SMAJ16A Alternative / Equivalent / Replacement - 400W TVS Diode 16V SMA | YINT
Are you searching for an SMAJ16A alternative, SMAJ16A equivalent, or SMAJ16A replacement? YINT Electronics offers a direct SMAJ16A substitute with identical specs to Littelfuse, Vishay, and ON Semiconductor parts for 12V and 15V DC rail protection.
1. Product Overview
The SMAJ16A is a 400W unidirectional TVS diode that protects 12V and 15V DC power rails from lightning, ESD, and inductive load switching transients. It has a stand-off voltage of 16V, breakdown range of 17.8V to 19.7V, and clamping voltage of 26.0V. The device responds in under 1ns and delivers 15.4A peak pulse current in the compact SMA DO-214AC package.
Engineers looking for an SMAJ16A replacement for Littelfuse, Vishay, ON Semiconductor, Diodes Incorporated, STMicroelectronics, Bourns, or Taiwan Semiconductor can confidently specify YINT's SMAJ16A. It operates from -55C to +150C and is suitable for automotive 12V systems, industrial 15V sensor supplies, and PoE powered device inputs.
2. Key Features
Stand-off Voltage: 16V -- Protects 12V and 15V DC rails
Breakdown Voltage: 17.8V ~ 19.7V -- Tight +/-5% tolerance
Max Clamping Voltage: 26.0V -- Low VC protects downstream components
Reverse Leakage: 1µA max -- Ultra-low standby current
Response Time: < 1ns -- Instant transient protection
Peak Pulse Current: 15.4A -- 10/1000µs surge capability
Temperature Range: -55C to +150C -- Industrial and automotive rated
Package: SMA DO-214AC -- Compact footprint
RoHS Compliant: Lead-free
3. Recommended YINT Alternative for SMAJ16A
| Original Part Number | YINT Alternative | Device Type | Package | Notes |
| SMAJ16A | SMAJ16A (YINT equivalent) | TVS Diode | SMA (DO-214AC) | Drop-in replacement |
4. Key Parameters
| Part Number | SMAJ16A |
| Package | SMA (DO-214AC) |
| Polarity | Unidirectional |
| PPK (W) | 400 |
| Vrwm (V) | 16.0 |
| Vbr (V) | 17.8 ~ 19.7 |
| Ipp (A) | 15.4 |
| Vc (V) | 26.0 |
| IR (µA) | 1 |
| Tj (C) | -55 ~ +150 |
5. Cross Reference Guide
| Brand | Original Part | YINT Cross |
| Littelfuse | SMAJ16A | SMAJ16A |
| Vishay | SMAJ16A | SMAJ16A |
| ON Semi | SMAJ16A | SMAJ16A |
| Diodes Inc. | SMAJ16A | SMAJ16A |
| Taiwan Semi | SMAJ16A | SMAJ16A |
6. Applications
- 12V automotive battery line transient protection in ECUs and body modules
- 15V industrial sensor and actuator power supply surge clamping
- 12V DC-DC converter input and output overvoltage protection
- PoE powered device input protection per IEEE 802.3af/at
- PLC I/O module power input surge and EFT protection
- Battery management system (BMS) 12V auxiliary rail protection
- Lighting driver 12V/15V DC bus protection per IEC 61000-4-5
- HVAC and building automation controller power rail clamping
7. Why Choose YINT
- 19+ years of manufacturing expertise in circuit protection since 2006
- 40+ patents and certifications per MIL-STD and JEDEC standards
- Global sales network across North America, Europe, Asia
- Full SMAJ series from 5.0V to 200V for one-stop TVS sourcing
- Pin-to-pin compatible with SMAJ16A from all major brands
- Engineering team for application assistance
- Free samples for testing upon request
- Direct manufacturer pricing with volume discounts
8. FAQ
Q1: Is YINT SMAJ16A a direct replacement for Littelfuse or Vishay?
A: Yes. Identical specs and SMA DO-214AC package. No PCB redesign needed.
Q2: What is the difference between SMAJ16A and SMAJ16CA?
A: SMAJ16A is unidirectional for DC, SMAJ16CA is bidirectional for AC circuits.
Q3: What is the peak pulse power of SMAJ16A?
A: 400W for a 10/1000µs exponential waveform at 25C.
Q4: Can SMAJ16A be used for 24V systems?
A: No. Use SMAJ24A or SMAJ26A for 24V DC rail protection.
Q5: What is the operating temperature range?
A: -55C to +150C junction temperature for industrial and automotive use.
Q6: Does YINT provide free samples?
A: Yes. Contact YINT with your project details.
9. Conclusion
YINT Electronics' SMAJ16A is a reliable, cost-effective replacement for industry-standard TVS diodes. It delivers 400W peak pulse power with a 26.0V clamping voltage for protecting 12V and 15V DC rails. Contact YINT for datasheets, samples, and pricing.
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Need Help Finding the Right Alternative? Contact YINT Electronics at global@yint.com.cn for datasheets, samples, or pricing. |



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