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AH03200003 32.768 kHz Crystal Equivalent & Substitute Parts
Part Overview
The AH03200003 is a 32.768 kHz tuning fork crystal manufactured by TXC CORPORATION, designed for real-time clock (RTC) and timing applications requiring low-frequency oscillation. This surface-mount device operates at ±20ppm frequency tolerance with a 12.5pF load capacitance and 70 kOhms equivalent series resistance. The component is AEC-Q200 rated and RoHS compliant, suitable for automotive and industrial applications across the -40°C to 85°C temperature range. Substitute parts are identified when design requirements necessitate alternative sourcing, inventory optimization, or component availability management while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Unit | Criticality for Substitution |
|---|---|---|---|
| Frequency | 32.768 | kHz | Critical - Must Match Exactly |
| Frequency Tolerance | ±20 | ppm | Critical - Must Match Exactly |
| Load Capacitance | 12.5 | pF | Critical - Must Match Exactly |
| ESR (Equivalent Series Resistance) | 70 | kOhms | Critical - Must Match Exactly |
| Operating Temperature Range | -40 to 85 | °C | Critical - Must Match or Exceed |
| Mounting Type | Surface Mount | - | Critical - Must Match |
| Package Type | 2-SMD, No Lead | - | Critical - Must Match |
| AEC-Q200 Rating | Yes | - | Critical - Automotive Compliance |
| RoHS Compliance | Yes | - | Critical - Environmental Compliance |
| Moisture Sensitivity Level | 1 (Unlimited) | - | Important - Handling & Storage |
Substitute Part Grouping Explanation
Substitute parts for the AH03200003 are classified based on strict electrical and mechanical parameter alignment. All substitute candidates must satisfy the following non-negotiable criteria:
Electrical Parameters (Exact Match Required):
- Frequency: 32.768 kHz
- Frequency Tolerance: ±20ppm
- Load Capacitance: 12.5pF
- ESR: 70 kOhms
- Operating Mode: Fundamental
Mechanical Parameters (Exact Match Required):
- Package Type: 2-SMD, No Lead
- Mounting Type: Surface Mount
- Operating Temperature Range: -40°C to 85°C minimum
Compliance Parameters (Match or Exceed Required):
- AEC-Q200 Rating: Required
- RoHS Compliance: Required
- Moisture Sensitivity Level: 1 (Unlimited)
Substitutes are grouped into two categories:
Parametric Equivalent: Parts with identical electrical specifications and equivalent mechanical form factor from the same manufacturer series.
Similar Manufacturer Part: Parts from alternative manufacturers meeting all electrical and mechanical requirements with potential dimensional variations within the 2-SMD, No Lead package specification.
Parameter Comparison
| Parameter | AH03200003 (Main) | AH-32.768KDZF-T (Parametric Equivalent) | CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA (Similar) |
|---|---|---|---|
| Manufacturer | TXC CORPORATION | TXC CORPORATION | Micro Crystal AG |
| Frequency | 32.768 kHz | 32.768 kHz | 32.768 kHz |
| Frequency Tolerance | ±20ppm | ±20ppm | ±20ppm |
| Load Capacitance | 12.5pF | 12.5pF | 12.5pF |
| ESR | 70 kOhms | 70 kOhms | 70 kOhms |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C |
| Package / Case | 2-SMD, No Lead | 2-SMD, No Lead | 2-SMD, No Lead |
| Size / Dimension | 0.126" L x 0.059" W (3.20mm x 1.50mm) | 0.126" L x 0.059" W (3.20mm x 1.50mm) | 0.079" L x 0.047" W (2.00mm x 1.20mm) |
| Height - Seated (Max) | 0.033" (0.85mm) | 0.033" (0.85mm) | 0.024" (0.60mm) |
| AEC-Q200 Rating | Yes | Yes | Yes |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Packaging | Bulk | Tape & Reel (TR) | Tape & Reel (TR) |
Engineering Selection Recommendations
AH-32.768KDZF-T (Parametric Equivalent - Recommended Primary Substitute)
The AH-32.768KDZF-T is a direct parametric equivalent from TXC CORPORATION with identical electrical specifications and mechanical dimensions to the AH03200003. This part maintains the same 3.20mm x 1.50mm footprint and 0.85mm maximum seated height, ensuring PCB layout compatibility without redesign. Both parts carry AEC-Q200 automotive qualification and RoHS3 compliance. The primary distinction is packaging format: AH-32.768KDZF-T is supplied in Tape & Reel format, suitable for high-volume automated assembly operations. Inventory availability is significantly higher (10,940 pcs vs. 2,400 pcs), supporting extended production runs.
CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA (Similar Manufacturer Part - Alternative Substitute)
The CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA from Micro Crystal AG meets all electrical requirements with identical frequency, tolerance, load capacitance, and ESR specifications. This part is AEC-Q200 rated and ROHS3 compliant. The mechanical difference is significant: the CM8V series uses a smaller 2.00mm x 1.20mm footprint with 0.60mm maximum seated height, compared to the 3.20mm x 1.50mm x 0.85mm dimensions of the AH series. This dimensional reduction requires PCB layout modification and may affect circuit board space allocation. Selection of this part is appropriate when space constraints are primary design drivers or when Micro Crystal AG supply chain integration is preferred. Inventory availability is highest among all options (36,480 pcs).
Selection Criteria Summary:
- Maintain existing PCB layout: Select AH-32.768KDZF-T
- Reduce component footprint: Select CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA
- High-volume automated assembly: Select AH-32.768KDZF-T or CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA (both Tape & Reel)
- Maximize inventory availability: Select CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA
Frequently Asked Questions (FAQ)
Q: Can the AH-32.768KDZF-T be used as a direct replacement for AH03200003 without PCB modifications?
A: Yes. The AH-32.768KDZF-T is a parametric equivalent with identical electrical specifications and mechanical dimensions (3.20mm x 1.50mm x 0.85mm). No PCB layout changes are required. The only difference is packaging format (Tape & Reel vs. Bulk).
Q: What is the primary difference between the AH03200003 and CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA?
A: Both parts have identical electrical specifications (32.768 kHz, ±20ppm, 12.5pF, 70 kOhms). The difference is mechanical: the CM8V series has a smaller footprint (2.00mm x 1.20mm x 0.60mm) compared to the AH series (3.20mm x 1.50mm x 0.85mm). PCB layout modification is required when switching to the CM8V part.
Q: Are all three parts AEC-Q200 rated?
A: Yes. The AH03200003, AH-32.768KDZF-T, and CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA all carry AEC-Q200 automotive qualification.
Q: What is the difference between RoHS and ROHS3 compliance?
A: The AH03200003 is RoHS compliant. The AH-32.768KDZF-T and CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA are ROHS3 compliant, which represents an updated version of the RoHS directive with additional restricted substance requirements. ROHS3 compliance exceeds RoHS requirements.
Q: Can I use the CM8V part if my PCB is designed for the larger AH footprint?
A: No. The CM8V part has a smaller footprint (2.00mm x 1.20mm) compared to the AH series (3.20mm x 1.50mm). Direct substitution on an existing PCB designed for the AH footprint is not possible without PCB redesign and component pad modification.
Q: Which substitute part has the best inventory availability?
A: The CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA has the highest inventory (36,480 pcs), followed by AH-32.768KDZF-T (10,940 pcs), and AH03200003 (2,400 pcs).
Q: Are all parts supplied in Tape & Reel packaging?
A: No. The AH03200003 is supplied in Bulk packaging. The AH-32.768KDZF-T and CM8V-T1A-32.768KHZ-12.5PF-20PPM-TA-QA are both supplied in Tape & Reel format, suitable for automated assembly.
Q: Do all parts have the same moisture sensitivity level?
A: Yes. All three parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.
Q: What is the operating temperature range for all substitute parts?
A: All three parts operate across -40°C to 85°C, meeting industrial and automotive temperature requirements.
Q: Can I mix different manufacturers in the same production batch?
A: Yes, provided your quality assurance procedures permit multi-source component qualification. All three parts meet identical electrical specifications and AEC-Q200 automotive standards. Consult your design documentation and supply chain procedures for multi-source approval requirements.
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