Request Quote
(Ships tomorrow)
BZX84C10 Zener Diode Equivalent & Substitute Parts
Part Overview
The BZX84C10 is a 10 V zener diode manufactured by onsemi, rated for 350 mW power dissipation in a surface mount SOT-23-3 package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The BZX84C10 serves voltage regulation and protection applications requiring a 10 V reference with ±6% tolerance and surface mount compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nom) | 10 | V |
| Tolerance | ±6% | — |
| Power - Max | 350 | mW |
| Impedance (Max) | 20 | Ohms |
| Current - Reverse Leakage @ Vr | 200 | nA @ 7 V |
| Voltage - Forward (Vf) (Max) @ If | 900 | mV @ 10 mA |
| Operating Temperature | -55 to 150 | °C |
| Mounting Type | Surface Mount | — |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the BZX84C10 is determined by the following critical parameters:
- Zener Voltage (Vz): Must be 10 V nominal
- Tolerance: ±6% or tighter (±5%, ±2%, ±1%)
- Power Rating: Minimum 225 mW; 250 mW, 300 mW, or 350 mW acceptable
- Impedance (Zzt): Maximum 20 Ohms
- Reverse Leakage Current: 200 nA @ 7 V
- Forward Voltage (Vf): 900 mV maximum @ 10 mA
- Operating Temperature Range: Minimum -55°C to 150°C (extended range -65°C to 150°C acceptable)
- Package: SOT-23-3 (TO-236-3, SC-59) or equivalent footprint
- Mounting Type: Surface Mount
Substitute parts meeting all electrical parameters and package requirements are functionally equivalent. Parts with higher power ratings or tighter tolerances provide enhanced performance margins. Parts with extended temperature ranges (-65°C minimum) offer broader operational capability.
Parameter Comparison
| Part Number | Manufacturer | Vz (V) | Tolerance | Power (mW) | Zzt (Ohms) | Vf @ 10mA (mV) | Temp Range (°C) | Package | Status |
|---|---|---|---|---|---|---|---|---|---|
| BZX84C10 | onsemi | 10 | ±6% | 350 | 20 | 900 | -55 to 150 | SOT-23-3 | Obsolete |
| BZX84C10LT1G | onsemi | 10 | ±6% | 225 | 20 | 900 | -65 to 150 | SOT-23-3 | Active |
| SZBZX84C10LT1G | onsemi | 10 | ±6% | 225 | 20 | 900 | -65 to 150 | SOT-23-3 | Active |
| BZX84C10-7-F | Diodes Incorporated | 10 | ±6% | 300 | 20 | 900 | -65 to 150 | SOT-23-3 | Active |
| BZX84-A10,215 | Nexperia USA Inc. | 10 | ±1% | 250 | 20 | 900 | -65 to 150 | SOT-23-3 | Active |
| BZX84-C10,215 | NXP USA Inc. | 10 | ±5% | 250 | 20 | 900 | -65 to 150 | SOT-23-3 | Active |
| BZX84-C10,235 | Nexperia USA Inc. | 10 | ±5% | 250 | 20 | 900 | -65 to 150 | SOT-23-3 | Active |
| BZX84B10-7-F | Diodes Incorporated | 10 | ±2% | 300 | 20 | 900 | -65 to 150 | SOT-23-3 | Active |
| BZX84B10-TP | Micro Commercial Co | 10 | ±2% | 350 | 20 | 900 | -55 to 150 | SOT-23-3 | Active |
| BZX84C10 TR PBFREE | Central Semiconductor Corp | 10 | ±5% | 350 | 20 | 900 | -65 to 150 | SOT-23-3 | Active |
| BZX84C10T-7-F | Diodes Incorporated | 10 | ±6% | 150 | 20 | 900 | -65 to 150 | SOT-523 | Active |
Engineering Selection Recommendations
Direct Equivalents (Recommended Primary Substitutes)
BZX84C10LT1G (onsemi) and SZBZX84C10LT1G (onsemi) are direct functional equivalents with identical electrical specifications. Both are active products with extended operating temperature range (-65°C to 150°C). SZBZX84C10LT1G includes AEC-Q101 automotive qualification and is suitable for automotive applications. BZX84C10LT1G is available in higher inventory quantities.
Enhanced Performance Alternatives
BZX84B10-7-F (Diodes Incorporated) and BZX84B10-TP (Micro Commercial Co) provide tighter tolerance (±2%) and equivalent or superior power ratings (300 mW and 350 mW respectively). Both are active products with extended temperature ranges. BZX84B10-TP matches the original 350 mW power specification.
BZX84-A10,215 (Nexperia USA Inc.) offers the tightest tolerance (±1%) with AEC-Q101 automotive qualification, suitable for precision voltage reference applications.
Alternative Packaging Consideration
BZX84C10T-7-F (Diodes Incorporated) provides equivalent electrical performance but uses SOT-523 package instead of SOT-23-3. This part is suitable only if PCB layout accommodates the smaller package footprint.
Compliance Status
All active substitute parts are RoHS3 compliant and REACH unaffected. Automotive-qualified options (SZBZX84C10LT1G, BZX84-A10,215, BZX84-C10,235) carry AEC-Q101 certification.
Frequently Asked Questions (FAQ)
Q: Can BZX84C10LT1G replace BZX84C10 directly?
A: Yes. BZX84C10LT1G is a direct functional equivalent with identical zener voltage (10 V), tolerance (±6%), impedance (20 Ohms), and forward voltage characteristics. The lower power rating (225 mW vs. 350 mW) is acceptable if circuit design does not require the full 350 mW dissipation capability. Extended temperature range (-65°C to 150°C) provides additional operational margin.
Q: What is the difference between BZX84C10-7-F and BZX84B10-7-F?
A: Both parts are manufactured by Diodes Incorporated in SOT-23-3 package with 10 V zener voltage and 300 mW power rating. BZX84B10-7-F has tighter tolerance (±2% vs. ±6%), making it suitable for applications requiring more precise voltage regulation. Both have identical impedance and forward voltage specifications.
Q: Is SZBZX84C10LT1G suitable for automotive applications?
A: Yes. SZBZX84C10LT1G carries AEC-Q101 automotive qualification and is specifically designed for automotive-grade applications. It meets automotive reliability and performance standards.
Q: Can I use BZX84C10T-7-F as a substitute?
A: BZX84C10T-7-F is electrically equivalent but uses SOT-523 package instead of SOT-23-3. Substitution is possible only if the PCB layout and footprint accommodate the smaller SOT-523 package. The 150 mW power rating is lower than the original 350 mW specification and must be verified against circuit requirements.
Q: Which substitute offers the best tolerance specification?
A: BZX84-A10,215 (Nexperia USA Inc.) offers the tightest tolerance at ±1%, compared to the original ±6%. This part is recommended for precision voltage reference applications where tighter voltage accuracy is required.
Q: Are all substitute parts RoHS compliant?
A: Yes. All active substitute parts listed are RoHS3 compliant. The original BZX84C10 (obsolete) does not have RoHS status specified in the provided data.
Q: What is the minimum power rating acceptable for substitution?
A: The minimum acceptable power rating is 225 mW, provided the circuit design does not require higher power dissipation. If the original design utilizes the full 350 mW capability, select substitutes rated 300 mW or higher (BZX84C10-7-F, BZX84B10-7-F, BZX84B10-TP, or BZX84C10 TR PBFREE).
Q: Can I substitute with a part having different tolerance?
A: Yes, provided the tighter tolerance meets or exceeds circuit requirements. Parts with ±5%, ±2%, or ±1% tolerance are acceptable replacements for the ±6% original specification. Tighter tolerance provides improved voltage accuracy.
Q: What is the difference between cut tape and tape & reel packaging?
A: Cut Tape (CT) & Digi-Reel packaging is suitable for manual assembly or small-volume production. Tape & Reel (TR) packaging is optimized for automated assembly equipment. Both provide identical electrical performance; selection depends on assembly process requirements.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts