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Vishay General Semiconductor - Diodes Division SMA5J8.5CHE3/61
- Part No.:
- SMA5J8.5CHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J8.5CHE3/61.pdf
- Description:
- TVS DIODE 8.5VWM 15.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
SMA5J8.5CHE3/61 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on signal and power lines. It features a 8.5 V stand-off voltage (VWM), 9.44–10.4 V breakdown voltage (VBR) at 1 mA, 14.4 V maximum clamping voltage (VC) at 34.7 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 µs waveform. It is AEC-Q101 qualified and used in automotive sensor protection.
For engineers reviewing the SMA5J8.5CHE3/61 datasheet, SMA5J8.5CHE3/61 pinout, SMA5J8.5CHE3/61 application, or SMA5J8.5CHE3/61 equivalent, key selection factors include bi-directional clamping capability, 150 °C junction temperature rating, RoHS-compliant HE3 suffix qualification, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with electrical characteristics defined identically for forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance under repetitive transient stress.
The device meets MSL Level 1 per J-STD-020 (260 °C peak reflow), uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and supports AEC-Q101 qualification via the HE3 suffix - confirming suitability for automotive-grade reliability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.5 V - Maximum continuous reverse stand-off voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR min/max | 9.44 V / 10.4 V at 1 mA - Confirmed breakdown range ensuring predictable turn-on during transients. |
| VC @ IPPM | 14.4 V at 34.7 A - Clamping voltage under 10/1000 µs surge; limits downstream voltage stress to safe levels. |
| PPPM | 500 W - Peak pulse power handling capacity; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| Package | DO-214AC (SMA) - Surface-mount package with 5.28 mm × 4.50 mm footprint and 2.29 mm height; optimized for high-density PCB layouts. |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with two coplanar leads; no polarity marking for bi-directional types; terminals are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bi-directional terminal pair | Identical electrical behavior in both directions; connected across protected line and ground or between differential lines. |
| Case | Non-electrical mechanical body | UL 94 V-0 rated molding compound; provides flame resistance and mechanical stability during reflow and operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces. |
| Glass passivated junction | Ensures long-term parameter stability and resistance to humidity-induced degradation. |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns; peak reflow up to 260 °C. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulses). |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors and camera module signal lines from load dump and inductive switching transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and chassis ground to limit transient excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to analog front-end amplifiers and ADC inputs during ESD and surge events per ISO 10605 and ISO 7637-2. | Use Scenario: Safeguarding CANH/CANL differential pairs in industrial PLC gateways exposed to motor drive noise and relay bounce. IC Role / Device Role / Timing Role: Symmetrical transient suppressor mounted across CAN bus lines to maintain signal integrity during ±25 kV ESD contact discharge. Use Value: Maintains CAN FD communication uptime by clamping transients to ≤14.4 V while adding <1 pF junction capacitance at VWM. |
| Consumer USB Power Delivery | Telecom Base Station DC Feeds |
Use Scenario: Guarding 5 V/9 V/15 V USB PD input rails against hot-plug surges and external cable coupling in portable docking stations. IC Role / Device Role / Timing Role: Stand-off voltage-matched TVS placed between VBUS and GND to absorb 500 W surges without crowbarring. Use Value: Enables compliance with IEC 61000-4-5 (1.2/50 µs + 8/20 µs combo wave) while preserving PD negotiation timing. | Use Scenario: Protecting -48 V DC telecom power feeds from lightning-induced surges entering via outdoor cabling in remote radio units. IC Role / Device Role / Timing Role: Bi-directional suppressor installed between DC feed and ground plane to clamp common-mode transients above ±14.4 V. Use Value: Survives repeated 500 W surges with <1 % parameter shift after 1000 pulses, verified per Telcordia GR-1089-CORE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J8.5AHE3/61 | Same electrical specs; HE3 suffix denotes AEC-Q101 qualification - identical to SMA5J8.5CHE3/61. | No functional difference; both are bi-directional and AEC-Q101 qualified. | Select SMA5J8.5CHE3/61 when ordering from standard Vishay distribution channels with confirmed HE3 traceability. |
| SMCJ8.5CAHE3/61 | Higher PPPM (1500 W), larger DO-214AB (SMC) package (7.11 mm × 6.22 mm), same VWM/VBR/VC. | Suitable where higher surge margin is required but board space allows larger footprint. | Choose SMCJ8.5CAHE3/61 only if system-level testing requires >500 W surge handling; not drop-in due to package size mismatch. |
Compared with SMA5J8.5AHE3/61, SMA5J8.5CHE3/61 offers identical performance and qualification; versus SMCJ8.5CAHE3/61, it trades surge capacity for 40 % smaller PCB area - critical for compact automotive ECUs and USB-C modules.
Availability
SMA5J8.5CHE3/61 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, and consumer USB power delivery requiring stable component supply and AEC-Q101 traceability.
Supply support for SMA5J8.5CHE3/61 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 protection devices with emphasis on reliability and automotive-grade qualification.
The SMA5J series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density transient suppression in space-constrained automotive and industrial systems where bi-directional clamping and AEC-Q101 compliance are mandatory.
FAQ
What does the "C" in SMA5J8.5CHE3/61 indicate?
The "C" in SMA5J8.5CHE3/61 denotes bi-directional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical VBR, VC, and IPPM values for positive and negative surges. This distinguishes it from uni-directional variants like SMA5J8.5AHE3/61, which include a cathode band and conduct only in reverse bias. SMA5J8.5CHE3/61 has no polarity marking on the package body.
Is SMA5J8.5CHE3/61 suitable for IEC 61000-4-5 surge testing?
Yes, SMA5J8.5CHE3/61 is rated for 500 W peak pulse power with a 10/1000 µs waveform - directly supporting Level 4 (4 kV line-to-earth, 2 kV line-to-line) compliance per IEC 61000-4-5 when mounted on 5.0 mm × 5.0 mm copper pads. Its 14.4 V clamping voltage at 34.7 A ensures protected ICs remain within safe operating limits during standardized surge events.
How does the HE3 suffix affect SMA5J8.5CHE3/61?
The HE3 suffix on SMA5J8.5CHE3/61 confirms RoHS compliance and full AEC-Q101 qualification - including temperature cycling, humidity bias HAST, and accelerated life testing per automotive standards. It also indicates JESD 201 Class 2 whisker resistance and MSL Level 1 reflow capability, distinguishing it from commercial-grade E3-suffix variants.
What is the thermal resistance of SMA5J8.5CHE3/61?
SMA5J8.5CHE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on minimum recommended pad layout (0.2" × 0.2" copper pads). Its junction-to-lead resistance (RθJL) is 25 °C/W, enabling efficient heat transfer to PCB copper during repetitive surge events without exceeding the +150 °C maximum junction temperature.
Can SMA5J8.5CHE3/61 replace SMA5J8.5AHE3/61 in a design?
No - SMA5J8.5CHE3/61 is bi-directional, while SMA5J8.5AHE3/61 is uni-directional and features a cathode band. Substituting them without circuit review risks forward conduction during normal operation or failure to clamp negative transients. SMA5J8.5CHE3/61 must be used only where bi-directional protection is explicitly required and validated in the schematic.
SMA5J8.5CHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8.5V
- Voltage - Breakdown (Min):
- 9.44V
- Voltage - Clamping (Max) @ Ipp:
- 15.9V
- Current - Peak Pulse (10/1000µs):
- 31.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J8.5CHE3/61 FAQ
1.How can I place an order for SMA5J8.5CHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J8.5CHE3/61 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 SMA5J8.5CHE3/61 reliable?
The price and inventory of SMA5J8.5CHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J8.5CHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J8.5CHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J8.5CHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J8.5CHE3/61?
SMA5J8.5CHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J8.5CHE3/61 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 SMA5J8.5CHE3/61?
For technical support, including SMA5J8.5CHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J8.5CHE3/61 requirements.
6.How does Aetrix verify that SMA5J8.5CHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J8.5CHE3/61 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 SMA5J8.5CHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J8.5CHE3/61?
All SMA5J8.5CHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J8.5CHE3/61, 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 SMA5J8.5CHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J8.5CHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J8.5CHE3/61 Tags
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