My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J30CAHE3/61
- Part No.:
- SMA5J30CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30CAHE3/61.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,199
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J30CAHE3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 30 V stand-off voltage (VWM), 48.4 V maximum clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to safeguard automotive sensor interfaces and industrial I/O circuits against ESD and load-switching transients.
For engineers reviewing the SMA5J30CAHE3/61 datasheet, SMA5J30CAHE3/61 pinout, SMA5J30CAHE3/61 application, or SMA5J30CAHE3/61 equivalent, key selection criteria include bidirectional polarity, AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.61), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative transients without polarity dependency. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports consistent clamping under repetitive surge stress.
The device is rated for 150 °C maximum junction temperature and exhibits a thermal resistance of 25 °C/W (junction-to-lead), making it suitable for high-density PCB layouts with limited heatsinking. Its 80 °C/W junction-to-ambient rating reflects performance on standard 0.2" × 0.2" copper pads per JEDEC test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 33.3 V / 36.8 V - Breakdown occurs within this band at 1 mA test current; ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 48.4 V at 10.3 A - Clamping voltage during 10/1000 µs surge; limits downstream voltage stress to <49 V under full-rated pulse. |
| PPPM | 500 W - Peak pulse power handling capability; enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) when properly mounted. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| MSL Level | Level 1 (per J-STD-020) - No floor life limitation; can be stored indefinitely and reflowed at peak 260 °C without preconditioning. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve identical roles; bidirectional clamping occurs regardless of voltage polarity applied across the device. |
| Case (body) | Thermal and mechanical interface | Plastic-molded body provides UL 94 V-0 flammability rating and transfers heat to PCB copper pads via leadframe contact. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., CAN bus, RS-485, sensor bridges) without external polarity management. |
| AEC-Q101 qualification | Validates reliability for automotive-grade deployment including temperature cycling, HTRB, and ESD testing - required for Tier-1 supplier BOMs. |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes overvoltage exposure during surge events, reducing risk of latch-up or gate oxide damage in downstream MOSFETs and ICs. |
| Glass-passivated junction | Improves long-term stability of breakdown voltage and leakage current under thermal and humidity stress versus epoxy-passivated alternatives. |
| Matte tin-plated leads | Ensures solderability per J-STD-002 and JESD 22-B102, with whisker resistance per JESD 201 Class 2 for high-reliability assembly. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt transients before reaching ADC input or signal conditioner. Use Value: Limits voltage excursion to ≤48.4 V during 10/1000 µs surges up to 500 W, preserving sensor accuracy and preventing microcontroller reset. |
Use Scenario: Safeguarding 24 V DC digital input channels on PLC modules subjected to inductive kickback from solenoid switching. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side input traces, coordinated with series current-limiting resistor and optocoupler isolation. Use Value: Withstands ≥1000 surges at rated PPPM without parameter shift, ensuring >10-year field reliability in factory automation systems. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-level surge protection on Ethernet PHY power rails (3.3 V/5 V) in PoE-powered switches vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: Fast-response clamping device placed after primary MOV but before LDO regulator to prevent rail collapse. Use Value: Sub-1 ns response time and 48.4 V clamping hold supply rail within ±5 % regulation window during 1 kV/0.5 Ω surge events. |
Use Scenario: Input-stage transient suppression on 12 V auxiliary rails in USB-C PD adapters where space constraints limit use of larger packages. IC Role / Device Role / Timing Role: Compact, low-profile TVS mounted adjacent to AC-DC controller IC to absorb fast-rising ESD and line-switching spikes. Use Value: SMA footprint enables placement in <3 mm² area while maintaining 500 W surge rating - critical for ultra-thin adapter designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J30CA-M3/61 | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification; same SMA package and thermal performance. | No functional difference; selected when halogen-free material compliance is mandated by OEM environmental policy. | Direct substitution where halogen content must be minimized - no layout or reliability impact. |
| SMA6J30CAHE3/61 | 600 W PPPM rating (vs. 500 W), same VWM/VC, higher IPPM (12.3 A), identical AEC-Q101 qualification and SMA package. | Supports higher-energy threat levels (e.g., ISO 16750-2 Pulse 5a); requires verification of board thermal margin due to +20 % power dissipation. | Preferred when system-level surge testing exceeds 500 W requirements - retains same footprint and mounting process. |
Compared with SMA5J30CAHE3/61, the M3 variant offers identical protection performance with halogen-free materials, while the SMA6J30CAHE3/61 delivers 20 % higher surge power handling in the same SMA footprint - enabling design margin extension without PCB redesign.
Availability
SMA5J30CAHE3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, and telecom power rail protection requiring stable component supply and AEC-Q101 traceability.
Supply support for SMA5J30CAHE3/61 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 validation.
The SMA5JxxCA family is engineered for high-power-density transient suppression in space-constrained, high-reliability applications - particularly targeting automotive, industrial, and telecom systems requiring AEC-Q101 compliance and robust 10/1000 µs surge immunity.
FAQ
What is the polarity configuration of SMA5J30CAHE3/61?
The SMA5J30CAHE3/61 is a bidirectional TVS diode with symmetrical terminal construction - neither end is marked as anode or cathode. This allows it to suppress voltage transients of either polarity equally, making it ideal for AC-coupled or floating signal paths such as CAN bus lines or bridge sensor outputs. Its bidirectional behavior is confirmed in the Vishay datasheet section "DEVICES FOR BIDIRECTION APPLICATIONS" and verified in the electrical characteristics table under "DEVICE TYPE: BI".
Is SMA5J30CAHE3/61 qualified for automotive applications?
Yes, SMA5J30CAHE3/61 is AEC-Q101 qualified, as indicated by the "HE3" suffix in its part number and explicitly stated in the Vishay datasheet's Mechanical Data section. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, validating its suitability for under-hood and chassis-mounted automotive electronics. The device is approved for use in engine control units, ADAS camera modules, and body control modules.
What is the maximum clamping voltage of SMA5J30CAHE3/61 under surge conditions?
The maximum clamping voltage (VC) of SMA5J30CAHE3/61 is 48.4 V, measured at a peak pulse current (IPPM) of 10.3 A using the standardized 10/1000 µs waveform. This value is specified in the Electrical Characteristics table of the Vishay datasheet (Document Number: 88875) and represents the upper voltage limit imposed on protected circuitry during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Does SMA5J30CAHE3/61 require special handling or baking prior to reflow?
No, SMA5J30CAHE3/61 is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and may be reflowed at the standard peak temperature of 260 °C without preconditioning or baking. This eliminates moisture sensitivity concerns during SMT assembly and reduces manufacturing overhead - a key advantage for high-volume automotive and industrial production lines.
How does the thermal performance of SMA5J30CAHE3/61 compare between junction-to-lead and junction-to-ambient?
SMA5J30CAHE3/61 has a typical junction-to-lead thermal resistance (RθJL) of 25 °C/W and junction-to-ambient (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" copper pads. The lower RθJL indicates efficient heat transfer from die to PCB copper through the leadframe, while the higher RθJA reflects dependence on board layout for overall thermal management. Designers should prioritize thermal pad area and copper thickness to approach the 25 °C/W path in high-power surge scenarios.
SMA5J30CAHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMA5J30CAHE3/61 FAQ
1.How can I place an order for SMA5J30CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30CAHE3/61 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 SMA5J30CAHE3/61 reliable?
The price and inventory of SMA5J30CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30CAHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J30CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30CAHE3/61?
SMA5J30CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30CAHE3/61 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 SMA5J30CAHE3/61?
For technical support, including SMA5J30CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30CAHE3/61 requirements.
6.How does Aetrix verify that SMA5J30CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J30CAHE3/61 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 SMA5J30CAHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J30CAHE3/61?
All SMA5J30CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30CAHE3/61, 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 SMA5J30CAHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J30CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J30CAHE3/61 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 …
