and microcontrollers. |
| RoHS-compliant HE3 suffix | Meets JESD 201 class 2 whisker resistance and EU RoHS Directive 2011/65/EU; suitable for lead-free reflow assembly. |
Applications
| Automotive CAN Bus Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L differential pair against ISO 7637-2 load dump and jump-start transients in body control modules. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly across differential bus lines, absorbing surge energy before it reaches CAN transceiver input stages. Use Value: Limits clamped voltage to ≤13.6 V during 25 A surge, preserving transceiver functionality and meeting OEM EMC requirements without added filtering. | Use Scenario: Safeguarding analog output (4–20 mA) or digital I²C lines from inductive kickback in factory automation sensors. IC Role / Device Role / Timing Role: Standoff-connected TVS across signal-to-ground or signal-to-signal, responding within <1 ns to clamp transients induced by relay switching or motor drives. Use Value: Sub-1 µA leakage at 8.0 V VWM prevents loading of high-impedance sensor outputs, maintaining measurement accuracy while providing 500 W surge immunity. |
| Consumer Power Adapter Input Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-side DC input protection for USB-C PD adapters exposed to user-handling ESD and mains-coupled noise. IC Role / Device Role / Timing Role: Bi-directional TVS placed between VBUS and GND to shunt ±8 kV contact ESD per IEC 61000-4-2, prior to DC-DC controller input. Use Value: 13.6 V clamping ensures downstream MOSFET gate oxide remains below breakdown threshold, eliminating need for additional series impedance. | Use Scenario: Primary protection for ADSL/VDSL line drivers subjected to lightning-induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Paired bi-directional TVS devices (one per line) referenced to common-mode ground, clamping differential and common-mode transients simultaneously. Use Value: Symmetrical 8.89–9.83 V VBR enables matched response on both line conductors, preserving signal integrity while meeting GR-1089-CORE Level 3 surge requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A-E3/54 | Uni-directional; 8.0 V VWM, 13.6 V VC @ 25 A, same DO-214AC package but different footprint and polarity marking. | Requires correct orientation on PCB; unsuitable for AC or differential lines without external biasing. | Select when protecting unidirectional DC rails (e.g., 5 V logic supply) where polarity is fixed and board space allows SMA package. |
| 1.5KE8.0CA | Higher PPPM (1500 W), larger DO-204AL (DO-41) package, 13.6 V VC @ 72.2 A, same bi-directional function. | Better suited for primary-side AC line protection or high-energy industrial surges; requires larger pad layout and thermal relief. | Choose for legacy designs needing higher surge margin or where DO-41 footprint is already standardized; not drop-in due to size and lead spacing. |
Compared with SMAJ8.0A-E3/54 and 1.5KE8.0CA, the SA8.0CHE3/54 uniquely combines AEC-Q101 qualification, DO-15 compactness, and bi-directional symmetry-making it optimal for space-constrained automotive signal lines where polarity-agnostic protection and qualification compliance are mandatory.
Availability
SA8.0CHE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom line protection requiring stable component supply, AEC-Q101 validation, and RoHS-compliant manufacturing.
Supply support for SA8.0CHE3/54 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, MOSFETs, and TVS devices with emphasis on reliability, efficiency, and application-specific performance.
The SAxxxC series is part of Vishay's TransZORB® TVS platform engineered for robust transient suppression in automotive, industrial, and communications infrastructure-designed to replace older MOV or gas-tube solutions with faster response, tighter tolerances, and qualified longevity.
FAQ
What is the clamping voltage of the SA8.0CHE3/54 under a standard 10/1000 µs surge?
The SA8.0CHE3/54 exhibits a maximum clamping voltage (VC) of 13.6 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 25 A. This value is measured per Figure 7 in the official Vishay datasheet 88378 and reflects worst-case clamping behavior across temperature and process variation. The SA8.0CHE3/54 maintains this performance consistently due to its glass-passivated junction and AEC-Q101 validation.
Is the SA8.0CHE3/54 suitable for protecting CAN FD networks?
Yes, the SA8.0CHE3/54 is suitable for CAN FD physical layer protection due to its bi-directional symmetry, 13.6 V clamping voltage, and sub-nanosecond response time-enabling effective suppression of ESD and fast transients without distorting the 5 Mbps signal edge integrity. Its DO-15 package allows tight placement near connectors, and AEC-Q101 qualification confirms suitability for automotive serial bus environments where the SA8.0CHE3/54 is commonly deployed.
Does the SA8.0CHE3/54 have polarity markings on the package?
No, the SA8.0CHE3/54 does not feature polarity markings because it is a bi-directional TVS diode. Unlike uni-directional variants (e.g., SA8.0A), the SA8.0CHE3/54 functions identically regardless of terminal orientation-making it ideal for differential or AC-coupled applications such as CAN, RS-485, or audio lines. This absence of band marking is explicitly noted in the "Polarity" section of Vishay document 88378.
What is the maximum operating temperature for the SA8.0CHE3/54?
The SA8.0CHE3/54 has a maximum junction temperature (TJ max) of +175 °C, as specified in the "Maximum Ratings" table of Vishay datasheet 88378. This rating enables reliable operation in under-hood automotive locations and industrial enclosures with elevated ambient temperatures. Derating curves (Fig. 2) define allowable pulse power reduction above 25 °C ambient, ensuring the SA8.0CHE3/54 remains within safe thermal limits across its full operational envelope.
How does the HE3 suffix on SA8.0CHE3/54 differ from the E3 suffix?
HE3 indicates AEC-Q101 qualification and JESD 201 class 2 whisker resistance, whereas E3 denotes commercial-grade RoHS compliance only (JESD 201 class 1A). The SA8.0CHE3/54's HE3 suffix confirms full automotive qualification-including temperature cycling, HTRB, and mechanical shock testing-making it appropriate for safety-critical vehicle subsystems where the standard SA8.0CE3/54 would not be approved. Both share identical electrical specs and DO-15 packaging.
SA8.0CHE3/54 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 33.3A
- 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)
SA8.0CHE3/54 FAQ
1.How can I place an order for SA8.0CHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA8.0CHE3/54 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 SA8.0CHE3/54 reliable?
The price and inventory of SA8.0CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA8.0CHE3/54 is usually 5 days.
3.What payment methods are accepted for SA8.0CHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA8.0CHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA8.0CHE3/54?
SA8.0CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA8.0CHE3/54 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 SA8.0CHE3/54?
For technical support, including SA8.0CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA8.0CHE3/54 requirements.
6.How does Aetrix verify that SA8.0CHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA8.0CHE3/54 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 SA8.0CHE3/54 meets industry standards.
7.What is the process for return or replacement of SA8.0CHE3/54?
All SA8.0CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA8.0CHE3/54, 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 SA8.0CHE3/54 part is unused and in its original packaging.
Return procedure for SA8.0CHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA8.0CHE3/54 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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…
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 …
