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Vishay General Semiconductor - Diodes Division SMA5J10CAHM3/H
- Part No.:
- SMA5J10CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J10CAHM3/H.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,426
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Product details
Overview
SMA5J10CAHM3/H 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 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V clamping voltage (VC) at 29.4 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 dump transients.
For engineers reviewing the SMA5J10CAHM3/H datasheet, SMA5J10CAHM3/H pinout, SMA5J10CAHM3/H application, or SMA5J10CAHM3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 80 °C/W), bidirectional clamping behavior, and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker testing.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance regardless of transient polarity - critical for AC-coupled or floating signal lines. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1.0 µA at VWM), while the low incremental surge resistance enables rapid energy diversion during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a).
The device is rated for TJ = -55 °C to +150 °C operation and meets MSL Level 1 per J-STD-020 (260 °C peak reflow). Its 500 W PPPM rating is specified under standardized 10/1000 µs waveform conditions with derating above 25 °C ambient, and thermal performance is validated using 0.2" × 0.2" copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR min/max | 11.1 V / 12.3 V at IT = 1 mA - Tight breakdown window ensures predictable turn-on and compatibility with downstream overvoltage thresholds. |
| VC @ IPPM | 17.0 V at 29.4 A - Clamped voltage during 500 W surge; limits stress on protected ICs such as CAN transceivers or ADC front-ends. |
| PPPM | 500 W - Peak pulse power handling with 10/1000 µs waveform; supports robust immunity to ISO 16750-2 load dump and IEC 61000-4-5 surges. |
| TJ max | +150 °C - Enables use in under-hood automotive environments and thermally constrained industrial enclosures without derating penalties. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance measured on standard 0.2" × 0.2" pads; informs PCB thermal layout requirements. |
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 identically as clamping nodes; no cathode band marking - enables blind placement on differential or AC lines. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC in both directions - eliminates need for polarity-aware layout in RS-485, CAN, or Ethernet PHY protection. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - required for engine control, ADAS sensor, and body electronics. |
| Halogen-free & RoHS-compliant | HM3 suffix denotes halogen-free molding compound meeting JEDEC J-STD-020 and JESD201 Class 2 whisker resistance - supports green manufacturing compliance. |
| Low profile SMA package | Height ≤ 2.29 mm - fits space-constrained modules like automotive ECUs and portable test equipment where Z-height is critical. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to ISO 7637-2 transients and alternator load dump. IC Role / Device Role / Timing Role: Bidirectional TVS clamp limiting voltage excursions to <17.0 V during 500 W surges, preserving ADC input integrity and preventing latch-up. Use Value: Prevents field failures caused by repetitive 12 V system surges up to 150 °C ambient - validated per AEC-Q101 stress tests. |
Use Scenario: Shielding half-duplex RS-485 transceivers (e.g., SN65HVD230) in factory automation PLC I/O cards from EFT and surge coupling via long cable runs. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) bidirectional clamp absorbing common-mode transients on A/B bus lines without distorting data signals. Use Value: Maintains signal integrity up to 500 kbps while surviving repeated 4 kV EFT bursts - enabled by low clamping voltage and symmetrical VBR tolerance. |
| Consumer Power Adapter Input | Telecom DSL Line Protection |
Use Scenario: Secondary-side overvoltage suppression on 12 V DC outputs of wall adapters subjected to lightning-induced surges on connected devices. IC Role / Device Role / Timing Role: Standby-mode TVS shunting transient energy before it reaches downstream LDOs or microcontrollers. Use Value: 1.0 µA max leakage at 10 V ensures minimal standby current drain - critical for Energy Star and EU CoC Tier 2 compliance. |
Use Scenario: Primary protection stage for ADSL/VDSL line drivers interfacing with unshielded twisted-pair telephone lines vulnerable to induced surges. IC Role / Device Role / Timing Role: First-line bidirectional clamp on tip/ring pair, coordinating with gas discharge tube (GDT) upstream for multi-stage telecom surge immunity. Use Value: 17.0 V clamping prevents damage to sensitive line driver ICs (e.g., MAX232 derivatives) during 10/1000 µs surges up to 500 W. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J10CAHE3/H | Same electrical specs; RoHS-compliant but not halogen-free; uses E3 suffix instead of HM3. | Lacks JESD201 Class 2 whisker resistance and halogen-free certification - unsuitable for strict automotive or green procurement mandates. | Select SMA5J10CAHE3/H only when halogen-free requirement is waived and AEC-Q101 qualification remains mandatory. |
| SMA6J10CA-M3 | 600 W PPPM rating (vs. 500 W); same VWM/VBR/VC; larger SMA package variant with higher thermal mass. | Higher surge capacity suits harsher environments (e.g., commercial vehicle alternator protection), but requires revised pad layout and footprint validation. | Choose SMA6J10CA-M3 when system-level surge testing exceeds 500 W or when extended lifetime under repetitive transients is required. |
Compared with SMA5J10CAHE3/H, SMA5J10CAHM3/H adds halogen-free construction and whisker resistance for automotive supply chain compliance; versus SMA6J10CA-M3, it trades 100 W peak power for tighter board space and lower cost - making it optimal for cost-sensitive, space-constrained AEC-Q101 designs.
Availability
SMA5J10CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and telecom line protection requiring stable component supply, AEC-Q101 qualification, and halogen-free compliance.
Supply support for SMA5J10CAHM3/H 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, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMA5J series is engineered specifically for high-power-density transient suppression in space-constrained, high-temperature environments - targeting AEC-Q101-compliant automotive subsystems and ruggedized industrial interfaces.
FAQ
What does the 'HM3' suffix indicate in SMA5J10CAHM3/H?
The HM3 suffix in SMA5J10CAHM3/H denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance - confirming compliance with automotive green manufacturing standards. It also signifies AEC-Q101 qualification, distinguishing it from commercial-grade E3 variants. This suffix is critical for Tier 1 automotive suppliers requiring full material declaration and long-term reliability validation.
Is SMA5J10CAHM3/H suitable for protecting CAN FD bus lines?
Yes, SMA5J10CAHM3/H is suitable for CAN FD bus protection due to its 10 V VWM (compatible with 12 V nominal bus voltage), 17.0 V clamping voltage (below typical CAN transceiver absolute maximum ratings), and bidirectional symmetry - ensuring equal protection on CAN_H and CAN_L lines without polarity concerns. Its 500 W PPPM rating meets ISO 11898-2 surge immunity requirements.
Does SMA5J10CAHM3/H have polarity markings on the package?
No, SMA5J10CAHM3/H has no polarity markings because it is a bidirectional TVS diode - both terminals are functionally identical and interchangeable. Unlike unidirectional variants (e.g., SMA5J10A), it lacks a cathode band, enabling simplified automated placement and eliminating orientation errors during assembly.
What is the maximum junction temperature rating for SMA5J10CAHM3/H?
The maximum junction temperature (TJ max) for SMA5J10CAHM3/H is +150 °C, validated per AEC-Q101 stress testing. This allows reliable operation in under-hood automotive locations and sealed industrial enclosures where ambient temperatures exceed 105 °C - provided PCB thermal design maintains RθJA ≤ 80 °C/W using recommended 0.2" × 0.2" copper pads.
How does SMA5J10CAHM3/H compare to SMA5J10A in circuit design?
SMA5J10CAHM3/H is bidirectional with symmetrical clamping, while SMA5J10A is unidirectional and requires correct cathode orientation. SMA5J10CAHM3/H supports AC-coupled or floating lines (e.g., RS-485, CAN), whereas SMA5J10A suits DC-biased rails like 12 V power inputs. Both share identical VWM, VBR, and PPPM, but SMA5J10CAHM3/H adds AEC-Q101 and halogen-free compliance.
SMA5J10CAHM3/H 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 29.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J10CAHM3/H FAQ
1.How can I place an order for SMA5J10CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J10CAHM3/H 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 SMA5J10CAHM3/H reliable?
The price and inventory of SMA5J10CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J10CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMA5J10CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J10CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J10CAHM3/H?
SMA5J10CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J10CAHM3/H 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 SMA5J10CAHM3/H?
For technical support, including SMA5J10CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J10CAHM3/H requirements.
6.How does Aetrix verify that SMA5J10CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMA5J10CAHM3/H 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 SMA5J10CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMA5J10CAHM3/H?
All SMA5J10CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J10CAHM3/H, 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 SMA5J10CAHM3/H part is unused and in its original packaging.
Return procedure for SMA5J10CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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