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Vishay General Semiconductor - Diodes Division SA13CHE3/73
- Part No.:
- SA13CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA13CHE3/73.pdf
- Description:
- TVS DIODE 13VWM 23.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,972
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Product details
Overview
SA13CHE3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 500 W peak pulse power (10/1000 μs), 23.3 A peak pulse current (IPPM), and 21.5 V maximum clamping voltage (VC) - used to protect MOSFETs and sensor interfaces in automotive control modules.
For engineers reviewing the SA13CHE3/73 datasheet, SA13CHE3/73 pinout, SA13CHE3/73 application, or SA13CHE3/73 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, DO-15 mechanical compatibility, and 175 °C junction temperature rating for under-hood automotive environments.
Technical Context
This device operates as a bi-directional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance, enabling fast response (<1 ns) to ESD and load-dump events.
The SA13CHE3/73 complies with AEC-Q101 stress testing for automotive use and meets UL 94 V-0 flammability requirements via its molded epoxy case. Its thermal design supports continuous operation up to TJ = 175 °C, with derating applied above TA = 25 °C per published curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse voltage before clamping begins; defines operating margin for 12 V automotive systems |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - tight breakdown window ensures predictable turn-on across production lots |
| VC @ IPPM | 21.5 V - clamping voltage at 23.3 A pulse; limits downstream IC stress during ISO 7637-2 pulse 1/2a/5a events |
| PPPM | 500 W - peak power handling with 10/1000 μs waveform; sufficient for CAN/LIN bus and sensor line protection |
| TJ max | 175 °C - enables placement near heat sources in engine control units without thermal derating penalties |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package compatible with legacy through-hole assembly and automated taping |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy body, matte tin-plated leads solderable per J-STD-002. Bi-directional construction means no cathode marking; terminals are non-polarized and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (both ends) | Bi-directional avalanche junction terminal | Either lead serves as input/output; symmetrical conduction allows placement without orientation check |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR over time and temperature; eliminates surface leakage paths common in silicon-only TVS devices |
| 500 W peak pulse power (10/1000 μs) | Handles high-energy transients like ISO 16750-2 load dump surges without degradation |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and chassis applications requiring zero field failure risk |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed modules during fault conditions, meeting automotive safety standards |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD ±15 kV contact discharge) |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting microcontroller I/O pins and LIN bus transceivers from alternator load dump and inductive switching spikes in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to limit transient voltage to ≤21.5 V. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V logic circuits by holding clamped voltage below absolute maximum ratings. | Use Scenario: Shielding analog output lines of pressure/temperature sensors from EFT bursts and cable discharge events in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff protector on 4–20 mA current loop outputs, absorbing repetitive 5 kHz burst noise without parameter drift. Use Value: Maintains signal integrity over 10+ years of operation due to stable VBR and low leakage (<1 μA at 13 V). |
| Telecom Power Supply Input Stage | Consumer Appliance Motor Drive Board |
Use Scenario: Safeguarding primary-side controller ICs in AC/DC adapters against lightning-induced surges on mains input lines. IC Role / Device Role / Timing Role: First-line transient suppressor upstream of bridge rectifier, clamping common-mode surges before they reach bulk capacitor. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (2 kV line-earth) without additional MOV staging. | Use Scenario: Protecting half-bridge gate drivers in washing machine motor inverters from shoot-through-inducing voltage spikes during MOSFET switching. IC Role / Device Role / Timing Role: Local clamp across DC bus rails to suppress dV/dt ringing caused by parasitic inductance in high-current PCB traces. Use Value: Reduces need for snubber networks, lowering BOM count and board space while maintaining <100 ns response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A-E3/5A | Uni-directional; VF = 3.5 V forward drop; no AEC-Q101 qualification | Requires polarity-aware layout; unsuitable for floating or AC-coupled lines | Select when cost sensitivity outweighs automotive qualification needs and circuit topology permits unidirectional placement |
| 1.5KE13CA | Higher PPPM (1500 W); larger DO-201AD package; higher VC (24.4 V) | Occupies more PCB area; clamps at higher voltage, risking downstream IC margin | Choose only when system-level surge tests exceed 500 W requirements and board space allows larger footprint |
Compared with SMAJ13A-E3/5A and 1.5KE13CA, the SA13CHE3/73 uniquely combines bi-directionality, AEC-Q101 qualification, and DO-15 form factor - making it the only option for space-constrained, automotive-grade, polarity-agnostic transient suppression.
Availability
SA13CHE3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer appliance motor drives requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SA13CHE3/73 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, and protection devices with emphasis on reliability, thermal performance, and automotive qualification.
The SAxxCH series targets automotive and industrial transient suppression, engineered specifically for AEC-Q101 compliance, high-temperature operation, and robust clamping consistency in harsh electromagnetic environments.
FAQ
What is the polarity configuration of the SA13CHE3/73?
The SA13CHE3/73 is a bi-directional TVS diode with no polarity marking on the DO-15 package. Both leads are functionally identical, allowing installation without orientation verification - ideal for automated assembly and floating signal lines where voltage polarity may reverse.
Does the SA13CHE3/73 meet automotive reliability standards?
Yes, the SA13CHE3/73 carries AEC-Q101 qualification, having passed stress tests including high-temperature reverse bias, temperature cycling, and ESD. This confirms its suitability for under-hood automotive applications such as engine control modules and body electronics where field failure is unacceptable.
What is the maximum clamping voltage of the SA13CHE3/73 under surge conditions?
The SA13CHE3/73 exhibits a maximum clamping voltage (VC) of 21.5 V at its rated peak pulse current of 23.3 A (10/1000 μs waveform). This value is measured per JEDEC standards and ensures downstream components remain within safe operating voltage margins during transient events.
Can the SA13CHE3/73 replace uni-directional TVS diodes in existing designs?
The SA13CHE3/73 can replace uni-directional types like SA13A only if the circuit does not rely on forward conduction or polarity-specific behavior. Its bi-directional nature eliminates cathode/anode constraints but introduces ~2× leakage at VWM versus uni-directional counterparts - verify system standby current budgets before substitution.
What is the thermal derating behavior of the SA13CHE3/73 above 25 °C ambient?
The SA13CHE3/73 follows a linear derating curve from 100 % power at TA = 25 °C down to 0 % at TA = 175 °C. At 100 °C ambient, its steady-state power dissipation drops to approximately 1.5 W - critical for placement near heat-generating components in compact enclosures.
SA13CHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 21A
- 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)
SA13CHE3/73 FAQ
1.How can I place an order for SA13CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA13CHE3/73 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 SA13CHE3/73 reliable?
The price and inventory of SA13CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA13CHE3/73 is usually 5 days.
3.What payment methods are accepted for SA13CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA13CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA13CHE3/73?
SA13CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA13CHE3/73 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 SA13CHE3/73?
For technical support, including SA13CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA13CHE3/73 requirements.
6.How does Aetrix verify that SA13CHE3/73 is sourced from the original manufacturer or authorized distributors?
All SA13CHE3/73 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 SA13CHE3/73 meets industry standards.
7.What is the process for return or replacement of SA13CHE3/73?
All SA13CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA13CHE3/73, 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 SA13CHE3/73 part is unused and in its original packaging.
Return procedure for SA13CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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