My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J8.5C-E3/61
- Part No.:
- SMA5J8.5C-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J8.5C-E3/61.pdf
- Description:
- TVS DIODE 8.5VWM 15.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,390
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J8.5C-E3/61 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection 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 clamping voltage (VC) at 34.7 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform. It is AEC-Q101 qualified and used in automotive sensor interface protection.
For engineers reviewing the SMA5J8.5C-E3/61 datasheet, SMA5J8.5C-E3/61 pinout, SMA5J8.5C-E3/61 application, or SMA5J8.5C-E3/61 equivalent, key selection criteria include bi-directional clamping capability, low clamping ratio (VC/VWM = 1.69), RoHS-compliant matte tin terminations, MSL Level 1 rating, 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 identical electrical characteristics forward and reverse - enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage performance and fast response (<1 ps) to transients induced by ESD, inductive switching, or lightning surges.
The device uses a planar silicon avalanche structure optimized for low incremental surge resistance (rd) and high surge current handling (34.7 A IPPM). Thermal resistance is characterized at RθJA = 80 °C/W (on recommended pad layout) and RθJL = 25 °C/W, supporting reliable operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.5 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 9 V nominal systems. |
| VBR (min/max) | 9.44 V / 10.4 V at 1 mA - Confirmed breakdown threshold range; ensures consistent turn-on across production lots and temperature. |
| VC @ IPPM | 14.4 V at 34.7 A - Clamped voltage during 500 W transient; limits downstream IC stress to safe levels in automotive CAN/LIN bus protection. |
| PPPM | 500 W - Peak pulse power handling with 10/1000 µs waveform; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity. |
| IPPM | 34.7 A - Peak pulse current corresponding to 500 W clamping; determines minimum trace width and PCB copper area required. |
| TJ max | 150 °C - Maximum junction temperature; enables use in under-hood automotive environments with minimal derating. |
| MSL Level | Level 1 per J-STD-020 - No floor life limitation; compatible with standard reflow profiles up to 260 °C peak. |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; no polarity marking (bi-directional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction terminals | No functional distinction between terminals; either lead connects to protected line, the other to ground or reference plane. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485, CAN), or ungrounded power rails without polarity constraints. |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces per stress test requirements. |
| Glass passivated junction | Ensures long-term stability of leakage current (<1 μA at VWM) and repeatable breakdown behavior across thermal cycling and humidity exposure. |
| Low clamping ratio (VC/VWM) | 1.69 - Minimizes overvoltage overshoot during transients, reducing risk of latch-up or gate oxide damage in protected MOSFETs or ICs. |
| MSL Level 1 & RoHS compliance | Supports high-volume automated assembly without moisture sensitivity concerns and meets global environmental compliance mandates. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments subject to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed between sensor signal line and chassis ground to shunt transients before reaching ADC input or op-amp buffer. Use Value: Maintains signal integrity under 100 V/50 ms load dump events while adding <0.5 pF capacitance - critical for 12-bit+ sensor accuracy. |
Use Scenario: Safeguarding 24 V DC digital input channels on programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each isolated input channel, mounted directly at connector entry point. Use Value: Withstands repeated 500 W transients without degradation, extending maintenance intervals and eliminating false-trip failures in factory automation. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Transient suppression on RS-485 data lines in outdoor telecom base stations subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bi-directional TVS placed differentially across A/B lines and common-mode to ground to suppress both differential and common-mode transients. Use Value: Symmetrical VBR ensures balanced clamping, preserving signal skew and jitter performance essential for >10 Mbps data rates. |
Use Scenario: Secondary-level ESD protection on VBUS and D+/D− lines of USB 2.0 ports in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Standoff-rated clamp positioned after primary polymer PTC, absorbing residual 8 kV HBM ESD strikes that bypass upstream protection. Use Value: 14.4 V clamping prevents USB PHY latch-up while maintaining <1 nA leakage at 5 V - avoiding phantom charging or enumeration issues. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ8.5CA | Same DO-214AC package, VWM = 8.5 V, VC = 14.4 V, but rated for 400 W (vs. 500 W); slightly higher leakage (5 μA vs. 1 μA). | Lower peak power handling reduces margin for IEC 61000-4-5 Level 4 compliance; suitable where surge energy is limited. | Select SMA5J8.5C-E3/61 when full 500 W rating and AEC-Q101 qualification are required for automotive or industrial deployment. |
| ON Semiconductor 1.5SMC8.5CA | Same VWM/VC, but larger DO-214AB (SMB) package (4.58 mm × 3.94 mm vs. 4.50 mm × 2.79 mm); 500 W rating retained. | Requires larger PCB footprint and may not fit space-constrained layouts; thermal resistance differs (RθJA ≈ 60 °C/W). | Choose SMA5J8.5C-E3/61 for high-density SMT designs needing smallest possible footprint without sacrificing power rating or qualification. |
Compared with SMAJ8.5CA and 1.5SMC8.5CA, the SMA5J8.5C-E3/61 delivers identical clamping performance in a smaller footprint, with superior automotive qualification and lower leakage - making it optimal for space- and reliability-critical automotive and industrial edge nodes.
Availability
SMA5J8.5C-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 assurance, and RoHS-compliant manufacturing.
Supply support for SMA5J8.5C-E3/61 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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The SMA5J series was engineered specifically for high-power-density transient suppression in space-constrained, high-surge environments - targeting automotive ECUs, industrial controls, and infrastructure equipment where failure is not an option.
FAQ
What is the polarity configuration of SMA5J8.5C-E3/61?
The SMA5J8.5C-E3/61 is a bi-directional TVS diode with symmetrical avalanche junctions; there is no cathode band or polarity marking on the DO-214AC package. Both terminals function identically, allowing flexible placement across differential or AC-coupled signal paths without orientation constraints. This symmetry is confirmed in the Vishay datasheet Document Number 88875, Section "Polarity".
Does SMA5J8.5C-E3/61 meet automotive qualification standards?
Yes, SMA5J8.5C-E3/61 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet revision 24-Oct-12 (Document Number 88875) under "MECHANICAL DATA" and "THERMAL CHARACTERISTICS". The HE3 suffix denotes AEC-Q101 qualification, and the E3/61 variant shares the same die and qualification - verified via Vishay's official ordering information table and material categorization documentation.
What is the maximum clamping voltage for SMA5J8.5C-E3/61 under surge conditions?
The maximum clamping voltage (VC) for SMA5J8.5C-E3/61 is 14.4 V at 34.7 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table of the Vishay datasheet (Document Number 88875, page 2) for the SMA5J8.5CA family, confirming performance for the exact SMA5J8.5C-E3/61 part number.
Is SMA5J8.5C-E3/61 RoHS compliant and lead-free?
Yes, SMA5J8.5C-E3/61 is RoHS compliant and lead-free. The "E3" suffix indicates RoHS compliance per Directive 2011/65/EU, and the device uses matte tin-plated leads with no lead content. This is documented in the "MECHANICAL DATA" section of the Vishay datasheet (Document Number 88875), which states "Base P/N-E3 - RoHS compliant, commercial grade".
What is the thermal resistance of SMA5J8.5C-E3/61, and how does it affect layout?
The typical thermal resistance junction-to-ambient (RθJA) for SMA5J8.5C-E3/61 is 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the "THERMAL CHARACTERISTICS" table (Document Number 88875, page 2). This requires minimum copper area per pad to avoid thermal runaway during repetitive surge events - undersized pads will elevate junction temperature beyond the 150 °C limit.
SMA5J8.5C-E3/61 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J8.5C-E3/61 FAQ
1.How can I place an order for SMA5J8.5C-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J8.5C-E3/61 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 SMA5J8.5C-E3/61 reliable?
The price and inventory of SMA5J8.5C-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J8.5C-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J8.5C-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J8.5C-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J8.5C-E3/61?
SMA5J8.5C-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J8.5C-E3/61 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 SMA5J8.5C-E3/61?
For technical support, including SMA5J8.5C-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J8.5C-E3/61 requirements.
6.How does Aetrix verify that SMA5J8.5C-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J8.5C-E3/61 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 SMA5J8.5C-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J8.5C-E3/61?
All SMA5J8.5C-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J8.5C-E3/61, 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 SMA5J8.5C-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J8.5C-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J8.5C-E3/61 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 …
